P Com PMP-04-000 Remote unit User Manual 8

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Document TypeUser Manual
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Date Submitted1999-06-02 00:00:00
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Document Title8

rain-am
No. 65135 Revision A January 1999
Tel-Link
Point-To-Multipoint
System Description Manual
Every effort has been made to ensure that the information contained herein iS complete and accumte. However. the
information contained in this manual is subject to change without notice and P-COM reserves the right to change
specifications of hardware and software without prior notice and assumes no responsibility for any damages resulting
from any errors or omissions in this manual. P-COM‘s obligations regarding the use or application of its products shall
be limited to those commitments to the purchaser set forth in its Standard Terms and Conditions of Sale for a delivered
product.
© Copyright 1998, P-COM, Inc. All rights reserved. This document contains information Confidential and Proprietary to
P-COM, Inc. No part of this publication may be reproduced or transmitted by any means and disclosure or distribution
of its contents outside the company in any form without written consent from P-COM is strictly prohibited.
Issued by P-COM. Inc.
1801 Penn Street, Melbourne, Florida 32901 Printed in US-A
PHZCIm
January 1999
ThIs Page Intentionally Lefi Blank
M—
li 53135 Tel-Llnk Pnlnt-To-Multipoinl, Rev. A
nlcnm
1.0
2.0
3.0
4.0
68135 TeI~Link Foint-To~Mu|ti’point, Rev. A
January 1999
Tel-Link Point-to-Muitipoint
System Description Manual
Contents
-A
General Information
Manual Organization ..
FCC Requirements Summary
Requesting Changes
Special Notations.
General Safety Reminders
1.6 P-COM PMP Terminology.
Tel-Link Point-to-Muitipoint (PMP) System Overview .....
inh'miuLu
_. pinto;
2.1 introduction
2.2 System Architecture.
2.2.1 Base Station Terminal Components.
2.2.2 Remote Terminal Components
2.2 3 PMP Network
Base Station Terminal Theory of Operations .............
3 1 introduction. .........
3.2 Sector Terminal indoor Unit (iDU)
3.2.1 Sector Controller (P/N 28520 -3
3.2 2 Modulator (P/N 2230202) 3-4
3.2.3 Demoouiator (P/N 2&023- 3-5
3.2.4 6 x T1 Network interface Card (P/N 25530) 3-7
3 2.5 Power Supply......, . 3»8
3 2.5.1 Input Power 3—8
3 2.5.2 Hot Plug-in mpact on ower Supply ‘11
3.3 Hub IF Combiner ...............
3.4 Sector Terminal Outdoor Unit (ODU)
3.4.1 TX IF Module.
3.4.2 RX iF Module
3.4.3 Controller PCB
3.4.4 Signal Flow-Transmit Direction
3.4.5 Signal Fiow-Receive Direction
3.5 Antenna .....
3.6 iF Cable Run.
Remote Terminal Theory of Operations“.
4.1 Introduction. ..
42 Remote Terminal Indoor Unit (iDU)
4.2.1 Remote iDU Circuit Boards (P/N 48070)
4.2.2 Modulator (P/N 28020-1)
4 2 3 Demoduletor (PIN 28023-1)
4 2 4 6 x T1 User Interface Module (P/N 23530)
4.2.5 Power Supply
4.2.6 Hot Plug-in impact on Power Supply
4.3 Remote Terminai Outdoor Unit (ODU).
4.3.1 TX iF Module
4.3.2 RX IF Module
4.3.3 Controller PCB.
”l E D m mm
5.0
6.0
Glossary .........................
4.4
4.5
Network Management
Specifications
6.1
6.2
6.3
6.4
6,5
6.6
.4-14
.4-14
.4-15
.4-15
4.3.4 S|gnal Flow-Transmit Direction.
4.3 5 Signal FIow»Receive Direction
Antenna .. ..
lF Cable Run .
General .
Sector Terminal Subsystems
6.2 1 Sector Terminal Antenna.
