Powerwave Technologies 5JS0079 LINKNET UNISERV UNIT BOOSTER User Manual USERS MANUAL

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Document ID	604066
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Document Description	USERS MANUAL
Short Term Confidential	No
Permanent Confidential	No
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Document Type	User Manual
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Filesize	66.67kB (833394 bits)
Date Submitted	2005-11-18 00:00:00
Date Available	2005-11-17 00:00:00
Creation Date	2005-09-28 16:12:41
Producing Software	Acrobat Distiller 4.0 for Windows
Document Lastmod	2005-11-09 15:31:16
Document Title	USERS MANUAL

LinkNet UniServ Unit (USU)
RF – FIBER Interface Modules
Installation, Opera
Operation,
tion,
Maintenance and User Manual
DCM000000104 Rev Q
September 2005
© 2005 Powerwave Technologies Incorporated. All rights reserved.
Powerwave Technologies, and the Powerwave logo are registered trademarks.
This Powerwave product is intended only for installation in a RESTRICTED
ACCESS LOCATION and is designed to operate within the Normal Operating
(typical operating) ranges or conditions specified in this document. Operation of
this equipment beyond the specified ranges in this document may cause:
1. Spurious emissions that violate regulatory requirements.
2. The equipment to be automatically removed from service when maximum
thresholds are exceeded.
3. The equipment to not perform in accordance with its specifications.
It is the Operator's responsibility to ensure this equipment is properly installed and operated
within Powerwave operating specifications to obtain proper performance from the equipment
and to comply with regulatory requirements.
Warnings, Cautions, and Notes
Warnings, Cautions, and Notes
Warnings, cautions, and notes are found throughout this manual where applicable. The
associated icons are used to quickly identify a potential condition that could result in the
consequences described below if precautions are not taken. Notes clarify and provide additional
information to assist the user.
Warning
This warning symbol means danger. You are in a situation that could
cause bodily injury. Before you work on any equipment, be aware of the
hazards involved with electrical and RF circuitry and be familiar with
standard practices for preventing accidents.
Caution
This caution symbol means reader be careful. In this situation, the user
might do something that could result in equipment damage or loss of
data.
Note
This note symbol means reader take note. Notes contain helpful
suggestions or references to material not covered in the document.
Procedures are not contained in notes.
DCM000000104 Rev Q
Revision Record
Revision Record
ii
Revision Letter
Date of Change
July 2005
22 September 2005
Reason for Change
Converted Kaval Rev 15 to Powerwave Format
Updated with US700PS
DCM000000104 Rev Q
TABLE OF CONTENTS
Chapter 1 - Theory of Operation
1.1
1.1.1
1.2
1.3
Introduction .................................................................................................................... 1-1
THEORY OF OPERATION ..................................................................................................... 1-1
Typical Application ........................................................................................................... 1-1
MODELS ............................................................................................................................ 1-2
TYPICAL BLOCK DIAGRAM ................................................................................................... 1-3
2.1
2.2
Introduction .................................................................................................................... 2-1
LNKFIB-H03 AND LNKFIB-04 HEADEND MODULES ........................................................... 2-1
US REMOTE MODULES....................................................................................................... 2-1
Chapter 2 - Mounting
Chapter 3 - Connections
3.1
3.1.1
3.1.2
3.2
3.3
Introduction .................................................................................................................... 3-1
CONNECTIONS ................................................................................................................... 3-1
US Remote Module Connections .................................................................................... 3-2
User I/O Connection ........................................................................................................ 3-3
HEADEND TO REMOTE INTERCONNECTS .............................................................................. 3-4
FIBER OPTIC CONNECTIONS ............................................................................................... 3-4
4.1
4.2
4.3
4.4
Introduction .................................................................................................................... 4-1
POWER FOR THE REMOTE MODULE ..................................................................................... 4-1
BATTERY BACKUP OF REMOTE MODULE .............................................................................. 4-1
MODULE SPECIFICATIONS ................................................................................................... 4-2
REMOTE MODULE PER-CARRIER DERATING ........................................................................ 4-3
5.1
5.1.1
5.1.2
5.2
5.3
Introduction .................................................................................................................... 5-1
OPERATION........................................................................................................................ 5-1
Fault Indications ............................................................................................................... 5-1
