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PERCEPTIONe&ex
DIGITAL PBX
INSTALLATION AND MAINTENANCE MANUAL

All rights reserved. No part of this manual, covered by the
copyrights hereon, may be reproduced in any form or by any
means—graphic, electronic, or mechanical, including recording, taping, photocopying, or information retrieval systems—
without express written permission of the publisher of this
material.

Pe&ex
SERIAL NO._____________________

INSTALLATION INSTRUCTIONS
SECTION 200-255-200
FEBRUARY 1992

PERCEPTIONe&ex
INSTALLATION INSTRUCTIONS
TABLE OF CONTENTS
PARAGRAPH

SUBJECT

PAGE

CHAPTER 1
1.
2.
3.
4.
5.
5.00
5.10
5.20

INTRODUCTION ...............................................................................................
PURPOSE ..........................................................................................................
ORGANIZATION ................................................................................................
REFERENCE DOCUMENTATION .....................................................................
SYSTEM MNEMONICS .....................................................................................
INSPECTION, PACKING AND STORAGE ........................................................
Inspection .......................................................................................................
Packing and Storage ......................................................................................
Required Tools ...............................................................................................

1-1
1-1
1-1
1-1
1-1
1-2
1-2
1-2
1-2

CHAPTER 2
1.
1.00
1.10
1.20
2.
2.00
2.10
2.20
3.
4.
5.
6.

SYSTEM DESCRIPTION ..................................................................................
PERCEPTIONe .................................................................................................
Basic Equipment Cabinet ...............................................................................
Expansion Cabinet .........................................................................................
Power Supply .................................................................................................
PERCEPTIONex ................................................................................................
Basic Equipment Cabinet ...............................................................................
Expansion Cabinet .........................................................................................
Power Supply .................................................................................................
PEAK LOAD BATTERY......................................................................................
EXTENDED RESERVE POWER .......................................................................
POWER FAILURE/EMERGENCY TRANSFER ..................................................
PRINTED CIRCUIT BOARD DESCRIPTION ......................................................
NFDU (Floppy Disk Drive Unit) .......................................................................
LCCU (Central Control Unit) ...........................................................................
NTWU (Time Switch Unit) ..............................................................................
NPRU (Paging and Music-on-Hold Unit) ........................................................
NRCU (Receiver Unit) ....................................................................................
NEKU (Electronic Telephone Unit) .................................................................
NDKU (Digital Telephone Unit) .......................................................................
NSTU (Standard Telephone Unit) ..................................................................
NDSU (DSS Console Controller Unit) ............................................................
NDCU (Data Control Unit) ..............................................................................
NMDU (Modem Pooling Unit) .........................................................................
NCOU (Central Office Trunk Unit) ..................................................................
NEMU (E & M TIE Trunk Unit) ........................................................................
NLSU (DID Trunk Interface Unit) ....................................................................
NDTU (T1 Interface) .......................................................................................
NOCU (Off-hook Call Announce Interface Unit) ..............................................
HVSU/HVSI (Off-hook Call Announce PCBs) .................................................
DVSI (Digital Off-hook Call Announce PCB) ...................................................

2-1
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2-6

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INSTALLATION INSTRUCTIONS
SECTION 200-255-200
FEBRUARY 1992
PARAGRAPH
7.

SUBJECT

PAGE

8.
8.00
8.10
8.20
8.30
8.40
8.50
8.60
8.70
8.80
8.90

SYSTEM INDICATORS AND CONTROLS ........................................................
NFDU ..............................................................................................................
LCCU ..............................................................................................................
NTWU .............................................................................................................
NPRU .............................................................................................................
NCOU/NEMU/NLSU .......................................................................................
NDTU ..............................................................................................................
NEKU/NSTU/NOCU/NDKU ............................................................................
NDSU .............................................................................................................
NDCU .............................................................................................................
NMDU .............................................................................................................
NPSA-M/LPSA-M ...........................................................................................
NPSA-S ..........................................................................................................
PERIPHERAL EQUIPMENT ..............................................................................
Electronic and Digital Telephone ....................................................................
Headset Upgrade (HHEU) ..............................................................................
Attendant Console ..........................................................................................
DSS Console ..................................................................................................
Standard Telephone .......................................................................................
DDIU/PDIU .....................................................................................................
Paging Equipment ..........................................................................................
Music-on-Hold ................................................................................................
Universal Night Answer ..................................................................................
Station Message Detail Recording .................................................................

2-7
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2-7
2-7
2-7
2-7
2-7
2-8
2-8
2-8
2-8
2-8
2-8
2-8
2-8
2-9
2-9
2-9
2-9
2-9
2-9
2-9
2-9
2-9

CHAPTER 3
1.
2.
3.
4.
5.

INSTALLATION SITE REQUIREMENTS ..........................................................
COMMERCIAL POWER .....................................................................................
ENVIRONMENTAL REQUIREMENTS...............................................................
EQUIPMENT ROOM RECOMMENDATIONS.....................................................
CABLING CONSIDERATIONS ..........................................................................
GROUNDING .....................................................................................................

3-1
3-1
3-1
3-1
3-1
3-2

CHAPTER 4
1.
1.00
1.10
2.
2.00
2.10
2.20
3.
3.00
3.10
3.20
3.30
3.40
3.50
3.60

SYSTEM INSTALLATION .................................................................................
PERCEPTIONe .................................................................................................
Power Supply Installation ...............................................................................
Expansion Cabinet Installation .......................................................................
PERCEPTIONex ................................................................................................
Power Supply Installation ...............................................................................
First Expansion Cabinet Installation ...............................................................
Second Expansion Cabinet Installation ..........................................................
PRINTED CIRCUIT BOARD INSTALLATION .....................................................
NFDU ..............................................................................................................
LCCU ..............................................................................................................
NTWU .............................................................................................................
NPRU .............................................................................................................
NEKU, NDKU, and NOCU ..............................................................................
NSTU ..............................................................................................................
NDSU .............................................................................................................

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INSTALLATION INSTRUCTIONS
SECTION 200-255-200
FEBRUARY 1992
PARAGRAPH
3.70
3.80
3.90
4.
5.
5.00
5.10
5.20
5.30
5.40
5.50
5.60
5.70
5.80
5.90
6.
6.00
6.10
6.20
6.30
6.40
6.50
6.60
6.70
6.80
6.90
6.100
6.110
6.120
6.130
6.140
6.150
6.160
6.170
6.180
7.
7.00
8.00
9.
9.00
9.10
9.20
9.30
9.40
9.50
9.60
9.80

SUBJECT
NEMU, NCOU, and NLSU ..............................................................................
NDTU ..............................................................................................................
NMDU and NDCU ..........................................................................................
CABLE CONNECTIONS ....................................................................................
ELECTRONIC TELEPHONE STATION EQUIPMENT INSTALLATION .............
Electronic Telephone Connections .................................................................
Electronic Telephone Wall Mounting ..............................................................
Off-hook Call Announce .................................................................................
Carbon Handset Transmitter Installation ........................................................
HHEU Installation ...........................................................................................
Attendant Console Connection .......................................................................
DSS Console Connections .............................................................................
Digital Data Interface Unit Connections (DDIU) ..............................................
DDIU-MAT ......................................................................................................
DDIU-MA ........................................................................................................
DIGITAL TELEPHONE STATION EQUIPMENT INSTALLATION ......................
Digital Telephone Connections .......................................................................
Digital Telephone Wall Mounting ....................................................................
Off-hook Call Announce .................................................................................
Carbon Handset Transmitter Installation ........................................................
Beep Strap Removal ......................................................................................
Microphone/Speaker Threshold Adjustment (Speakerphone only) .................
HHEU Installation ...........................................................................................
Attendant Console Connection .......................................................................
DSS Console Connections .............................................................................
Digital Data Interface Unit Installation (PDIU) .................................................
Common DIU Connections .............................................................................
EIA Interface Leads (Signals) .........................................................................
DIP Switch Options .........................................................................................
PDIU-DI Installation ........................................................................................
PDIU-DI to Personal Computer (PC) Installation .............................................
PDIU-DS to Printer Installation .......................................................................
PDIU-DS to Modem Installation ......................................................................
PDIU-DS Disassembly and Assembly ............................................................
PDIU-DI/PDIU-DS Installation Tests ..............................................................
STANDARD TELEPHONE EQUIPMENT INSTALLATION .................................
Standard Telephone Connections ..................................................................
TRUNK CONNECTIONS ....................................................................................
PERIPHERAL EQUIPMENT INSTALLATION .....................................................
Modem Pooling Connections (DDIU-MA only) ................................................
Power Failure/Emergency Transfer ................................................................
Reserve Power ...............................................................................................
Paging Equipment ..........................................................................................
Music-on-Hold ................................................................................................
Universal Night Answer ..................................................................................
Station Message Detail Recording .................................................................
Lodging/Health Care Data Audit .....................................................................

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PAGE
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INSTALLATION INSTRUCTIONS
SECTION 200-255-200
FEBRUARY 1992
PARAGRAPH

SUBJECT

PAGE

10.
10.00

SYSTEM POWER UP ........................................................................................
General ...........................................................................................................

4-67
4-67

CHAPTER 5

MDF ARRANGEMENT ......................................................................................

5-1

TABLE LIST
TABLE
5-1
5-2
5-3
5-4
5-5
5-6
5-7
5-8
5-9
5-10
5-11
5-12
5-13
5-14
5-15

SUBJECT
CARD SLOT/CABLE CONNECTOR MATRIX ........................................................
LIST OF CONNECTOR CABLES ..........................................................................
ATTENDANT CONSOLE #0 & #1 ..........................................................................
PAGING, MUSIC & UNA RINGING .......................................................................
NDSU/NDKU (DSS CONSOLE) "C" SLOT ............................................................
NDSU/NEKU/NDKU/NSTU/NDCU/NMDU/NOCU (L00 ~ L03/L15 ~ L18) ..............
NDSU/NEKU/NDKU/NSTU/NDCU/NMDU/NOCU (L04 ~ L11/L19 ~ L26) or
NCOU/NLSU/NEMU (T07 ~ T00/T15 ~ T08) .........................................................
CENTRAL OFFICE LINE CONNECTION & PFT CONTROL J1 .............................
STATION LINE CONNECTION J2 .........................................................................
ATTENDANT CONSOLE #0 & #1 ..........................................................................
PAGING, MUSIC & UNA RINGING .......................................................................
NCOU/NEMU/NLSU/NDTU (T00 ~ T15) ................................................................
NDSU/NEKU/NDKU/NSTU/NDCU/NMDU/NOCU (U00 ~ U31) or
NCOU/NEMU/NLSU (T16 ~ T31) ...........................................................................
CENTRAL OFFICE LINE CONNECTION & PFT CONTROL J1 .............................
STATION LINE CONNECTION J2 .........................................................................

PAGE
5-4
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5-7
5-8
5-9
5-10
5-11
5-12
5-13
5-14
5-15
5-16
5-17
5-18

FIGURE LIST
FIGURE
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
3-1
3-2
3-3
4-1
4-2
4-3
4-4
4-5

SUBJECT
PERCEPTIONe BASIC CABINET ..........................................................................
PERCEPTIONe EXPANSION CABINET ...............................................................
PERCEPTIONex BASIC CABINET ........................................................................
PERCEPTIONex WITH EXPANSION CABINETS ..................................................
PERCEPTIONex MAIN POWER SUPPLY .............................................................
DPFT FUNCTIONAL DIAGRAM ............................................................................
PERCEPTIONe PCB INSTALLATION ...................................................................
PERCEPTIONex PCB INSTALLATION .................................................................
PERCEPTIONe MINIMUM FLOOR SPACE ..........................................................
PERCEPTIONex MINIMUM FLOOR SPACE .........................................................
UL GROUNDING DIAGRAM ..................................................................................
PERCEPTIONe BASIC CABINET REAR COVER ..................................................
PERCEPTIONe CABLE CONNECTIONS ..............................................................
PERCEPTIONe VOLTAGE CHECKS ....................................................................
PEAK LOAD BATTERY .........................................................................................
PERCEPTIONe POWER SUPPLY CONTROLS AND INDICATORS ....................

-iv-

PAGE
2-1
2-1
2-2
2-2
2-2
2-3
2-4
2-5
3-1
3-1
3-2
4-1
4-1
4-2
4-3
4-3

INSTALLATION INSTRUCTIONS
SECTION 200-255-200
FEBRUARY 1992
FIGURE
4-6
4-7
4-8
4-9
4-10
4-11
4-12
4-13
4-14
4-15
4-16
4-17
4-18
4-19
4-20
4-21
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4-39
4-40
4-41
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4-43
4-44
4-45
4-46
4-47
4-48
4-49
4-50

SUBJECT
PERCEPTIONe EXPANSION CABINET INSTALLATION ......................................
PERCEPTIONex BASIC CABINET REAR COVER ................................................
PERCEPTIONex CABLE CONNECTIONS ............................................................
PERCEPTIONex VOLTAGE CHECKS ..................................................................
PERCEPTIONex POWER SUPPLY CONTROLS AND INDICATORS ...................
PERCEPTIONex EXPANSION CABINET INSTALLATION ....................................
NFDU STRAPPING ................................................................................................
LCCU STRAPPING ................................................................................................
NTWU STRAPPING ...............................................................................................
NPRU STRAPPING................................................................................................
NRCU MOUNTING.................................................................................................
NDKU SWITCH OPTIONS .....................................................................................
NEMU STRAPPING ...............................................................................................
NCOU STRAPPING ...............................................................................................
NLSU STRAPPING ................................................................................................
NDTU STRAPPING ................................................................................................
NMDU STRAPPING ...............................................................................................
ELECTRONIC TELEPHONE CONNECTION ........................................................
REMOVAL OF ELECTRONIC TELEPHONE BASE ...............................................
REMOVAL OF HANDSET HANGER .....................................................................
INSTALLATION OF MOUNTING BASE FOR WALL-MOUNT INSTALLATION .....
HVSI/HVSU INSTALLATION .................................................................................
ELECTRONIC TELEPHONE PCB CONNECTIONS ..............................................
OFF-HOOK CALL ANNOUNCE CONNECTION (NOCU) .......................................
LOCATION OF CARBON STRAPS .......................................................................
REMOVAL OF HHEU MODULAR CONNECTOR ACCESS TAB ...........................
INSTALLATION OF HHEU UPGRADE OPTION ....................................................
ATTENDANT CONSOLE #0 CONNECTION .........................................................
ATTENDANT CONSOLE #1 CONNECTION .........................................................
DSS CONSOLE CONNECTION FOR PERCEPTIONe "C" SLOT ..........................
DSS CONSOLE CONNECTION FOR PERCEPTIONex "U" SLOTS AND
PERCEPTIONe "L" SLOTS ....................................................................................
DIGITAL DATA INTERFACE UNIT CONNECTION (DDIU-MA and DDIU-MAT) ...
INSTALLING DDIU-MAT ........................................................................................
DDIU-MAT DIP SWITCHES ...................................................................................
DDIU-MA DIUA PCB ..............................................................................................
DIUB PCB...............................................................................................................
DIGITAL TELEPHONE CONNECTION .................................................................
REMOVAL OF DIGITAL TELEPHONE BASE ........................................................
REMOVAL OF HANDSET HANGER .....................................................................
INSTALLATION OF MOUNTING BASE FOR WALL-MOUNT INSTALLATION .....
DVSU INSTALLATION ...........................................................................................
TELEPHONE PCB CONNECTIONS AND STRAPS ...............................................
HHEU INSTALLATION FOR DIGITAL TELEPHONE .............................................
DIGITAL DSS CONSOLE CONNECTION FOR PERCEPTIONe “C” SLOT ...........
DIGITAL DSS CONSOLE CONNECTION FOR PERCEPTIONex “U” SLOTS
AND PERCEPTIONe “L” SLOTS ...........................................................................

-v-

PAGE
4-3
4-5
4-5
4-6
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4-8
4-10
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4-38

INSTALLATION INSTRUCTIONS
SECTION 200-255-200
FEBRUARY 1992
FIGURE
4-51
4-52
4-53
4-54
4-55
4-56
4-57
4-58
4-59
4-60
4-61
4-62
4-63
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4-70
4-71
4-72
4-73
4-74
4-75
4-76
5-1
5-2
5-3

SUBJECT
PERCEPTION DATA INSTALLATION EXAMPLE BLOCK DIAGRAM ...................
PDIU-DI/PDIU-DS MODULAR CABLE/RJ-45 ADAPTER CONNECTIONS ...........
PDIU-DI/PDIU-DS MODULAR CORDS AND RJ-45/RS-232 ADAPTER PIN
CONNECTIONS .....................................................................................................
PDIU-DS JUMPER PLUG OPTIONS/RS-232 CONNECTOR INFORMATION ......
PDIU-DI/PDIU-DS SW1 DIP SWITCH INFORMATION ..........................................
PDIU-DI PCB/DIGITAL TELEPHONE INSTALLATION ..........................................
PDIU-DS TO TOSHIBA PRINTER, RS-232 CONNECTOR/CABLE
CONNECTIONS .....................................................................................................
PDIU-DI TO IBM XT-TYPE COMPUTER, RS-232 CONNECTOR/CABLE
CONNECTIONS .....................................................................................................
PDIU-DI TO IBM AT-TYPE COMPUTER, RS-232 CONNECTOR/CABLE
CONNECTIONS .....................................................................................................
PDIU-DS TO HAYES-TYPE SMART MODEM, RS-232 CONNECTOR/CABLE
CONNECTIONS .....................................................................................................
PDIU-DS DISASSEMBLY/ASSEMBLY DIAGRAM .................................................
PC TO PC TEST CALL USING AT COMMANDS ...................................................
PC TO PRINTER TEST CALL USING MANUAL DIALING .....................................
INTERNAL PC TO EXTERNAL PC TEST CALL USING AT COMMANDS ............
EXTERNAL PC TO INTERNAL PC TEST CALL USING AT COMMANDS ............
STANDARD TELEPHONE CONNECTION ............................................................
MODEM POOLING CONNECTION (DDIU-MA ONLY) ..........................................
RESERVE POWER INSTALLATION .....................................................................
PAGING WITH MUSIC OVER EXTERNAL SPEAKER FROM SAME AMPLIFIER
PAGING WITH ONE AMPLIFIER ..........................................................................
PAGING WITH MULTIPLE AMPLIFIERS ..............................................................
LCCU SWITCHES ..................................................................................................
EXAMPLE: SMDR CALL RECORD .......................................................................
EXAMPLE: AUDIT PRINTOUT (LODGING/HEALTH CARE) .................................
INSERTING DISK (PERCEPTIONex ONLY) .........................................................
INSERTING DISK (PERCEPTIONe ONLY) ...........................................................
CONNECTOR LOCKING BAR ...............................................................................
MAIN DISTRIBUTION FRAME LAYOUT ...............................................................
SECONDARY PROTECTOR DIAGRAM ...............................................................

-vi-

PAGE
4-40
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5-1
5-2
5-3

INSTALLATION INSTRUCTIONS
SECTION 200-255-201
FEBRUARY 1992
CHAPTER 1

DDIU-MA—Digital Data Interface Unit (Stand-alone)

INTRODUCTION

DDIU-MAT—Digital Data Interface Unit (Electronic
Telephone)

1. PURPOSE

DDSS—Digital Direct Station Selection Console

1.00 This section describes the installation procedures necessary to ensure proper operation of the
PERCEPTIONe&ex system.

DKT—Digital Telephone
DPFT—Power Failure/Emergency Transfer Unit

2. ORGANIZATION

DSS—Direct Station Selection Console (Electronic
Telephone)

2.00 The organization of this manual is as follows:

DVSU—PCB for Off-hook Call Announce (installed
inside the digital telephone)

1. INTRODUCTION
2. SYSTEM DESCRIPTION

EKT—Electronic Telephone

3. INSTALLATION SITE REQUIREMENTS

FDD0—Floppy Disk Drive 0

4. SYSTEM INSTALLATION

FDD1—Floppy Disk Drive 1

5. MDF ARRANGEMENTS

GND—Ground

3. REFERENCE DOCUMENTATION

HHEU—Optional Headset Module

3.00 The PERCEPTIONe&ex system is supported
by a complete set of documentation. A list of the
reference documentation associated with the
PERCEPTIONe&ex system is provided below:
Document
Fault Finding
General Description
Operating Procedures
Programming
System Record

HVSI—PCB for Off-hook Call Announce (installed
inside the electronic telephone)
HVSU—PCB for Off-hook Call Announce (installed
inside the electronic telephone)

Section Number
200-255-500

LCCU—Central Control Unit

200-255-400
200-255-300

LCD—Liquid Crystal Display
LCEC-M—PERCEPTIONex Basic Cabinet

4. SYSTEM MNEMONICS

LCEC-S—PERCEPTIONex Expansion Cabinet

4.00 The system is provided with a complete set of
mnemonics that relate directly to its operation and
features. The following alphabetical list describes
the mnemonics used in this manual.

LPSA-M—PERCEPTIONex Main Power Supply
MDF—Main Distribution Frame
NCEC-M—PERCEPTIONe Basic Cabinet

DATT—Attendant Console

NCEC-S—PERCEPTIONe Expansion Cabinet

DDIU—Digital Data Interface Unit PCB (Electronic
Telephone)

NCOU—Central Office Trunk Unit

1-1

INSTALLATION INSTRUCTIONS
SECTION 200-255-201
FEBRUARY 1992
NDCU—Data Control Unit

TTY—Teletypewriter

NDKU—Digital Telephone, Digital DSS, PDIU-DI,
PDIU-DS Unit

UNA—Universal Night Answer
5. INSPECTION, PACKING and STORAGE

NDSU—DSS Console Controller Unit (Electronic
Telephone)

5.00 Inspection
5.01 When the system is received, examine all
packages and make careful note of any visible
damage. If any damage is found, bring it to the
attention of the delivery carrier and make the proper
claims.

NDTU—Digital Trunk Unit
NEKU—Electronic Telephone Unit
NEMU—E & M TIE Trunk Unit

5.02 Check the system against the purchase order
and packing slip. If it is determined that equipment
is missing, contact your supplier immediately.

NFDU—Floppy Disk Drive Unit
NLSU—DID Trunk Interface Unit

5.03 After unpacking (and before installing), inspect all equipment for damage. If any is detected,
contact your supplier immediately.

NMDU—Modem Pooling Unit
NOCU—Off-hook Call Announce Interface Unit

CAUTION!
When handling (installing, removing, examining, etc.) printed circuit boards (PCBs),
do not touch the back (soldered) side or
edge connector. Always hold the PCB by
its edge whenever handling it.

NPRU—Paging and Music-on-Hold Unit
NPSA-M—PERCEPTIONe Main Power Supply
NPSA-S—PERCEPTIONe&ex Expansion Power
Supply
NRCU—Receiver Unit

5.10 Packing and Storage

NSTU—Standard Telephone Unit
NTWU—Time Switch Unit

5.11 When storing or shipping PCBs, be sure they
are packed in their original antistatic bags for protection against static discharge.

PCB—Printed Circuit Board

5.20 Required Tools
5.21 Installation of the PERCEPTIONe&ex systems requires standard telephony tools. A 13mm
socket wrench and extension is recommended for
ease of expansion cabinet installation.

PDIU-DI—Integrated Data Interface Unit (Digital
Telephone)
PDIU-DS—Stand-alone Data Interface Unit (Keyboard Dial)
PFT—Power Fail Transfer
SMDR—Station Message Detail Recording

1-2

INSTALLATION INSTRUCTIONS
SECTION 200-255-202
FEBRUARY 1992
CHAPTER 2
SYSTEM DESCRIPTION
1. PERCEPTIONe
1.00 Basic Equipment Cabinet
1.01 The basic equipment cabinet (NCEC-M) consists of a single, free-standing cabinet mounted on
casters for easy movement. Once system installation has been completed and the cabinet has been
positioned, the casters can be locked to prevent
movement. The interior of the cabinet houses two
shelves for printed circuit card installation. A separate area is provided for installation of the power
supply and peak load battery. MDF connections
are facilitated by amphenol connectors located on
the rear of the cabinet (Figure 2-1).

FIGURE 2-2—PERCEPTIONe EXPANSION CABINET
supply, this chassis contains the system ring generator and a charger/inverter for Reserve Power.
Located on the front of the chassis are a circuit
breaker and LED indicator for each power supply
output, and an AC power indicator, and the system
power switch. The battery switch is also on the front
of the NPSA-M.
2. PERCEPTIONex
FIGURE 2-1—PERCEPTIONe BASIC CABINET

2.00 Basic Equipment Cabinet

1.10 Expansion Cabinet
1.11 The expansion cabinet (NCEC-S) is a single
cabinet that mounts on top of the basic cabinet and
is secured in place with four bolts. The cabinet
houses two shelves for printed circuit card installation. MDF connections are facilitated by amphenol
connectors located on the rear of the cabinet (Figure 2-2).

2.01 The basic equipment cabinet (LCEC-M) is a
single free-standing cabinet mounted on casters
for easy movement. The cabinet contains three
shelves for printed circuit card installation. A separate area is provided for power supply and peak
load battery installation. MDF connections are facilitated by amphenol connectors located on the
rear of the cabinet (Figure 2-3).

1.20 Power Supply

2.10 Expansion Cabinet

1.21 The Main Power Supply (NPSA-M) consists
of a single metal chassis. In addition to the power

2.11 The expansion cabinet (LCEC-S) is a single
cabinet that houses a single printed circuit card

2-1

INSTALLATION INSTRUCTIONS
SECTION 200-255-202
FEBRUARY 1992

FIGURE 2-3—PERCEPTIONex BASIC CABINET

FIGURE 2-4—PERCEPTIONex
WITH EXPANSION CABINETS

shelf. MDF connections are facilitated by amphenol connectors located on the rear of the cabinet
(Figure 2-4). Up to two expansion cabinets may be
added to the PERCEPTIONex basic equipment
cabinet.
2.20 Power Supply
2.21 The Main Power Supply (LPSA-M) consists
of a single metal chassis which contains the system
ring generator and charger/inverter for the Reserve
Power. A circuit breaker switch, LED indicators, AC
power indicator and system power switch are located on the front of the chassis. For ease in
installation a handle is located at the top front of the
power supply (Figure 2-5).
3. PEAK LOAD BATTERY
3.00 The peak load battery will maintain call processing for a maximum of two minutes in the event
the PERCEPTIONe or PERCEPTIONex experiences a power failure. Additionally, when the system is under heavy usage the peak load battery will

FIGURE 2-5—PERCEPTIONex
MAIN POWER SUPPLY

2-2

INSTALLATION INSTRUCTIONS
SECTION 200-255-202
FEBRUARY 1992
5. POWER FAILURE/EMERGENCY TRANSFER

avoid power degradation by supplementing the -24
volts, maintaining a constant power level.

5.00 The function of the Power Failure/Emergency
Transfer Unit (DPFT) is to automatically connect
selected trunks to selected standard telephones in
the event of system failure while permitting normal
operation when the system is in service (maximum
of 1 per cabinet).

4. EXTENDED RESERVE POWER
4.00 The power supply is equipped, as a standard
feature, with an internal battery charger/inverter.
Full reserve power can be provided for any system
by connecting an appropriate, customer-supplied
24-volt battery pack. During normal operation, the
power supply charger/inverter will maintain the
proper charge in the battery pack. In the event of an
AC power failure, switchover to battery power will
be automatic. There will be no loss of system
operation as a result of power switchover. When
AC power is restored, switchback to the power
supply will be automatic.

5.01 The DPFT is a self-contained module that
mounts externally to the basic cabinet, typically on
the MDF. Connections to the trunks, stations and
basic cabinet are made via two 50-pin amphenoltype connectors (J1 and J2) on the DPFT (see
functional diagram in Figure 2-6).
5.02 The module consists of eight relays that are
normally operated, connecting the telephones to
NSTU circuits and the trunks to NCOU circuits. If a
power failure (or other emergency) occurs, the
relays release, connecting the telephones directly
to the trunks. Calls can then be placed from the
telephones over the CO trunks, bypassing the
system (which is out of service).

4.01 Battery selection and size will depend on
system size and desired reserve operating time.
The maximum power consumption of the basic
cabinet is 11.5 amps at -24 VDC. For both a basic
and expansion cabinet configuration, the maximum will be 19 amps at -24 VDC. The selected
batteries must be compatible with the system’s
charger float voltage of 27.3 VDC.