6.2.2 Sector Terminal Outdoor Unit.
6.2.3 IFL Cabling.
6.2.4 Sector Terminal Indoor Unit Chassis
6.2.5 Sector Terminal Controller
6.2.6 Sector Terminal Modulator.. -8
6 2.7 Sector Terminal FDMA Demodulator 8
6.2.8 Sector Terminal Power Supply ~9
62.9 Network Interface Card (NIC -9
Hub lF Comomer 6-10
Remote Terminal 640
6.4 1 Antenna. . 640
5 4.2 Remote Terminal Outdoor Unit 6-71
6.4 3 IFL Cabling. 5-13
6.4 4 Remote Terminal Indoor unit Chassi 6-14
6 4 5 Remote Terminal Controller. 6-15
SA 5 Remote Terminal FDMA Module or 5-16
6.4.7 Remote Terminal Demodulator
6.4 8 User Interface Module (UIM)...,
6 4.9 Remote Terminal Power Supply.
Environment Specifications.
Certifications...
ii
68135 Tel-Link Point-Tc-Multipoint, Rev. A
p ’ E D In January 1999
List of Figures
Figure 2-1 - Simplified F‘MP System Architecture
Figure 2-2 — Base Station Site ......
Figure 3-1 — Sector Indoor Unit Chassis.
Figure 3-2 - Sector Station IDU Interior
Figure 3-3 - iDU Block Diagram
Figure 3-4 — Base Station Power Supplies.
Figure 3-5 — AC Power Connector
Figure 3-6 — DC Power Terminal Bloc
Figure 3-7 _ IF Combiner 120VAC.
Figure 3»8 , IF Combiner 48 VDC .
Figure 38 ~ Hub IF Combiner Block Diagram ............
Figure 3-10 — Sector Terminal Outdoor Unit (Redundant Configuration).
Figure 3-11 — Sector Terminal ODU & Baseplate .......
Figure 3-12 — Signal Distribution in the IDU/ODU System.
Figure 3-13 — Sector ODU Block Diagram ......
Figure 4-1 — Remote Terminal Indoor Unit Chassis.
Figure 4-2 — Logical/Physical Slot Numbers for Remote Terminal.
Figure 4-3 — lDU Block Diagram ,.
Figure 4-4 — Remote Terminal Power Supplne
Figure 4-5 — Remote Terminal Outdoor Unit With 30 cm Parabolic Antenna
Figure 4-6 -— Remote ODU Baseplate ................
Figure 4-7 — Signal Distribution in the lDU/ODU System
Figure 4-8 — Remote ODU Block Diagram
Figure 5-1 - Bit Error Rate Performance ..
68135 Tel-Link Point-To-Multipoint, Rev. A
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List of Tables
Table 3-1 - TX and RX Rate Chart.
Table 3-2 — Base Stalion Power Supp y Con lguration Matrix.
Table 3-3 - LMR-400 Performance Characteristics
Table 3—4 - IFL Signals ...............
Table 4-1 - TX and Rx Rale Chan.
Table 4-2 — Remote Power Supply Configura
Table 4-3 - LMR»4OO Performance Characterlsncs
Table 444 — IFL Srgnals ..
Table 6-1 — Symbol Rate
Table 6-2 — IFL Signals
Table 6-3 — IFL Signals ..
January 1999
“M
w 68135 Tel-Llnk Foint-To-Mullipoint. Rev. A
p } E a m January 1999
1.0 General information
This manual describes the features and specifications of the Tel-Link Point-to-Multipoint (PMP)
System. This manual is intended for personnel who are responsible for installing and testing the
Tel-Link Point to Multipoint system. The user should keep this manual next to the system at all
times.
For further assistance. contact P-COM’s Technical Assistance Center at (407) 674-3699.
1.1 Manual Organization
This manual is part of a set of Tel E D m January 1999
3.2.4 6 x T1 Network Interface Card (PIN 28530)
The T1 Network interface Card (T1-NlC) provides up to six (6) T1 interfaces. Each 6 x T1 NIC is
used at the Sector Terminal to allow the interconnectivity of up to six full duplex T1 circuits. Each
T1 port at the Sector Terminal is mapped and routed to a T1 port at a Remote Terminal. All data
bits from the Sector Terminal are transported to the Remote Terminals - the transport is clear
channel. Therefore, the port supports any type of T1 framing transparently.