Configuration and PC Commands ................................................................................... 5-1
GAIN ADJUSTMENTS ........................................................................................................... 5-2
SIGNAL LEVEL ADJUSTMENTS ............................................................................................. 5-2
6.1
6.2
Introduction .................................................................................................................... 6-1
ANTENNA INSTALLATION ..................................................................................................... 6-1
FCC INFORMATION TO USERS ............................................................................................ 6-1
7.1
Introduction .................................................................................................................... 7-1
LASER SAFETY ................................................................................................................... 7-1
8.1
8.1.1
8.1.2
8.2
Introduction .................................................................................................................... 8-1
RETURN FOR SERVICE PROCEDURE ................................................................................... 8-1
Obtaining An RMA ........................................................................................................... 8-1
Repackaging For Shipment ............................................................................................. 8-1
PARTS AND ACCESSORIES .................................................................................................. 8-1
Chapter 4 - Remote Module
Chapter 5 - Operation
Chapter 6 - Antenna Installation
Chapter 7 - Laser Safety
Chapter 8 - Return For Service
DCM000000104 Rev Q
iii
Table of Contents
TABLE OF FIGURES
Figure 1 Typical Application ......................................................................................................... 1-1
Figure 2 Typical Block Diagram.................................................................................................... 1-3
Figure 3 US Remote Modules ...................................................................................................... 1-4
Figure 4 US Remote Modules Mounting ...................................................................................... 2-1
Figure 5 Power Supply Module and Mounting ............................................................................. 2-2
Figure 6 LNKFIB-H03/H04 Headend Module (Front) ................................................................... 3-1
Figure 7 LNKFIB-H03/H04 Headend Module (Rear).................................................................... 3-1
Figure 8 LNKFIB-H03/H04 Headend Module Drawing (Rear) ..................................................... 3-1
Figure 9 US Remote Module Connections ................................................................................... 3-2
Figure 10 ASY00420 DB15 Breakout Kit ..................................................................................... 3-3
Figure 11 Remote Module (Rear View) ........................................................................................ 3-3
TABLE OF TABLES
Table 1 Available Models and Descriptions ................................................................................. 1-2
Table 2 Module Specifications...................................................................................................... 4-2
Table 3 Per-Carrier Derating ........................................................................................................ 4-3
iv
DCM000000104 Rev Q
Chapter 1
Theory of Operation
1 Introduction
This manual contains information and procedures for installation, operation, and maintenance of
the LinkNet Uniserv Unit RF-FIBER Interface Modules. The manual is organized into the following
chapters:
Chapter 1
Theory of Operation
Chapter 5
Operation
Chapter 2
Mounting
Chapter 6
Antenna Installation
Chapter 3
Connections
Chapter 7
Laser Safety
Chapter 4
Remote Module
Chapter 8
Return for Service
1.1 Theory of Operation
The USU RF to Fiber Modules provides a single-band link from a Headend distribution center to
multiple local antennae. RF signals are distributed over a pair of single mode fiber optic distribution
lines to each USU Remote.
Each Headend module can interface to multiple remote modules, the number depending upon the
Headend model.
The Headend modules do not transmit directly out into the air.
Note!
The remote module fiber optic I/O's are band specific, but the Headend fiber optic I/O's are not;
the Headend I/O's may be used for any band.
1.1.1 Typical Application
A typical installation would be....
SMF = Single-Mode Opt ical Fiber
Any required
Amplifiers, Fi lter s,
USU RF to Fiber
Remote Modules
Coupl er s, Etc.
RF Cable
to/f rom
Base Station(s)
RF Cables
These may be single or
multiple units, and are
usuallygrouped on f loors
of a building, mount ed in
Electrical Rooms.
In-Buil di ng
Antennae
Refer to Antenna
Installation Section
Head- End Module
SMF
SMF
RF Cable
SMF
SMF
RF Cable
SMF
SMF
RF Cable
SMF
SMF
RF Cable
SMF
SMF
RF Cable
Head-End Module
Head- End Module
Head- End Module
Head- End Module
HEAD-END DISTRIBUTION CENTER
REMOTE LOCATIONS IN BUILDING
Figure 1 Typical Application
DCM000000104 Rev Q
1-1
Models
1.2 Models
Table 1 Available Models and Descriptions
MODEL
DESCRIPTION
US800TP
USU Remote
Module
Wall, shelf, or rack mounted remote module that connects to
the single mode fiber optic distribution line and provides a
single duplex antenna RF distribution connection. This
model covers 800MHz Trunking / iDEN / Public-Safety
Services
(806-824 MHz / 851-869 MHz).