5.03 Power Fail Transfer (PFT) telephones con-

FIGURE 2-6—DPFT FUNCTIONAL DIAGRAM

2-3

INSTALLATION INSTRUCTIONS
SECTION 200-255-202
FEBRUARY 1992

5.04 A transfer can be caused by a loss of power
or triggered manually by either of two buttons, one
of which is located on the underside of the attendant console and the other on the front of the NPRU
PCB. A transfer that is caused by a power failure
will be reset automatically when power is restored;
a manual transfer must be reset manually.

NOT USED

NPRU

P01

C01 L15 L16

NDSU

nected to ground-start trunks must have ground
taps (tap buttons) in order to make outgoing calls
during power fail transfer conditions.

L17 L18

STATION,
DATA,
DSS,
OR OCA
CARDS
ONLY

NPSA2-S
-24V

NOT USED

T15 T14 T13 T12 T11 T10 T09
L19 L20 L21 L22 L23 L24 L25

5.05 When the DPFT is reset after a transfer,
existing PFT conversations will be protected. Individual circuits will be restored only when they
become idle.

T08
L26

-48V
RINGER

STATION, DATA,
TRUNK, DSS, OR
OCA CARDS ONLY

6. PRINTED CIRCUIT BOARD DESCRIPTION
FDD0 CCU TWU P00 C00 L00

L01 L02

L03

NPSA2-M

ON BATTERY
BACK-UP
OFF

6.00 Sixteen different types of PCBs are available
for use in both PERCEPTION systems (Figures 27 & 2-8). The universal port architecture enables
multiple installation of trunk cards. The
PERCEPTIONe can support a maximum of 16
trunk cards; 8 in the basic cabinet, and 8 in the
expansion cabinet. The PERCEPTIONex can
support a maximum of 32 trunk cards; 24 in the
basic cabinet, and 8 in each expansion cabinet.

NDSU

NPRU

NTWU

LCCU

NFDU

-24V

STATION,
DATA,
DSS,
OR OCA
CARDS
ONLY

T07 T06 T05 T04 T03 T02 T01
FDD1 L04 L05 L06 L07 L08 L09 L10

-48V
RINGER

T00
L11

AC POWER

+5V

POWER
ON
-5V

NFDU

NFDU (Floppy Disk Drive Unit)—One or two per
system: This card houses a 3.5 inch, 1.2 Mbyte
disk drive. One disk contains system program
and customer data. The second disk stores the
Maintenance and Administration programs. (Two
NFDUs are required in D.02 and later version
software using Remote Maintenance.)

OFF

STATION, DATA,
TRUNK, DSS, OR
OCA CARDS ONLY
PEAK LOAD
BATTERY

FIGURE 2-7—PERCEPTIONe PCB INSTALLATION

LCCU (Central Control Unit)—One per system:
The LCCU card contains the circuitry which,
under the direction of the system program, provides centralized control for the entire system.
Additionally, the LCCU performs data transmission and receiving functions between the central
control and all peripheral equipment, including:
• Station PCBs
• Trunk PCBs
• TTY interface
• SMDR interface
• Lodging/Health Care audit interface

• Modem interface
This circuitry consists of a 16-bit 80C88 main
processor, an 8-bit Z-80 secondary processor,
and 1Mbyte of memory.
NTWU (Time Switch Unit)—One per system: This
card performs the time slot interchange function
for call processing and the conference features,
provides the digital speech paths with digital
padding, timing and control for time slot switching and generates system tones.

2-4

INSTALLATION INSTRUCTIONS
SECTION 200-255-202
FEBRUARY 1992

• Digitized voice message for Automatic Wakeup (optional)
T12 T13 T14 T15 U31 U30 U29 U28 U27 U26 U25 U24

TRUNK
CARDS

STATION,
DATA, DSS,
TRUNK, OR
OCA CARDS

NRCU (Receiver Unit)—Two per NPRU (4 per
system maximum): This card provides DTMF
receivers, which are required for receiving tone
dialing from standard telephone ports (including
voice mail ports) and some incoming trunk (DID,
TIE and CCSA) types. It also provides the capability for remote access to service. It mounts
piggy-back on the NPRU PCB, where there is
available space for two NRCUs. Each NRCU
provides four DTMF receiver circuits, with a
system maximum of 16.

-24V

-48V
RINGER

T08 T09 T10 T11 U23 U22 U21 U20 U19 U18 U17 U16

TRUNK
CARDS

STATION,
DATA, DSS,
TRUNK, OR
OCA CARDS

-24V

NOTE:
When using the Call Forward No Answer to
Trunk feature, an NRCU MUST be installed in
the system.

-48V
RINGER

NFDU

FD00

CCU2 NTWU P01 P00

NFDU
LCCU
NTWU
NPRU
NPRU

FD01

NOT
USED

-24V

T00 T01 T02 T03 U07 U06 U05 U04 U03 U02 U01 U00

TRUNK
CARDS

STATION,
DATA, DSS,
TRUNK, OR
OCA CARDS

NEKU (Electronic Telephone Unit)—One per
eight electronic telephones: Interfaces electronic
telephone to the system. It also serves as an
attendant console interface. Each attendant console requires one electronic telephone circuit.

ON
BAT. BACK UP
OFF

PERCEPTIONe
ATT #0-PCB position L00 circuit #1
ATT #1-PCB position L15 circuit #1

-48V
RINGER

A maximum of 12 NEKU/NDKU PCBs may be
installed in each cabinet (24 NEKU/NDKU PCBs
maximum per system).

T04 T05 T06 T07 U15 U14 U13 U12 U11 U10 U09 U08
+5V

TRUNK
CARDS

STATION,
DATA, DSS,
TRUNK, OR
OCA CARDS

AC POWER

POWER
ON

-5V

PERCEPTIONex
ATT #0-PCB position U00 circuit #1
ATT #1-PCB position U01 circuit #1

OFF

BATTERY

A maximum of 16 NEKU/NDKU PCBs can be
installed in the PERCEPTIONex basic cabinet,
and eight in each expansion cabinet.

FIGURE 2-8—PERCEPTIONex
ex PCB INSTALLATION

NDKU (Digital Telephone Unit)—A 2B+D architecture is used to interface up to 8 or 16 circuits
for the Digital Telephone and Integrated Data
Interface Unit (PDIU-DI), Stand-alone Data Interface Unit (PDIU-DS), or Digital Direct Station
Selection Console. Digital telephones and digital
DSS consoles cannot be interfaced to the same
NDKU PCB. Four configuration options are
switch-selectable as follows:

NPRU (Paging and Music-on-hold Unit)—Houses
program load and initialization control switches
and performs several miscellaneous functions
(up to two per system):
• Paging interface and control
• Music-on-hold interface
• UNA control
• Interface for the NRCU
• Attendant Console Functions
• Power Failure/Emergency transfer control

1) Option 1: Eight digital telephones only.
2) Option 2: Eight digital telephones with

2-5

INSTALLATION INSTRUCTIONS
SECTION 200-255-202
FEBRUARY 1992
PERCEPTION e and four per shelf for
PERCEPTIONex.

Integrated Data Interface Unit (PDIU-DI)
or Off-hook Call Announce. This position
also supports Stand-alone Data Interface Units (PDIU-DS).

NCOU (Central Office Trunk Unit)—One per four
CO trunks: Provides the signaling supervisory
functions on loop- and ground-start trunks. Interfaces four CO trunks to the system. These trunks
can be incoming, outgoing, or both way CO
trunks; WATS trunks, or Foreign Exchange (FX)
trunks.

3) Option 3: Four digital DSS consoles. In
PERCEPTIONe C00 and C01 may be
used for this option only.
4) Option 4: Eight digital DSS consoles.

NOTE:
When using Option 2 or 4, the next highest
number adjacent card slot cannot be used.
For example: If an NDKU is installed in L01 or
U01, the card slot L02 or U02 respectively,
must be left vacant.

NEMU (E & M TIE Trunk Unit)—One per four E &
M TIE trunks: Each TIE trunk can be individually
strapped for Type I or II operation with either 2wire or 4-wire connection.
NLSU (DID Trunk Interface Unit)—One per four
DID trunks: Each NLSU connects four Direct
Inward Dialing (DID) trunks to the system.

NSTU (Standard Telephone Unit)—Interfaces
eight standard telephones (DTMF or rotary dial)
to the system.

NDTU (T1 Interface)—Maximum of two per system (one in the main cabinet, one in the expansion cabinet): Each NDTU provides a maximum
of 24 trunk lines. The Digital Trunk printed circuit
card enables the PERCEPTIONe&ex systems
to use DS1 signaling to connect directly to either
T1 span lines which connect to the telco (through
a Channel Service Unit), or to a private network.

NDSU (DSS Console Controller Unit)—Interfaces
four DSS consoles to the system. The NDSU is
installed in the C00 or C01, or any line slot for
PERCEPTIONe; or in any universal slot for
PERCEPTIONex. A maximum of two NDSU
PCBs are allowed per system, and both can be
installed in the same cabinet.
NDCU (Data Control Unit)—Interfaces eight Digital Data Interface Units (DDIUs) to the system.
The NDCU controls data transmission between
the DDIU and the cabinet. A maximum of four
NDCU PCBs may be installed in each
PERCEPTIONe cabinet. In the PERCEPTIONex,
four PCBs per shelf can be installed.

NOCU (Off-hook Call Announce Interface Unit)—
One per eight electronic telephones. Each NOCU
provides eight Off-hook Call Announce circuits
for up to eight electronic telephones. Each NOCU
takes a station PCB location in the cabinet.
HVSU2 (Off-hook Call Announce PCBs)—Install
inside the electronic telephone. The HVSI PCB
is installed piggy-back on the HVSU. One unit
per electronic telephone is required to receive
off-hook call annnounce.

NMDU (Modem Pooling Unit)—Interfaces up to
four modems and their associated DDIU-MAs.
Any of the four DDIU circuits not required by a
modem can be used with a standard DDIU (-MA
or -MAT). A maximum of four NMDU PCBs may
be installed in each PERCEPTIONe cabinet. In
the PERCEPTIONex, four PCBs can be installed
per shelf.

DVSU (Digital Off-hook Call Announce PCB)—
Installs inside the digital telephone. One unit per
digital telephone is required to receive off-hook
call announce.

NOTE:
The system maximum of NDCU or NMDU
PCBs consists of any combination of the two
PCBs totaling four per cabinet for

7. SYSTEM INDICATORS AND CONTROLS

2-6

INSTALLATION INSTRUCTIONS
SECTION 200-255-202
FEBRUARY 1992
7.00 Several system indicators and controls are
located on the various PCBs and assemblies. The
locations and functions are:

•

NFDU
• Disk Drive LED—Will light to indicate when
the disk is being accessed.
• PUSH Button—Used to eject the diskette
from the drive.

•
•
•

LCCU
• MAJ LED—Lights when a MAJOR alarm
exists in the system.
• MDR LED—Lights when the DTR signal from
the SMDR device is not present. An MDR
alarm on the attendant console lights simultaneously if enabled in programming.
• AUX LED—Lights when the DTR signal from
the MIS system is not present.
• TTY switch—Slide switch used to select 300
or 1,200 bps speed for TTY port. This port is
used for either programming and maintenance and/or the Lodging/Health Care Audit.
• MDR switch—Slide switch used to select 300
or 1,200 bps speed for the SMDR port. This
port is used for SMDR and/or the Lodging/
Health Care Audit.
• AUX switch—This switch is used with MIS
system. Must be set at 1200 bps.

All existing calls will be dropped when this
switch is pushed.
PFT switch—A locking switch used to manually activate a transfer with the DPFT unit. A
transfer activated by this switch can only be
reset by this switch.
MDM LED—Not currently used.
PFT LED—LED is ON whenever a power fail
transfer condition has been manually initiated.
NRCU FALT LEDs 1, 2, 3 & 4—Used to
indicate software-detected faults or a disabled state caused by an input command
from the maintenance terminal (TPER Program). Each LED indicates two of the four
circuits on each of the two NRCUs that can
mount on the NPRU.
FALT #1 = Circuits 1 & 2, NRCU2 1
FALT #2 = Circuits 3 & 4, NRCU2 1
FALT #3 = Circuits 1 & 2, NRCU2 2
FALT #4 = Circuits 3 & 4, NRCU2 2

NCOU/NEMU/NLSU
• FALT LEDs 1 & 2—Indicate software-detected faults or a disabled state caused by an
input command from the maintenance terminal (TPER Program) or while ports are programmed. Each LED indicates two of the
four circuits on the NCOU, NEMU or NLSU:
FALT #1 = Circuits 1 & 2
FALT #2 = Circuits 3 & 4
• BSY LEDs 1 ~ 4—Indicate the busy/idle
status of each of the four circuits on the
NCOU, NEMU or NLSU. LED is ON when
circuit is busy.

NTWU
• CLOCK LED—Flashes continuously when
the system is functioning as usual.
NPRU
• FALT LED—Indicates software-detected
faults concerning MOH or Paging circuits.
• BSY LED 1 & 2
#1 lights when any page is in progress.
#2 indicates when MOH is in use (a call is on
hold or camp-on).
• MOH volume control—Adjust, Music-on-hold
volume level.
• LOAD switch—A momentary switch used in
an emergency condition to reload system
program and data from disk. All existing calls
will be dropped when this switch is pushed.
• INT switch—A momentary switch used in
emergency conditions to reset system logic.

NDTU
• FALT LED—Indicates software-detected
faults or a disabled state caused by an input
command from the maintenance terminal
(TPER Program) or while ports are programmed. LED indicates fault occuring in
more than one channel.
• BSY LED—Indicates the busy/idle status of
the 24 channels on the NDTU. LED is ON
when more than one channel is busy.
• FALM LED—Indicates NDTU has not
achieved Synchronization.
• MFALM LED—Indicates NDTU has not

2-7

INSTALLATION INSTRUCTIONS
SECTION 200-255-202
FEBRUARY 1992

•
•
•

•

achieved Frame Synchronization.
YALM LED—Indicates a Yellow Alarm is
detected by the NDTU.
BALM LED—Indicates a Blue Alarm is detected by the NDTU.
Signaling Type Selection Switches S4 ~
S11—Six-element DIP switches used to select one of four available signaling modes, on
a per channel basis, for each of the 24 NDTU
channels. Available signaling modes are:
CO (Loop Start) mode
CO (Ground Start) mode
DID (2-wire signaling)
TIE Line mode (4-wire E&M)

•
•

NEKU/NSTU/NOCU/NDKU
• FALT LEDs 1 & 2—Indicate software-detected faults or a disabled state caused by an
input command from the maintenance terminal (TPER Program) or while ports are programmed. Each LED indicates four of the
eight circuits on the NEKU, NSTU, NOCU, or
NDKU:
FALT #1 = Circuits 1 ~ 4
FALT #2 = Circuits 5 ~ 8

FALT LEDs 1 & 2—Indicate software-detected faults or a disabled state caused by an
input command from the maintenance terminal (TPER Program) and while ports are
programmed:
FALT #1 = DIU Circuits 1 ~ 4
FALT #2 = Modem Circuits 1 ~ 4
NOT READY LEDs DIU 1 ~ 4—Indicate the
DDIU’s (-MA or -MAT) power switch is not in
the ON position or tip and ring line polarity is
reversed.
BSY LEDs (Modem) 1 ~ 4—Indicate the
busy/idle status of each of the four modem
circuits (the LED is ON when the circuit is
busy).

NPSA-M/LPSA-M
• LEDs indicate the presence of: Ringer and
-48, -24, -12, +12, -5, +5 voltages.
• AC Power LED—Indicates the presence of
AC power to the NPSA-M.
NPSA-S
• LEDs indicate the presence of: -48 and -24
voltages.

NDSU
• FALT LEDs 1 & 2—Indicate software-detected faults or a disabled state caused by an
input command from the maintenance terminal (TPER Program) or while ports are programmed. Each LED represents two of the
four ports on the NDSU:
FALT #1 = Circuits 1 & 2
FALT #2 = Circuits 3 & 4

8. PERIPHERAL EQUIPMENT
8.00 Electronic and Digital Telephone
8.01 Four different electronic telephones and two
different digital telephones may be used in the
system.
8.02 All electronic telephones share the same
dimensions:
Height: 3.7 in. (94mm)
Width: 7.1 in. (180mm)
Depth: 9.5 in. (241mm)

NDCU
• FALT LEDs 1 & 2—Indicate software-detected faults or a disabled state caused by an
input command from the maintenance terminal (TPER Program) and while ports are
programmed. Each LED indicates four of the
eight circuits on the NDCU:
FALT #1 = Circuits 1 ~ 4
FALT #2 = Circuits 5 ~ 8
• NOT READY LEDs DIU 1 ~ 4 and DIU 5 ~ 8—
Indicate the DDIU’s (-MA or -MAT) power
switch is not in the ON position or tip and ring
line polarity is reversed.

8.03 All digital telephones share the same dimensions:
Height: 3.6 in. (92mm)
Width: 7.3 in. (184mm)
Depth: 9.0 in. (229mm)
8.04 Both electronic and digital telephones feature
modular handset cords. Electronic telephones are
connected to the system via 4-conductor modular
line cords. Digital telephones are connected to the

NMDU

2-8

INSTALLATION INSTRUCTIONS
SECTION 200-255-202
FEBRUARY 1992
system via 2-conductor modular line cords. In addition, all models may be used at any or all stations.

the DDIU-MAT and DDIU-MA are equipped with a
power supply that connects to the DDIUs via a 6'
cord, and plugs into a standard 117 VAC wall outlet.

8.10 Headset Upgrade (HHEU)

8.60 Paging Equipment

8.11 Each electronic/digital telephone may also
be upgraded to provide a modular headset jack
by installing a headset upgrade assembly. The
assembly consists of a small PCB (HHEU) which
installs on the main PCB, inside the electronic or
digital telephone, with a plug-in connector. Most
standard headsets are compatible with the HHEU
jack.

8.61 A customer-supplied paging amplifier can
work in conjunction with the system’s paging interface and speaker zone switching to provide a
system paging capability.
8.70 Music-on-Hold
8.71 A standard interface enables a customerprovided music source to be connected to the
system. This music is connected to all calls placed
in the hold, camp-on or call waiting condition by a
station or the attendant. The same music source
can also be used by the Automatic Wake-up feature for wake-up calls.

8.20 Attendant Console
8.21 The Attendant Console is available with faceplates for the Business and Lodging/Health Care
applications. The console consists of a plastic
housing with handset/headset modular jacks. Two
horizontal rows of non-locking buttons, LEDs and
a 12-button dialpad enable call processing.

8.80 Universal Night Answer
8.81 Incoming calls, when the system is in night
operation, can be programmed to go either to a
night answer station or to a Universal Night Answer
device such as a bell or loud ringer. Any station user
can pick up a UNA call by either pressing a UNA
button on the telephone or by dialing an access
code. Up to two UNA zones can be programmed
per system, when the system is in tenant service.

8.30 DSS Console
8.31 As an option both electronic and digital Direct
Station Selection (DSS) consoles can be used with
systems that do not require attendant consoles, or
require distributed call-handling positions. Two DSS
consoles per electronic/digital telephone, up to a
system maximum of eight DSS consoles, can be
installed.

8.90 Station Message Detail Recording

8.40 Standard Telephone

8.91 PERCEPTIONe&ex automatically record call
data (such as call duration, digits dialed, originating
station and account codes) of calls made to and
from the system. Lodging/Health Care feature activation (Automatic Wake-up, Message Registration, etc.) is also recorded. This data can then
output to a printer, recording device or call accounting system. The Lodging/Health Care feature audit
can be combined with SMDR or can be output
separately. SMDR helps the user reduce telephone costs and monitor employee telephone
usage.

8.41 Standard telephones can be mixed with electronic telephones as required by the user’s application. Standard telephones can access all telephone
features using dial code access.
8.50 DDIU/PDIU
8.51 There are four types of Digital Data Interface
Units (DDIUs/PDIUs), DDIU-MAT, DDIU-MA, PDIUDI, and PDIU-DS. The DDIU-MAT is a built-in unit
that attaches directly to the bottom of a 10- or
20-button electronic telephone (replacing the base).
The PDIU-DI is a built-in unit that attaches directly
to the bottom of both digital telephones (replacing
the base). The DDIU-MA and PDIU-DS are standalone units. Each unit is equipped with a female
RS-232C connector and operation switches. Both

2-9

INSTALLATION INSTRUCTIONS
SECTION 200-255-203
FEBRUARY 1992
CHAPTER 3
INSTALLATION SITE REQUIREMENTS
1. COMMERCIAL POWER
1.00 The system requires a power source of 100 ~
120 VAC, 50/60 Hz. The AC outlet must be dedicated to system use, grounded and fused. To avoid
accidental power turn-off, it is recommended that
an ON/OFF wall switch not be used on this dedicated AC circuit.
1.01 If reserve power is to be installed, the battery
pack requires a well-ventilated location adjacent to
the equipment cabinet.

FIGURE 3-2—PERCEPTIONex
MINIMUM FLOOR SPACE

2. ENVIRONMENTAL REQUIREMENTS
ered when selecting a location for the equipment
cabinet:
The location MUST BE:
• Dry and clean.
• Well ventilated.
• Well lit.
• Easily accessible.

2.00 Humidity at the equipment cabinet should be
within 20 ~ 80% (non-condensing), and the temperature should be relatively constant within 32 ~
104°F (0 ~ 40°C). Exposure to dust and airborne
chemicals should be avoided.
3. EQUIPMENT ROOM RECOMMENDATIONS

The location MUST NOT BE:
• Subject to extreme heat or cold.
• Subject to corrosive fumes.
• Next to a reproducing or copying machine.

3.00 The minimum floor and maintenance space
required for installation of each of the two equipment cabinets is shown in Figures 3-1 and 3-2.
REAR WALL

4. CABLING CONSIDERATIONS

6" AIR SPACE THREE SIDES

4.00 The equipment cabinet must be located close
to the facility Main Distribution Frame (MDF). Maximum house cable run distances for station and
peripheral equipment must also be considered
when choosing the location of the equipment cabinet. The limit for each type of equipment is:
• Electronic/Digital Telephone - 1,000 cable feet
(305 M), 24 AWG
• Standard Telephone - 500-ohms (including telephone)
• Stand-alone DDIU-MA/PDIU-DS - 3, 280 cable
feet (1,000 M), 24 AWG
• Attendant Console - 1,000 cable feet (305 M),
24 AWG
• Electronic DSS - 500 cable feet, 24 AWG

17 3/4"
12"
TOP VIEW
NCEC202-M UNIT

FRONT WORK SPACE APPROXIMATELY 36"

FIGURE 3-1—PERCEPTIONe
MINIMUM FLOOR SPACE
3.01 The following requirements must be consid-

3-1

INSTALLATION INSTRUCTIONS
SECTION 200-255-203
FEBRUARY 1992
• Digital DSS - 1,000 cable feet (305 M), 24 AWG
GROUND 1;

4.01 Acceptable cable for all telephones is 22 or 24
AWG twisted pair inside telephone station cable
(jacketed but not shielded). Two twisted pairs are
required for the electronic telephone, one pair for a
standard telephone, and one twisted pair for the
digital telephone, even if equipped with a PDIU-DI.
Three twisted pairs are required for an electronic
telephone equipped with a DDIU-MAT. The standalone DDIU-MA/PDIU-DS requires one twisted
pair.

Perception

DEDICATED
AC OUTLET
WITH THIRD
WIRE GROUND

TO GROUND
ROD OR WIRING
SYSTEM GROUND

4.02 A 25-pair cable is required for the attendant
console. The console is equipped with a male 50pin amphenol-type connector.

1.
2.

THIRD WIRE GROUND
TO AC POWER CORD

POWER
SUPPLY

EXT GND

EXTERNAL GROUND SCREW
ON PERCEPTION CABINET

WARNING!
Never install telephone wiring during a
lightning storm.
Never install telephone jacks in wet
locations, unless the jacks are specifically designed for wet locations.
Never touch uninsulated telephone
wires or terminals unless the telephone
line has been disconnected at the interface.
Use caution when installing or modifying telephone lines.

GROUND 2;

PER GENERAL RULES
OF ARTICLE 250 OF
THE NATIONAL
ELECTRICAL CODE, NFPA70

FIGURE 3-3—UL GROUNDING DIAGRAM
insulated grounding conductor is to be installed as part of the circuit that supplies the
system, and it is to be connected to ground at
the service equipment.

5. GROUNDING
3) The other conductor (ground 2) shall comply
with the general rules for grounding contained
in Article 250 of the National Electrical Code,
NFPA 70, but shall not depend on the cord and
plug of the product.

5.00 The following grounding directions are required in order to comply with the Underwriters'
Laboratories’ Standard 1459 2nd edition:
1) Redundant and independent equipment
grounding conductors are to be installed between the product and the wiring system
ground.
2) One of the equipment grounding conductors
(ground 1) shall be an insulated grounding
conductor. Its size shall not be smaller than
the size of the grounded and ungrounded
branch-circuit supply conductors. It shall also
have their equivalent insulation material and
thickness, except that it is green with, or
wilthout, one or more yellow stripes. This

3-2

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
CHAPTER 4
6) Check the 15-amp fuse (F1) located at the top
of the power supply to verify that it is in working
order.

SYSTEM INSTALLATION
1. PERCEPTIONe

7) Remove plastic cover from AC connection
terminal TB1 by removing two screws.

1.00 Power Supply Installation

8) Connect the white and black leads to the AC
terminal (black to L and white to N) and the
green lead (ground) to the GND screw on the
main power supply (Figure 4-2). Replace the
plastic cover and secure with two screws.

1.01 Install the main power supply as follows:
1) Remove the two screws securing the basic
cabinet front cover. Lift the cover off the cabinet.
2) Loosen two screws, remove and retain four
screws securing the basic cabinet rear cover
plate, and remove the rear cover plate (Figure

J515 ~ J509

J508 ~ J501

J701
J702

GND

J402

GROUND STRAP

J7
125V
15A

F1 F2

TB2

TTY
SMDR

J202 J401

AUX

+
BAT. (24V)

J201

FIGURE 4-1—PERCEPTIONe
BASIC CABINET REAR COVER

SURGE
TEST

J15

4-1).
3) Unpack the main power supply and inspect it
carefully for any visible damage. Verify that all
connectors are securely attached.

J14

J13

J12

J11

J10

J703

TB1 L N

J203

AC
GND

EXT
GND

4) Remove and retain the three corner screws
from the back of the main power supply.

POWER
CABLE

5) Slide the main power supply into the basic
cabinet from the front and secure in place with
three screws at the rear.

FIGURE 4-2—PERCEPTIONe
CABLE CONNECTIONS

4-1

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
9) With the main power supply turned OFF, plug
the AC power cord into the AC outlet.
10) Momentarily press each circuit breaker to
verify that it is not tripped.
11) Place the main power supply power switch in
the ON position.

EXPANSION CABINET
J702

J701

WARNING!
Hazardous voltage that may cause death
or injury is exposed at the power supply
AC terminal.

-24V
-24V

G
G
G
G
G

-24V
-24V

12) Verify that all main power supply power indicator LEDs are on (RINGER LED should be
pulsating rapidly). If any of the LEDs are not
on, replace the main power supply.

SIG2
RNG CK
-48V

SIG 1
G

BASIC CABINET
J201

13) Using a multimeter (set to the appropriate
ranges), check the pins on connectors J201,
J202, J203 and J703 for the voltages shown
in Figure 4-3. (The connectors are on the rear
of the power supply chassis.) Measure between the voltage pin and a ground pin. (All
ground leads are tied to a single point, so any
can be used.) Figure 4-3 also shows the
acceptable range for each output voltage. If a
measured voltage falls outside of the acceptable range, replace the main power supply.

BACK UP
AC DOWN
-24V

J202
PS ALM
SIG2
G
RNG CK
G
-48V
G
G
-24V

-24V
-24V

J703
-5V
-5V
+5V
+5V

14) Turn the power supply OFF and then connect
J201, J202 and J203, respectively, as shown
in Figure 4-2.
15) Remove and retain the two screws securing
the peak load battery mounting bracket and
slide the bracket out the front of the basic
cabinet.

SIG 1
G

J203
G
G
G

-5V
-5V
+5V
+5V
+5V

G
G
G
G

FPSA ACCEPTABLE VOLTAGE RANGES
NOMINAL (VDC)

16) Install the peak load battery as shown in
Figure 4-4. Secure the battery to the mounting
bracket with the retaining strap and a single
screw.
WARNING!
Hazardous voltage that may cause death
or injury is exposed at the peak load battery cables. DO NOT touch wires together.