Features:
- Six (6) DSX interfaces
0 AMI/BSZS encoding
- Signal formats include SF/D4 or ESP
0 Line build-out to 655 feet (218 meters)
. Loopback: far-end, local
- Alarms: loss of signal. AIS. red alarm, yellow alarm
- Statistics: line code violations. framing errors, parity errors, FEBE events
- Hot pluggable
- Remote provisioning and software updates
T1 Network Interface Card LED front-mounted indications:
- RED-SOLID - System is non»operational
. RED-BLlNKlNG - Por‘t(s) mis-conflgured
. GREEN-SOLlD - Normal operation
3-7
68135 Tel-Link Pcint-To-Mullipoint, Rev. A
p b E D m January 1999
3.2.5 Power Supply
The Sector Terminal IDU may be configured to operate on AC or DC input power. The power
supply modules and input power connector are identified in the Table 3-2,
Table 3-2 — Sector Terminal Power SquIy Configuration Matrix
Model Number
XXXXXX
Power Supply Type
Universal AC Input
Voltage (90-260 VAC.
47-63 Hz)
40—56 VDC lnput XXXXXX
Voltage
3.2.5.1 Input Power
AC Power A rear View of the Sector Terminal lDU configured to operate on AC input
power is shown in Figure 3-4, Units that operate from AC power have an
IEC 320 power connector on the rear panel of the lDU (refer to Figure 3-5).
5mm.
3 M. w.
Figure 3-4 - Sector Terminal (DU Rear View (AC Input Power)
3-8 68135 Tel-Link Point-To-Multipoint, Rev. A
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January 1999
O O
Figure 3-5 — AC Power Connector
M—
68135 Tel-Link Point-T0»Multipoint. Rev. A 3-9
p b E a m January 1599
DC Power A rear view of the Sector Terminal iDU configured to operate on DC input
power is shown in Figure 3-6. Units that operate from DC power have a 4-
pin plugabie terminal block on the rear panel of the IDU (refer to Figure 3-
7),
5mm “W
WWW g mummy
Figure 3-7 - DC Power Terminal Block ’
3-10 68135 Tei-Link Polm-ToMultipoim, Rev. A I
F't E D m m,
3.2.5.2 Hot Plug-In Impact on Power Supply
in addition, each signal circuit card power input includes a reverse blocking diode along with bulk
filtering components and a fuse on each supply voltage. If a circuit card fails with a short to
ground on one of the power supplies, its fuse will open and allow the rest to recover and reset.
The reverse blocking diodes prowde protection from momentary power supply drops while “hot
plugging” new circuit cards into the backplane, They will not protect the system from momentary
disruption in the case of a power supply fault to ground that results in an open fuse.
3.3 Hub lF Combiner ,
The Hub IF Combiner is necessary to combine multiple Sector Terminal signals and to route them
to a single Outdoor Unit (ODU). This unit is capable of combining up to four Sector Terminal
signals. Sector Terminal signals include Transmit IF and Receive lF signals along with carrying |
telemetry information. After these signals enter the HUB lF Combiner they are coupled together
with a high stability frequency oscillator and 48 Vdc power supply. The high stability frequency I
oscillator operates as a system reference for the ODU and its control circuitry. The 48 Vdc
voltage is the supply voltage for the ODU. The Sector Terminal IF signals, the reference signals,
the telemetry information and the 48 Vdc are all distributed to the ODU by a single cable. I
On the back panel of the Hub IF Combiner is a switch that enables the user to select whether the
unit is operating Link A or Link B. On the front panel a LED will be illuminated to identify which
configuration has been selected,
The HUB lF Combiner is powered by AC (refer to Figure 3-7), or DC (refer to Figure 3-8) if the I
unit was ordered with the optional DC configuration.
Figure 3»7- HUB lF Combiner Rear View (AC Input Power) I
68135 Tel-Link Foint-To-Multlpoint, Rev. A 3-11
January 1999
Figure 3»8 — HUB IF Comb/ner Rear View (DC Input Power}
68135 TsI-Link Point-To-Mulupolnl, Rev. A
p } E D "1 January 1999
Figure 3—9 is a block diagram that represents the signal flow through the Hub IF Combiner. l
y“
n: ma
REFERENCE
r covets!