US800C
As above, but this model covers 800MHz Cellular Services
USU Remote
(824-849 MHz / 869-894 MHz)
Module
US900P
As above, but this model covers 900MHz Paging Services
USU Remote
(896-902 MHz / 928-941 MHz)
Module
US1900P
As above, but this model covers 1.9GHz PCS Services
USU Remote
(1850-1910 MHz / 1930-1990 MHz).
Module
US1800G
As above, but this model covers 1.8GHz GSM Services
USU Remote
(1710-1785 MHz / 1805-1880 MHz).
Module
US900G
As above, but this model covers 900MHz GSM Services
USU Remote
(890-915 MHz / 935-960 MHz).
Module
US700PS
As above, but this model covers 700MHz GSM Services
USU Remote
(764-776 MHz in DL / 794-806 MHz in UL).
Module
Note that for each model above there is a model with a "-2" suffix. These extra
models have separate Rx and Tx RF Ports instead of a combined transceiver
(antenna) port.
US-PS01
Power supply for 1 US remote module.
LNKFIB-H03
Headend Module
LNKFIB-H04
Headend Module
1-2
This is a 1U high, 19" rack-mount module providing low
signal level interfacing between Headend RF modules and 8
pairs of single mode fiber optic distribution lines. The 8 fiber
optic pairs are in two groups of four, with the RF connections
combined inside the module in those groupings.
This is a 1U high, 19" rack-mount module providing low
signal level interfacing between Headend RF modules and 4
pairs of single mode fiber optic distribution lines. The RF
connections for the 4 fiber optic pairs are combined inside
the module.
DCM000000104 Rev Q
Typical Block Diagram
1.3 Typical Block Diagram
Green Power On LED
Micro-Controller
Circuitry
Red Fault LED
CAN Interface
To Head-End
RS232 Interface
To PC
RF O u t "A"
Photod etectors & PreAmps
SM F.O . In
(PI N Diodes)
W ith UpLink G ain Control
Fault Relay
RF Inpu t "A"
L aser Dio d e
SM F.O . O ut
(Lasers)
PreAmp
Power Supply
120 / 240 VAC
RF O u t "A"
Photod etectors & PreAmps
SM F.O . In
(PI N Diodes)
W ith UpLink G ain Cont rol
RF Inpu t "A"
L aser Dio d e
120/240 VAC
SM F.O . O ut
(Lasers)
PreAmp
Figure 2 Typical Block Diagram
In the LNKFIB-H03 Headend module, the eight fiber optic pairs are in two banks (A & B) of four, with
the RF connections combined inside the module in those groupings. The LNKFIB-H04 is identical, but
with one bank of four removed.
Each of the groups of four consists of a single RF Input feeding a single Laser Transmitter split optically
to four fiber optic outputs. The four matching fiber optic Inputs each go to their own photodiode receiver,
followed by a 0 to -15dB digitally controlled attenuator providing uplink gain control. The RF signals
from the four digital attenuators are combined into a single RF output.
The group of four RF input and output combining inside the module alleviates the need for external
combining / splitting.
DCM000000104 Rev Q
1-3
US Remote Typical Block Diagram
Figure 3 US Remote Modules
The US series remote modules have a fiber optic transceiver pairs, downlink and uplink filtering,
and a downlink RF power amplifier.
1-4
DCM000000104 Rev Q
Chapter 2
Mounting
2 Introduction
This chapter contains mounting information for the LinkNet Uniserv Unit RF-FIBER Interface and
Remote Modules.
2.1 LNKFIB-H03 and LNKFIB-04 Headend Modules
These headend modules are intended for mounting in standard 19” racks.
2.2 US Remote Modules
The US remote modules may mount upon horizontal or vertical panels made of either wood or
metal. If mounted on vertical panels, they must be mounted sideways so that the fiber optic and
electrical connections do NOT face either up or down. The Remote Modules are secured with six
mounting screws or bolts as shown...
Figure 4 US Remote Modules Mounting
DCM000000104 Rev Q
2-1
Power Supply Module and Mounting
The US-PS01 power supply is a combination of a modular switching power supply and a
mounting bracket, also intended to mount upon horizontal or vertical panels made of either wood
or metal.