-48
-24
+12
-12
+5
-5

17) Connect the peak load battery cables to TB2
on the rear of the basic power supply (see
Figure 4-2). Ensure that the correct polarity is
observed as follows:
blue to positive (+)
yellow to negative (-)

RANGE (VDC)
-47.52 ~ -48.96
-26.75 ~ -28.12
+11.76 ~ +12.48
-11.76 ~ -12.48
+5.0 ~ +5.4
-5.0 ~ -5.4

FIGURE 4-3—PERCEPTIONe VOLTAGE CHECKS

4-2

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

FIGURE 4-4—PEAK LOAD BATTERY
18) Slide the mounting bracket/battery assembly
in place and secure with two screws.
19) Set the BATTERY BACKUP switch to ON
(Figure 4-5).
1.10 Expansion Cabinet Installation
FIGURE 4-5—PERCEPTIONe
POWER SUPPLY CONTROLS AND INDICATORS

WARNING!
Hazardous voltage that may cause death
or injury is present in the system during
operation. Ensure that AC power to both
cabinets is turned off prior to performing
this procedure.
NOTE:
A 13mm socket wrench and extension is recommended for ease of expansion cabinet
installation.
1) Remove and retain the four screws securing
the basic cabinet top cover and lift the cover
off the cabinet (Figure 4-6).
2) Remove and retain the two screws securing
each of the expansion cabinet side panels.
Pull the side panels off.
3) Place the four casters on the basic cabinet in
the lock position to ensure cabinet stability
during the expansion cabinet installation.
4) On both the basic and expansion cabinets,
remove and retain two screws securing the
cabinet doors. Remove and retain the six
screws securing the rear panel on each cabinet.

FIGURE 4-6—PERCEPTIONe
EXPANSION CABINET INSTALLATION

4-3

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
and J702 on the secondary power supply for
the voltages shown in Figure 4-3. (The connectors are on the rear of the power supply
chassis.) Measure between the voltage pin
and a ground pin. (All ground leads are tied to
a single point, so any can be used.) Figure 43 also shows the acceptable range for each
output voltage. If a measured voltage falls
outside of the acceptable range, replace the
secondary power supply.

5) Place the expansion cabinet on top of the
basic cabinet, ensuring proper alignment of
the four mounting holes. Secure in place with
four metric bolts, flat washers and lockwashers.
6) Reinstall the two side covers on the expansion
cabinet and secure in place using four screws
(two per side).
7) Install the top cover on the expansion cabinet
and secure with four screws.

17) Turn the power supply OFF.

8) Connect the intercabinet ground wire in accordance with Figure 4-2.

18) Plug in connectors J701 and J702.
19) Route cable J703 into the basic cabinet and
plug it into connector J703.

9) Route the expansion cabinet ribbon cable
from J402 in the expansion cabinet through
the opening provided in the cabinet bottom
and connect to the basic cabinet backplane at
J401.

20) Reinstall the rear panels and doors on both
cabinets and secure in place with screws.
2. PERCEPTIONex

10) Remove three screws from the secondary
power supply. From the front of the expansion
cabinet slide the power supply into the rack
and secure in place with the three rear screws.

2.00 Power Supply Installation
2.01 Install the main power supply as follows:
1) Remove the two screws securing the basic
cabinet front cover. Lift the cover off the cabinet.

NOTE:
Prior to routing intercabinet cabling, check the
15-amp fuse (F2) located at the top of the main
power supply to verify that it is in working
order.

2) Remove and retain six screws securing the
basic cabinet rear cover plate and remove the
rear cover plate (Figure 4-7).

11) Route the power supply cabling through the
hole in the expansion cabinet and connect
both power supplies at the P1, P2 and P3
receptacles.

3) Unpack the main power supply and inspect it
carefully for any visible damage. Verify that all
connectors are securely attached.

12) With the main power supply turned OFF, plug
the AC power cord into the AC outlet.

4) Remove and retain the three corner screws
from the back of the main power supply.

13) Momentarily press each secondary power
supply circuit breaker to verify that it is not
tripped.

5) Slide the main power supply into the basic
cabinet from the front and secure in place with
three screws at the rear.

14) Place the main power supply power switch in
the ON position.

6) Check the two 30-amp fuses (F1 and F2)
located at the top of the power supply to verify
that they are in working order.

15) Verify that all secondary power supply power
indicator LEDs are on. If any of the LEDs are
not on, replace the NPSA-S (RINGER LED
should be pulsating rapidly).

7) Remove plastic cover from AC connection
terminal TB1 by removing two screws.

16) Using a multimeter (set to the appropriate
ranges), check the pins on connectors J701

8) Connect the white and black leads to the AC
terminal (black to L and white to N) and the

4-4

J702

J524
J523
J522
J521
J520
J519
J518
J517
J516
J515
J514
J513

J702

J512
J511
J510
J509
J508
J507
J506
J505
J504
J503
J502
J501

J524
J523
J522
J521
J520
J519
J518
J517
J516
J515
J514
J513

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

J512
J511
J510
J509
J508
J507
J506
J505
J504
J503
J502
J501

J701

TTY
AUX
SMDR
MODEM

J202

J6
J5
J4
J3
J2
J1

J701

TTY
AUX
SMDR
MODEM

J803

J18
J17
J16
J15
J14
J13
J12
J11
J10
J9
J8
J7

J201

J703

J203

GND

FIGURE 4-7—PERCEPTIONex
BASIC CABINET REAR COVER

J30
J29
J28
J27
J26
J25
J24
J23
J22
J21
J20
J19

TBI L N

FIGURE 4-8—PERCEPTIONex
CABLE CONNECTIONS

green lead (ground) to the GND screw on the
main power supply (Figure 4-8). Replace the
plastic cover and secure with two screws.

verify that it is not tripped.
11) Place the main power supply power switch in
the ON position.

9) With the main power supply turned OFF, plug
the AC power cord into the AC outlet.

WARNING!
Hazardous voltage that may cause death
or injury is exposed at the power supply
AC terminal.

10) Momentarily press each circuit breaker to

4-5

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
12) Verify that all main power supply power indicator LEDs are on (RINGER LED should be
pulsating rapidly). If any of the LEDs are not
on, replace the main power supply.

EXPANSION CABINET
J702
J701
-24V
-24V

13) Using a multimeter (set to the appropriate
ranges), check the pins on connectors J201,
J202, J203, J703 and J803 for the voltages
shown in Figure 4-9. (The connectors are on
the rear of the power supply chassis.) Measure between the voltage pin and a ground pin.
(All ground leads are tied to a single point, so
any can be used.) Figure 4-9 also shows the
acceptable range for each output voltage. If a
measured voltage falls outside of the acceptable range, replace the main power supply.

G
G
G
G
G

-24V
-24V

SIG2
RNG CK
-48V

SIG 1
G

EXPANSION CABINET
J701
-24V
-24V

J702
G
G
G
G
G

-24V
-24V

SIG2
RNG CK
-48V

SIG 1
G

BASIC CABINET

14) Turn the power supply OFF and then connect
J201, J202 and J203, respectively, as shown
in Figure 4-9.

J201
AC DOWN
BACK UP
-24V
-24V
-24V
-24V
-24V
-24V
-24V
-24V

15) Remove and retain the two screws securing
the peak load battery mounting bracket and
slide the bracket out the front of the basic
cabinet.
16) Install the peak load battery as shown in
Figure 4-4. Secure the battery to the mounting
bracket with the retaining strap and a single
screw.

J203

WARNING!
Hazardous voltage that may cause death
or injury is exposed at the peak load battery cables. DO NOT touch wires together.

+5V
+5V
+5V
+5V
+5V
+5V
+5V
-5V
-5V

17) Connect the peak load battery cables to TB2
on the rear of the basic power supply (see
Figure 4-4). Ensure that the correct polarity is
observed as follows:
blue to positive (+)
yellow to negative (-)

J202
PSA-M
G
G
RNG CK
G
G
G
G
G
-48V
G
-48V
G
G
G
G
-5V
G
-5V
+5V
+5V
G
G
G
G
G
G
G
G

G
SIG 1
SIG 2
SIG 1
SIG 2
G

J803
G
G
G

J703
-5V
-5V
+5V
+5V

G
G
G

FPSA ACCEPTABLE VOLTAGE RANGES
NOMINAL (VDC)
-48
-24
+12
-12
+5
-5

18) Slide the mounting bracket/battery assembly
in place and secure with two screws.
19) Set the BATTERY BACKUP switch to OFF
Figure 4-10.

RANGE (VDC)
-47.52 ~ -48.96
-26.75 ~ -28.12
+11.76 ~ +12.48
-11.76 ~ -12.48
+5.0 ~ +5.4
-5.0 ~ -5.4

2.10 First Expansion Cabinet Installation

WARNING!
Hazardous voltage that may cause death
or injury is present in the system during

FIGURE 4-9—PERCEPTIONex VOLTAGE CHECKS

4-6

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
operation. Ensure that AC power to both
cabinets is turned off prior to performing
this procedure.
NOTE:
A 13mm socket wrench and extension is recommended for ease of expansion cabinet
installation. Two expansion cabinets can be
installed.
1) Remove and retain the four screws securing
the basic cabinet top cover and lift the cover
off the cabinet (Figure 4-11).
2) Remove and retain the two screws securing
each of the expansion cabinet side panels.
Pull the side panels off.
3) Place the four casters on the basic cabinet in
the lock position to ensure cabinet stability
during the expansion cabinet installation.
4) On both the basic and expansion cabinets,
remove and retain two screws securing the
cabinets doors. Remove and retain the six
screws securing the rear panel on each cabinet.
5) Place the expansion cabinet on top of the
basic cabinet, ensuring proper alignment of
the four mounting holes. Secure in place with
four metric bolts, flat washers and lockwashers.
6) Reinstall the two side covers on the expansion
cabinet and secure in place using four screws
(two per side).
7) Install the top cover on the expansion cabinet
and secure with four screws.
8) Connect the intercabinet ground wire in accordance with Figure 4-8.
9) Route the expansion cabinet ribbon cable
from J405 in the expansion cabinet through
the opening provided in the cabinet bottom
and connect to the basic cabinet backplane at
J402.
10) Remove three screws from the secondary
power supply. From the front of the expansion
cabinet, slide the power supply into the rack
and secure in place with the three rear screws.

FIGURE 4-10—PERCEPTIONex
POWER SUPPLY CONTROLS AND INDICATORS

4-7

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
both power supplies to the lower connectors
at the P1, P2 and P3 receptacles.
12) With the main power supply turned OFF, plug
the AC power cord into the AC outlet.
13) Momentarily press each secondary power
supply circuit breaker to verify that it is not
tripped.
14) Place the main power supply power switch in
the ON position.
15) Verify that all secondary power supply power
indicator LEDs are on. If any of the LEDs are
not on, replace the NPSA-S (RINGER LED
should be pulsating rapidly).
16) Using a multimeter (set to the appropriate
ranges), check the pins on connectors J701
and J702 on the secondary power supply for
the voltages shown in Figure 4-9. (The connectors are on the rear of the power supply
chassis.) Measure between the voltage pin
and a ground pin. (All ground leads are tied to
a single point, so any can be used.) Figure 49 also shows the acceptable range for each
output voltage. If a measured voltage falls
outside of the acceptable range, replace the
secondary power supply.
17) Turn the power supply OFF.
18) Plug in connectors J701 and J702.
19) Route cable J703 into the basic cabinet and
plug it into connector J703.
20) Reinstall the rear panels and doors on both
cabinets and secure in place with screws.
FIGURE 4-11—PERCEPTIONex
EXPANSION CABINET INSTALLATION

2.20 Second Expansion Cabinet Installation

WARNING!
Hazardous voltage that may cause death
or injury is present in the system during
operation. Ensure that AC power to both
cabinets is turned off prior to performing
this procedure.

NOTE:
Prior to routing intercabinet cabling, check the
15-amp fuse (F2) located at the top of the main
power supply to verify that it is in working
order.

NOTE:
A 13mm socket wrench and extension is recommended for ease of expansion cabinet

11) Route the power supply cabling through the
hole in the expansion cabinet and connect

4-8

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
installation. Two expansion cabinets can be
installed.

11) Route the power supply cabling through the
hole in the expansion cabinet and connect
both power supplies to the upper connectors
at the P1, P2 and P3 receptacles.

1) Remove and retain the four screws securing
the basic cabinet top cover and lift the cover
off the cabinet (Figure 4-11).

12) With the main power supply turned OFF, plug
the AC power cord into the AC outlet.

2) Remove and retain the two screws securing
each of the expansion cabinet side panels.
Pull the side panels off.

13) Momentarily press each secondary power
supply circuit breaker to verify that it is not
tripped.

3) Place the four casters on the basic cabinet in
the lock position to ensure cabinet stability
during the expansion cabinet installation.

14) Place the main power supply power switch in
the ON position.

4) On both the basic and expansion cabinets,
remove and retain two screws securing the
cabinets' doors. Remove and retain the six
screws securing the rear panel on each cabinet.

15) Verify that all secondary power supply power
indicator LEDs are on. If any of the LEDs are
not on, replace the NPSA-S (RINGER LED
should be pulsating rapidly).
16) Using a multimeter (set to the appropriate
ranges), check the pins on connectors J701
and J702 on the secondary power supply for
the voltages shown in Figure 4-9. (The connectors are on the rear of the power supply
chassis.) Measure between the voltage pin
and a ground pin. (All ground leads are tied to
a single point, so any can be used.) Figure 49 also shows the acceptable range for each
output voltage. If a measured voltage falls
outside of the acceptable range, replace the
secondary power supply.

17) Turn the power supply OFF.

9) Route the expansion cabinet ribbon cable
from J406 in the expansion cabinet through
the opening provided in the cabinet bottom
and connect to the basic cabinet backplane at
J403.

19) Route cable J703 into the basic cabinet and
plug it into connector J803.

10) Remove three screws from the secondary
power supply. From the front of the expansion
cabinet, slide the power supply into the rack
and secure in place with the three rear screws.

3. PRINTED CIRCUIT BOARD INSTALLATION

18) Plug in connectors J701 and J702.

20) Reinstall the rear panels and doors on both
cabinets and secure in place with screws.

3.00 NFDU
3.01 Install an NFDU in the FDD0 slot in the basic
cabinet. If the system uses D.02 or later version
software and Remote Maintenance, a second NFDU
must be installed in the FDD1 slot in the basic
cabinet. There is one strap selection on the NFDU,
depending on the slot in which the PCB is installed.
The jumper block on the rear of the NFDU must be

NOTE:
Prior to routing intercabinet cabling, check the
15-amp fuse (F2) located at the top of the main
power supply to verify that it is in working
order.

4-9

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
3.31 The NPRU has one strap that requires verification before installation (Figure 4-15). If Automatic Wake-up is required, verify that the DROM is
installed in the IC15 socket. Install the NPRU in the
P00 slot. (An NPRU must be installed in the P00
card slot.) If a second NPRU PCB is used, install it
in the P01 slot in the PERCEPTIONe expansion
cabinet. In PERCEPTIONex, both NPRUs are installed in the basic cabinet. Verify that TB1 is
strapped as follows:
TB1: pins 1 and 2 must be strapped.

HHO
OP
LHI
STRAPS

HHI
D1

FDD0

D0
FG

FDD
(FD-235GF-121-U)

HHO
OP
STRAPS

LHI

FDD1

HHI
D1

NOTE:
DROM only required for digitized voice on
automated wake-up calls.

D0
FG

STRAP
TOP VIEW

FIGURE 4-12—NFDU STRAPPING
3.32 If NRCUs are to be installed, mount them on
the NPRU. The first NRCU mounts on connector
J3, the second on J4 (see Figure 4-16).

set as shown in Figure 4-12.
3.10 LCCU

3.40 NEKU, NDKU, and NOCU
3.11 Install the LCCU in the CCU slot of the basic
cabinet. There are no straps on this PCB; however,
there is a plug (P5). Verify that the connection plug
is in place in accordance with Figure 4-13.
3.20 NTWU

3.41 Install the NEKU in any of the line designated
slots L00 ~ L11 or L15 ~ L26 in PERCEPTIONe. If
an attendant console is used, an NEKU must be
installed in slot L00. If a second attendant console
is installed, a second NEKU must be installed in slot
L15. Attendant consoles must be installed on circuit 1 in both slots.
3.42 For PERCEPTIONex, install the NEKU in any
designated slot U00 ~ U31. To utilize attendant
consoles, install NEKUs in the following slots:
ATT#0-PCB position U00 Circuit #1
ATT#1-PCB position U01 Circuit #1
3.43 There are no straps on the NEKU PCB for
either system.
3.44 Install the NDKU in any of the line designated
slots L00 ~ L11 or L15 ~ L26 in PERCEPTIONe.
For PERCEPTIONex, install the NDKU in any designated slots U00 ~ U31. Some options require
adjacent PCB slots be left vacant.

FIGURE 4-13—LCCU STRAPPING

3.21 The NTWU has one strap that must be verified before installation (Figure 4-14). Install the
NTWU in the TWU slot of the basic cabinet. Ensure
that the strap is as follows:
TBC5: pins 1 & 2 must be strapped

3.45 The NDKU employs a 2B+D architecture for
each circuit that must be configured for one of four
different operating options using the dip switch S1
(Figure 4-17) as follows:
1) OPTION 1; Eight digital telephones only: this

3.30 NPRU

4-10

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

FIGURE 4-14—NTWU STRAPPING

FIGURE 4-15—NPRU STRAPPING
OPTION
S-1 POSITION
DIP switches 1 ~ 4: ON
1
DIP switches 2 ~ 4: ON
2
DIP switch 1: OFF
DIP switches 1, 3, and 4:
ON
3
DIP switch 2: OFF
DIP switches 1 and 2:
OFF
4
DIP switches 3 and 4: ON

FIGURE 4-16—NRCU MOUNTING
option uses one of the two B channels for each
circuit to interface up to eight 1000-series
digital telephones.

OPERATION
DKT only
DKT with DIU
or OCA
4 DSS

2) OPTION 2; Eight digital telephones with DIU
or OCA: this option uses both B channels for
each circuit to interface up to eight 1000series digital telephones; plus each telephone
may have an integrated Data Interface Unit
(PDIU-DI) or Off-hook Call Announce PCB
(DVSU) installed. In addition, this option sup-

8 DSS

4-11

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
SWITCH
POSITIONS
1

OFF

MCC

DKT
1

OFF

MCC

OCA/DIU
OFF MCC

NDKU2

1234

OFF

MCC

DSS4
1

OFF

MCC

DSS8
Black shading indicates
switch position

FIGURE 4-17—NDKU SWITCH OPTIONS

DDSSs on cirucits 1, 3, 5 and 7 on the
adjacent slot next to the NDKU PCB.
3. When using option 4, wire the first four
DDSSs to circuits 1, 2, 3 and 4 on the
NDKU PCB (these are the NDKU assigned DDSSs) and the second four
DDSSs to circuits 5, 6, 7 and 8 (these are
the DDSSs assigned to the adjacent slot)
on the NDKU PCB.

ports the Stand-alone Data Interface Unit
(PDIU-DS). One B channel for each circuit
interfaces a single PDIU-DS. The other B
channel of this circuit cannot be used. A
single PDIU-DS only may be installed per
each circuit.
3) OPTION 3; Four digital DSS consoles: this
option uses one of the B channels for each of
the two circuits to interface up to four 1000series digital DSS consoles.

3.46 The NOCU PCB is installed at a rate of one
PCB for each group of eight electronic telephones.
There are no strapping options on this PCB. The
NOCU is installed in any of the line designated slots
L00 ~ L11 and/or L15 ~ L26 in PERCEPTIONe,
and in any designated slots U00 ~ U31 in
PERCEPTIONex. If any of the eight circuits is not
used for Off-hook Call Announce, the remaining
circuits CANNOT be used for other electronic telephone assignments.

4) OPTION 4; Eight digital DSS consoles: this
option uses both B channels for each of the
two circuits to interface up to eight 1000series digital DSS consoles.

NOTE:
1. When using option 2 or 4, the next highest
number adjacent PCB slot cannot be
used. For example, if an NDKU is installed
in L01 or U01, the PCB slot L02 or U02
respectively, must be left vacant.
2. When using option 4, program the first
four DDSSs on circuits 1, 3, 5 and 7 on the
NDKU PCB. Program the second four

3.50 NSTU
3.51 Install the NSTU in any of the line designated
slots L00 ~ L11 or L15 ~ L26 in the PERCEPTIONe
system. The designated slots in PERCEPTIONex

4-12

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
are U00 ~ U31. There are no straps on the PCB for
either system.
3.60 NDSU
3.61 Install the NDSU PCB either in the C00 or C01
slots or in any of slots L00 ~ L11 or L15 ~ L26 in the
PERCEPTIONe system. Two NDSUs can be
installed in the same cabinet. There are no straps
on this PCB. There are no C slots resident within
the PERCEPTIONex system so NDSU PCB installation will be in any U slot .

3.73 The NCOU PCBs have Ground-/Loop-start,
600/900-ohm termination, and 2dB pad strap selections that must be made before they are installed
(Figure 4-19).

3.70 NEMU, NCOU, and NLSU
3.71 Trunk PCBs (NEMU, NCOU, and NLSU) may
be installed in any T slot. Additionally, up to 16 U
slots may also be used for trunk PCBs.

1) Each NCOU circuit is individually strapped for
either Ground Start or Loop Start operation.
The strapping location and options for each
circuit are shown as follows:

3.72 There are four circuits on the NEMU PCB,
and each circuit has its own set of straps (Figure 418). On a circuit-by-circuit basis, strap the PCB as
follows:
1) For Type I/II operation:
2) For 2-wire/4-wire connection:

NOTES:
1. The GROUND START “EXTEND/NO EXTEND” options refer to “loop extenders”
on long trunk loops. If a battery boost is
used on the trunk, select EXTEND, otherwise NO EXTEND should be selected.
2. The LOOP START “NORMAL/REVERSE”
options refer to the system’s ability to
detect a pre-ring supervision signal in the
form of a battery polarity reversal on the
CO TIP and RING.
• If NORMAL is selected, the system will
not be sensitive to CO trunk polarity.
• If REVERSE is selected, the CO circuit will be “made busy” when the CO
reverses polarity prior to ringing on an
incoming call.

3) For 600-/900-ohm operation:

2) Determine the proper impedance for each
trunk and then strap its NCOU circuit for either
600- or 900-ohm operation. Install the short-

4-13

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

TB406
TB402 TB306 TB301

TB302 TB206 TB201

TB202 TB106 TB101

TB102

TB401

600/900

TB407 TB405

TB304

TB307 TB305

TB403 A B C

ABC

TB303

600/900

TB204

600/900

TB207 TB205

600/900

TB104

600/900

TB107 TB105

TB404
ABC

ABC

TB203

ABC

NEMU2
FIGURE 4-18—NEMU STRAPPING

FIGURE 4-19—NCOU STRAPPING

4-14

ABC

TB103

ABC

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
ing bar across the center pin and the outer pin
labeled either 600 or 900 at each strapping
location (Figure 4-19). Each circuit’s strapping location is shown as follows:

ing should be used. For a distance of less than
2,000-ohm loop resistance, use Loop Dial
Pulsing. Strap each circuit as follows:
3) Each NLSU circuit must be adjusted for CO
trunk loop resistance to ensure proper detec-

3) In some installations, particularly those near
the serving Central Office, noise may be introduced over the CO trunk that will appear as

tion of incoming digits. Each circuit adjustment is made by strapping as follows:
sidetone at the telephone. In such situations,
a 2dB pad can be inserted into the line to
reduce the sidetone. The following table shows
the strapping position for each circuit to either
insert or remove the 2dB pad.

NOTE:
This strapping should be made only after the

3.74 Three separate strappings must be made for
each of the four circuits on the NLSU PCB (Figure
4-20).

appropriate CO distance strapping (step 2)
has been made. The CO trunk loop resistance
values are arbitrary and are used as an initial
strapping guide. If the incoming digits are not
being detected properly, move the strap to the
next most sensitive position and test again for
proper operation.
3.80 NDTU
3.81 A maximum of two NDTU PCBs (Figure 4-21)
may be installed. The system must be equipped
with an NTWU-3 to ensure proper operation of the
NDTU. The NDTU is connected to the telco through
a customer-supplied Channel Service Unit (CSU).
A separate CSU is required for each NDTU. Each
NDTU has 11 DIP switches and 8 strapping options, which must be verified before installation.

1) Determine the proper impedance for the trunk
line to be used, and then set the 600-ohm/900ohm loop termination for each circuit as follows:

NOTE:
The factory-default switch settings and strapping options are indicated by an asterisk (*).

2) When the CO distance exceeds 2,000-ohm
loop resistance, Battery-to-Ground Dial Puls-

1) Select the desired operating mode using mode
selection switch S1 (4-element DIP switch)
as follows:

4-15

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

ABCDEF

TB403

TB303

TB203

TB103

ab cd
TB402

ab cd
TB302

600/900

TB401

TB301
ABC

ab cd
TB202

600/900

TB201
ABC

ab cd
TB102

600/900

TB101
ABC

NLSU
FIGURE 4-20—NLSU STRAPPING

FIGURE 4-21—NDTU STRAPPING

4-16

ABC

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
ping options are indicated by an asterisk (*).
1) Select the desired operating mode using mode

priate channels using slot enable/disable
switch S3 (6-element DIP switch) as follows:

selection switch S1 (4-element DIP switch)
as follows:

NOTE:
Set switch element to ON to enable associated digital trunk channels; OFF to disable
channels.

NOTE:
Digital Multiplexed Interface BOS.
2) Determine the proper transmit equalizer setting; either short (0 ~ 150 feet), medium (150
~ 450 feet), or long (450 ~ 655 feet); then
select the appropriate setting using transmit

4) Signaling modes are individually selectable
for each active channel. Determine the appropriate signaling mode for each channel; either
CO (Loop Start) mode, CO (Ground Start)
mode, DID (2-wire loop signaling), or TIE
trunk (Type II 4-wire E&M) mode; then assign
the selected signaling modes using signaling
type selection switches S4 ~ S11 (6-element
DIP switches) see Loop/Ground Start Mode.
5) Configure the NDTU for the appropriate ROM

equalizer setting switch S2 (8-element DIP
switch) as follows:
type, either 64 Kbit or 256 Kbit, using the
strappings shown below.

3) The NDTU is installed in the T00 slot. A
second NDTU may be installed in the T08 slot.
Each NDTU provides a maximum of 24 channels, divided into groups consisting of four
channels each. The first group would fill trunk
slot T00, the second T01 with the remaining
four groups occupying trunk slots T02 ~ T05
for a total of six groups. For example, if eight
channels are active on the NDTU then slots
T00 and T01 are active i.e., no PCB may be
installed in slot T01. However, PCBs may be
installed in slots T02 ~ T05. Enable the appro-

6) When configured for normal operation, the
NDTU is in the slave mode, and the central
office serves as the master clock. For CO
testing purposes, the NDTU may be configured as the master. Configure the NDTU for

4-17

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
Loop/Ground Start Mode

the appropriate operating mode using the
strapping options shown below.
7) In some installations, particularly those near
the serving Central Office, noise may be introduced over the CO trunk that will appear as
sidetone at the telephone. In such situations,
a 2dB pad can be inserted into the line, for
either incoming voice or outgoing voice, to

reduce the sidetone. Strapping options for the
2dB pad are shown below.
8) Install the NDTU in the T00 slot in the main
cabinet. If applicable, install a second NDTU
in the T08 slot. Connect the NDTU to the CSU
using the Toshiba-supplied cable.
9) The NDTU contains an on-board 12.288 MHz
clock used to synchronize the NDTU with the
NTWU-3. Connect a coaxial clock cable from
NDTU connector J3 to NTWU connector J2.
3.90 NMDU and NDCU
3.91 The NMDU (Figure 4-22) must be strapped
for operation with either a one-pair or two-pair

modem connection. The two strapping positions for
each modem are shown below.
3.92 To change the strap positions on TB 801/802
it is necessary to lift the small piggy-back PCB off
the NMDU. Replace the PCB once the straps have
been changed.

4-18

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

FIGURE 4-22—NMDU STRAPPING
MODEM connectors (which require male RS-232C
DB25-pin connectors).