Flam iDU
Figure 3—9 - Hub IF Combiner Block Diagram
3.4 Sector Terminal Outdoor Unit (ODU) .
The Sector Terminal Outdoor Unit (ODU) is a single integrated enclosure containing an RF
components mounted directly to a dual tensed—horn antenna. Antennas have azimuth beamwidth '
angles of 15“, 22.5“, 45° or 90“.
Each Outdoor Unit (ODU) is a self contained radio transmitter weighting approximately 132
pounds (6 Kg) attaching directly to an antenna by flexible waveguide to a Sector Terminal
antenna. The ODU's are designed to provide frequency diversity, and installed to transmit on
either horizontal or vertical polarity.
The ODU transmits modulated RF signals to the Remote Terminals and receives RF signals from
the Remote Terminals via line-of—sight wireless communication links. Due to rain attenuation
considerations operating at 38 GHZ, both the Sector Terminal and the Remote Terminals receive
and transmit on the vertical polarization. For operating frequencies of 24 and 26 GHz, orthogonal
polarized antenna feeds are used.
Based on the operating RF frequency in use. ODUs are available to operate in the 10 GHz, 24
GHz, 26 GHz, 28 GHz, 31 GHz and 38 GHz bands.
68135 Tel~LInk Point-To-Multlpolnt, Rev. A 3-13
p > E D m January 1999
Figure 3-10 illustrates the RF/Antenna configuration for the Sector Terminal Outdoor Unit. The
packaging includes the following components:
- ODU Enclosure
0 RF Electronics
' ODU Controller Card responsible for controlling and monitoring ODU functions and for
interfacing With the DU
The ODU is frequency agile so that the same ODU can typically be used throughout the entire
allocated frequency band. Subsequently, this reduces sparing levels.
The ODU meets all National Electrical Code requirements pertaining to lightning and power
transients and meets or exceeds FCC and ETSl regulations pertaining to conducted and radiated
Electromagnetic Emissions.
The ODU is sealed against the environment and is capable of functioning in ambient
temperatures ranging from -40°C to +60°Q with up to 100% relative humidity. The ODU can
survive steady state winds of 40 m/s with gusts to 55 m/s (89 mph/123 mph).
Figure 3-70 — Sector Terminal Outdoor Unit (Redundant Configuration)
3-14 68135 Tel-Link Point-Tu-Multipoint, Rev. A
p b E D m January1999
Figure 3-11 illustrates the interior and interface baseplate of the Sector Terminal ODUi
Tx
\ Antenna
Alignment
Perl
lF interface
Figure 3-71 — Sector Terminal ODU & Easeplate
The ODU exchanges many multiplexed signals with the lDU through the same cable, and
distributes the necessary signals to the ODU controlleri The ODU receives +48Vdc, a 10 MHz
reference signal, user data modulated onto an IF carrier, and telemetry messages for the Sector
IDU controller all on the same cable. in addition, on the same cable, the ODU transmits received
user data modulated onto another IF carrier and telemetry messages to the lDU (Refer to Figure
342).
Modulated TX lF
+48v DC
Voltage Reg -1 ODU
Telemetrv lo oou — Controller
1D MHZ
Modulated RX IF
<______—__
Telemetry to “DU
Figure 3—12 ~ Signal Distribution in the (DU/ODU System
The ODU Controller sets a slope control signal at power-opt based on the detected cable length.
The Controller also monitors cable length once a second, and mutes the transmitter if a cable [5
not detected. The controller monitors antenna alignment if that function is enabled via the Local
3-15
65135 Tel-Link PDinl-To-Multipolnt, Rev. A
p } E D m Januaryisss
Site Manager (LSM). It also monitors and controls transmitter power if enabled configuration
parameters are stored in on-board NVRAM.