Figure 5 Power Supply Module and Mounting
2-2
DCM000000104 Rev Q
Chapter 3
Connections
3 Introduction
This chapter contains connection information for the LinkNet Uniserv Unit RF-FIBER Interface
Modules.
It is important to perform the following:
•
•
Carefully read all material in this chapter prior to equipment installation.
Review any government and local codes as they apply to your installation.
3.1 Connections
Figure 6 LNKFIB-H03 Headend Module (Front)
Figure 7 LNKFIB-H03 Headend Module (Rear)
The LNKFIB-H03 Headend has two downlink RF Inputs providing the signal for eight downlink optical
outputs arranged as groups of four, "A" and "B". It also has eight uplink optical inputs, combined in two
groups of four, providing RF outputs "A" and "B". The RF and optical connections are all on the rear
panel. The group of four RF input and output combining inside the module alleviates the need for
external combining / splitting.
Figure 8 LNKFIB-H03 Headend Module Drawing (Rear)
The CAN, RS232, and Fault Relay Interface connections are all on the front panel. Their
connections are;
RS232 Connection:
The RS232 Port is for interfacing to a PC via a Null-Modem DB9 female to female cable,
and operates at 9600 baud, 8 bits, no parity, and 1 stop bit. It is a 3-wire connection.
DB9 Pin #
DCM000000104 Rev Q
Signal
RS232 Receive
RS232 Transmit
Ground
3-1
US Remote Module Connections
User I/O Connection:
This Connection is via a standard 15-pin female D-Sub connector on the side of the
enclosure...
DB15 Pin #
Signal
CAN High
CAN Low
CAN Common (Ground)
Fault Relay Common
Fault Relay - Closed for Fault
Fault Relay - Open for Fault
The Form-C Relay is rated at 30 VDC @ 1 Amp or 30 VAC @ 0.5 Amp.
Refer to the DCM000000103 CAN Wiring Guide.
3.1.1 US Remote Module Connections
Figure 9 US Remote Module Connections
The Remote Module has 1 or 2 SMA RF connections..
RF Xcvr:
For the normal (non -2) models there is a single RF transceiver port
used to connect to a distributed indoor antenna system.
RF Tx & Rx:
For the 2-Port (-2) models there are RF transmit and receive ports
used to connect to external filtering and combining, then to a
distributed indoor antenna system. Consult Powerwave for details.
Fiber-Optic Ports:
There are two SC/APC single mode fiber optic connections for cabling
to the Headend.
RS232 Connection:
There is a RS232 connection via standard 9-pin female D-Sub connector.
It is wired as;
DB9 Pin # Signal
DCD in
Transmit
Receive
Ground
DSR
CTS in
RTS out
RI in
RS232 is for interfacing to a PC via a straight-through DB9 male to
female cable, and operates at 9600 baud, 8 bits, no parity, and 1 stop
bit.
USB Connection: To use the USB port on the USU, a virtual COM port driver must first be
installed using the driver CD-ROM shipped with the USU. This virtual COM
port driver will create a new COM port that will use the next available port
number. For example, if your PC has two COM ports, the virtual COM port
driver will create a COM3 port. Follow the instructions on the CD to install the
driver.
3-2
DCM000000104 Rev Q
User I/O Connections
3.1.2 User I/O Connection
This is a standard 15-pin female D-Sub connector.
DB15 Pin #
10
11
12
13
14
15
Signal
CAN High
CAN Low
CAN Common
Fault Relay - Closed for Fault
Fault Relay – Common
Fault Relay - Open for Fault
+28 VDC at up to 0.5 Amp
Ground
Aux. In #1 (contact to ground)
Aux. In #2 (contact to ground)
Aux. In #3 (contact to ground)
Aux. Out #1 (open collector)
Aux. Out #2 (open collector)
Aux. Out #3 (open collector)
The Form-C Relay is rated at 30 VDC or 30 VAC @ 0.5 Amp. The auxiliary lines are under custom
software control. Refer to the DCM000000103 CAN Wiring Guide.
Note!
The ASY00420 DB15 Breakout Kit may be ordered to bring the User I/O connections
out to screw terminals for easy wiring.
Figure 10 ASY00420 DB15 Breakout Kit
This 4" x 4" board mounts onto four 3.5" x 3.5" #6 locations, and includes a 6' DB15 to DB15
cable.
At the rear of the remote unit are the power and battery connections...