3.93 If any of the first four NMDU circuits are not
used for Modem Pooling, the corresponding DDIU
circuit may be used for a DDIU (-MA or -MAT)
connection. Use the DDIU Program in Section
200-255-300, Programming, to assign the desired
port (1 ~ 4) on the NMDU.

4.01 Detailed connection information for each cable
is shown in Chapter 5.

IMPORTANT!
Note the station, trunk, DSS console, and
DDIU/PDIU connections are identified by
the PCB location and circuit number on
that PCB. These numbers combine to form
a Port Number and are used in the programming section as the station, DSS console, or trunk circuit’s identifier when directory numbers and features are assigned.

3.94 The NDCU PCB is installed at a rate of one
PCB for each group of eight DDIUs. There are no
strapping options on this PCB.

NOTE:
The NMDU and NDCU PCBs are not used
with the PDIUs. PDIUs use the NDKU PCB.

4.02 Determine the station and DSS console (or

4. CABLE CONNECTIONS

PCB
LOCATION

4.00 All connections to the system are made on
the rear of the basic and expansion cabinets and on
the Power Failure Transfer Unit. Cables with standard male 25-pair amphenol-type connectors are
used for everything except the TTY, SMDR and

4-19

PCB
CIRCUIT

Pe L00 ~ L26 or C00

1~8

Pex U00 ~ U31

1~8

Example: L01

PORT NO.

L012

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
data) port numbers as follows (DSS consoles assigned to L or U slots use circuits 1, 3, 5, & 7):
PCB
LOCATION

PCB
CIRCUIT

Pe T00 ~ T15
Pex T00 ~ T15
U00 ~ U31
Example: T02

1~4

5.11 All electronic telephones are wall-mounted in
the same manner, and they may be mounted on a
wall or any other flat, vertical surface to which the
base can be secured. When selecting the mounting
site, consider the electronic telephone’s weight and
the additional stresses to which the mounting will
be subjected.

PORT NO.

1~4
3

T023

5.12 Loosen the four captive screws securing the
electronic telephone's base, and remove the base
(Figure 4-24).

4.03 Determine trunk port numbers as follows:

5.13 Using a cutter, remove the handset hanger
from the base. Insert the handset hanger in the slot
provided on the front of the telephone (Figure 425). The hanger fits in the notch on the handset.

5. ELECTRONIC TELEPHONE STATION
EQUIPMENT INSTALLATION
5.00 Electronic Telephone Connections

5.14 Rotate the mounting base 180° and secure to
the telephone with the four captive screws (Figure
4-26).

5.01 See the DEKT Program in Section 200-255300, Programming, for instructions on programming electronic telephones. The system must be
told which type of electronic telephone (10- or 20button, LCD) and what button assignment is required.

5.15 Connect the electronic telephone to the wall
modular connector with a short cord (approximately
3 inch length). Route the cord into the hollow
portion of the base, then mount the electronic
telephone on the wall mounting connector. Test
each electronic telephone using the TTRM Program, Section 200-255-300, Programming.

5.02 Electronic telephones are connected to the
MDF via standard twisted-pair jacketed telephone
cable. (Two-pair wiring is required; however, 3-pair
wiring is strongly recommended to permit future
upgrades, such as data, etc.) To accommodate the
electronic telephone line cord, terminate the cable
in a modular station connector block (RJ25) at the
station location. The standard modular electronic
telephone cord length is 7 feet (the maximum
allowed length is 25 feet).

5.20 Off-hook Call Announce
5.21 The Off-hook Call Announce (OCA) feature
enables an electronic telephone to originate and
receive voice announcement when the station’s
handset is off-hook. Standard telephones can originate off-hook call announces, however, it cannot
receive them. A station user is allowed or denied
the ability to originate the Off-hook Call Announce
feature in the DCOS Program. In order to receive
the Off-hook Call Announce feature, PCBs are
required to be installed in each affected electronic
telephone and the cabinet.

5.03 The overall length of the electronic telephone
cable run from equipment cabinet to phone must
not exceed 1,000 feet (305 M), 24 AWG cable.

IMPORTANT!
When installing the electronic telephone
cable, do not run parallel to and within 3
feet of an AC power line. Such power lines
should be crossed at right angles (90°)
only.

5.22 A PCB called NOCU is required to be installed
in the cabinet. Each NOCU provides eight Off-hook
Call Announce circuits. This PCB takes up a station
slot. Therefore, for each NOCU installed, station
capacity is decreased by eight stations.

5.04 Electronic telephone connection details are
shown in Figure 4-23.

5.23 HVSU and HVSI PCBs inside a 6500-series
electronic telephone allow the electronic telephone

5.10 Electronic Telephone Wall Mounting

4-20

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

ELECTRONIC
TELEPHONE
#1
NEKU PCB
PCB CONNECTOR

CROSS-CONNECT
BLOCK
RJ25
MODULAR JACK

CKT
1
CKT
2
CKT
3
CKT
4
CKT
5
CKT
6
CKT
7
CKT
8

TL1
RL1
DTL1
DRL1
TL2
RL2
DTL2
DRL2
TL3
RL3
DTL3
DRL3
TL4
RL4
DTL4
DRL4
TL5
RL5
DTL5
DRL5
TL6
RL6
DTL6
DRL6
TL7
RL7
DTL7
DRL7
TL8
RL8
DTL8
DRL8

26
1
27
2
28
3
29
4
30
5
31
6
32
7
33
8
34
9
35
10
36
11
37
12
38
13
39
14
40
15
41
16

(W-BL)
(BL-W)
(W-O)
(O-W)
(W-G)
(G-W)
(W-BR)
(BR-W)
(W-S)
(S-W)
(R-BL)
(BL-R)
(R-O)
(O-R)
(R-G)
(G-R)
(R-BR)
(BR-R)
(R-S)
(S-R)
(BK-BL)
(BL-BK)
(BK-O)
(O-BK)
(BK-G)
(G-BK)
(BK-BR)
(BR-BK)
(BK-S)
(S-BK)
(Y-BL)
(BL-Y)

TL1
RL1
DTL1
DRL1
TL2
RL2
DTL2
DRL2
TL3
RL3
DTL3
DRL3
TL4
RL4
DTL4
DRL4
TL5
RL5
DTL5
DRL5
TL6
RL6
DTL6
DRL6
TL7
RL7
DTL7
DRL7
TL8
RL8
DTL8
DRL8

T1
G

GRD
(BL)

T2
B

R
R1

(W)

MODULAR
STATION
TAILCORD
TO TELEPHONE #2
AUX

TO TELEPHONE #3

TO TELEPHONE #4

TO TELEPHONE #5

TO TELEPHONE #6

TO TELEPHONE #7

TO TELEPHONE #8

25-PAIR CABLE
"J" CABLE CONNECTOR PINS

FIGURE 4-23—ELECTRONIC TELEPHONE CONNECTION

4-21

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

FIGURE 4-24—REMOVAL OF
ELECTRONIC TELEPHONE BASE

FIGURE 4-26—INSTALLATION OF
MOUNTING BASE FOR WALL-MOUNT INSTALLATION
to be done in accordance with the following steps:
1) Remove the base as described in Paragraph
5.12.

NOTE:
Exercise care when assembling the HVSU
PCB to the HVSI PCB to prevent damage to
the connector pins.
2) Align the P5 connector on the HVSI PCB with
its receptacle on the HVSU PCB (Figure 427). Apply firm, even pressure to the PCBs to
ensure that the connectors mate properly (they
click when mated properly).
FIGURE 4-25—REMOVAL OF HANDSET HANGER
to receive the Off-hook Call Announce feature.

3) Position the HVSU/HVSI assembly on the
standoffs inside the base, and secure with the
two screws provided.

NOTE:
It is not recommended to equip electronic
telephones with both Off-hook Call Announce
and the headset option at the same time.

4) Connect the HVSU/HVSI PCBs to the electronic telephone PCB as shown in Figure 428.

5.24 The installation of the HVSU/HVSI PCBs has

5) Reinstall the electronic telephone base and

4-22

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
secure it with its four captive screws.
TO HVSU
CONNECTOR
ON MAIN PCB
INSIDE
TELEPHONE

5.25 Two pairs of the provided 3-pair modular line
connector connect the electronic telephone to the
DEKT port, and the other pair connects it to the
NOCU PCB.

P5
HSVI
HVSU

5.26 NOCU connection details are shown in Figure
4-29.
5.30 Carbon Handset Transmitter Installation
5.31 If a customer-supplied carbon-type handset
is used with the 6500-series electronic telephone,
it is necessary to cut two jumper straps located on
the main PCB inside the telephone. Cut the jumpers as follows:
5.32 Loosen the four captive screws securing the
electronic telephone's base, and remove the base
(Figure 4-24).
5.33 Locate the two carbon straps W201 and W202
(Figure 4-30). Cut both straps.

FIGURE 4-27—HVSI/HVSU INSTALLATION

5.34 Cut the W401 strap for proper LCD functions
in A.05 (and below) software.

HKT65-20KSD
HHEU
CONNECTOR

ROOM NOISE

5.35 Reinstall the electronic telephone's base and
secure using the four captive screws.
5.36 Remove the Toshiba handset and connect
the carbon-type handset.

RED

5.40 HHEU Installation

BEEP

CARBON

RED

5.41 The HHEU option provides the interface and
control for a customer-supplied headset.
RED
HVSU
WIRE
CONNECTOR

5.42 Loosen the four captive screws securing the
electronic telephone's mounting base, and remove
the base as shown in Figure 4-24.

CARBON STRAPS
W201
W202

5.43 Using a screwdriver or other suitable tool,
remove the plastic access tab located on the back
of the mounting base (Figure 4-31). The HHEU
modular connector is accessed through this opening.

HHEU STRAP
W203

FIGURE 4-28
ELECTRONIC TELEPHONE PCB CONNECTIONS

5.44 Set HEADSET/EXT IO switch SW601 on
the HHEU PCB (Figure 4-32) to the HEADSET

4-23

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
NOCU PCB

CROSS-CONNECT BLOCK

TL1

CKT
1

RL1
TL2

CKT
2

RL2
TL3

CKT
3

RL3
TL4

CKT
4

RL4
TL5

CKT
5

RL5
TL6

CKT
6

RL6
TL7

CKT
7

TL8
RL7

CKT
8

RL8

(W-BL)

TL1

(BL-W)

RL1

(W-G)

TL2

(G-W)

RL2

(W-S)

TL3

(S-W)

RL3

(R-O)

TL4

(O-R)

RL4

(R-BR)

TL5

(BR-R)

RL5

(BK-BL)

TL6

(BL-BK)

RL6

(BK-G)

TL7

(G-BK)

RL7

(BK-S)

TL8

(S-BK)

RL8

*
*
*
*
*
*
*
*

TO
EKT #2
TO
EKT #3

EKT WITH HVSU

TO
EKT #4
TO
EKT #5

3 PAIR:
2 PAIR FOR EKT
1 PAIR FOR OCA

TO
EKT #6
TO
EKT #7
TO
EKT #8

RJ-25
"J" CABLE CONNECTOR PINS

25-PAIR CABLE

* CORRECT POLARITY

FIGURE 4-29—OFF-HOOK CALL ANNOUNCE CONNECTION (NOCU)

FIGURE 4-31—REMOVAL OF
HHEU MODULAR CONNECTOR ACCESS TAB

FIGURE 4-30—LOCATION OF CARBON STRAPS

4-24

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
position.
5.45 Position the HHEU PCB on the standoffs
inside the mounting base, and secure in place
using the two screws provided.
5.46 Connect the HHEU PCB to the electronic
telephone PCB (Figure 4-30).
5.47 Connect the headset modular cord through
the access hole created in Paragraph 5.43 of this
procedure.
5.48 Reinstall the electronic telephone's base and
secure in place using the four captive screws.
5.50 Attendant Console Connection
5.51 The attendant console is connected to the
MDF via an industry-standard 25-pair cable
equipped with a female amphenol-type connector
at the console location.
FIGURE 4-32—INSTALLATION OF
HHEU UPGRADE OPTION
NEKU (L001)

CKT
1

TL001
RL001
DTL001
DRL001

5.52 Connection details for the attendant console(s)
are shown in Figures 4-33 and 4-34.

CROSS-CONNECT BLOCK

26
1
27
2

(W-BL)
(BL-W)
(W-O)
(O-W)

TL001
RL001
DTL001
DRL001

(W-BL)
(BL-W)
(W-O)
(O-W)

26
1
27
2

CONSOLE
CONNECTOR CORD

NPRU

EMT0
INIT0
MAJINO

29
4
5

(W-BR)
(BR-W)
(S-W)

EMT0
INIT0
MAJINO

(W-BR)
(BR-W)
(S-W)

29
4
5

ATT0 EG
EG
EG
EG
EG
EG

44
45
46
47
48
49

(Y-BR)
(Y-S)
(V-BL)
(V-O)
(V-G)
(V-BR)

ATT0 EG
EG
EG
EG
EG
EG

(Y-BR)
(Y-S)
(V-BL)
(V-O)
(V-G)
(V-BR)

44
45
46
47
48
49

8
9
10
11
12
13

(G-R)
(BR-R)
(S-R)
(BL-BK)
(O-BK)
(G-BK)

ATT0 -24V
-24V
-24V
-24V
-24V
-24V

(G-R)
(BR-R)
(S-R)
(BL-BK)
(O-BK)
(G-BK)

8
9
10
11
12
13

ATT0 -24V
-24V
-24V
-24V
-24V
-24V

ATTENDANT
CONSOLE #0
CONNECTOR J1-Pe
CONNECTOR J6-Pex

25-PAIR CABLE

FIGURE 4-33—ATTENDANT CONSOLE #0 CONNECTION

4-25

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
NEKU Pe (L151)
Pex(L011)

CKT
1

TL
RL
DTL
DRL

CROSS-CONNECT BLOCK

26
1
27
2

TL
RL
DTL
DRL

(W-BL)
(BL-W)
(W-O)
(O-W)

26
1
27
2

CONSOLE
CONNECTOR CORD

NPRU

EMT1
INIT1
MAJIN1

29
4
5

(W-BR)
(BR-W)
(S-W)

EMT1
INIT1
MAJIN1

(W-BR)
(BR-W)
(S-W)

29
4
5

ATT1 EG
EG
EG
EG
EG
EG

44
45
46
47
48
49

(Y-BR)
(Y-S)
(V-BL)
(V-O)
(V-G)
(V-BR)

ATT1 EG
EG
EG
EG
EG
EG

(Y-BR)
(Y-S)
(V-BL)
(V-O)
(V-G)
(V-BR)

44
45
46
47
48
49

8
9
10
11
12
13

(G-R)
(BR-R)
(S-R)
(BL-BK)
(O-BK)
(G-BK)

ATT1 -24V
-24V
-24V
-24V
-24V
-24V

(G-R)
(BR-R)
(S-R)
(BL-BK)
(O-BK)
(G-BK)

8
9
10
11
12
13

ATT1 -24V
-24V
-24V
-24V
-24V
-24V

ATTENDANT
CONSOLE #1
CONNECTOR J501-Pe
CONNECTOR J5-Pex

25-PAIR CABLE

FIGURE 4-34—ATTENDANT CONSOLE #1 CONNECTION

PERCEPTIONe
Att#0-PCB position L00 Circuit #1
Att#1-PCB position L15 Circuit #1

cent to an electronic telephone (preferably an LCD
model). DSS consoles use 2-pair wiring and are
connected to the MDF via standard twisted-pair
telephone cables. The console connection is made
using only the data pair. An RJ25 modular connector should be attached to the instrument-end of the
telephone cable to permit connection to the DSS
console.

PERCEPTIONex
Att#0-PCB position L00 Circuit #1
Att#1-PCB position L01 Circuit #1

5.63 The overall length of the DSS console cable
run from the equipment cabinet must not exceed
500 feet (152.5 M), 24 AWG cable.

5.53 Each attendant console requires a port on an
NEKU PCB to provide a speech path. The NEKUs
must be installed as follows:

IMPORTANT!
When installing the DSS console cable, do
not run parallel to and within 3' of an AC
power line. Such power lines should be
crossed at right angles (90°) only.

NOTE:
DO NOT cross connect an electronic telephone with either of these ports if the associated attendant console is installed.
5.60 DSS Console Connections

5.64 DSS console(s) connection details are shown
in Figures 4-35 and 4-36, PERCEPTIONe and ex,
respectively.

5.61 See the DSS Program in Section 200-255300, Programming, to input information concerning
the electronic DSS consoles.

5.70 Digital Data Interface Unit Connections
(DDIU)

5.62 The DSS console must be positioned adja-

4-26

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

NDSU

CKT
1

RJ11
MODULAR JACK

PCB CONNECTOR

TL1

W-BL

TL1

RL1

BL-W

RL1

DTL1
DRL1

27
2

W-O
O-W

CKT
3

CKT
4

DTL1
DRL1

CKT
2

MODULAR
STATION CORD

TL2

W-G

TL2

RL2

G-W

RL2

DTL2

W-BR

DTL2

DRL2

BR-W

DRL2

TL3

W-S

TL3

RL3

S-W

RL3

DTL3

R-BL

DTL3

DRL3

BL-R

DRL3

TL4

R-O

TL4

RL4

O-R

RL4

DTL4

R-G

DTL4

DRL4

G-R

DRL4

TO DSS
CONSOLE #2

209

219

229

239

249

208

218

228

238

248

207

217

227

237

247

257

206

216

226

236

246

256

205

215

225

235

245

255

204

214

224

234

244

203

213

223

233

243

253

202

212

222

232

242

252

201

211

221

231

241

251

200

210

220

230

240

250

NT1

254

DSS CONSOLE #1

TO DSS
CONSOLE #3

TO DSS
CONSOLE #4

FIGURE 4-35—DSS CONSOLE CONNECTION FOR PERCEPTIONe "C" SLOT

NDSU

CKT
1

CKT
3

CKT
5

CKT
7

RJ11
MODULAR JACK

PCB CONNECTOR
TL1
RL1
DTL1
DRL1
TL2
RL2
DTL2
DRL2
TL3
RL3
DTL3
DRL3
TL4
RL4
DTL4
DRL4
TL5
RL5
DTL5
DRL5
TL6
RL6
DTL6
DRL6
TL7
RL7
DTL7
DRL7
TL8
RL8
DTL8
DRL8

26
1
27
2

W-BL
BL-W
W-O
O-W

TL1
RL1
DTL1
DRL1

NOT
USED
30
5
31
10

209

219

229

239

249

208

218

228

238

248

207

217

227

237

247

257

206

216

226

236

246

256

225

235

245

205

W-S
S-W
R-BL
BL-R

TL3
RL3
DTL3
DRL3

TO DSS
CONSOLE #2

215

NT1

255

204

214

224

234

244

254

203

213

223

233

243

253

212

222

232

242

252

201

211

221

231

241

251

200

210

220

230

240

250

202

DSS CONSOLE #1

NOT
USED
34
9
35
10

MODULAR
STATION CORD

R-BR
BR-R
R-S
S-R

TL5
RL5
DTL5
DRL5

TO DSS
CONSOLE #3

BK-G
G-BK
BK-BR
BR-BK

TL7
RL7
DTL7
DRL7

TO DSS
CONSOLE #4

NOT
USED
38
13
39
14
NOT
USED

FIGURE 4-36—DSS CONSOLE CONNECTION FOR PERCEPTIONex "U" SLOTS AND PERCEPTIONe "L" SLOTS

4-27

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
5.71 See the DDIU Program in Section 200-255300, Programming, to input information concerning
Digital Data Interface Units. The system must be
told which type of DDIU (-MA or -MAT) is installed
at each location.

single unit) as follows:
1) Remove the electronic telephone base (see
Paragraph 5.12).
2) Replace the telephone base with the DDIUMAT.

5.72 Digital Data Interface Units require only singlepair wiring and are connected to the MDF via
standard twisted-pair telephone cables.

NOTE:
An electronic telephone with a DDIU-MAT
attached cannot be wall-mounted.

NOTE:
The DDIU-MAT requires an additional twopair for electronic telephone operation. (For
this reason, three-pair cable should be used at
locations where a DDIU-MAT may be installed.)

5.82 The DDIU-MAT requires four types of connections for proper operation.
• Power supply (to power outlet).
• 25-pin female RS-232C connector (to data device).
• 2-pair modular line cord (to electronic telephone).
• 3-pair modular connector (to LCEC/NCEC).

5.73 Digital Data Interface Unit connection details
are shown in Figure 4-37.
5.80 DDIU-MAT

5.83 The power supply (provided) connects the
DDIU-MAT to a 117 VAC wall outlet. The 25-pin
female RS-232C connector interfaces with the customer-supplied Data Terminal Equipment (DTE)

5.81 The DDIU-MAT (Figure 4-38) mounts directly
on the bottom of an electronic telephone (forming a
NDCU PCB
TL1

CKT
1

RL1
TL2

CKT
2

RL2
TL3

CKT
3

RL3
TL4

CKT
4

RL4
TL5

CKT
5

RL5
TL6

CKT
6

RL6
TL7

CKT
7

TL8
RL7

CKT
8

RL8

CROSS-CONNECT BLOCK

RJ11
BLOCK

(W-BL)

TL1

(BL-W)

RL1

(W-G)

TL2

(G-W)

RL2

(W-S)

TL3

T
1 PAIR

*
G
B

R
Y
TOSHIBA

(S-W)

RL3

(R-O)

TL4

(O-R)

RL4

(R-BR)

TL5

(BR-R)

RL5

(BK-BL)

TL6

(BL-BK)

RL6

(BK-G)

TL7

(G-BK)

RL7

(BK-S)

TL8

(S-BK)

RL8

*
*
*
*
*
*

TO
DDIU #3

DDIU-MA
DDIU-MAT

TO
DDIU #4
TO
DDIU #5
3 PAIR

TO
DDIU #6
TO
DDIU #7
TO
DDIU #8

RJ-25
"J" CABLE
CONNECTOR PINS

25-PAIR CABLE

* CORRECT POLARITY

FIGURE 4-37—DIGITAL DATA INTERFACE UNIT CONNECTION (DDIU-MA and DDIU-MAT)

4-28

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

FIGURE 4-38—INSTALLING DDIU-MAT
Pin No.
1
2
3
4
5
6
7
8

nections, Paragraph 5.70).

Designation

FG
SD
RD
RTS
CTS
DSR
SG
RCD

Protective Ground/Frame
Transmitted Data (to DDIU)
Receive Data (from DDIU)
Request to Send (to DDIU)
Clear to Send (from DDIU)
Data Set Ready (from DDIU)
Signal Ground/Common Return
Receive Carrier Detect (from DDIU)
Transmission
Signal Element Timing
15 ST2
(from DDIU)

5.85 Several DIP switches found on the bottom of
the DDIU-MAT must be set for proper operation

Transmission Signal Element Timing
(from DDIU)
20 DTR Data Terminal Ready/Equipment
Ready (to DDIU)
17

Ring Indicator (from DDIU)

FIGURE 4-39—DDIU-MAT DIP SWITCHES

and uses the following pins:

(Figure 4-39).
5.84 The provided 2-pair modular line cord connects the DDIU-MAT to the electronic telephone
line connector. The 3-pair modular line connector
connects to the 3-pair house cable run from the
LCEC/NCEC (see Digital Data Interface Unit Con-

5.86 When the DATA DETECTION switch (Switch
1) is placed in the ON position, the automatic data
release feature will be activated (data connection is
automatically released if no data is transmitted for

4-29

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
ON-Data device provides an Equipment Ready signal to the DDIU (the
Terminal Ready LED will light only
when the signal is received).
OFF-Data device does not provide an
Equipment Ready signal to the DDIU
(the Terminal Ready LED will remain
lit continuously).
Switch 2 = not used.
Switch 3 = not used.
Switch 4 = ON (Enables automatic answer mode of
operation.)
Switch 5 = ON (Activates Automatic Data Release
feature. The data connection is automatically released if no data is transmitted for a period of 18 minutes.)
Switch 6 = 2400 BPS **
Switch 7 = 4800 BPS **
Switch 8 = 9600 BPS **

5.87 Switches 2, 3, and 4 select the data speed for
synchronous transmission only.
Switch 2 = 2400 bps
Switch 3 = 4800 bps
Switch 4 = 9600 bps
5.88 If asynchronous operation is used, the
switches will have no effect and the data speed will
self-adjust to a maximum speed of 19.2 kbps or
less.
5.89 A power ON/OFF switch that appears on
some early DDIU-MAT models controls power to
the DDIU-MAT from the power supply. If the switch
is OFF, the DDIU-MAT will not function, but the
electronic telephone will continue functioning normally. When the switch is ON, both DDIU-MAT and
electronic telephone are functional. In later models,
the DDIU-MAT is operational when the power supply is plugged in.

*A data path cannot be established if the
Terminal Ready light is OFF (even though a
DDIU-MA can be answered manually). The
Terminal Ready light must be ON to establish
a data path when answering manually.
**Select the appropriate speed for synchronous data transmission. If the asynchronous
mode of operation is used, these switches
have no effect and the DDIU-MA will automatically adjust to the appropriate speed (to a
maximum of 19.2 kbps).

IMPORTANT!
All connections to DDIUs (-MA or -MAT)
must observe correct tip and ring polarity
for proper operation.
5.90 DDIU-MA
5.91 The DDIU-MA is a stand-alone unit that incorporates both the manual dialing and auto-answering features of the DDIU-MAT, but is used as a data
transceiver only.

5.95 Two switches on the DIUB PCB must be set
for either DTE or MODEM (DCE) operation. The pin
assignments shown in Paragraph 5.83 explain the
RS-232C cable signaling differences between DTE
and DCE devices. (Typically, a DTE is a terminal
device such as a personal computer or printer,
while a DCE is an intermediate device such as a
modem or protocol converter connected to a host.
Refer to the data device manufacturer’s documentation for its signaling information.) Set the DIUB
PCB switches as follows:

5.92 The DDIU-MA has several internal and external switches that must be set for proper operation.
5.93 The power ON/OFF switch, on the bottom of
the DDIU-MA, must be turned ON for the DDIU-MA
to operate. When the switch is ON, an LED on the
front faceplate will light.
5.94 The DDIU-MA’s faceplate must be removed
to set the internal DIP switches. Remove the faceplate by carefully lifting the lower right corner and
then pulling the faceplate away from the base. Set
the following parameters as required at switch S26
on the internal DIUA PCB (Figure 4-40):

1) Loosen the two screws found under the DDIUMA’s faceplate on the right side (top and
bottom) of the DIUA PCB (Figure 4-40).
2) Carefully separate the two halves of the DDIU-

Switch 1* = Equipment Ready Supervision

4-30

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

LOOSEN
HKTD001A

DTE MODEM

P3
P1.
S2

R12

S26

OFF

12345678

ER SUP
AUTOANS
NODATADET
2400 BPs
4800 BPs
9600 BPs

MADE IN
JAPAN

TOSHIBA DIUA
TOSHIBA

S2
S3

LOOSEN
FIGURE 4-40—DDIU-MA DIUA PCB

FIGURE 4-41—DIUB PCB

MA to expose the S2 and S3 (DTE/MODEM)
switches (Figure 4-41) in the upper left corner
of the DIUB PCB.

nections for proper operation:
• Power supply (to facility power).
• 25-pin female RS-232C connector (DDIU-MA to
LCEC/NCEC).
• Single-pair modular connector (DDIU-MA to
LCEC/NCEC).

3) If the DDIU-MA is to be connected to a DTE,
both switches must be in the DTE position. If
it will be connected to a DCE, both switches
must be in the MODEM position.

5.98 The power supply (provided) connects the
DDIU-MA to a 117 VAC wall outlet. The 25-pin
female RS-232C connector connects to the customer-supplied data device and is configured for
either DTE or DCE operation as follows:

4) Reassemble the DDIU-MA.
5.96 See Operating Procedures or DDIU-MA and
Electronic Telephone User Guides for information
on the DDIU dialpad, LED/button operation and
functions.