3.4.1 TX IF Module
The TXIF Module up-converts the modulated VHF signal received from the IDU to a C or E Band
signal used to drive the Microwave Module. An internal AGC loop corrects for power variations
related to coaxtal cable length between the IDU and ODU, and provides an analog signal to the
Controller Module for slope correction. Two voltage-controlled attenuators under Controller
Module direction sets the drive power to the Microwave Module to establish the overall ODU
transmitter power,
3.4.2 RX IF Module
The RXIF Module is a dual conversion system that down-converts the C or E Band signal
received from the Microwave Module into an UHF signal passed to the lDU through the coaxial
cable. In addition, the RXIF Module provides gain to amplify signals over a wide dynamic range
guaranteeing a constant signal level is fed through the coaxial cable connecting the ODU to the
IDU. An internal AGC maintains a constant signal level and generates an analog Received
Signal Strength Indicator (RSSI) signal passed to the Controller Module. This signal level is also
available on a Bayonet Nut Connector (BNC) connector for antenna pointing.
3.4.3 Controller PCB
The ODU Controller monitors several ODU PMP link variables and conditions; and either
transmits these to the IDU or internally adjusts levels within the ODU as appropriate.
Communication with the IDU is accomplished by multiplexing and transmitting the signals through
the coaxial cable connecting the two units. One major function of the Controller is to monitor and
adjust transmitting power; ensuring adequate signal strength is achieved. The Controller will not
adjust to unnecessarily high levels that increase the potential for interference with other PMP
stations.
3.4.4 Signal Flow-Transmit Direction
The transmit IF signal from the lDU arrives at the ODU Motherboard where it is extracted by the
multiplexer and routed to the TX IF Module. Simultaneously, the reference signal and telemetry
are extracted and routed to the VCXO and Controller Modules respectively.
The IF signal is up-converted and filtered by the TX IF Module, and routed to the Microwave
Module where it is further up~converted to the output frequency, amplified and filtered. Transmit
power control is applied to the process at the output of the TX IF Module. Sector ODU's route the
Signal via flexible waveguide to the transmit horn of the sector antenna for broadcasting.
3.4.5 Signal Flow-Receive Direction
Signal routing in the receive direction is nearly the reverse of the Signal Flow-Transmit Direction.
Received signals in Sector units are passed from the horn antenna to the Microwave Module
through flextble waveguide. At the Microwave Module signals are amplified by the Low Noise
Amplifier (LNA) and down-converted to the first receive IF, and then sent to the RX IF Module.
The first IF is determined by the frequency programmed into the TX IF Module, plus or minus the
duplex frequency (depending on whether the unit is set to transmit either high or low band). At
the RXIF Module, the receive IF is further down-converted, filtered, amplified and passed to the
Motherboard Module, after A60 is applied, and then multiplexed and fed into the cable
connecting the ODU and IDU. (Refer to Figure 343).
3-16 58135 Tel-Link Point-To-Multipolnt, Rev. A
p} E D "1 January1999
WIG Filter
WIG Filter
Microwave
Module
Controller
LO
SYnthesizer Module Legend
R - Reference
DC- Power
IF, DC, R. T T -Teiemetry
LO - Local
(Cable to DU) Oscillator
09032204
Figure 3~13 — Sector ODU Block Diagram
35 Antenna
The antenna is a lensed-hom antenna. For 24-26 GHZ, two horns are used for transmit and
receive functions. At 38 GHz, a single horn antenna is used. Specific antennae are used for
horizontal or vertical polarizations and for azimuth beamwidths of 15°, 22.5“, 45° or 90”, The
elevation beamwidth is typically 6“.
The antennae are mounted onto a rectangular mounting plate with mounting hinges used to
install on a pole One of the hinges allows for elevation adjustment.
. Feed
. Radome
- Mount
3.6 IF Cable Run
A single coaxial cable is used to connect the ODU to the DU. The cable carries transmit IF
signal, receive lF signal. telemetry 10 MHz reference signal and DC power. The DU and ODU
contain “N" type female connectors for interconnection of the coaxial cable. For increased EMC
performance P-COM recommends the use of Times—Microwave LMR400, double screened,
coaxial cable. Other coaxial cables with equivalent performance characteristics of the LMR~400,
shown below in Table 3-3, may be used. LMR-400 may be used in continuous lengths up to
1000 feet. The maximum bend radius of LMR-4OO is 6 inches (15 cm).
3-17
68135 Tel-Link Foint-To-Multlpolnt. Rev. A
I'-IH'_'I:|m
January 1999
Table 3-3 — LMR-400 Performance Characteristics
Dielectric
Property LMR-400
Capacitance 23.0 pf/ft
impedance 50 Q
Velocity of propagation 85%
DCR Conductor 1 39 0/1000 ft.