Figure 11 Remote Module (Rear View)
DCM000000104 Rev Q
3-3
Headend to Remote Interconnections
3.2 Headend to Remote Interconnects
The single mode fiber optic interconnections between the Headend and Remote modules are to be
made in whatever manner suits the system configuration. For the CAN Network connections please
refer to DCM000000103.
3.3 Fiber Optic Connections
3-4
•
All Fiber Optic Cabling must use 9/125 or similar Single-Mode (yellow jacketed) highquality cable. This cable should typically have less than 0.5 dBo (optical dB) insertion loss
per kilometer.
•
The cable manufacturer's minimum bend radius must be observed.
•
Most Powerwave products use SC/APC connectors. Note that the "APC" is critical. These
are angle-polished connectors and are required to reduce reflections.
•
Fiber-Optic Patchcords should be avoided; Fusion-Splices are preferred to reduce
reflections.
•
Fiber-Optic Connectors, both on cables and equipment, should always have their dust
caps in place when not in use. The connector tips must be kept clean and scratch free,
and should always be cleaned properly before being connected.
•
Optical Reflections back into laser diodes cause a disturbance in the lasers gain cavity
creating noise and distortion. An OTDR or other fiber optic instruments should be used to
check optical reflections. Fiber optic return loss should be less than -50 dBo.
•
There is a 2 to 1 Relationship between optical loss and RF loss. One dBo (optical dB) of
optical loss corresponds to 2 dB of RF loss.
DCM000000104 Rev Q
Chapter 4
Remote Module
4 Introduction
This chapter contains specifications and information for the LinkNet Uniserv Unit RF-FIBER
Remote Modules.
4.1 Power for the Remote Module
The US remote module may be powered by any source of negative ground +28VDC power
capable of delivering 1 Ampere. This includes the optional single US remote module US-PS01
power supply.
4.2 Battery Backup of Remote Module
If the US remote module is being used without a battery it must be configured to NOT use a
battery. Without a battery the USU will shut down or reset with any disruption to the AC power.
When power is re-established the system will restart automatically. External batteries may be
connected using the CAB000000055 Battery Cable. The USU has a built-in battery charger that
will automatically recharge the attached battery.
Refer to DCM000000102 "Battery Backup Manual".
For Battery Backup purposes:
Vbat = 24 VDC
DCM000000104 Rev Q
Ic = 0.1 Ampere
Id = 0.75 Ampere
4-1
Module Specifications
4.3 Module Specifications
Table 2 Module Specifications
Frequency Bands
Maximum Downlink Power
Maximum Uplink Power
Combined at any Headend RF Output.
Includes the 4-way combiner loss.
Downlink Gain
from Headend to the Remote Module
Antenna Port, assuming 0dB Fiber-Optic Link
Downlink Gain Ripple
Uplink Gain
from Remote Module Antenna Port to Headend,
assuming 0dB Fiber Optic Link
Uplink Gain Ripple
Max RF Input without Damage
To Headend Units
Uplink Noise
at Headend Unit from any Remote Module Antenna
Port assuming 0dB Fiber Optic Link
Isolation
+10 dBm
< -130 dBm/Hz
(with Uplink Gains Balanced)
Consult Powerwave Engineering Services
(depends upon Headend Filtering)
Duty Cycle
Continuous
Spurious Outputs
-20 dBm max per Remote Module Antenna Port
when operated as per Derating Chart
Optical Power Level
Laser Warning: Invisible Laser Radiation emitting
from optical connector. Avoid direct exposure to
beam. 150 mW max. @1300nm. Class IIIb. Product
complies with 21 CFR 1040.10 and 1040.11.
Optical Path Loss
2 dBO Maximum
Group Delay
<2uS, NOT including Fiber Optic Link
Connectors
Headend Module Power Supply Requirements
Remote Module Power Supply Requirements
US-PS01 Power Supply Requirements
SC/APC Fiber Optic, SMA (50Ω) RF
D-Sub, USB, Data & Control
120/240 VAC, 50/60 Hz,
75 VA Typical, 90 VA Max.
28 VDC from external Power Supply, 0.75A Max
and 24VDC "Gell-Cell" Battery Backup Option
120/240 VAC, 50/60 Hz,
30 VA Typical, 70 VA Max.
Configuration Options
Either via the USU network and a Gateway Module,
or via a PC and an RS-232/USB Connection.