5.99 The DDIU-MA connects to the LCEC/NCEC

5.97 The DDIU-MA requires three types of con-

4-31

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
DTE Position:
Pin No.
1
2
3
4
5

FG
SD
RD
RTS
CTS

EQUIPMENT INSTALLATION

Designation
6.00 Digital Telephone Connections

Protective Ground/Frame
Transmitted Data (to DDIU)
Receive Data (from DDIU)
Request to Send (to DDIU)
Clear to Send (from DDIU)

6.01 See the DEKT Program in Section 200-255300, Programming, for instructions on programming digital telephones. When installing digital
telephones, digital DSS consoles, PDIU-DI, or PDIUDS, Version D.04 software or higher must be installed. The system must be told the type of digital
telephone (20-button, or 20-button with LCD) and
what button assignment is required.

6
7
8

DSR Data Set Ready (from DDIU)
SG Signal Ground/Common Return
RCD Receive Carrier Detect (from DDIU)
15 ST2 Transmission Signal Element Timing 2
(from DDIU)
17

6.02 Digital telephones are connected to the MDF
via standard twisted-pair jacketed telephone cable.
(Single-pair wiring is required; however, 2- or 3-pair
wiring is strongly recommended to permit expected
distances for data, spare pair, etc.) To accommodate the digital telephone line cord, terminate the
cable in a modular station connector block (RJ25)
at the station location. The standard modular digital
telephone cord length is 7 feet (the maximum
allowed length is 25 feet).

Transmission Signal Element Timing 2
(from DDIU)

20 DTR Data Terminal Ready/Equipment
Ready (to DDIU)
22 CI Ring Indicator (from DDIU)

DCE (MODEM) Position:
Designation
Pin No.
1
2
3
4
5
6
7

FG
TD
RD
RTS
CTS
DSR
SG

Protective Ground/Frame
Transmitted Data (from DDIU)
Receive Data (to DDIU)
Request to Send (from DDIU)
Clear to Send (to DDIU)
Data Set Ready (to DDIU)
Signal Ground/Common Return
Data Terminal Ready/Equipment
Ready (from DDIU)

6.03 The overall length of the digital telephone
cable run from equipment cabinet to phone must
not exceed 1,000 feet (305 M), 24 AWG cable.

IMPORTANT!
When installing the digital telephone cable,
do not run parallel to and within 3 feet of an
AC power line. Such power lines should be
crossed at right angles (90°) only.

24 ST1 Transmit Signal Element Timing 1
(to DDIU)

6.04 Digital telephone connection details are shown
in Figure 4-42.

with a single-pair station line cable that plugs into
the modular connector on the back of the base (see
Digital Data Interface Unit Connections, Paragraph
5.70).

6.10 Digital Telephone Wall Mounting
6.11 Both telephones are wall-mounted in the same
manner, and they may be mounted on a wall or any
other flat, vertical surface to which the base can be
secured. When selecting the mounting site, consider the digital telephone’s weight and the additional stresses to which the mounting will be subjected.

IMPORTANT!
All connections to DDIUs (-MA or -MAT)
must observe correct tip and ring polarity
for proper operation.
6. DIGITAL TELEPHONE STATION

6.12 Loosen the four captive screws securing the

4-32

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
NOTE:
Digital Telephones with Data Interface Units (PDIU-DI) or Off-hook Call Announce (DVSU), and Standalone Data Interface Units (PDIU-DS) are connected, per Figure 4-42, using single-pair wiring.

NDKU PCB
PCB CONNECTOR

DIGITAL
TELEPHONE
#1 or
PDIU-DS

CROSS-CONNECT
BLOCK

RJ25
MODULAR JACK

CKT
1
CKT
2
CKT
3
CKT
4
CKT
5
CKT
6
CKT
7
CKT
8

TL1
RL1

TL2
RL2

TL3
RL3

TL4
RL4

TL5
RL5

TL6
RL6

TL7
RL7

TL8
RL8

26
1
27
2
28
3
29
4
30
5
31
6
32
7
33
8
34
9
35
10
36
11
37
12
38
13
39
14
40
15
41
16

TL1
RL1

T1
G

GRD
(BL)

T2
B

R
R1

(W)

TL2
RL2

TL3
RL3

TL4
RL4

TL5
RL5

TL6
RL6

TL7
RL7

TL8
RL8

25-PAIR CABLE
"J" CABLE CONNECTOR PINS

FIGURE 4-42—DIGITAL TELEPHONE CONNECTION

4-33

MODULAR
STATION
TAILCORD
TO TELEPHONE #2
AUX

TO TELEPHONE #3

TO TELEPHONE #4

TO TELEPHONE #5

TO TELEPHONE #6

TO TELEPHONE #7

TO TELEPHONE #8

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
digital telephone's base, and remove the base
(Figure 4-43).
6.13 Using a cutter, remove the handset hanger
from the base. Insert the handset hanger in the slot
provided on the front of the telephone (Figure 444). The hanger fits in the notch on the handset.
6.14 Rotate the mounting base 180° and secure to
the telephone with the four captive screws (Figure
4-45).
6.15 Connect the electronic telephone to the wall
modular connector with a short cord (approximately
3 inch length). Route the cord into the hollow
portion of the base, then mount the digital telephone on the wall mounting connector. Test each
digital telephone using the TTRM Program, Section 200-255-300, Programming.

FIGURE 4-44—REMOVAL OF HANDSET HANGER

6.20 Off-hook Call Announce
6.21 The Off-hook Call Announce (OCA) feature
enables a digital telephone to originate and receive
voice announcement when the station’s handset is

HANDSET
HANGER

PLASTIC
TAB

HHEU

FIGURE 4-45—INSTALLATION OF
MOUNTING BASE FOR WALL-MOUNT INSTALLATION
off-hook. Standard telephones can originate offhook call announces, however, it cannot receive
them. A station user is allowed or denied the ability
to originate the Off-hook Call Announce feature in
the DCOS Program. In order to receive the Offhook Call Announce feature, a PCB (DVSU) is
required to be installed in each affected digital
telephone, and the NDKU must be set for option 2

FIGURE 4-43—REMOVAL OF
DIGITAL TELEPHONE BASE

4-34

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
(see Paragraph 3.45 of this chapter).

screws provided.

6.22 A DVSU PCB inside a 1000-series digital
telephone allows the digital telephone to receive
the Off-hook Call Announce feature.

4) Connect the DVSU wire plugs to the connectors labelled “DVSU” on both telephone’s PCBs
(Figures 4-46 and 4-47).

NOTE:
It is not recommended to equip digital telephones with both Off-hook Call Announce and
the headset option at the same time.

IMPORTANT NOTE!
Make sure that the DVSU wire plugs are
connected to the proper connectors.
5) Reinstall the telephone’s mounting base (Figure 4-43), and secure it with its four captive
screws.

6.23 The installation of the DVSU PCB must be
done in accordance with the following steps:

6.24 A single pair of wires are required to connect
the digital telephone to the NDKU port. OCA connection details are shown in Figure 4-42, the Digital
Telephone Connection diagram.

1) Loosen the four captive screws securing the
telephone's mounting base (Figure 4-43), and
remove the base.
2) Loosen the four captive screws securing the
metal plate to the standoffs inside the base
where the DVSU PCB will be installed (Figure
4-46). Remove the metal plate and discard it.

6.30 Carbon Handset Transmitter Installation
6.31 If a customer-supplied carbon-type handset
is used with the 1000-series digital telephone, the
two jumper straps on the telephone’s upper PCB,
labelled “PERCEPTION-SUB (SPF),” must be cut.
To cut the straps:

3) Position the DVSU PCB on the standoffs
(Figure 4-46), and secure it with the four
IMPORTANT!
Make sure that the DVSU wire
plugs are inserted into the
TO DVSU
correct UPPER and LOWER
CONNECTOR
PCB connectors of the
ON UPPER PCB telephone. Do not plug DVSU
into HHEU connector.
INSIDE
TELEPHONE

1) Loosen the four captive screws securing the
telephone’s mounting base (Figure 4-43), and
remove the base.
2) Refer to Figure 4-47, and locate the CARBON
straps, W301 and W302, and cut them.
HHEU

TO DVSU
CONNECTOR
ON LOWER PCB
INSIDE
TELEPHONE

W303
W302
CARBON

W304 BEEP

B
U

-S

-2

0
T1

W301
CARBON

ROOM
NOISE

IB
H

DVSU
HHEU

EXSP
STRAP

DVSU

DIU STRAP:
W401-1020SD
W302-1020H

FIGURE 4-47
TELEPHONE PCB CONNECTIONS AND STRAPS

FIGURE 4-46—DVSU INSTALLATION

4-35

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
2) Using a screw driver or other suitable tool,
remove the plastic tab located on the back of
the mounting base (Figure 4-43). The HHEU
modular connector for the headset is accessed
through this opening.

3) Reinstall the telephone base (Figure 4-43),
and secure it with its four captive screws.
6.40 Beep Strap Removal
6.41 A beep is emitted whenever a dialpad button
or flexible button is pressed. This beep can be
eliminated if the beep strap is cut. To cut the strap:

3) Set the SW601 switch on the HHEU PCB to
the HEADSET position (Figure 4-48).

1) Loosen the four captive screws securing the
telephone’s mounting base (Figure 4-43), and
remove the base.

4) If the headset receiver is not to receive OCA
caller voice announcements, cut both sides of
the R607 resistor on the HHEU PCB (Figure 448), then remove the resistor.

2) Refer to Figure 4-47, and locate the BEEP
strap, W304, labelled “PERCEPTION10-SUB
(SPF)” on the telephone’s upper PCB, and cut
it.

5) Position the HHEU PCB on the standoffs
inside the base (Figure 4-48), and secure with
the two screws provided.

3) Reinstall the telephone’s mounting base (Figure 4-43), and secure it with its four captive
screws.

6) Connect the HHEU PCB to the telephone’s
upper PCB, labelled “PERCEPTION10-SUB
(SPF).” See Figure 4-47.

6.50 Microphone/Speaker Threshold Adjustment (Speakerphone only)

7) Refer to Figure 4-47, and locate the HHEU
strap, W303, on the upper PCB. Cut the
strap if the HHEU PCB is to be connected to

6.51 If the speaker frequently cuts off during
handsfree operation, because of high ambient noise
levels, set the ROOM NOISE switch to the high
position. To set the switch:

COMPONENT SIDE OF HHEU (V.3 or later)

1) Loosen the four captive screws securing the
telephone’s mounting base (Figure 4-43), and
remove the base.

R607
SW601

2) Refer to Figure 4-47, and locate the ROOM
NOISE switch, labelled “PERCEPTION10SUB (SPF)” on the telephone’s upper PCB.
Carefully push the switch to the HIGH (H)
position.

P601

3) Reinstall the telephone’s mounting base (Figure 4-43), and secure it with its four captive
screws.

HHEU

6.60 HHEU Installation
6.61 The HHEU option provides the interface and
control for a customer-supplied headset. It is installed in accordance with the following steps:
1) Loosen the four captive screws securing the
telephone’s mounting base (Figure 4-43), and
remove the base.

FIGURE 4-48
HHEU INSTALLATION FOR DIGITAL TELEPHONE

4-36

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
a headset.

telephone’s base; the other unit is a small selfcontained box called the stand-alone DIU (PDIUDS). Each DIU is powered by the NDKU PCB it is
connected to; therefore, no external power is
required.

8) Reinstall the telephone’s mounting base
and secure it with its four captive screws.
6.70 Attendant Console Connection

6.92 Both PDIUs can be connected to standard
Electronic Industries Association (EIA) RS-232
asynchronous serial data devices. EIA devices
are divided into two categories:
• Data communication equipment (DCE). Common DCE devices are modems and some
printers.
• Data terminal equipment (DTE). Common DTE
devices are personal computers, ASCII terminals, and some printers.
The PDIU-DI operates like a DCE, and it connects directly to DTE devices using standard RS232 cables. Depending on how its internal jumper
plugs are configured, the PDIU-DS can either
operate like a DTE and connect to DCE devices,
or operate like a DCE device and connect to a
DTE device. In most applications, DTE and DCE
devices exchange data between each other via
the standard RS-232 cable connection.

6.71 See Paragraph 5.50 for the attendant console connection.
6.80 DSS Console Connections
6.81 See the DSS Program in Section 200-255300, Programming, to input information concerning the digital DSS consoles.
6.82 The DSS console must be positioned adjacent to a digital telephone (preferably an LCD
model). DSS consoles use 2-pair wiring and are
connected to the MDF via standard twisted-pair
telephone cables. An RJ25 modular connector
should be attached to the instrument-end of the
telephone cable to permit connection to the DSS
console.
6.83 The overall length of the DSS console cable
run from the equipment cabinet must not exceed
1000 feet (304 M), 24 AWG cable.

6.93 PDIUs can function with DCE and DTE
devices at data speeds of up to 19.2kbps; however, keyboard dialing using AT commands (from
a PC or a terminal connected to a PDIU) is limited
up to 9.6kbps. PDIU data transmission speed is
set by the first AT command that the PDIU receives once it is in the command mode. The
transmission speed is transparent to the PDIU if
data is being sent via manual dialing or if the
PDIU is receiving calls.

IMPORTANT!
When installing the DSS console cable, do
not run parallel to and within 3' of an AC
power line. Such power lines should be
crossed at right angles (90°) only.
6.84 DSS console(s) connection details are
shown in Figures 4-49 and 4-50, for both
PERCEPTIONe and ex.

NOTES:
1. See the DDIU Program in Section 200255-300 for information on programming
the Digital Data Interface Units. The system must be told which type of PDIU (-DI
or -DS) is installed at each location.
2. Digital Data Interface Unit (PDIU-DI and
PDIU-DS) connection details are shown
in Figure 4-42, the Digital Telephone
Connection diagram.
IMPORTANT NOTE!
To use the PDIU-DI or PDIU-DS with AT

6.90 DIGITAL DATA INTERFACE UNIT
(PDIU)
6.91 The Perceptione&ex with D.04 software
provides two new style digital Data Interface
Units (DIUs) that enable digital telephone users
to simultaneously transmit and receive data on
the same NDKU station port and wire pair while
communicating on a voice call. One unit, called
the integrated DIU (PDIU-DI) replaces the digital

4-37

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

NDKU

CKT
1

CKT
2

CKT
3

CKT
4

RJ11
MODULAR JACK

PCB CONNECTOR

TL1

W-BL

TL1

RL1

BL-W

RL1

DTL1

W-O

DTL1

DRL1

O-W

DRL1

TL2

W-G

TL2

RL2

G-W

RL2

DTL2

W-BR

DTL2

DRL2

BR-W

DRL2

TL3

W-S

TL3

RL3

S-W

RL3

DTL3

R-BL

DTL3

DRL3

BL-R

DRL3

TL4

R-O

TL4

RL4

O-R

RL4

DTL4

R-G

DTL4

DRL4

G-R

DRL4

MODULAR
STATION CORD

DIGITAL DSS
CONSOLE #1

TO DSS
CONSOLE #2

TO DSS
CONSOLE #3

TO DSS
CONSOLE #4

FIGURE 4-49—DIGITAL DSS CONSOLE CONNECTION FOR PERCEPTIONe "C" SLOT
NDKU

CKT
1

CKT
3

CKT
5

CKT
7

RJ11
MODULAR JACK

PCB CONNECTOR
TL1
RL1
DTL1
DRL1
TL2
RL2
DTL2
DRL2
TL3
RL3
DTL3
DRL3
TL4
RL4
DTL4
DRL4
TL5
RL5
DTL5
DRL5
TL6
RL6
DTL6
DRL6
TL7
RL7
DTL7
DRL7
TL8
RL8
DTL8
DRL8

26
1
27
2

W-BL
BL-W
W-O
O-W

TL1
RL1
DTL1
DRL1

NOT
USED
30
5
31
10

W-S
S-W
R-BL
BL-R

TL3
RL3
DTL3
DRL3

TO DSS
CONSOLE #2

R-BR
BR-R
R-S
S-R

TL5
RL5
DTL5
DRL5

TO DSS
CONSOLE #3

BK-G
G-BK
BK-BR
BR-BK

TL7
RL7
DTL7
DRL7

TO DSS
CONSOLE #4

MODULAR
STATION CORD

DIGITAL DSS
CONSOLE #1

NOT
USED
34
9
35
10
NOT
USED
38
13
39
14
NOT
USED

FIGURE 4-50
DIGITAL DSS CONSOLE CONNECTION FOR PERCEPTIONex "U" SLOTS AND PERCEPTIONe "L" SLOTS

4-38

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
commands, communications software or
some program that performs “terminal
emulation” must be loaded in the computer. The AT commands cannot be issued
from the computer’s operating system
prompt.

The PDIU-DI/PDIU-DS Data Units require ten signals for some applications, but can function with
eight, using modular cords and connectors with
RJ45/DB25 adapters for other applications (Figures 4-52 and 4-53). If uncertain which signals are
necessary for an application, all ten should be
connected.

6.100 Common DIU Connections

IMPORTANT NOTES!
1. The PDIU-DI is always a DCE device;
the PDIU-DS may be a DTE or DCE,
depending on how its internal jumpers
(1 ~ 9) are configured (see Figure 4-54).
2. In the descriptions below, when a signal is ON, its potential is about seven
volts positive, relative to signal ground
(pin 7); when a signal is OFF, it is about
7 volts negative, relative to the signal
ground (pin 7).

6.101 The block diagram in Figure 4-51 illustrates
common DIU connections. In this example, PDIUDIs are connected to laptop personal computers
(PC1 and PC2), and the PDIU-DS’s are connected
to a serial printer and modems. The PC users can
transfer files internally, print files on the same
printer, and access the modem to send/receive
data to/from an external personal computer, or dial
up a data service.
6.102 To access these devices, a data call connection must be established between the DIUs. This is
accomplished by dialing the destination DIU from a
digital telephone dialpad or from a PC keyboard
using standard AT dial commands. PDIU-DIs have
port and DATA DN assignments adjacent to the
digital telephones that they are connected to, while
PDIU-DS’s have separate port and DATA DN assignments. The DN and DATA buttons on the
digital telephone tell the system whether a voice or
data call is being made: The DN button indicates
voice calls, and the DATA button indicates data
calls. When dialing from a keyboard with AT commands, enter ATD for data calls. Only DATA calls
can be made through keyboard dialing.

• Frame Ground (FG, Pin 1): The FG

signal (EIA circuit AA) is a protective or
safety ground which is bonded to the
PDIU-DI/PDIU-DS. If required by local
codes, the FG may be connected to
external ground.
• Transmit Data (TD, Pin 2): DTE devices
transmit, and DCE devices receive data
on the TD lead (EIA circuit BA). Before
the DTE device can transmit the TD
signal, the RTS, CTS, DSR, and DTR
signals (all discussed later in this section) must be ON. The TD signal is OFF
in the idle state.
• Receive Data (RD, Pin 3): The DCE
device transmits data to the DTE device
on the RD lead (EIA circuit BB).
• Request to Send (RTS, Pin 4): Some
DTE devices send an RTS signal (EIA
circuit CA) to the DCE device when they
are ready to transmit data on the TD
lead. If the DTE device generates the
RTS signal, the DIU DIP switch SW1-4
should be set to ON to inform the PDIU.
Sometimes, the DTE/DCE device may
use RTS/CTS for Ready/Busy-type flow
control. In these cases, DIP switch SW14 should be set to OFF (see Figure 4-55
for the DIP switch information).
FIGURE 4-52—PDIU-DI/PDIU-DS MODULAR CABLE/

6.103 Installation instructions for these devices are
provided in Paragraphs 6.140 ~ 6.160. Call paths
and scenarios for four types of data calls are
provided in Paragraphs 6.181 ~ 6.185. Step-bystep data calling procedures are provided in the
PDIU User Guide.
6.110 EIA Interface Leads (Signals)
6.111 Both DIUs operate with the ten standard EIA
RS-232 interface leads (signals) on which signaling data is transmitted and received. DIUs connect
to serial data devices’ signals with standard RS232 cables, available from telephone supply stores.

4-39

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

LAPTOP, PC 1
PERCEPTIONe&ex
MDF2

2. PDIU-DI/PDIU-DS MDF
station wiring to NDKU is in
Section 200-255-205.

RS-232

TOSHIBA

PAGE

DKT/PDIU-DI

SCRL

MODE

NDKU

MESSAGE

2 ABC 3 DEF

3. Modem MDF station wiring to
NSTU is in Section 200-255205.

VOLUME

4 GHI 5 JKL 6 MNO
MIC

TRNS/CONF

REDIAL

7 PRS 8 TUV 9 WXY

SPEAKER

0OPER

HOLD

NOTES:
1. RS-232 cable and connector
information is provided in
Figures 4-53 to 4-54.

LAPTOP, PC 2
DIAL-UP
COMPUTER
SERVICE

MDF2

RS-2321

TOSHIBA

PAGE

DKT/PDIU-DI

SCRL

MODE

2 ABC 3 DEF

NDKU

MESSAGE

VOLUME

4 GHI 5 JKL 6 MNO
MIC

SPEAKER

PRS

TUV

0OPER

WXY

TRNS/CONF

REDIAL

HOLD

SERIAL
PRINTER

MDF2

TOSHIBA

TELEPHONE
LINE X

NDKU

RS-2321
DIU
POWER

TOSHIBA
READY

PDIU-DS

RS-2321

LINE Z

CONNECT

MODEM

MDF

MDF3
NSTU

NCOU

MODEM

PUBLIC
TELEPHONE
NETWORK

NDKU

RS-2321
DIU
POWER

TOSHIBA
READY

PDIU-DS

CONNECT

TELEPHONE
LINE Y

MDF3
NSTU

MODEM

MODEM 1

NDKU

RS-2321
DIU
POWER

TOSHIBA
READY

PDIU-DS

CONNECT

LAPTOP,
PC 3

FIGURE 4-51—PERCEPTION DATA INSTALLATION EXAMPLE BLOCK DIAGRAM

4-40

STANDARD
TELEPHONE
RS-2321

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
CONNECTION EXAMPLE 1
DIGITAL TELEPHONE

TOSHIBA LAPTOP OR IBM AT TYPE
PERSONAL COMPUTER (PC)

PDIU-DI BASE

TYPE 1 MODULAR ADAPTER

TYPE B MODULAR CORD (CROSSED)1
(50 ft max, 24AWG)
1

TYPE 2 MODULAR ADAPTER

IMPORTANT!
Will not function with applications that require the Ring Indicator signal to PC.
CONNECTION EXAMPLE 2
IBM PC OR XT TYPE
PERSONAL COMPUTER (PC)

DIGITAL TELEPHONE

PDIU-DI BASE

TYPE 3 MODULAR ADAPTER

TYPE A MODULAR CORD (STRAIGHT)
(50 ft max, 24AWG)
1

TYPE 2 MODULAR ADAPTER

IMPORTANT!
Will not function with applications that require the Ring Indicator signal to PC.
CONNECTION EXAMPLE 3
TOSHIBA P321SL OR SIMILAR
STANDARD TYPE SERIAL PRINTER

STAND-ALONE DIU

PDIU-DS

TYPE 2 MODULAR ADAPTER
TYPE A MODULAR CORD1
(50 ft max, 24AWG)

TYPE 2 MODULAR ADAPTER

NOTES:
1. See Figure 4-53 for detailed pin out information of modular cords and adapters.
2. Never use modular cords and adapters when connecting a PDIU-DI/PDIU-DS to a modem.
3. Connection examples 1 and 2 work when using the PDIU-DI to make calls with personal computer
applications (printer sharing, outgoing modem calls, etc). If the PC PDIU-DI must receive calls, the RI
lead is normally required; therefore, a standard RS-232 cable must be used (see Figures 4-54 and 4-55).
4. In Connection example 3, PDIU-DS must be in the "connect to DTE mode" (P1 ~ P9, strapped A-B).
5. All modular cords and adapters are customer-supplied.

RJ-45 ADAPTER CONNECTIONS

4-41

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

TYPE 1
RJ45 TO DB9 (FEMALE) ADAPTER
8

8 7 6 5 4 3 2 1

N/C

RJ45
LEAD
NAME
DB9

DSR

RTS

DCD

GND

CTS

5 4 3 2 1
9 8 7 6

TYPE 2
RJ45 TO DB25 (MALE) ADAPTER
8 7 6 5 4 3 2 1

N/C

RJ45

CTS

DTR

DCD

RTS

DSR

LEAD
NAME
DB25

N/C

RJ45
LEAD
NAME
DB25

2 3 4 5 6 7 8
20

TYPE 3
RJ45 TO DB25 (FEMALE) ADAPTER
8 7 6 5 4 3 2 1

CTS

DTR

DCD

RTS

DSR

8 7 6 5 4 3 2
20

RJ45 STRAIGHT THROUGH

FRONT

TYPE A
RJ45 FLAT MODULAR
CORD (STRAIGHT)
1

FRONT

TYPE B
RJ45 FLAT MODULAR
CORD (CROSSED)

1
2
3
4
5
6
7
8

FRONT

RJ45 CROSS PINNING
1
2
3
4
5
6
7
8

1
8
Modular Cords (50 ft max, 24AWG; customer supplied)

1
2
3
4
5
6
7
8

FRONT

FIGURE 4-53—PDIU-DI/PDIU-DS MODULAR CORDS AND RJ-45/RS-232 ADAPTER PIN CONNECTIONS

4-42

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
PDIU-DS (REAR VIEW)

PDIU-DS (FRONT VIEW)

MODULAR JACK
FOR CONNECTING
1- OR 2-PAIR
TO NDKU CIRCUIT

DIU
READY

CONNECT
1234
DATA

POWER

CONNECT LED
READY LED
POWER LED

SW1: SEE FIGURE 4-55 FOR
SWITCH (1 ~ 4) OPTIONS
INFORMATION

B-C

A-B

MODEM

DTE

CTS
DSR
SG
DCD
13 12 11 10 9

RTS
RD
TD
FG
8

ABC

25 24 23 22 21 20 19 18 17 16 15 14

RI
DTR

P1 ~ P9 LOCATED ON PCB INSIDE
OF PDIU-DS UNIT (SEE NOTES)

RS-232, DB25
(FEMALE) CONNECTOR

SIGNAL DIRECTION AND FUNCTION OF P1 ~ P9
PDIU-DS CONNECTED TO DTE

SIGNAL
ABBREVIATON

SIGNAL NAME/
FUNCTION

PDIU-DS
PIN NO.

SIGNAL
DIRECTION

FUNCTION:
A-B
(DTE MODE)

PDIU-DS CONNECTED TO DCE

SIGNAL
DIRECTION

FUNCTION:
B-C
(MODEM MODE)

FRAME GROUND

SIGNAL GROUND

TRANSMIT DATA

DTE

DIU

MODEM

DIU

RECEIVE DATA

DTE

DIU

MODEM

DIU

RTS

REQUEST TO SEND

DTE

DIU

MODEM

DIU

CTS

CLEAR TO SEND

DTE

DIU

P7/P5

MODEM

DIU

P7/P5

DSR

DATA SET READY

DTE

DIU

MODEM

DIU

DTR

DATA TERMINAL READY

DTE

DIU

MODEM

DIU

DCD

DATA CARRIER DETECT

DTE

DIU

MODEM

DIU

RING INDICATOR

DTE

DIU

MODEM

DIU

NOTES:
1. Mode select (P1 ~ P9) “A-B” if PDIU-DS is connected to a terminal-type device (DTE).
2. Mode select (P1 ~ P9) “B-C” if PDIU-DS is connected to a modem-type device (DCE).
3. See Figure 4-61 to disassemble/assemble PDIU-DI.
4. Some RS-232 leads go by different names depending on the equipment manufacturer.