Attenuation 30 MHz: 0.70 dB/iOO ft
Cellular PE
(low loss closed cell polyethylene foam)
0.285" nominal diameter
Aluminum laminated tape bonded to the
dielectric with tinned/copper over braid.
Diameter: 0.320" nominal
Black PE
Nominal jacket thickness: 0.045"
220 MHZ:1.80 dB/1 00 ft
450 MHz: 2.70 dB/iOO ft
900 MHz: 3.90 dB/iOO ft
The signals that are carried between the lDU and the ODU on the coaxial IFL cable are provided
in Table 3-4.
IDU Transmit
Table 3-4 — IFL Si nals
lFL Signal Frequency Variation
205 MHZ £25 MHZ
ODU Power
IFL Connector
Type N male
Type ENC — N male
lDU Receive 490 MHz 125 MHz
Telemetry 500-800 KHz 30 kHz
Reference Signal 10 MHz 1 ppm
IFL Power Voltage Variation
+48 Vdc +40 to +57Vdc
Termination 1 Termination 2
lFL Combiner ODU
IFL Combiner
3-18
53135 Teleink Polnt-Te-Muitlpoint. Rev. A I
p ’ E n m January1999
4.0 Remote Terminal Theory of Operations
4.1 Introduction
The Remote Terminal provides the interface to network services at the customer premise, The
basic Indoor Unit (IDU) is provided with various interfaces and communicates with the Sector
Terminal. The Remote Terminal consists of the following components:
- An IDU containing a Modulator, Demodulator, Power Supplies, Controller and User
Interface Module (UIM)
- An ODU containing the RF electronics
- An Antenna and mounting hardware
- An lFL consisting of a single coaxial cable connecting the indoor Unit to the Outdoor Unit
4.2 Remote Terminal Indoor Unit (lDU)
The lDU is located inside the customer’s facility at a remote site and is connected to an ODU via
a coaxial cable, The lDU is comprised of the following components:
- A software configurable OPSK, ls-QAM, or 64-QAM Modem consisting of a Modulator
and Demodulator that provides the physical layer wireless communication link between
the Remote Terminal and the Sector Terminal.
- A Controller card that is responsible for controlling and monitoring local functions, and
processing Network Management messages from the Network Operation Center.
- User interface Module(s) (UiM) which supports user interfaces, as well as signal
monitoring and port statistics collection.
_—___—___________—__
68135 Tel-Link Foint-To-Multipoint, Rev. A 4-1
mic-am
Figure 4~1 shows the interior of a Remote Terminal IDU.
January 1999
Sunply Sunply
DF03207A
Figure 4-1 — Remote Terminal Indoor Unit Chassis
Each card in the chassis has a physical and logical slot number and are individually addressed by
logical slot number (refer to Figure 4-2).
Lugical Slut Numbers
i z 3 4 5 5 7 B 9 10 H 12 10a 29 an
SUPPUY
1 2 3 4 5 E 7 B 9 10 11 12 13 14 15 16 17 1B 19 20 21
thsical Slot Numbers
‘ODU is Logical Slot Number 0
Figure 442 — Log/caVPhysical Slot Numbers [or Remote Term/fie!
“m
4-2 55135 Tel-Link Pcinl-Tu-Multipoint. Rev. A
p } E a m January1999
The Indoor Unit (IDU) chassis consists of a modulator. demodulator, and controller can
accommodate up to 3 T1 User Interface Modules (UlM’s) and 2 Power Supplies. Chassis I
configuration is performed from a Local Site Manager (LSM) laptop or desktop PC using the
P-COM's Local Site Manager Lite Windows application. Each card has specific variables, which
need to be properly configured to establish a RF link to the PMP Base.
The IDU is connected to the Outdoor Unit (ODU) with an IF coaxial. The IF cable provides the
link for receive IF, transmit lF, control and status telemetry link and DC power (refer to
Figure 4-3).