Operating Temperature Range
-20 to +50oC
Operating Humidity Range
5 to 90% RH, Non-Condensing
Headend Module Size & Weight
1U High 19” Rack Unit, 14" Deep, 16 lbs Max
Remote Module Size & Weight
FCC Identifiers
Industry Canada Certifications
4-2
Refer to Model Chart
+38 dBm IP3 Min. iDEN/Cell/Page/GSM900/700PS
+36 dBm IP3 Min. for PCS, GSM1800
(see Remote Module Carrier De-Rating Chart)
+4 dBm IP3 Min., iDEN/Cell/Page/GSM900/700PS
0 dBm IP3 Min., PCS/GSM1800
(7 to 12dB higher for LNKFIB-H01)
+20 dB after Gain Adjustment
Typical range before Gain Adjust is
+20 to +35 dB for 700-900 MHz Bands
+20 to +31dB for 1.8-1.9 GHz Bands
(See Gain Adjustments)
+/- 3.5 dB over entire Band
+20 dB after Gain Adjustment
Typical range before Gain Adjust is
+20 to +32 dB for 700-900 MHz Bands
+20 to +32dB for 1.8-1.9 GHz Bands
(See Gain Adjustments)
+/- 3.5 dB over entire Band
2.75” High, 9.25” Wide, 11” Deep, 6 lbs Max
70mm(H), 235mm(W), 280mm(D), 2.7Kg Max.
FCC: H6M-US800TP FCC: H6M-US800C
FCC: H6M-US900P FCC: H6M-US1900P
IC: 1541A-US800TP IC: 1541A-US800C
IC: 1541A-US900P IC: 1541A-US1900P
DCM000000104 Rev Q
Remote Module Per-Carrier Derating
4.4 Remote Module Per-Carrier Derating
All signals that fall within a given Pass-Band range will “share” power amongst them. A multiple
channel effect is intermodulation, signals produced from non-linear effects between the intended
channel signals. This intermodulation may cause interference to receiving equipment. In order to
minimize intermodulation signals, power de-rating must be applied. In the USA there are FCC
Intermodulation Specifications published in the EIA Standard PN2009. Further derating is also required
to maintain the integrity of complex digital communications signals. The table below gives the maximum
per channel output levels allowed as a function of the number of channels. Note that depending on the
actual input levels, the gain may need to be reduced to comply with the above regulations.
The figures shown are to the nearest dB.
Table 3 Per-Carrier Derating
iDEN / Cellular / Paging/GSM900/700PS
1.9 GHz PCS/1.8GHz GSM
(effective IP3 = +38dBm)
(effective IP3 = +36dBm)
Number of
Carriers
Power per
Carrier per
Antenna
Port (dBm)
Total Power
per Antenna
Port (dBm)
Number of
Carriers
Power per
Carrier per
Antenna
Port (dBm)
Total Power
per Antenna
Port (dBm)
FM
Dig
FM
Dig
Digital
Digital
Digital
+24
+17
+24
+17
+15
+15
+15
+15
+18
+18
+13
+16
+14
+13
+18
+18
+11
+16
+13
+11
+19
+17
+9
+15
+12
+9
+19
+16
+8
+15
+11
+8
+19
+16
+7
+15
+10
+7
+18
+15
+6
+14
+9
+6
+18
+15
+5
+14
+8
+5
+18
+15
+4
+14
10
+7
+4
+17
+14
10
+3
+13
15
+5
+2
+17
+14
15
+1
+13
20
+3
+16
+13
20
-1
+12
25
+2
-1
+16
+13
25
-2
+12
30
+1
-2
+15
+13
30
-3
+12
Note!
DCM000000104 Rev Q
The above levels are shown for both FM and Digital (CDMA, TDMA,
GSM, & iDEN) Signals for 700-900 MHz, and Digital only for 1.9 GHz
PCS/1.8 GHz GSM. Some combinations may require additional Derating.
Consult Powerwave Technologies Inc. for further information.
4-3
(This page intentionally left blank)
4-4
DCM000000104 Rev Q
Chapter 5
Operation
5 Introduction
This chapter contains operational and standard safety information for the LinkNet Uniserv Unit
RF-FIBER Interface Modules.
5.1 Operation
Normal operation for both USU Headend and Remote modules:
•
•
•
POWER / OPERATING - GREEN when the module is operating.
FAULT – Red if the internal diagnostics detect a problem.
LASERS ON - GREEN when any one of the lasers are operating.