FIGURE 4-54—PDIU-DS JUMPER PLUG OPTIONS/RS-232 CONNECTOR INFORMATION

4-43

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

OFF

DIP SWITCH
ACCESS FROM BOTTOM
— OUTSIDE OF PDIU-DI
1234

PDIU-DI (BOTTOM VIEW)

DIP SWITCH SWI BACK VIEW
(ACCESS FROM BACK
— OUTSIDE OF PDIU-DS)

1234
DATA

PDIU-DS (REAR VIEW)

DIRECTORY TRAY:
REMOVE FROM ORIGINAL
TELEPHONE BASE AND
INSTALL ON PDIU-DI BASE

DB25 CONNECTOR (FEMALE)
FOR DTE OR DCE RS-232
CABLE CONNECTION

MODULAR
CONNECTOR
FOR NDKU LINE
CONNECTION

PDIU-DI DIGITAL TELEPHONE BASE

PDIU-DI AND -DS SW1 DIP SWITCH (1 ~ 4) FUNCTIONS

SWITCH

FUNCTION

INITIAL
POSITION

SW1
(1)

Forced hang up when DIU does not
detect space signal on TD or RD for
about 9 minutes
ON: enable (auto-disconnect)
OFF: disable

OFF

SW1
(2)

DCD, DSR control
ON: continuous on
OFF: DSR depends on DTR
(DCD is on during
communication state)

OFF

SW1
(3)

RI control
ON: RI is on continuously during
ringing state
OFF: RI is 1 sec ON/3 sec OFF
during ringing state

OFF

SW1
(4)

RTS control
ON: DTE doesn't have RTS signal
OFF: DTE has RTS signal (ready/busy
flow control: RTS/CTS:DCD)

OFF

FIGURE 4-55—PDIU-DI/PDIU-DS SW1 DIP SWITCH INFORMATION

4-44

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
• Clear to Send (CTS, Pin 5): The DCE

communication state only. SW1-2 is set
to OFF when the DTE/DCE uses the
DTR/DSR signals for Ready/Busy flow
control (see Figure 4-55 for the DIP switch
information).
• Data Terminal Ready (DTR, Pin 20):
The DTE device sends the DTR signal
(EIA circuit CD) to the DCE device,
prompting the DCE device to open the
communication line. The line is closed
and the call disconnected when the DTE
device quits sending the DTR signal.
DTR may be sent any time to indicate
that the DTE is ready to transmit or receive data. Sometimes, DTE/DCE devices use DTR/DSR for Ready/Busy flow
control; in these cases, DIP switch SW12 should be set to OFF (see Figure 4-55
for the DIP switch information).
• Ring Indicator (R1, Pin 22): The RI
signal (EIA circuit CE) is sent by the DCE
device to the DTE device. Whenever the
DCE device receives a ringing signal on
the line side, it turns the RI signal on. If
PDIU DIP switch SW1-3 is set to ON, the
RI signal will be on continuously; if the
switch is set to OFF, the RI signal will be
one second on/three seconds off.

device sends the CTS signal (EIA circuit
CB) which indicates that it is prepared to
transmit data to the DTE device. The
DCE device sends this signal, only when
it receives the RTS signal from the DTE
device. Sometimes, the DTE/DCE device may use RTS/CTS for Ready/Busytype flow control; in these cases, dip
switch SW1-4 should be set to OFF (see
Figure 4-55 for the DIP switch information).
• Data Set Ready (DSR, Pin 6): When
connected to the communication channel and prepared to exchange control
characters to initiate data transmission,
the DCE device sends the DSR signal
(EIA circuit CC) to the DTE device. If the
PDIU DIP switch SW1-1 is set to OFF,
DSR and DCD (see DCD description
below) will be ON continuously; if the
switch is set to ON, the PDIU generates
DSR only after receiving the DTR signal.
Sometimes, DTE/DCE devices use DTR/
DSR for Ready/Busy flow control; in these
cases, DIP switch SW1-2 should be set
to OFF (see Figure 4-55 for the DIP
switch information).
• Signal Ground (SG, Pin 7): The SG
signal (EIA circuit AB) establishes the
common ground reference for all other
PDIU and data device signals, and must
be wired for all applications.
• Data Carrier Detect (DCD, Pin 8): The
DCE device sends the DCD signal (DCD,
Pin 8) when receiving the carrier signal
on the line side. Before transmitting or
receiving data, most DTE devices require that the DCD be ON. If the carrier
signal is removed by the remote end or
lost due to a fault condition on the line,
the DCE notifies the DTE device by an
OFF condition with the DCD signal. To
set the DCD on continuously, PDIU DIP
switch SW1-2 is set to ON; if set to OFF,
the DCD signal will be on during the

Pin No.
1
2
3
4

FG
SD
RD
RTS

5
6
7
8

CTS
DSR
SG
RCD

Designation
Protective Ground/Frame
Transmitted Data (to PDIU)
Receive Data (from PDIU)
Request to Send (to PDIU)

Clear to Send (from PDIU)
Data Set Ready (from PDIU)
Signal Ground/Common Return
Receive Carrier Detect (from PDIU)
15 ST2 Transmission Signal Element Timing
(from PDIU)
Transmission Signal Element Timing
(from PDIU)
20 DTR Data Terminal Ready/Equipment
Ready (to PDIU)
22 CI Ring Indicator (from PDIU)
17

4-45

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
PDIU is receiving an incoming call. SW1-3 should
be set to ON for the DCE to send RI continuously,
and OFF to send at one-second-ON/three-seconds-OFF intervals. Consult the DTE/DCE device or application software documentation to
determine which type of flow control is required.
• SW1-4: This switch is placed in the ON position
if the computer does not output the RTS signal.
Sometimes, the computer may use RTS/CTS for
Ready/Busy flow control; in these cases, SW1-4
should be OFF. Consult the DTE/DCE device or
application software documentation to determine which type of flow control is required.

6.120 DIP Switch Options
6.121 Each of the PDIU-DI and the PDIU-DS data
units has a four-control DIP switch which can be
configured for signaling options. The switch is
located on the bottom of the PDIU-DI, and on the
back panel of the PDIU-DS (see Figure 4-55).
• SW1-1: Normally, this switch is set to OFF.
When set to ON, it automatically disconnects
devices from the PDIUs if no data is exchanged
between the devices and PDIU for an interval of
eight to nine minutes.
• SW1-2: This switch is placed in the ON position
when the PDIU-DI (or PDIU-DS configured like a
DCE) must hold DCD and DSR on continuously.
Sometimes, a computer may use DTR/DSR for
Ready/Busy flow control; in these cases, this
switch should be OFF. Consult the DTE/DCE
device or application software documentation to
determine which type of flow control is required.
• SW1-3: The PDIU-DI (or PDIU-DS configured as
a DCE) sends the Ring Indicate signal (RI) to the
computer to tell the computer (DTE) that the

6.130 PDIU-DI INSTALLATION
6.131 The PDIU-DI (Figure 4-56) mounts directly
on the bottom of a digital telephone (forming a
single unit) as follows:
1) Remove the digital telephone base (see Paragraph 6.12).
2) Replace the telephone base with the PDIU-DI.

-2

DIU STRAP:
1020H: W302
1020SD: W401

DVSU
HHEU

DIU

PDIU
D

PDIU/
DVSU

TO P1 OF
BOTTOM
PCB

RS-232 (FEMALE)
DB-25 CONNECTOR

RED
WIRE

DIGITAL TELEPHONE
TOP ASSEMBLY
TO P2 OF
BOTTOM
PCB

RED
WIRE

PDIU-DI PCB

IMPORTANT: DO NOT CONNECT DIU
CABLES TO HHEU CONNECTOR

DIRECTORY
TRAY
PDIU-DI
DIGITAL TELEPHONE BASE

FIGURE 4-56—PDIU-DI PCB/DIGITAL TELEPHONE INSTALLATION

4-46

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
NOTE:
A digital telephone with a PDIU-DI attached
cannot be wall-mounted.

for correct RS-232 pin requirements; requirements vary with each manufacturer.
The number of EIA RS-232 signals required (8, 9, or 10 wires) will depend on
the application. When EIA signal requirements are not known, connect the 10 EIA
signals listed in Paragraph 6.110. Figures 4-57, 4-58, and 4-59 provide diagrams for connecting RS-232 cables between PDIU-DIs and a Toshiba printer
and laptop computer, IBM XT-type and
AT-type personal computers.

6.140 PDIU-DI to Personal Computer (PC)
Installation
6.141 The PDIU-DI always functions as a DCE
device; it transmits data on the Receive Data lead
(RD) and receives data on the Transmit Data lead
(TD). Most personal computers function as DTE
devices; PCs transmit data on the TD lead and
receive data on the RD lead. Follow the steps below
to install the PDIU-DI to a DTE or DCE PC:

4) Set the PDIU-DI/PDIU-DS DIP switch (SW11 ~ 4) for the desired application. Figure 4-55
shows the DIP switch locations and Paragraph 6.120 describes the switch functions.

NOTES:
1. Use the steps below when installing an
ASCII terminal, or any other DTE device to
a PDIU-DI.
2. The PDIU-DI can connect to a DCE computer or any other DCE-type device using
a specially configured RS-232 cable or
adapter; however, this application is rarely
required.

5) Access the DEKT and DDIU Programs for
PDIU port connection and data button assignments.
• The port number entered for the PDIU-DI
in the DDIU Program is the adjacent port
number of the digital telephone.

1) Install the digital telephone that is to be
equipped with PDIU-DI in accordance with the
instructions in Section 200-255-205, MDF
Arrangement, Paragraph 1.01 and in Figure
5-2.

Example: DKT port number = L024, PDIUDI port number = L034

IMPORTANT NOTE!
The eighth port (circuit) of the NDKU cannot be used for data switching connections (PDIU-DI or PDIU-DS).

2) Install the PDIU-DI in the digital telephone’s
base in accordance with the instructions in
Paragraph 6.130.

6.150 PDIU-DS To Printer Installation

NOTE:
The PDIU-DI operates only as a DCE device;
therefore, unlike the PDIU-DS, it has no internal jumpers.

6.151 PERCEPTIONe&ex enables serial printers
(laser, dot matrix, or other types) to be connected
to stand-alone data interface units (PDIU-DS). Digital telephones equipped with PDIU-DI and Electronic Telephones equipped with DDIU-MAT can
share access to these printers. Serial printers operate as DCE or DTE devices, depending on the
vendor. The PDIU-DS can be connected to either
type, since it can be configured as a DTE or DCE
device. (The PDIU-DS comes from the factory
configured as a DCE device.) Follow the steps
below to install the PDIU-DS to a serial printer.

3) Connect the appropriate RS-232 cable between the PDIU-DI DB-25 female connector
and the PC’s appropriate asynchronous serial
communications port connector.

IMPORTANT NOTE!
Check the PC manufacturer’s serial communication port interface documentation

4-47

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

PDIU-DS
(CONFIGURED IN THE "CONNECT TO DTE" MODE:
P1 ~ P9 = A-B SO PDIU FUNCTIONS LIKE A DCE)

TOSHIBA PS321SL PRINTER
(FUNCTIONS LIKE A DTE)
DB25 PIN DESIGNATIONS
PRINTER
PIN #
NAME

FG TD RD RTS

N/C

Rear view of printer
or ASCII terminal DB25,
RS-232 connector.

DSR SG DCD DTR

PDIU-DS
PIN #

NAME

FG TD RD RTS CTS DSR SG DCD DTR

4 3 2 1

20
8 7 6 5 4 3 2 1

DB25
PIN #

NAME

DB25
PIN #

DCD

DTR

DSR

RTS

N/C

CTS

N/C

DB25 MALE
CONNECTOR

RS-232 CABLE

(50 ft max, 24 AWG;
customer supplied).

NOTES:
1. The printer receives data on pin 3 (RD) and transmits data on pin 2 (TD).
2. The PDIU-DS should be in the connect to DTE mode (P1 ~ P9 are strapped A-B),
so that it transmits data on pin 3 (RD) and receives data on pin 2 (TD).

FIGURE 4-57—PDIU-DS TO TOSHIBA PRINTER, RS-232 CONNECTOR/CABLE CONNECTIONS

4-48

22
RI

DB25 FEMALE
CONNECTOR

8 7 6 5 4 3 2 1

DB25 MALE
CONNECTOR

Rear view of PDIU-DI DB25,
RS-232 female connector

DB25 FEMALE
CONNECTOR

8 7 6
22

DB25 PIN DESIGNATIONS

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
PDIU-DI
(FUNCTIONS LIKE A DCE)

IBM XT PERSONAL COMPUTER
OR ASCII TERMINAL
(FUNCTIONS LIKE A DTE)
DB25 PIN DESIGNATIONS
PDIU-DI
PIN #
NAME

DB25 PIN DESIGNATIONS
20

FG TD RD RTS CTS DSR SG DCD DTR

Rear view of personal computer
or ASCII terminal DB25,
RS-232 connector

PDIU-DI
PIN #

NAME

DB25 MALE
CONNECTOR

FG TD RD RTS CTS DSR SG DCD DTR

Rear view of PDIU-DI DB25,
RS-232 female connector

1 2 3 4 5 6 7 8

8 7 6 5 4 3 2 1

DB25
PIN #

NAME

DB25
PIN #

DCD

DTR

DSR

RTS

CTS

DB25 MALE
CONNECTOR

RS-232 CABLE

IBM PC XT modem style (serial)
DB25 to DB25 (M/F) RS-232
cable (50 ft max, 24 AWG,
customer supplied).

NOTE:
The PC/ASCII terminal receives data on pin 3 (RD) and transmits data on pin 2 (TD).

FIGURE 4-58—PDIU-DI TO IBM XT-TYPE COMPUTER, RS-232 CONNECTOR/CABLE CONNECTIONS

4-49

DB25 FEMALE
CONNECTOR

8 7 6 5 4 3 2 1

1 2 3 4 5 6 7 8

DB25 FEMALE
CONNECTOR

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
PDIU-DI
(FUNCTIONS LIKE A DCE)

TOSHIBA LAPTOP OR IBM AT-TYPE
PERSONAL COMPUTER (DTE)
PIN DESIGNATIONS
COM PORT
PIN #
NAME

PIN DESIGNATIONS
7

PDIU-DI
PIN #

DCD RD TD DTR SG DSR RTS CTS RI

NAME

FG TD RD RTS CTS DSR SG DCD DTR

Rear view of asynchronous (serial)
communication interface connector (DB9) of
Toshiba laptop or IBM AT personal computer

22
RI

Rear view of PDIU-DI DB25,
RS-232 female connector
8 7 6 5 4 3 2 1

1 2 3 4 5
6 7 8 9

6 7 8 9
1 2 3 4 5

DB9
MALE
CONNECTOR

DB25
FEMALE
CONNECTOR
DB25
MALE
CONNECTOR

20
8 7 6 5 4 3 2 1

DB9
FEMALE
CONNECTOR
DB9
PIN #

NAME

DB25
PIN #

DCD

DTR

DSR

RTS

CTS

IBM PC AT modem style (serial)
DB25 to DB9, RS-232 cable.
Pin to pin connections are
configured as a straight cable,
not as a null modem cable
(50 ft max, 24AWG;
customer supplied).

NOTES:
1. Some RS-232 EIA leads may be called by other names by some manufacturers.
2. The computer receives data on pin 2 (RD) and sends data on pin 3 (TD).

FIGURE 4-59—PDIU-DI TO IBM AT-TYPE COMPUTER, RS-232 CONNECTOR/CABLE CONNECTIONS

4-50

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
NOTES:
1. Only serial printers that conform to EIA
RS-232 signaling requirements can be
connected to PDIU-DS units.
2. In rare applications, printers can be connected to PDIU-DIs. Refer to the printer’s
installation instructions.

4) If steps 2 and 3 are properly done, the POWER
and READY LEDs on the PDIU-DS should
light when the printer is turned on.

IMPORTANT NOTE!
Check the printer’s serial documentation
for correct RS-232 pin requirements. The
requirements vary with each manufacturer.

1) Consult the serial printer’s documentation,
and determine if the printer operates as a DCE
or DTE device:
• As a DCE device:
a) Disassemble the PDIU-DS, and configure it to operate like a DTE device
by placing the jumper plugs P1 ~ P9
in the “B-C” (MODEM) position.
b) Reassemble the PDIU-DS, and mark
“B-C” on the bottom identification label for future reference. (Paragraph
6.170 provides PDIU-DS disassembly/assembly instructions, and Figure 4-54 provides jumper plug information).

5) Refer to the DDIU Program for PDIU-DS data
assignments.

IMPORTANT NOTE!
The eighth port (circuit) of the NDKU cannot be used for data switching connection
(PDIU-DI or PDIU-DS).
6.160 PDIU-DS To Modem Installation
6.161 With D.04 software, PERCEPTIONe&ex
enables asynchronous-type (not synchronous)
modems to be connected to PDIU-DS’s. This allows PDIU-DI-equipped digital telephones that are
connected to PCs, terminals, and other devices to
share access to a modem.

• As a DTE device:

It may not be necessary to disassemble
the PDIU-DS, since it comes direct from
the factory configured as a DCE device.
However, if uncertain,
a) Disassemble the PDIU-DS, and verify
that jumper plugs P1 ~ P9 are in the
“A-B” (DTE) position for DTE operation.
b) Reassemble the PDIU-DS and mark
“A-B” on the bottom identification label for future reference. (Paragraph
6.170 provides PDIU-DS disassembly/assembly instructions, and Figure 4-54 provides jumper plug information).

6.162 Modems can be accessed internally for outgoing data calls or externally for incoming data
calls. Modems operate as DCE devices, so the
PDIU-DS must be configured to operate like DTE
devices. The installation example in Figure 4-51
shows that two modems are connected to NSTU
ports; however, the line side of modems can be
directly connected to a dedicated CO line. The
modem connects to the PDIU-DS with a standard
RS-232 connector; the PDIU-DS line side (RJ-11
connector) always connects to its own individual
NDKU port. Use the following instructions to connect modems to PDIU-DS’s.
1) Configure the PDIU-DS as a DTE device:
a) Disassemble the PDIU-DS, and place
jumper plugs P1 ~ P9 in the “B-C” position
(MODEM).
b) Reassemble the PDIU-DS, and mark “B-C”
on the bottom identification label for future
reference (Paragraph 6.170 provides

2) Connect the PDIU-DS to the appropriate NDKU
circuit in accordance with the wiring diagrams
in Section 200-255-205.
3) Connect the appropriate RS-232 cable between the printer and the PDIU-DS.

4-51

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
PDIU-DS disassembly/assembly instructions, and Figure 4-54 provides jumper
plug information).

panel to the rest of the unit. These screws are
not captive, so place them together where
they can be easily accessed.
2) Remove the bottom panel.

2) Connect the PDIU-DS to the appropriate NDKU
circuit in accordance with the wiring diagrams
in Section 200-255-205.

3) Remove the PCB by lifting the back panel from
its side grooves.

3) Connect the appropriate RS-232 cable between the modem and the PDIU-DS. Figure
4-60 shows an example of PDIU-DS to a
Hayes modem RS-232 connection.

4) Turn the PCB over and set jumper plugs P1 ~
P9 as follows:
• If the PDIU-DS is connected to a DTE,
set the plugs to the “A-B” position.
• If the PDIU-DS is connected to a DCE
device, set the plugs to the “B-C” position.

IMPORTANT NOTE!
All ten PDIU-DS EIA leads (signals) should
be connected to the modem. Consult the
modem’s documentation for correct RS232 pin requirements. The requirements
may vary with each manufacturer.

6.173 Assembling the PDIU-DS
1) Position the back panel to the PCB.

4) Connect the line side of the modem to a NSTU
standard telephone circuit, or a dedicated CO
line (Consult the modem’s documentation to
connect it to a CO line). Section 200-255-205
provides NSTU station port wiring information.

2) Slide the back panel down into its side grooves.
3) Attach the bottom panel, and secure it with the
four noncaptive screws.
6.180 PDIU-DI/PDIU-DS Installation Tests

5) Refer to the DDIU Program for PDIU-DS
connection assignments.

6.181 Figures 4-62 ~ 4-65 provide tests for four
PDIU call applications. The telephone and port
numbers used in these figures are provided for
explanation purposes only. When actually testing,
use port and telephone numbers appropriate for
the system. Each of these tests can be conducted
with either manual dialing from a telephone dialpad,
or AT dialing from a personal computer keyboard;
however, only the preferred method of dialing for
the application is presented. The PDIU User Guide
has additional information on the tests, which are
listed below:
• Figure 4-62—PC to PC Test Call Using AT
Commands
• Figure 4-63—PC to Printer Test Call Using
Manual Dialing
• Figure 4-64—Internal PC to External PC Test
Call Using AT Commands
• Figure 4-65—External PC to Internal PC Test

IMPORTANT NOTE!
The eighth port (circuit) of the NDKU cannot be used for data switching connections (PDIU-DI or PDIU-DS).
6.170 PDIU-DS Disassembly and Assembly
6.171 To set the jumper plugs P1 ~ P9 on the subassembly inside the PDIU-DS for DCE or DTE
operation, the PDIU-DS must be disassembled
(Figure 4-61). Disassemble the PDIU-DS in accordance with the steps in Paragraph 6.172.
6.172 Disassembling the PDIU-DS
1) Remove the four screws securing the bottom

4-52

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
PDIU-DS
(CONFIGURED IN THE "CONNECT TO MODEM"
MODE, P1 ~ P9 = B-C, SO IT FUNCTIONS LIKE A DTE)

HAYES-TYPE SMART MODEM
(FUNCTIONS LIKE A DCE)

MODEM
PIN #
NAME

FG TD RD RTS CTS DSR SG DCD DTR

PDIU-DS
PIN #

22
RI

NAME

Rear view of modem DB25 connector

22
RI

Rear view of PDIU-DS DB25, connector
DB25 FEMALE
CONNECTOR

DB25 FEMALE
CONNECTOR

8 7 6 5 4 3 2 1

20
8 7 6 5 4 3 2 1

8 7 6 5 4 3 2 1

DB25 MALE
CONNECTOR

FG TD RD RTS CTS DSR SG DCD DTR

DB25
PIN #

NAME

DB25
PIN #

DCD

DTR

DSR

RTS

CTS

DB25 MALE
CONNECTOR

RS-232 CABLE

(50 ft max, 24 AWG;
customer supplied)

NOTES:
1. Modem receives data on pin 2 (TD) and transmits data on pin 3 (RD).
2. The PDIU-DS must be in the connect to modem mode (P1 ~ P9 strapped B-C) so that it transmits
data on pin 2 (TD) and receives data on pin 3 (RD).

FIGURE 4-60—PDIU-DS TO HAYES-TYPE SMART MODEM, RS-232 CONNECTOR/CABLE CONNECTIONS

4-53

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

SIDE
GROOVES

SW-1
DTE/MODEM
JUMPER PLUGS
P1~P9

PDIU-DS
PCB

BOTTOM
PANEL

FIGURE 4-61—PDIU-DS DISASSEMBLY/ASSEMBLY DIAGRAM

4-54

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

LAPTOP PC 1
LAPTOP PC

PERCEPTIONe&ex

MDF
RS-232

MDF

TOSHIBA

PAGE

MODE

DKT/PDIU-DI

SCRL

2 ABC 3 DEF

RS-232

NDKU

TOSHIBA

MESSAGE
PAGE

MODE

SCRL

VOLUME

4 GHI 5 JKL 6 MNO
MIC

TRNS/CONF

REDIAL

7 PRS 8 TUV 9 WXY

SPEAKER

0OPER

HOLD

2 ABC 3 DEF

DKT/PDIU-DI

NDKU

MESSAGE

VOLUME

4 GHI 5 JKL 6 MNO
MIC

SPEAKER

7 PRS 8 TUV 9 WXY

0OPER

TRNS/CONF

REDIAL

HOLD

SERIAL
PRINTER

LAPTOP PC 2

MDF
A

TOSHIB

MDF
RS-232

NDKU

RS-232

TOSHIBA

PAGE

MODE

DKT/PDIU-DI

SCRL

2 ABC 3 DEF

DIU
POWER

TOSHIBA
READY

CONNECT

NDKU

PDIU-DS

MESSAGE

VOLUME

4 GHI 5 JKL 6 MNO
MIC

SPEAKER

PRS

TUV

0OPER

WXY

TRNS/CONF

REDIAL

HOLD

FIGURE 4-62
PC TO PC TEST CALL USING AT COMMANDS

FIGURE 4-63
PC TO PRINTER TEST CALL USING MANUAL DIALING

PERCEPTIONe&ex
MDF

MDF
NSTU
INTERNAL
MODEM
NDKU

RS-232
DIU
POWER

TOSHIBA
READY

CONNECT

MDF

DKT/PDIU-DI

SCRL

MODE

2 ABC 3 DEF

MESSAGE

TELEPHONE
LINE

LAPTOP
PC 2

TOSHIBA

PAGE

PUBLIC
TELEPHONE
NETWORK

EXTERNAL
MODEM
(AUTO
ANSWER)

PDIU-DS

LAPTOP PC 1

RS-232

NCOU
TRUNK
CIRCUIT

NDKU

VOLUME

4 GHI 5 JKL 6 MNO
MIC

7 PRS 8 TUV 9 WXY

SPEAKER

0OPER

TRNS/CONF

REDIAL

HOLD

FIGURE 4-64—INTERNAL PC TO EXTERNAL PC TEST CALL USING AT COMMANDS

4-55

RS-232

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
PERCEPTIONe&ex
MDF

MDF
NSTU
INTERNAL
MODEM

TELEPHONE
LINE

NDKU

RS-232
DIU
POWER

PDIU-DS

CONNECT

RS-232

EXTERNAL
MODEM

TOSHIBA
READY

PUBLIC
TELEPHONE
NETWORK

NCOU
TRUNK
CIRCUIT

LAPTOP PC 1

MDF
RS-232

LAPTOP
PC 2

TOSHIBA

PAGE

DKT/PDIU-DI

SCRL

MODE

2 ABC 3 DEF

MESSAGE

NDKU

VOLUME

4 GHI 5 JKL 6 MNO
MIC

SPEAKER

7 PRS 8 TUV 9 WXY

0OPER

TRNS/CONF

REDIAL

HOLD

FIGURE 4-65—EXTERNAL PC TO INTERNAL PC TEST CALL USING AT COMMANDS
• PC 1 and PC 2 screens both display

Call Using AT Commands

“NO CARRIER.”
• The DATA LED on each DKT will be

6.182 PC to PC Test Call Using AT Commands

off.

1) Make sure that PC 1 and PC 2 are equipped
with a communication software package, and
that the communication parameters of each
PC and the communication software package
are set to the same values (data transmission
rate, flow control, etc.).

6.183 PC to Printer Test Call Using Manual
Dialing
1) Make sure that the PC is configured to print
data from its serial COM port (the PC COM
port is connected to DKT/PDIU-DI). This is
normally accomplished using the DOS and
MODE commands.

2) From either PC keyboard, type A T D X X X X
and press ENTER, where XXXX is the Data
Extension number. (AT commands must be
capital letters.)

2) Using the manufacturer’s documentation,
make sure that the communication parameters (data speed, data bits, etc.) of the PC
COM port match the printer’s serial interface
parameters.

3) To terminate the call:
a) Type + + + from either PC keyboard.
• The PC screen displays “OK.”
b) Type A T H from the PC keyboard used
in step 3a.

3) To connect the PC to the printer, press the

4-56

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
• The external modem rings and auto an-

DKT’s DATA button and dial X X X, where
XXX is the Data Extension number.
• The CONNECT LED on the PDIU-DS will
light.
• The connection between the PC and the
printer is complete.
• If busy tone is sent to the DKT, the
connection is not complete. Try step 3
again.

swers, the modems handshake and establish communications.
• If the external modem sends result codes,
the screen on PC 1 displays “CONNECT
XXXX,” where XXXX is the data transmission speed set by the communication
software.
• At this time PC 1 and PC 2 are connected, and can exchange data (file transfers, type messages, etc.).

4) Operate the PC to print data as required.
5) To terminate the call, press the DKT’s DRS
button.

4) To terminate the call:
a) Type + + + from either PC keyboard.
• The PC screen displays “OK.”
b) Type A T H from the PC keyboard used
in step 5a.
• PC 1 and PC 2 screens both display
“NO CARRIER.”
• The DATA LEDs on each DKT will go
out.

6.184 Internal PC to External PC Test Call Using
AT Commands
1) Make sure PC 1 and PC 2 are equipped with
a communication software package, and that
the communication parameters of each PC
and communication software package are set
to the same values (data transmission rate,
flow control, etc.).

6.185 External PC to Internal PC Test Call Using
AT Commands

2) From PC 1’s keyboard, type A T D X X X X and
press ENTER, where XXXX is Data Extension number. (AT commands must be capital
letters.)
• The DATA LED on the DKT will light.
• The CONNECT LED on the PDIU-DS will
light.
• The screen on PC 1 displays “CONNECT XXXX,” where XXXX is the data
transmission speed set by the communication software.
• At this time, PC 1 and the PDIU-DS are
connected.

1) Make sure PC 1 and PC 2 are equipped with
a communication software package, and that
the communication parameters of each PC
and communication software package are set
to the same values (data transmission rate,
flow control, etc.).
2) From PC 2’s keyboard, type A T D X X X X X
X X and press ENTER, where XXXXXXX is
telephone number.
• The external modem originates the call.
• Trunk rings incoming call to the internal
modem.
• The internal modem rings and auto answers, the modems handshake and establish communications.
• If the internal modem sends result codes,
PC 2’s screen displays “CONNECT
XXXX,” where XXXX is the data transmission speed set by the communication
software.