IDU
lF Link
M udulitor
Hickman-
Controllnr
“gDemudulatu'
.—l
aszsz
LSM PC
Figure 4-3 - IDU Block Diagram
4.2.1 Remote IDU Circuit Boards (PIN 48070)
The Remote IDU controller is responsible for distributing and obtaining responses to configuration
and status messages to all cards in the chassis and the ODU. It is also responsible for
distributing software downloads from the Local Site Manager (LSM) or over the air NMS channel.
A serial port is provided on the Remote Controller allowing local management through the
connection of the LSM software tool. All configuration data received from the LSM is stored in
local nonvolatile RAM for configuration of the chassis when power is applied. In addition, a
second serial-port can be used to connected to a modem for dial back-up of management.
Features:
0 Serial port for local management
- Complete management of the Sector IDU
- Complete management of all Remote Terminals located within the sector
. Dial back-up management
. Hot pluggable
- Remote Terminal provisioning and software updates
Eh—
4.3
65135 Tel-Link Point-To-Multipoint, Rev. A
p > E D m January 1999
Remote Controller LED front-mounted indications:
. RED-SOLID - System is non-operational
- RED-BLINKING - Configuration and initialization mode active
- GREEN-BLINKING - Normal operation
Any chassis errors detected will first be indicated by a flashing red. Further specific information
can be obtained using the LSM to query the controller or associated card.
4.2.2 Modulator (PIN 280204)
The Modulator card supports a continuous outbound TDM carrier to all Remote Terminals located
within a sector. All messages received from the MOS are routed and modulated before being
transmitted to the Remote Terminals.
Features:
. Data Rates: up to 16 T1
- Forward Error Correction encoding
- Scrambling
. Power management
- Hot pluggable
- Remote provisioning and software updates
- QPSK, 16-QAM, and 64-QAM continuous modulation
- Multiplexing function that combines the following signals on to a single coaxial cable:
- Transmit lF
- Receive lF
- Monitor and Control
Modulator LED front-mounted indications:
- RED-SOLID - System is non—operational
- RED-BLlNKlNG ~ Configuration and Initialization mode active
. GREEN-SOLID - Normal operation
4-4 68135 Tel-Link Point~Te-Mu|tlpoint, Rev. A
p } E n m January 1999
4.2.3 Demodulator (PIN 28023-1)
The FDMA demodulator card receives a continuous carrier and is used to receive traffic from a
FDMA Remote Terminal. It demodulates the received traffic from the Remote Terminal and
separates network management messages. All user data is sent to the Network Interface Cards.
Features:
. Continuous Frequency Division Multiple Access (FDMA)
0 Data rates up to 16 T1 each
. 4AQAM, 16-QAM, 64-QAM continuous demodulation
- Forward Error Correction decoding
- Hot pluggable
Demodulator LED front-mounted indications:
- RED-SOLID - System is non-operational
- RED-BLlNKlNG - Link Acquisition mode
. GREEN-SOLID - Receiving reference signal, Normal operation
The Demodulator supports three levels of modulation: QPSK, 16-QAM and 64-QAM4 There are
discrete symbol rates supported and are listed below in Table 4-1,
“$—
4-5
88135 Tel-Link Polnt-To-Multipoint, Revi A
r-i} cam J
anuary1999
Table 4-1 — TX and RX Rate Chag
Chan. Spacing Hub or
MH Remote
( z) Supported
# of T1s
(Integer)
Modulation
Remote Tx only
6456 dB
RX Gain Slope vs RX lF Frequency x (a)
Cooling Forcedair prowded by fan in cabinet