5.1.1 Fault Indications
Each module continuously performs internal diagnostics. If a problem is detected it will activate its
Red Fault LED and Fault Relay. Faults detected include;
•
•
Over Temperature.
Misc. Internal Faults.
Detailed faults are detected by the optional Gateway Module. Details may also be determined via
an RS232 connected Terminal Emulator using the LIST command.
5.1.2 Configuration and PC Commands
It is possible to re-configure modules in the field, either with a personal computer (PC) or via the
optional LinkNet Gateway Module. To use a PC it is necessary to connect the DB9 RS-232/USB
connector on the module to a standard DB9 RS232/USB connector on the PC. On the PC a
terminal emulation program such as HyperTerminal is used to communicate to the LinkNet
module. The settings are 9600 baud, 8 bits, no parity, and 1 stop bit. Commands are one or two
words followed by pressing Return. Commands may be given in upper or lower-case. Available
commands are listed below for each module.
Headend Modules:
ACCESS USER:
HELP or ?:
LIST:
VER:
ENABLE 1 or 0:
DIGATTN x yyy:
Required as a simple password to gain access to customer settable
parameters and diagnostics; This times-out after 10 minutes, and may
have to be retyped.
Displays a list of Available Commands.
Displays Current Settings and Status Faults, Etc.
Display the current Version of Software.
Enables or Disables the Module.
Displays or Sets the Uplink Gain Reduction yyy, which is in tenths of a
dB. The Optical to RF Path being set is x, which is;
x=0
x=1
x=2
x=3
x=4
x=5
x=6
x=7
DCM000000104 Rev Q
is for Uplink Optical to RF Path A1
is for Uplink Optical to RF Path A2
is for Uplink Optical to RF Path A3
is for Uplink Optical to RF Path A4
is for Uplink Optical to RF Path B1
is for Uplink Optical to RF Path B2
is for Uplink Optical to RF Path B3
is for Uplink Optical to RF Path B4
5-1
Configuration and PC Commands
Remote Modules:
ACCESS USER:
HELP or ?:
LIST:
VER:
ENABLE 1 or 0:
DLGATTN ###:
Required as a simple password to gain access to customer settable
parameters and diagnostics; This will time-out after 10 minutes, and may
have to be re-typed.
Displays a list of Available Commands.
Displays Current Settings and Status Faults, Etc.
Display the current Version of Software.
Enables or Disables the Module.
Displays or Sets the Downlink Gain Reduction, which is in tenths of a dB.
Please consult Powerwave Technologies Inc. for further support.
5.2 Gain Adjustments
Gain adjustment is necessary to compensate for the variations in the fiber optic components of the
Headend and Remote modules. This must be done after modules are deployed in a system, and
anytime a module is replaced. The adjustments are on an individual RF path basis, and each path is
adjustable downwards in 1dB steps up to -15dB.
It is recommended that these adjustments be performed with the aid of a Signal Generator and
Spectrum Analyzer.
Uplink Gain:
The uplink gain is adjusted at the Headend module on an individual RF path basis. Please refer to the
Headend DIGATTN commands in the Configuration and PC Commands section. All DIGATTN
values are set to 0 (Maximum RF Gain). While monitoring the RF gain via measurements, the
individual gain paths are adjusted downwards with the DIGATTN command to meet the specified gain.
This will optimize/balance both gain and noise.
Downlink Gain:
The downlink gain is adjusted at the remote module an individual RF path basis. Please refer to the
remote DLGATTN commands in the Configuration and PC Commands section. All DIGATTN values
are set to 0 (Maximum RF Gain). While monitoring the RF gain via measurements, the individual gain
paths are adjusted downwards with the DLGATTN command to meet the specified gain. This will
optimize/balance both gain and noise.
5.3 Signal Level Adjustments
Signal level adjustment is necessary to ensure that the downlink RF carriers transmitted via the remote
modules are not generating undesired intermodulation products, nor are they being distorted beyond
use. Refer to the earlier section on Remote Module Per-Carrier Derating.
It is recommended that these adjustments be performed with the aid of a Signal Generator and
Spectrum Analyzer, and that they be done AFTER the gain adjustments.
Adjust the downlink interface amplifiers and/or attenuators between the base stations and the Headend
modules (see the Typical Application drawing) to achieve the specified derated per-carrier level.
Uplink signals should be monitored as they feed into the base station, this is usually a site specific
requirement.