3) From PC 1’s keyboard, type A T D T X X X X
X X X X X X and press ENTER, where
XXXXXXXXXXX is the trunk access code and
modem telephone number.
• The internal modem goes off-hook, dials
the access code to seize the trunk, and
then dials the external modem’s telephone number.

4-57

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
• At this time, PC 2 is connected to the

8.10 Connections from the telephone company
jack (RJ21X for CO/FX/WATS/DID trunks and
RJ2EX for E & M TIE trunk) should be terminated
on a 66-block, and then cross-connected to the

PDIU-DS.
3) From PC 2’s keyboard, type A T D X X X X and
press ENTER, where XXXX is the Data Extension number. (AT commands must be capital letters.) This prompts the PDIU-DS to dial
and connect to the PDIU-DI.
• The CONNECT LED on the PDIU-DS
will light, the DATA LED on the DKT
will also light.
• The screens on PC 1 and PC 2 display “CONNECT XXXX,” where XXXX
is the data transmission speed set by
the communication software.
• At this time PC 1 and PC 2 are connected and they exchange data (file
transfers, typed messages, etc.).

DESIGNATOR
T
R
T1
R1
E
SG
M
SB

FUNCTION
Tip
Ring
Tip 1
Ring 1
E
Sig. Gnd.
M
Sig. Bat.

TRUNK TYPE
CO, DID, TIE
CO, DID, TIE
TIE (4-wire)
TIE (4-wire)
TIE
TIE (Type II)
TIE
TIE (Type II)

appropriate leads on the CO portion of the MDF,
using the Tables 5-7, 5-8, and 5-13 ~ 5-15 as
guides. Connection requirements for each type of
trunk are shown below.

4) To terminate the call:
a) Type + + + from either PC keyboard.
• The PC screen displays “OK.”
b) Type A T H from the PC keyboard used
in step 5a.
• PC 1’s and PC 2’s screens both
display “NO CARRIER.”
• The DATA LED on each DKT will go
out.

9. PERIPHERAL EQUIPMENT INSTALLATION
9.00 Modem Pooling Connections (DDIU-MA
only)
9.01 See the NMDM Program in Section 200255-300, Programming, to input information concerning Modem Pooling for the DDIU-MA only.

7. STANDARD TELEPHONE EQUIPMENT
INSTALLATION

9.02 Most modems require only single-pair wiring
and are connected to the MDF via standard twistedpair telephone cables. However, some modems
may require a two-pair connection (one for transmit—one for receive). For this type of connection, use the next wire pair (which is not normally used). Modem Pooling Connection details are shown in Figure 4-67.

7.00 Standard Telephone Connections
7.01 See the DSTT Program in Section 200-255300, Programming, for instructions on programming standard telephones. The system must be
told at which ports standard telephones are installed.

IMPORTANT!
All connections to DDIUs (-MA or -MAT)
must observe correct tip and ring polarity for proper operation.

7.02 Standard telephones require single-pair wire
and are connected to the MDF via standard twistedpair telephone cables.

9.10 Power Failure/Emergency Transfer
7.03 Standard telephone connection details are
shown in Figure 4-66.

9.11 One DPFT can be installed in a twocabinet system. Install the DPFT as follows:

8. TRUNK CONNECTIONS
1) Mount the DPFT near the MDF.

4-58

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

500/2500-TYPE
CROSS-CONNECT
TELEPHONE #1
BLOCK
RJ11
BLOCK

NMDU PCB

T
CKT
1

TL1

CKT
2

TL2

CKT
3

RL1

RL2
TL3
RL3
TL4

CKT
4

RL4
TL5

CKT
5

RL5
TL6

CKT
6

RL6
TL7

CKT
7

TL8

CKT
8

RL8

RL7

(W-BL)

TL1

(BL-W)

RL1

(W-G)

TL2

(G-W)

RL2

(W-S)

TL3

(S-W)

RL3

(R-O)

TL4

(O-R)

RL4

(R-BR)

TL5

(BR-R)

RL5

(BK-BL)

TL6

(BL-BK)

RL6

(BK-G)

TL7

(G-BK)

RL7

(BK-S)

TL8

(S-BK)

RL8

G
B

R
Y

TO TELEPHONE #2

TO TELEPHONE #3

TO TELEPHONE #4

TO TELEPHONE #5

TO TELEPHONE #6

TO TELEPHONE #7

TO TELEPHONE #8

25-PAIR CABLE
"J" CABLE CONNECTOR PINS

FIGURE 4-66—STANDARD TELEPHONE CONNECTION

4-59

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
NMDU PCB
TL1

CKT
1

RL1
TL2

CKT
2

RL2
TL3

CKT
3

RL3
TL4

CKT
4

RL4
TL5

CKT
5

RL5
TL6

CKT
6

RL6
TL7

CKT
7

TL8
RL7

CKT
8

RL8

CROSS-CONNECT BLOCK
26

(W-BL)

RJ11
BLOCK
TL1

(BL-W)

RL1

(W-G)

TL2

(G-W)

RL2

(W-S)

TL3

(S-W)

RL3

(R-O)

TL4

(O-R)

RL4

(R-BR)

TL5

(BR-R)

RL5

(BK-BL)

TL6

(BL-BK)

RL6

(BK-G)

TL7

(G-BK)

RL7

(BK-S)

TL8

(S-BK)

RL8

"J" CABLE
CONNECTOR PINS

*
*
*

DDIU-MA

*
R
Y

G
B

TOSHIBA

TO
DDIU #2

RS-232C

TO
DDIU #3

MODEM

TO
DDIU #4
G
B

R
Y

T
R

TO
MODEM #2
TO
MODEM #3

* CORRECT
TO
MODEM #4

POLARITY

25-PAIR CABLE

FIGURE 4-67—MODEM POOLING CONNECTION (DDIU-MA ONLY)
2) Using 25-pair cables with amphenol-type
connectors (female for J1, male for J2),
connect the DPFT to two 66-type crossconnect blocks.

5) At the MDF, connect the DPFT to the system
as follows:
PERCEPTIONe
DPFT J1 (trunk) = LCEC/NCEC-M & S J8J15/J508-J515
Pin 25 (S-V) = Pin 25 (S-V)*
Pin 50 (V-S) = Pin 50 (V-S)*
DPFT J2 (station) = LCEC/NCEC-M & S J4J15/J504-J515

3) Using Tables 5-8 and 5-15 for guides:
• Connect the trunks selected for emergency use to the J1 block “CO Tip” and
“CO Ring” terminals.
• Connect the NCOU circuits supporting
the emergency trunks to the J1 block
“NCOU Tip” and “NCOU Ring” terminals.

PERCEPTIONex
Any trunk position

*On the J1 connector, the pin 25 connection
provides the -24 VDC input required to drive
the DPFT and the pin 50 connection provides
ground. There are no power connections on
connector J2.

4) Using Tables 5-6, 5-7, 5-9, 5-14 and 5-16 for
guides:
• Connect the standard telephone stations,
designated for emergency use, to the
proper terminals on the J2 block “TEL
Tip” and “TEL Ring” terminals.

9.20 Reserve Power

4-60

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
9.21 Install Reserve Power as follows (Figure 468):

4-67). Observe the correct polarity. Fix battery
leads to the cabinet using the clamp.

1) Place the customer-supplied battery pack
where it will be located.

5) Place the BAT BACK UP switch on the front
of the main power supply in the ON position.

CAUTION!
Batteries can emit fumes that are poisonous to people, potentially explosive, and
corrosive to electronic components. Locate batteries so that any fumes are adequately vented per local fire codes.

6) Plug the AC cable into the outlet and turn the
POWER switch ON.
9.30 Paging Equipment
9.31 By combining a single customer-supplied paging amplifier with the system’s paging interface and
speaker zone switching, it is possible to provide a
paging system of up to five zones with All Zone
Page capability.

2) Place the POWER switch (on the front of the
main power supply) in the OFF position and
remove the AC power cable from the outlet.

9.32 Figures 4-69, 4-70 and 4-71 show possible
paging arrangements. As a standard feature (part
of the NPRU PCB), the system provides a 600-ohm
output to a paging amplifier. If more than one
paging zone is required, the output of the amplifier
can be routed back to the NPRU PCB where it will
be switched to one of five sets of speakers. The
speaker operated is determined by the access
code dialed by the station user. The actual access
code is assigned in software (see Section 200-255300, Programming).

J202

TB2

PEAK LOAD
BATTERY
CABLES

+
BAT. (24V)

J201

SURGE
TEST
P1

J703

TB1 L N

J203

9.33 An All Page code can also be defined in
software. When that code is dialed, all relays will be
activated simultaneously to permit paging to all
speaker zones.

GND

24 VDC
BATTERY
PACK

NOTE:
Ensure that the correct
polarity is maintained.

EXT
GND

9.34 If the power loads of the different zones are
such that a single amplifier is not suitable, multiple
amplifiers (up to one for each zone) can be connected as shown in Figure 4-71.

POWER
CABLE

9.35 If music is to be broadcast over the paging
system, two arrangements are possible:

FIGURE 4-68—RESERVE POWER INSTALLATION

1) If the music is supplied from a separate amplifier (as in Figures 4-70 and 4-71), it can be
connected between the speaker common line
and the PG GND input to the NPRU
(PERCEPTION e J2/J502 and pin 2 or
PERCEPTIONex J1/J2 and pin 2). The music
will be connected to all speaker zones when
no page is in progress. When a page access

3) Connect the battery pack leads (customersupplied) to TB2 BAT on the NPSA-M or
LPSA (Figure 4-68). Observe the correct polarity. Leave the leads from the peak load
battery connected.
4) Connect the leads to the battery pack (Figure

4-61

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

PT1
V
O
I
C
E

600Ω

Pe -J2/J502
Pex-J1/J2

PR1

PG1

PGGND

INPUT
#1

OUTPUT

MUTE #2
INPUT #2

OPTIONAL CONNECTION
FOR MUSIC OVER
EXTERNAL SPEAKER

MUSIC
SOURCE
FIGURE 4-69—PAGING WITH MUSIC OVER EXTERNAL SPEAKER FROM SAME AMPLIFIER
code is dialed, the music is disconnected from
the zone and the page amplifier output is
connected.

pins 4 and 29 (Br-W and W-BR) of J2 or J502 / J1
or J2 for the PERCEPTIONe&ex systems, respectively (see Tables 5-4 and 5-10). The input impedance is 600 ohms. (This cannot be the same
source used to provide music over external speakers.)

2) If the music is connected to a second input of
the paging amplifier (Figure 4-69), the PG1
control lead (J2 and J502 pin 27 or J1 and J2
for PERCEPTIONe&ex, respectively) can be
connected to the MUTE terminal of the page
amplifier music channel. When any page access code is dialed, a ground output is applied
to the PG1 lead to mute the music.

9.43 Adjust the MOH volume with the MOH volume control on the front of the NPRU PCB. Maximum volume is limited by internal circuits in order
to comply with FCC regulations.
9.50 Universal Night Answer

9.36 All paging connections are made at the J2
and J502 or J1 and J2 connectors on the
PERCEPTIONe&ex systems, respectively. The connectors are located on the rear of the basic and
expansion cabinets. See Tables 5-4 and 5-10 for
details.

9.51 The Universal Night Answer (UNA) feature
provides an output of interrupted ringing voltage
(85 +10 VRMS, 20 Hz superimposed on -24 VDC)
whenever the system is in Night Service and an
incoming call is received by a trunk designated for
UNA. Any station user, upon hearing the chime or
bell, can dial the UNA access code and be connected to the caller.

9.40 Music-on-Hold
9.41 A Music-on-Hold (MOH) interface is a standard feature on the system. The circuitry occupies
part of the NPRU PCB. If MOH is equipped, it will be
heard by any station or trunks on-hold in the system, or by any trunk put into the camp-on state.

9.52 The ringing voltage output is intended to
control a strategically located chime or loud ringing bell. The available power is five ringer equivalents.

9.42 A tuner or other program source, supplied by
the customer, is connected to the MOH input via

9.53 Two UNA zones can be installed in tenant
systems. Either zone can be assigned in pro-

4-62

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
Pe-J2/J502
Pex-J1/J2

V
O
I
C
E

PGOUT 1

PGIN 1

PGOUT 2

PGIN 2

PGOUT 3

PGIN 3

PGOUT 4

PGIN 4

PGOUT 5

PGIN 5

PT1

ZONE 1

ZONE 2

ZONE 3

ZONE 4

ZONE 5
PAGING AMP
INPUT

600Ω
PR1

PG1

PGGND

OUTPUT

MUSIC AMP
NPRU

MUSIC
SOURCE

INPUT

OUTPUT

OPTIONAL
CONNECTION
FOR MUSIC
OVER EXTERNAL
SPEAKER

FIGURE 4-70—PAGING WITH ONE AMPLIFIER
gramming to either tenant. For PERCEPTIONe,
connections to the UNA ringing signal are via
pins 12 and 37 (O-BK, BK-O) of J2. This connection is to J502 in the expansion cabinet for UNA
Zone 1 (see Tables 5-4 and 5-10). UNA zone 1
requires a second NPRU PCB in the expansion
cabinet.

9.60 Station Message Detail Recording
9.61 The Station Message Detail Recording
(SMDR) feature enables a business to monitor and
control its telephone costs. Data can be collected
for each outgoing and/or incoming trunk call. Each
such call generates a call record that is output at the
SMDR connector on the connector panel at the
upper rear of the LCEC-M or NCEC-M. (In Lodging/
Health Care applications, data specific to those
applications are included in the SMDR output.)

9.54 UNA connections for PERCEPTIONex are
made at pins 12 and 37 connectors J1 and J2 on
the basic cabinet. A second UNA device requires a
second NPRU to be installed in the basic cabinet.

9.62 SMDR output can be connected to a variety of

4-63

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
J2

NPRU
PGOUT 1

PGIN 1

ZONE 1

PGIN 2

OUTPUT

INPUT

PGOUT 2

AMP
#1

ZONE 2

PGIN 3

OUTPUT

INPUT

PGOUT 3

AMP
#2

ZONE 3

PGIN 4

OUTPUT

INPUT

PGOUT 4

AMP
#3

ZONE 4

PTI

600Ω
PRI

PGGND

ZONE 5

AMP
#5

OUTPUT

PGIN 5

INPUT

OUTPUT

INPUT

V
O
I
C
E

PGOUT 5

AMP
#4

MUSIC
SOURCE

FIGURE 4-71—PAGING WITH MULTIPLE AMPLIFIERS

4-64

OPTIONAL CONNECTION
FOR MUSIC OVER
EXTERNAL SPEAKER

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY
AUGUST1992
1991
customer-provided equipment:
• A local 80-column printer for an on-line printout
at the termination of each trunk call.
• A recording device to store data for subsequent
processing, either on-site or by a service bureau.
• Call accounting equipment to provide customized call reports.

9.66 SMDR can be programmed to record data
under any one of the following conditions:
• Incoming calls only.
• Outgoing calls only.
• Incoming and outgoing calls.
• Outgoing toll calls only.
• All incoming calls and outgoing toll calls.

9.63 Refer to the external device manufacturer’s

9.67 When outgoing calls are chosen, all calls
seizing a trunk will be recorded regardless of duration. On incoming calls, all answered calls will be
recorded. Calls disconnected by Toll or Code Restriction features are not recorded.

1200

300

T
T
Y

M
D
R

9.68 Timing for recorded calls will start as follows
(Figure 4-73):
• Outgoing—when trunk is seized.
• Incoming to attendant only—when attendant
answers.
• Incoming and extended by the attendant—when
attendant answers.
• Incoming to a station—when answered.

A
U
X

9.69 A station user can enter a charge account
code of up to 12 digits for each call. This code is
included in the SMDR output.

FIGURE 4-72—LCCU SWITCHES
PIN
2
3
4
5
6
7
8
20

SIGNAL

9.70 The recording criteria and account code length
are defined in DMDR Program (see Section 200255-300, Programming).

Receive Data (from SMDR device)
Transmit Data (to SMDR device)
Request to Send (to SMDR device)
Clear to Send (to SMDR device)
Data Set Ready
Signal Ground
Carrier Detect
Data Terminal Ready (from SMDR device)

9.71 Each time a trunk is seized, data is collected
for that call until the trunk is released. This data is
output at the SMDR port in the following format (see
Figure 4-73).
• Time
§ Start of Call Hour - tens - units
Minute - tens - units
§ Call Duration Hour - units
Minute - tens- units
Seconds - tens - units
§ Condition Code (see table)
A = Attendant handled
D = Call > 10 hours
E = Maintenance (SMDR port)
F = Maintenance (trunk test)
I = Incoming call
K = Outgoing call
L = Conference Attendant or 3-party

documentation for information on its SMDR connector pin assignments.
9.64 The SMDR output speed can be set for either
300 bps or 1200 bps by the MDR switch on the front
panel of the LCCU PCB (Figure 4-72). SMDR pin
assignments are as follows:
9.65 The code used by SMDR is standard 7-level
ASCII using one start bit, one stop bit and one parity
bit (even parity).

4-65

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72

02 : 13
START OF CALL

02 : 34
START OF CALL

0 : 00 : 25

CALL DURATION CONDITION ACCESS

0 : 01 : 33

CALL DURATION CONDITION

001

1 - 516 - 669 - 1234

201

002

TPN

DIALED PHONE NUMBER

STATION

PORT

L005

3574

200

001

PORT

DNIS DIGITS
RECEIVED

STATION

ACCESS

TPN

1 2 3 4 5 6 7 8 9 0 1 2 CR LF

OUTGOING

ACCOUNT CODE OR STROKE COUNT

1 2 3 4 5 6 7 8 9 0 3 5 CR LF

INCOMING

ACCOUNT CODE OR STROKE COUNT

CR LF

DATE

DATE/TIME
CHANGE

09 : 14

START OF CALL

CONDITON

CR LF

= ONE SPACE

FIGURE 4-73—EXAMPLE: SMDR CALL RECORD

•
•
•
•
•
•
•
•

M = Transfer or Call Forward
N = SPCC #1
O = SPCC #2
P = Date/Time change
Q = System Initialize
R = Incomplete call
S = Date printed (every hour)
Access Code
3 digits maximum
Dialed Number 15 digits maximum
Calling DN
4 digits maximum
Trunk Port
3 digits maximum
DNIS Digits
4 digits maximum
Calling Port No.
3 digits maximum
Account Code
12 digits maximum
or
Stroke Count
4 digits maximum

NNNNNN
Time Change:
MM DD (old date)
HH : MM (old time)
MM DD (new date)
HH : MM (new time)
9.74 Some complex calls will cause multiple call
records (CR) for the same station or trunk.
Examples:
1) Station 1 transfers Trunk 1 to Station 2
CR for Station 1 ~ Trunk 1
= Condition Code I or K
CR for Station 2 ~ Trunk 1
= Condition Code M

9.72 The format of the special record, for Initialize/
Reload and Time Change, is as follows:
Initialize/Reload:
NNNN etc. (previous records-usual call)
00 (initialize or reload)

2) Station 1 transfers Trunk 1 to Trunk 2
CR for Station 1 ~ Trunk 1
= Condition Code I or K
CR for Station 1 ~ Trunk 2
= Condition Code L
CR for Trunk 1 ~ Trunk 2
= Condition Code M

9.73 Any record printed after the initialize record
will appear on the same line and be offset three
columns from the usual record.

3) Station 1 holds Trunk 1 and calls Trunk 2
CR for Station 1 ~ Trunk 1
= Condition Code I or K

Example:
NNNN (previous record)
00 NNNNN (initialize and next record)

4-66

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
If the TTY connector is used for programming and maintenance operations, (either
with an on-site teleprinter or remotely via a
modem) be careful not to change the data
rate setting of the TTY switch so that it is
incompatible with programming equipment.

CR for Station 1 ~ Trunk 2
= Condition Code K
9.75 All connections to miscellaneous equipment are made via J2, J1, TTY, SMDR, and
MODEM connectors on the connector panels
of the system.

9.86 Figure 4-74 shows a typical Lodging/Health
Care audit printout. Notes on the figure explain the
possible value for each column.

9.80 Lodging/Health Care Data Audit
9.81 The Lodging/Health Care Data Audit feature
enables the user to record and analyze the registration and operation of specific features in Lodging/
Health Care applications.

10. SYSTEM POWER UP
10.00 General

9.82 Lodging/Health Care audit data is output at
either the SMDR (as part of the SMDR printout) or
the TTY (as a separate report) connector on the
upper rear of the basic cabinet. (Because the TTY
connector is required for on-site programming and
maintenance procedures, it is recommended that
the SMDR port be used.) The selection of data to be
output and the connector choice (TTY or SMDR)
are software-controlled (see DHMF Program in
Section 200-255-300, Programming).

10.01 Upon initial power up, the system will
automatically load its operating system and customer data from the disk. Two sets of disks are
provided with each system; one set should always
be mounted in the drive, the other kept as a spare.
10.02 Activate the system as follows:
1) Be sure the main power switch on the NPSAM is in the OFF position, and plug the AC cord
into the outlet.

9.83 The SMDR or TTY output can be connected
to either:
• A local 80-column printer for an on-line printout.
• Compatible call accounting or property management interface equipment, supplied by another
vendor.

2) If the system uses D.02 or later version software, insert the SYSTEM disk in FDD0. If two
drives are used, insert the MAINTENANCE
disk (Figure 4-75) in FDD1. If the system uses
D.01 software, insert the program disk in FDD0.

9.84 The audit pin-out assignments at the SMDR
or the TTY connector are not identical. Refer to
Paragraph 9.64 for the pin-out assignments of each
connector. For instruction on connecting equipment provided by other vendors, refer to the
manufacturer’s documentation.

3) Turn the main power switch on the NPSA-M to
the ON position.
4) The floppy disk will run: LED will come on.
• LCCU MAJ ALARM LED will be on.
• NPRU PFT LED will be on.

9.85 The audit data output rate can be set for either
300 bps or 1200 bps (depending on the configuration of the receiving equipment) at either the SMDR
switch or the TTY switch on the front panel of the
LCCU PCB.

CAUTION!

4-67

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
ROOM/DIRECTORY
NUMBER
FEATURE

1
2

OPERATION
TIME FEATURE WAS
REGISTERED/ACTIVATED

DATE
ROOM STATUS CODE 3
TELEPHONE SET STATUS/AGENT
REGISTERING OR CANCELLING FEATURE4

202 AWU

CANCEL

14:40 030786

CR LF

400 MW ON

14:45 030786

CR LF

400 MW OFF

14:50 030786

CR LF

202 AWU

15:11 030786

15:15

CR LF

10:18 031086 4

M D

CR LF

SET

202 ROOM STATUS

NOTES:
1. FEATURE
MW = Message Waiting
AWU = Automatic Wake-up
MRA = Message Registration
Audit
Room Status = Room Status Audit

= ONE SPACE

4.This column shows either the status of
the station accessed for feature operation (for example, a wake-up call) or
the agent who registered the feature.
STATUS
RNA = Ring No-Answer
Bsy = Busy
$XXX.XX = Total call charges for
this station
M = Maid in Room
XX:XX = Time Wake-up Call
Scheduled for
AGENT
MC = Message Center
EXT = Station

2. OPERATION
ON = Set at Attendant Console
OFF = Cancelled at either
Attendant Console or
Station
SET = Set at either Attendant
Console or Station
CANCEL = Cancelled at either
Attendant Console or
Station
3. ROOM STATUS CODE
1 = Vacant and clean
2 = Occupied and clean
3 = Vacant and needs cleaning
4 = Occupied and needs cleaning

FIGURE 4-74—EXAMPLE: AUDIT PRINTOUT (LODGING/HEALTH CARE)

4-68

INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
FDD0 CCU TWU P00 C00 L00

L03

T07 T06 T05 T04 T03 T02 T01
FDD1 L04 L05 L06 L07 L08 L09 L10

T00
L11

NDSU

NPRU

NTWU

NFDU

LABEL
SIDE

LCCU

FDD0

NFDU

FDD1

L01 L02

FIGURE 4-75—INSERTING DISK
(PERCEPTIONex ONLY)

FIGURE 4-76—INSERTING DISK
(PERCEPTIONe ONLY)

4-69

INSTALLATION INSTRUCTIONS
SECTION 200-255-205
FEBRUARY 1992
CHAPTER 5
MDF ARRANGEMENT

J19

J20

J21

J22

J23

J24

J25

J26

J27

J28

J30

1.01 Cables with male amphenol-type connectors
are attached to the connector panels of the basic
and expansion cabinets and secured with the connector locking bar (Figure 5-1). Plastic cable clamps
are provided along the base of the basic cabinet to
secure cables. The opposite ends of the cables are
then terminated on 66-type quick-connect terminal
blocks on the MDF (split blocks with bridging clips
should be used to allow for fault isolation). A typical
MDF layout is shown in Figure 5-2. Connect each
cable from the basic and expansion cabinets to one
side of the block and external equipment cables to
the other side. Use bridge clips to make the connections.

J29

1.00 All connections from the system to external
equipment, such as trunks, stations, data interface
units, etc., are made via a customer-provided main
distribution frame (MDF).

FIGURE 5-1—CONNECTOR LOCKING BAR

1.02 FCC regulations prohibit unregistered equipment from being terminated on the same block as
CO trunks. It is good practice to separate trunks
from all other equipment at the MDF.

Install and test the secondary protectors per the
installation instructions of the applicable U.L. listed
manufacturers:
• Centron Corp., Anaheim, California 92807: Model

1.03 Table 5-1 shows the connector-card slot
match-up. Table 5-2 lists the connector cables
required for the system. Each connector provides
the interface for only a single card slot.

08450.
• Curtis Mfg. Co. Inc., Jaffrey, New Hampshire

03452: Model Diamond Chip.
• Oneac Corp., Libertyville, Illinois 60048: Models

OnLine 614 and OnLine DG/S.
• Siemon Co., Watertown, Connecticut 06795:

1.04 To protect against transient voltages and
currents beyond what is provided by simple primary
protectors, the Underwriters’ Laboratories’ Standard
1459 2nd edition lists secondary protectors that
should be installed if there are outside leads. See
Figure 5-3 for these conditions.

Models PM-2305 and CPM-2 Plus.
• Simplex Time Recorder Co., Gardener, Massachusetts 01440: Models 2081-9027 and 20819028.

5-1

INSTALLATION INSTRUCTIONS
SECTION 200-255-205
FEBRUARY 1992
TO T1 LINE

PERCEPTION e&ex CABINETS
MDF B

MODEM
NDTU
NCOU
NEMU
NLSU
NSTU
NEKU
NOCU
NDKU
NDCU
NMDU

TTY
(Pe ONLY)

TTY
SMDR

CALL
ACCOUNTING

AUX

MIS

POWER SUPPLY

EXTERNAL
BATTERY

–24V
CHARGER

117 VAC
POWER

117 VAC

RINGING
GENERATOR
EXT GND
EXTERNAL
GROUND

CSU

NPRU

DATT

NDSU

2-PAIR

TO CO, DID,
OR
TIE TRUNK

J1
PFT

MDF A

UNA BELL

25-PAIR
ELECTRONIC
DSS CONSOLES

PAGING
EQUIP.