5-2
DCM000000104 Rev Q
Chapter 6
Antenna Installation
Introduction
This chapter contains antenna installation and warning information for the LinkNet Uniserv Unit
RF-FIBER Interface Modules.
6.1 Antenna Installation
• All Antenna installation to be performed by qualified technical personnel only.
• Antenna installation instructions and locations below are for the purpose of satisfying
FCC RF Exposure Compliance requirements.
•
The In-Building Antenna or Antennae connection is via a coaxial cable distribution system
connected to the fixed-mounted Indoor Antennae. The Indoor Antennae are simple 1/4
wavelength (0 dB Gain) types. These antennae are to be installed such that no person
can touch the antenna, or approach within 0.2 Meters.
ANTENNA INSTALLATION
CAUTION
ALL ANTENNA INSTALLATION IS TO BE PERFORMED BY QUALIFIED TECHNICAL PERSONNEL
ONLY.
ANTENNA INSTALLATION INSTRUCTIONS AND LOCATIONS ARE FOR THE PURPOSE OF
SATISFYING FCC RF EXPOSURE COMPLIANCE REQUIREMENTS, AND ARE NOT OPTIONAL.
ALL IN-BUILDING ANTENNAE INSTALLATIONS MUST BE SUCH THAT NO PERSON CAN TOUCH
THE ANTENNAE, OR APPROACH CLOSER THAN 0.2 METERS.
Please consult Powerwave Technologies Inc. for assistance as required.
6.2 FCC Information to Users
• This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications. Operation of this equipment in
a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
CAUTION
CHANGES OR MODIFICATIONS NOT EXPRESSLY APPROVED BY POWERWAVE
TECHNOLOGIES INC. COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT.
DCM000000104 Rev Q
6-1
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6-2
DCM000000104 Rev Q
Chapter 7
Laser Safety
7 Introduction
This chapter contains laser safety information for the LinkNet Uniserv Unit RF-FIBER Interface
Modules.
7.1 Laser Safety
• CAUTION – use of controls or adjustments, or performance of
procedures other than those specified herein may result in
hazardous radiation exposure.
•
•
•
•
•
This laser product is certified as a CLASS I laser product to the requirements of the
US Federal Product Performance Standard for Laser Products contained in the
regulations in 21 CFR Subchapter J. Class I laser products are not considered to
be hazardous.
This laser product incorporates a Class IIIb laser module, which generates levels of
invisible laser radiation that may be hazardous. However, this machine
incorporates protective housing and optical fibers in the machine design such that
there is no exposure or human access to laser radiation when the product is
properly installed.
All optical output connections to the LinkNet Uniserv Unit (USU) must either have
an optical fiber connected or be capped.
UNDER NO CIRCUMSTANCE shall attempts be made to operate this system
without the optical fibers connected or with caps removed from the optical output
connectors.
All service to the LinkNet UniServ Unit (USU) shall be performed by Powerwave
Technologies Inc. service personnel, their authorized agents, or personnel trained
by Powerwave Technologies Inc.
DCM000000104 Rev Q
7-1
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7-2
DCM000000104 Rev Q
Chapter 8
Return for Service
8 Introduction
This chapter contains return for service and parts & accessories information for the LinkNet
Uniserv Unit RF-FIBER Interface Modules.
8.1 Return For Service Procedure
Please contact Powerwave Technologies Inc. for a copy of the Standard Product Warranty. When
returning products to Powerwave Technologies Inc., the following procedures will ensure optimum
response.
8.1.1
Obtaining An RMA
A Return Material Authorization (RMA) number must be obtained prior to returning equipment to
the factor for service. Please contact our Repair Department at +1 (714) 466-1000 to obtain this
number, or FAX your request to +1 (714) 466-5816 or mailto:RMA@PWAV.COM. Failure to
obtain this RMA number may result in delays in receiving repair service.
8.1.2
Repackaging For Shipment
To ensure safe shipment of the amplifier, it is recommended that the original package designed
for shipping the amplifier be reused. If it is not available, contact Powerwave Technologies Inc.
Customer Service Department for packing materials.
8.2 Parts and Accessories
Parts and accessories for the LinkNet UniServ Unit RF-FIBER Interface Modules may be purchased by
contacting Powerwave Technologies Inc. at 1-888-PWR-WAVE. When ordering a replacement part,
please provide model number, serial number and software version number.
DCM000000104 Rev Q
8-1

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