POWER
FAILURE/
EMERGENCY
TELEPHONE

MUSIC SOURCE

1-PAIR

ATTENDANT
CONSOLE

1-PAIR

2-PAIR

3-PAIR

1-PAIR

3-PAIR

1-PAIR

2-PAIR

1-PAIR

DDIU-MAT
EKT W/OCA
LCD
ELECTRONIC
TELEPHONE

STANDARD
TELEPHONE
RS-232C

DIGITAL
TELEPHONE
WITH PDIU-DI
OR OCA
RS-232

TOSHIBA

DDIU-MA
PDIU-DS
VOICE MAIL/
AUTOMATED
ATTENDANT

DIGITAL DSS
CONSOLE
T 51
00

T 51
00

RS-232
DATA
EQUIPMENT

RS-232

DATA
EQUIPMENT

FIGURE 5-2—MAIN DISTRIBUTION FRAME LAYOUT

5-2

INSTALLATION INSTRUCTIONS
SECTION 200-255-205
FEBRUARY 1992

BUILDING #1

BUILDING #2

Perceptione & ex
R

DIGITAL
TELEPHONE

NDKU

DIGITAL DSS
CONSOLE
DIGITAL
DIU

DIU
POWE
R
READ
Y
CONN
ECT
TEST

TOS

HIB

NOCU
ELECTRONIC
TELEPHONE
ATTENDANT
CONSOLE

NEKU
-24V
GND
NDSU

209

219

208

218

207

217

206

216

205

215

229

228

239

238

249

248

237

247

226

236

246

225

235

245

227

NT1

257

256

255

204

214

224

234

244

254

203

213

223

233

243

253

202

212

222

232

242

252

201

211

221

231

241

251

200

210

220

230

240

250

ELECTRONIC
DSS
CONSOLE
MODEM

NMDU

TOSHIBA

NDCU
TOSHIBA

NSTU

ELECTRONIC
DIU
ELECTRONIC
DIU

STANDARD
TELEPHONE
DPFT
102
C. O. LINE

NCOU
C. O. LINE
Shows Secondary Protectors

FIGURE 5-3—SECONDARY PROTECTOR DIAGRAM

5-3

INSTALLATION INSTRUCTIONS
SECTION 200-255-205
FEBRUARY 1992
TABLE 5-1
CARD SLOT/CABLE CONNECTOR MATRIX
CONFIGURATION
BASIC

TOSHIBA

CARD SLOT CONNECTOR CARD SLOT CONNECTOR

Percep

PERCEPTION e

tion e

EXPANDED

TOSHIBA

Perception e

BASIC
TOSHIBA

Percep

PERCEPTION ex

tion ex

EXPANDED
(ONE
EXPANSION
UNIT)

TOSHIBA

Percep

tion ex

EXPANDED
(TWO
EXPANSION
UNITS)
TOSHIBA

Percep

tion ex

5-4

C00
L00
L01
L02
L03
L04/T07
L05/T06

J3
J4
J5
J6
J7
J8
J9

L06/T05
L07/T04
L08/T03
L09/T02
L10/T01
L11/T00

J10
J11
J12
J13
J14
J15

C01
L15
L16
L17
L18
L19/T15
L20/T14

J503
J504
J505
J506
J507
J508
J509

L21/T13
L22/T12
L23/T11
L24/T10
L25/T09
L26/T08

J510
J511
J512
J513
J514
J515

U00
U01
U02
U03
U04
U05
U06
U07
T03
T02
T01
T00

J18
J17
J16
J15
J14
J13
J12
J11
J10
J09
J08
J07

U08
U09
U10
U11
U12
U13
U14
U15
T07
T06
T05
T04

J30
J29
J28
J27
J26
J25
J24
J23
J22
J21
J20
J19

U16
U17
U18
U19
U20
U21

J512
J511
J510
J509
J508
J507

U22
U23
T11
T10
T09
T08

J506
J505
J504
J503
J502
J501

U24
U25
U26
U27
U28
U29

J524
J523
J522
J521
J520
J519

U30
U31
T15
T14
T13
T12

J518
J517
J516
J515
J514
J513

TABLE 5-2
LIST OF CONNECTOR CABLES
PERCEPTIONe
CARD SLOT

CONN. NO.

CONTENT OF CONNECTOR

DESC. TABLE

MDF

J1 & J501

ATT0 & ATT1

5-3

MDF

J2 & J502

Paging, Music & UNA Ringing

5-4

MDF

J3 & J503

NDSU

5-5
1

MDF

J4~J7 & J504~J507

NDSU/NEKU/NDKU/NSTU/NDCU/NMDU/NOCU

MDF

J8~J15 & J508~J515

NDSU/NEKU/NDKU/NSTU/NDCU/NMDU/NOCU
1
or NCOU/NLSU/NEMU/NDTU

5-7

From PFT
to MDF

PFT Conn. No.

CO Line & NCOU 00~07
(Maximum: 8) (Maximum: 8)

5-8

From PFT
to MDF

PFT Conn. No.

STT Line & NSTU 00~14
(Maximum: 8) (Maximum: 8)

5-9

5-6

PERCEPTIONex
MDF

J1 & J2

Paging, Music & UNA Ringing

5-11

MDF

ATT0

5-10

ATT1

5-10

MDF

J07~J10/J19~J22/
J501~J504/J513~J518

NCOU/NEMU/NLSU/NDTU 2

5-12

MDF

J11~J18/J23~J30/
J505~J512/J517~J524

NDSU/NEKU/NDKU/NSTU/NDCU/NMDU/NOCU
or NCOU/NEMU/NLSU

5-13

From PFT
to MDF

PFT Conn. No.

CO Line & NCOU 00~07
(Maximum: 8) (Maximum: 8)

5-14

From PFT
to MDF

PFT Conn. No.

STT Line & NSTU 00~14
(Maximum: 8) (Maximum: 8)

5-15

NOTES:
1. In PERCEPTIONe the J connector cabinet is determined by 1- and 2-digit numbers indicating the
basic cabinet. Three-digit number connectors are located in the expansion cabinet.
2. In PERCEPTIONex the J connector cabinet is determined by 1- and 2-digit numbers indicating the
basic cabinet. Three-digit numbers J501 ~ J512 identify expansion cabinet #1. Three-digit
numbers J513 ~ J524 identify expansion cabinet #2.

5-5

INSTALLATION INSTRUCTIONS
SECTION 200-255-205
FEBRUARY 1992

5-6

PERCEPTIONe
CONNECTOR TABLES

5-7

INSTALLATION INSTRUCTIONS
SECTION 200-255-205
FEBRUARY 1992
TABLE 5-3
TERMINAL SEQUENCE & DESIGNATIONS
CONNECTOR NO. J1/J501
ATTENDANT CONSOLE #0 & #1
PAIR

1T
R
2T
R
3T
R
4T
R
5T
R
6T
R
7T
R
8T
R
9T
R
10T
R
11T
R
12T
R
13T
R
14T
R
15T
R
16T
R
17T
R
18T
R
19T
R
20T
R
21T
R
22T
R
23T
R
24T
R
25T
R

26
1
27
2
28
3
29
4
30
5
31
6
32
7
33
8
34
9
35
10
36
11
37
12
38
13
39
14
40
15
41
16
42
17
43
18
44
19
45
20
46
21
47
22
48
23
49
24
50
25

COLOR
CODE
W-Bl
Bl-W
W-O
O-W
W-G
G-W
W-Br
Br-W
W-S
S-W
R- Bl
Bl-R
R-O
O-R
R-G
G-R
R-Br
Br-R
R-S
S-R
Bk-Bl
Bl-Bk
Bk-O
O-Bk
Bk-G
G-Bk
Bk-Br
Br-Bk
Bk-S
S-Bk
Y-Bl
Bl-Y
Y-O
O-Y
Y-G
G-Y
Y-Br
Br-Y
Y-S
S-Y
V-Bl
Bl-V
V-O
O-V
V-G
G-V
V-Br
Br-V
V-S
S-V

LEAD
DESIGNATION
TL 001/151
RL 001/151
DTL 001/151
DRL 001/151
Spare
Spare
EMT 0
INIT 0
Spare
MAJ IN 0
Spare
Spare
Spare
Spare
Spare
ATT0-24V
Spare
ATT0-24V
Spare
ATT0-24V
Spare
ATT0-24V
Spare
ATT0-24V
Spare
ATT0-24V
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
ATT0 EG
Spare
ATT0 EG
Spare
ATT0 EG
Spare
ATT0 EG
Spare
ATT0 EG
Spare
ATT0 EG
Spare
Spare
Spare

FUNCTION
Tip-Line
Ring-Line
Data Tip-Line
Data Ring-Line

5-6
5-5
5-8

CKT 001
CKT 001
CKT 001
CKT 001

PCB POSITION
NEKU L00/L15
NEKU L00/L15
NEKU L00/L15
NEKU L00/L15

Emergency Transfer SWT
Initialize Switch

NPRU
NPRU

Major Alarm

NPRU

-24V

NPRU

-24V

NPRU

-24V

NPRU

-24V

NPRU

-24V

NPRU

-24V

NPRU

Ground

NPRU

Ground

NPRU

Ground

NPRU

Ground

NPRU

Ground

NPRU

Ground

NPRU

TABLE 5-4
TERMINAL SEQUENCE & DESIGNATIONS
CONNECTOR NO. J2/J502
PAGING, MUSIC & UNA RINGING
PAIR

1T
R
2T
R
3T
R
4T
R
5T
R
6T
R
7T
R
8T
R
9T
R
10T
R
11T
R
12T
R
13T
R
14T
R
15T
R
16T
R
17T
R
18T
R
19T
R
20T
R
21T
R
22T
R
23T
R
24T
R
25T
R

26
1
27
2
28
3
29
4
30
5
31
6
32
7
33
8
34
9
35
10
36
11
37
12
38
13
39
14
40
15
41
16
42
17
43
18
44
19
45
20
46
21
47
22
48
23
49
24
50
25

LEAD
DESIGNATION
PT 1
PR 1
PG 1
PG Gnd
Spare
Spare
MT
MR
Spare
Spare
1
PG In
PG Out 1
2
PG In
PG Out 2
3
PG In
PG Out 3
4
PG In
PG Out 4
5
PG In
PG Out 5
Spare
Spare
UNA B
UNA A
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare

FUNCTION

PCB POSITION

Paging Tip
Paging Ring
Paging Equip. Control
Paging Equip. Common

NPRU
NPRU
NPRU
NPRU

MOH Source Tip
MOH Source RIng

NPRU
NPRU

Paging Amp
Page Zone
Paging Amp
Page Zone
Paging Amp
Page Zone
Paging Amp
Page Zone
Paging Amp
Page Zone

5-9
5-7

#1 Out
#1 Out
#2 Out
#2 Out
#3 Out
#3 Out
#4 Out
#4 Out
#5 Out
#5 Out

NPRU
NPRU
NPRU
NPRU
NPRU
NPRU
NPRU
NPRU
NPRU
NPRU

UNA Ringing Ground
UNA Ringing 20 Hz

NPRU
NPRU

PFT-24 Volts (Ground)
(Power)

NPRU
NPRU

INSTALLATION INSTRUCTIONS
SECTION 200-255-205
FEBRUARY 1992
TABLE 5-5
TERMINAL SEQUENCE & DESIGNATIONS FOR PERCEPTIONe ONLY
CONNECTOR NO. J3.503
NDSU/NDKU (DSS CONSOLES) "C" SLOT
PAIR

COLOR CODE

STATION FUNCTION

1T
R
2T
R
3T
R
4T
R
5T
R
6T
R
7T
R
8T
R

26
1
27
2
28
3
29
4
30
5
31
6
32
7
33
8

W-Bl
Bl-W
W-O
O-W
W-G
G-W
W-Br
Br-W
W-S
S-W
R- Bl
Bl-R
R-O
O-R
R-G
G-R

Tip-Line
Ring-Line
Data Tip-Line
Data Ring-Line
Tip-Line
Ring-Line
Data Tip-Line
Data Ring-Line
Tip-Line
Ring-Line
Data Tip-Line
Data Ring-Line
Tip-Line
Ring-Line
Data Tip-Line
Data Ring-Line

5-8
5-10

LINE CIRCUIT

CXX1

CXX2

CXX3

CXX4

TABLE 5-6
TERMINAL SEQUENCE & DESIGNATIONS
CONNECTOR NO. J4 ~ J7/J504 ~ J507
NDSU/NEKU/NDKU/NSTU/NDCU/NMDU/NOCU (L00 ~ L03/L15 ~ L18)
PAIR

COLOR CODE

STATION FUNCTION

1T
R
2T
R
3T
R
4T
R
5T
R
6T
R
7T
R
8T
R
9T
R
10T
R
11T
R
12T
R
13T
R
14T
R
15T
R
16T
R

26
1
27
2
28
3
29
4
30
5
31
6
32
7
33
8
34
9
35
10
36
11
37
12
38
13
39
14
40
15
41
16

W-Bl
Bl-W
W-O
O-W
W-G
G-W
W-Br
Br-W
W-S
S-W
R- Bl
Bl-R
R-O
O-R
R-G
G-R
R-Br
Br-R
R-S
S-R
Bk-Bl
Bl-Bk
Bk-O
O-Bk
Bk-G
G-Bk
Bk-Br
Br-Bk
Bk-S
S-Bk
Y-Bl
Bl-Y

Tip-Line
Ring-Line
Data Tip-Line
Data Ring-Line
Tip-Line
Ring-Line
Data Tip-Line
Data Ring-Line
Tip-Line
Ring-Line
Data Tip-Line
Data Ring-Line
Tip-Line
Ring-Line
Data Tip-Line
Data Ring-Line
Tip-Line
Ring-Line
Data Tip-Line
Data Ring-Line
Tip-Line
Ring-Line
Data Tip-Line
Data Ring-Line
Tip-Line
Ring-Line
Data Tip-Line
Data Ring-Line
Tip-Line
Ring-Line
Data Tip-Line
Data Ring-Line

5-9
5-11

LINE CIRCUIT

LXX1

LXX2

LXX3

LXX4

LXX5

LXX6

LXX7

LXX8

INSTALLATION INSTRUCTIONS
SECTION 200-255-205
FEBRUARY 1992

TABLE 5-7
TERMINAL SEQUENCE & DESIGNATIONS
CONNECTOR NO. J8 ~ J15/J508 ~ J515
NDSU/NEKU/NDKU/NSTU/NDCU/NMDU/NOCU (L04 ~ L11/L19 ~ L26)
or NCOU/NLSU/NEMU (T07 ~ T00/T15 ~ T08)
PAIR

1T
R
2T
R
3T
R
4T
R
5T
R
6T
R
7T
R
8T
R
9T
R
10T
R
11T
R
12T
R
13T
R
14T
R
15T
R
16T
R

26
1
27
2
28
3
29
4
30
5
31
6
32
7
33
8
34
9
35
10
36
11
37
12
38
13
39
14
40
15
41
16

COLOR CODE STATION FUNCTION
W-Bl
Bl-W
W-O
O-W
W-G
G-W
W-Br
Br-W
W-S
S-W
R- Bl
Bl-R
R-O
O-R
R-G
G-R
R-Br
Br-R
R-S
S-R
Bk-Bl
Bl-Bk
Bk-O
O-Bk
Bk-G
G-Bk
Bk-Br
Br-Bk
Bk-S
S-Bk
Y-Bl
Bl-Y

LINE CIRCUIT

LXX1

LXX2

LXX3

LXX4

LXX5

LXX6

LXX7

LXX8

5-10
5-12

TRUNK
FUNCTION
T
R
T1
R1
E
SG
M
SB
T
R
T1
R1
E
SG
M
SB
T
R
T1
R1
E
SG
M
SB
T
R
T1
R1
E
SG
M
SB

TRUNK CIRCUIT

TXX1

TXX2

TXX3

TXX4

TABLE 5-8
TERMINAL SEQUENCE & DESIGNATIONS
CENTRAL OFFICE LINE CONNECTION & PFT CONTROL
J1
PAIR

1T
R
2T
R
3T
R
4T
R
5T
R
6T
R
7T
R
8T
R
9T
R
10T
R
11T
R
12T
R
13T
R
14T
R
15T
R
16T
R
17T
R
18T
R
19T
R
20T
R
21T
R
22T
R
23T
R
24T
R
25T
R

26
1
27
2
28
3
29
4
30
5
31
6
32
7
33
8
34
9
35
10
36
11
37
12
38
13
39
14
40
15
41
16
42
17
43
18
44
19
45
20
46
21
47
22
48
23
49
24
50
25

LEAD
DESIGNATION
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
PFT EG
PFT -24V

FUNCTION
Tip-CO
Ring-CO
Tip-NCOU
Ring-NCOU
Tip-CO
Ring-CO
Tip-NCOU
Ring-NCOU
Tip-CO
Ring-CO
Tip-NCOU
Ring-NCOU
Tip-CO
Ring-CO
Tip-NCOU
Ring-NCOU
Tip-CO
Ring-CO
Tip-NCOU
Ring-NCOU
Tip-CO
Ring-CO
Tip-NCOU
Ring-NCOU
Tip-CO
Ring-CO
Tip-NCOU
Ring-NCOU
Tip-CO
Ring-CO
Tip-NCOU
Ring-NCOU

#1
#1
#1
#1
#2
#2
#2
#2
#3
#3
#3
#3
#4
#4
#4
#4
#5
#5
#5
#5
#6
#6
#6
#6
#7
#7
#7
#7
#8
#8
#8
#8

PFT Ground (Input)
PFT -24V (Input)

5-11
5-13

PCB POSITION

NPRU
NPRU

INSTALLATION INSTRUCTIONS
SECTION 200-255-205
FEBRUARY 1992

TABLE 5-9
TERMINAL SEQUENCE & DESIGNATIONS
STATION LINE CONNECTION
J2
PAIR

1T
R
2T
R
3T
R
4T
R
5T
R
6T
R
7T
R
8T
R
9T
R
10T
R
11T
R
12T
R
13T
R
14T
R
15T
R
16T
R
17T
R
18T
R
19T
R
20T
R
21T
R
22T
R
23T
R
24T
R
25T
R

26
1
27
2
28
3
29
4
30
5
31
6
32
7
33
8
34
9
35
10
36
11
37
12
38
13
39
14
40
15
41
16
42
17
43
18
44
19
45
20
46
21
47
22
48
23
49
24
50
25

LEAD
DESIGNATION
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare

FUNCTION
Tip-TEL
Ring-TEL
Tip-NSTU2
Ring-NSTU2
Tip-TEL
Ring-TEL
Tip-NSTU2
Ring-NSTU2
Tip-TEL
Ring-TEL
Tip-NSTU2
Ring-NSTU2
Tip-TEL
Ring-TEL
Tip-NSTU2
Ring-NSTU2
Tip-TEL
Ring-TEL
Tip-NSTU2
Ring-NSTU2
Tip-TEL
Ring-TEL
Tip-NSTU2
Ring-NSTU2
Tip-TEL
Ring-TEL
Tip-NSTU2
Ring-NSTU2
Tip-TEL
Ring-TEL
Tip-NSTU2
Ring-NSTU2

5-12
5-14

PCB POSITION
#1
#1
#1
#1
#2
#2
#2
#2
#3
#3
#3
#3
#4
#4
#4
#4
#5
#5
#5
#5
#6
#6
#6
#6
#7
#7
#7
#7
#8
#8
#8
#8

PERCEPTIONex
CONNECTOR TABLES

5-15

INSTALLATION INSTRUCTIONS
SECTION 200-255-205
FEBRUARY 1992

THIS PAGE INTENTIONALLY LEFT BLANK

5-16

TABLE 5-10
TERMINAL SEQUENCE & DESIGNATIONS
CONNECTOR NO. J6/J5
ATTENDANT CONSOLE #0 & #1
PAIR

1T
R
2T
R
3T
R
4T
R
5T
R
6T
R
7T
R
8T
R
9T
R
10T
R
11T
R
12T
R
13T
R
14T
R
15T
R
16T
R
17T
R
18T
R
19T
R
20T
R
21T
R
22T
R
23T
R
24T
R
25T
R

26
1
27
2
28
3
29
4
30
5
31
6
32
7
33
8
34
9
35
10
36
11
37
12
38
13
39
14
40
15
41
16
42
17
43
18
44
19
45
20
46
21
47
22
48
23
49
24
50
25

LEAD
DESIGNATION
TL 001
RL 001
DTL 001
DRL 001
Spare
Spare
EMT 0
INIT 0
Spare
MAJ IN 0
Spare
Spare
Spare
Spare
Spare
ATT0 -24V
Spare
ATT0 -24V
Spare
ATT0 -24V
Spare
ATT0 -24V
Spare
ATT0 -24V
Spare
ATT0 -24V
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
ATT0 EG
Spare
ATT0 EG
Spare
ATT0 EG
Spare
ATT0 EG
Spare
ATT0 EG
Spare
ATT0 EG
Spare
Spare
Spare

FUNCTION
Tip-Line
Ring-Line
Data Tip-Line
Data Ring-Line

CKT 001
CKT 001
CKT 001
CKT 001

PCB POSITION
NEKU U00/U01
NEKU U00/U01
NEKU U00/U01
NEKU U00/U01

Emergency Transfer SWT
Intialize Switch

NPRU
NPRU

Major Alarm

NPRU

-24V

NPRU

-24V

NPRU

-24V

NPRU

-24V

NPRU

-24V

NPRU

-24V

NPRU

Ground

NPRU

Ground

NPRU

Ground

NPRU

Ground

NPRU

Ground

NPRU

Ground

NPRU

5-13
5-17

INSTALLATION INSTRUCTIONS
SECTION 200-255-205
FEBRUARY 1992

TABLE 5-11
TERMINAL SEQUENCE & DESIGNATIONS
CONNECTOR NO. J1 & J2
PAGING, MUSIC & UNA RINGING
PAIR

1T
R
2T
R
3T
R
4T
R
5T
R
6T
R
7T
R
8T
R
9T
R
10T
R
11T
R
12T
R
13T
R
14T
R
15T
R
16T
R
17T
R
18T
R
19T
R
20T
R
21T
R
22T
R
23T
R
24T
R
25T
R

26
1
27
2
28
3
29
4
30
5
31
6
32
7
33
8
34
9
35
10
36
11
37
12
38
13
39
14
40
15
41
16
42
17
43
18
44
19
45
20
46
21
47
22
48
23
49
24
50
25

LEAD
DESIGNATION
PT 1
PR 1
PG 1
PG Gnd
Spare
Spare
MT
MR
Spare
Spare
PG In 1
PG Out 1
PG In 2
PG Out 2
PG In 3
PG Out 3
PG In 4
PG Out 4
PG In 5
PG Out 5
Spare
Spare
UNA B
UNA A
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare

FUNCTION

PCB POSITION

Paging Tip
Paging Ring
Paging Equip. Control
Paging Equip. Common

NPRU
NPRU
NPRU
NPRU

MOH Source Tip
MOH Source Ring

NPRU
NPRU

Paging Amp
Paging Zone
Paging Amp
Paging Zone
Paging Amp
Paging Zone
Paging Amp
Paging Zone
Paging Amp
Paging Zone

5-14
5-18

#1 Out
#1 Out
#2 Out
#2 Out
#3 Out
#3 Out
#4 Out
#4 Out
#5 Out
#5 Out

NPRU
NPRU
NPRU
NPRU
NPRU
NPRU
NPRU
NPRU
NPRU
NPRU

UNA Ringing Ground
UNA Ringing 20 Hz

NPRU
NPRU

PFT-24 Volts (Ground)
(Power)

NPRU
NPRU

TABLE 5-12
TERMINAL SEQUENCE & DESIGNATIONS
CONNECTOR NO. J07 ~ J10/J19 ~ J22/J501 ~ J504/J513 ~ J518
NCOU/NEMU/NLSU/NDTU (T00 ~ T15)
PAIR

COLOR CODE

1T
R
2T
R
3T
R
4T
R
5T
R
6T
R
7T
R
8T
R
9T
R
10T
R
11T
R
12T
R
13T
R
14T
R
15T
R
16T
R

26
1
27
2
28
3
29
4
30
5
31
6
32
7
33
8
34
9
35
10
36
11
37
12
38
13
39
14
40
15
41
16

W-Bl
Bl-W
W-O
O-W
W-G
G-W
W-Br
Br-W
W-S
S-W
R- Bl
Bl-R
R-O
O-R
R-G
G-R
R-Br
Br-R
R-S
S-R
Bk-Bl
Bl-Bk
Bk-O
O-Bk
Bk-G
G-Bk
Bk-Br
Br-Bk
Bk-S
S-Bk
Y-Bl
Bl-Y

TRUNK
FUNCTION
T
R
T1
R1
E
SG
M
SB
T
R
T1
R1
E
SG
M
SB
T
R
T1
R1
E
SG
M
SB
T
R
T1
R1
E
SG
M
SB

TRUNK CIRCUIT

TXX1

TXX2

TXX3

TXX4

NOTE:
The NDTU may be installed in T00 or T08, connectors J07 and J501 respectively. It may not be used
in universal slots.

5-15
5-19

INSTALLATION INSTRUCTIONS
SECTION 200-255-205
FEBRUARY 1992

TABLE 5-13
TERMINAL SEQUENCE & DESIGNATIONS
CONNECTOR NO. J11 ~ J18/J23 ~ J30/J505 ~ J512/J517 ~ J524
NDSU/NEKU/NDKU/NSTU/NDCU/NMDU/NOCU (U00 ~ U31) or NCOU/NEMU/NLSU (T16 ~ T31)
PAIR

1T
R
2T
R
3T
R
4T
R
5T
R
6T
R
7T
R
8T
R
9T
R
10T
R
11T
R
12T
R
13T
R
14T
R
15T
R
16T
R

26
1
27
2
28
3
29
4
30
5
31
6
32
7
33
8
34
9
35
10
36
11
37
12
38
13
39
14
40
15
41
16

COLOR CODE STATION FUNCTION
W-Bl
Bl-W
W-O
O-W
W-G
G-W
W-Br
Br-W
W-S
S-W
R- Bl
Bl-R
R-O
O-R
R-G
G-R
R-Br
Br-R
R-S
S-R
Bk-Bl
Bl-Bk
Bk-O
O-Bk
Bk-G
G-Bk
Bk-Br
Br-Bk
Bk-S
S-Bk
Y-Bl
Bl-Y

LINE CIRCUIT

LXX1

LXX2

LXX3

LXX4

LXX5

LXX6

LXX7

LXX8

5-16
5-20

TRUNK
FUNCTION
T
R
T1
R1
E
SG
M
SB
T
R
T1
R1
E
SG
M
SB
T
R
T1
R1
E
SG
M
SB
T
R
T1
R1
E
SG
M
SB

TRUNK CIRCUIT

TXX1

TXX2

TXX3

TXX4

TABLE 5-14
TERMINAL SEQUENCE & DESIGNATIONS
CENTRAL OFFICE LINE CONNECTION & PFT CONTROL
J1
PAIR

1T
R
2T
R
3T
R
4T
R
5T
R
6T
R
7T
R
8T
R
9T
R
10T
R
11T
R
12T
R
13T
R
14T
R
15T
R
16T
R
17T
R
18T
R
19T
R
20T
R
21T
R
22T
R
23T
R
24T
R
25T
R

26
1
27
2
28
3
29
4
30
5
31
6
32
7
33
8
34
9
35
10
36
11
37
12
38
13
39
14
40
15
41
16
42
17
43
18
44
19
45
20
46
21
47
22
48
23
49
24
50
25

LEAD
DESIGNATION
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
PFT EG
PFT -24V

PCB POSITION
#1
#1
#1
#1
#2
#2
#2
#2
#3
#3
#3
#3
#4
#4
#4
#4
#5
#5
#5
#5
#6
#6
#6
#6
#7
#7
#7
#7
#8
#8
#8
#8

PFT Ground (Input)
PFT -24V (Input)

5-17
5-21

NPRU
NPRU

INSTALLATION INSTRUCTIONS
SECTION 200-255-205
AUGUST
1991 1992
FEBRUARY

TABLE 5-15
TERMINAL SEQUENCE & DESIGNATIONS
STATION LINE CONNECTION
J2
PAIR

1T
R
2T
R
3T
R
4T
R
5T
R
6T
R
7T
R
8T
R
9T
R
10T
R
11T
R
12T
R
13T
R
14T
R
15T
R
16T
R
17T
R
18T
R
19T
R
20T
R
21T
R
22T
R
23T
R
24T
R
25T
R

26
1
27
2
28
3
29
4
30
5
31
6
32
7
33
8
34
9
35
10
36
11
37
12
38
13
39
14
40
15
41
16
42
17
43
18
44
19
45
20
46
21
47
22
48
23
49
24
50
25

LEAD
DESIGNATION
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare
Spare

5-18
5-22

PCB POSITION
#1
#1
#1
#1
#2
#2
#2
#2
#3
#3
#3
#3
#4
#4
#4
#4
#5
#5
#5
#5
#6
#6
#6
#6
#7
#7
#7
#7
#8
#8
#8
#8

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File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
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Producer                        : Acrobat Distiller 3.01 for Windows
Author                          : tsd
Creator                         : PageMaker 5.0
Title                           : Perception e&ex I/M
Modify Date                     : 1999:10:11 11:25:48
Page Count                      : 112
Has XFA                         : No
Page Mode                       : UseOutlines
Page Layout                     : SinglePage

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