6.2.5 Sector Terminal Controller
Description Quantity/Specifications
Local (from LSM DB-9 (F), Front Panel
Mounting Front, Slide-in Card
indicators Fault‘ Online/Standby
68135 Tel~Link P0int~To-Multipoint, Rev, A 6-7
nbnam
6.2.6 Sector Terminal Modulator
Modulation QPSK
Reed-Solomon
187/204
January 1999
6.2.7 Sector Terminal FDMA Demodulator
Demodulahcn QPSK
FEC Encoding
TYDE Reed-Solomon
187/204
——
QPSK 7 T1
Front, Slide—m Card
6-8 68135 Tel-Llnk Polnt-Te-Mullipoint, Rev. A
r-IN:|:|m
6.2.8 Sector Terminal Power Supply
Input Voltage
AC 90-260 VAC, 47 - 63 Hz
Mohassw
January 1999
6.2.9 Network Interface Card (NIC)
Description Quantity/Specifications
—fi—_—_~__—_
68135 Tel-Link Paint-Tu-Multipoint, Rev. A 6-9
r.» c i: m
6.3 Hub lF Combiner
Switches, Back Panel ‘l Rocker Type (AC Power)
1 Slide Type (Link A, Link 5)
Connectors, Back Panel 4 ENG Type (F) Coaxial (lFL 12,3 and 4)
1 ENG Type (F) CoaXial (Reference Monitor)
1 N Type (F) Coaxial (RF Unit)
Power Consumption < 35 W (1 Amp AC circuit protection; 1.5 Amp
DC circuit protection)
TX IF Center Frequency 205 MHz t25 MHz
January 1999
(HUB IF to Combiner to ODU)
RX IF Center Frequency 490 MHz $25 MHZ
(ODU to Combiner to HUB lF)
Ref Frequency for L0 Generation 10 MHz
Ref Sourced to: Controller Cards. Digital CMOS ODU, Analog 50
Ohms
Hub Ref Stability
(inclusive of Temperature Aging, Load & Voltage
Variations
> -1 dBm, 50 Ohms@RF Connector
Link A, Link B
Ref Level (analog)
Configure
6.4 Remote Terminal
6.4.1 Antenna
Description
Gain (mid-band) 38.0 dBi
Beamwidth <3 dB)
640 68135 Tel-Link Point-To-Multlpoint, Rev. A |
FHZCIITI
6.4.2 Remote Terminal Outdoor Unit
Output Power Level@Ant lnput
QPSK
1670AM
G4AOAM
lF Center Frequency
TX lF Input Level
TX Output Power Control Range (typically
45 dB) Set by RX Power or Sector Controller
TX Output Power Stability (within control
RX Input Frequency
RX lF Input Level
RX IF Output Level
Reference Stability over temperature and 5
year aging
Reference Frequency Level
Quantity/Specifications
Frequency Band 38 GHz
T/R Separation 700 MHz
Noise Figure at Antenna 9.0 dB
TX Output Frequency
TX lF lnput Return Loss <~12 dB
TX Gain Slope vs TX RF Frequency <0.2 dB/MHz Maxi
range)
TX Output Power Level (1 dB compression) +25 dBm
TX Output Mute Level <-50 dBm
TX Frequency Stability Set by [DU 10 MHz ref.
RX Noise Figure 9.0 dB Max
lF Center Frequency 490 MHz
Reference Frequency from IDU 10.0 MHz
January 1999
0 t3 dBm (<10 meters cable)
-18 :5 dBm (300 meters cable)
+20 to -25 dBm
s t3,0 dB over Frequency & Temperature
-20 to -90 dBm
(0 dBm no damage)
O dBrn t1 dBrn
(A28 13 dBm at lDU with 300 meters cable)
Set at IDU
-10 ii dBm (<10 meters cable)
63135 Tel-Link Foint-To-Mullipoint. Rev. A
-14 :2 dBm (300 meters cable)
5-11 ’
talcum
Telemetry Description
TX Power Control
Connectors
Summary TX, RX PLO or Synth Lock TBD
Security in Code TBD
RX Power Level TBD
DC Voltages (up to 4 voltages) TBD
30-48 Vdc (provided by the lDU)
40 Watts (Zero Cable Length)
Dimensions 12 in, Diameter (30.48 cm) x 2 in (5.08 cm)
Dp Target
Weight 3 lbs.
January 1999
Quantity/Specifications
65 Kg)
maximum
RX Level
Reliability
BNC
__L
iF‘ DC, Telemetry, and Reference N-Type
TX 8. RX (RF) WR42 or W620
MTBF Based on PTP in Field Data 10 years
6—12
63135 Tel»Llnk Poiano-Multipoint, Rev, A
nicnm
6.4.3 lFL Cabling
Description
Type
Dielectric
Attenuatlon
68135 Tel-Link Point-To—Multlpoint, Rev. A
Capacitance 23.0 mm
impedance 50 Q
Velocity of propagation 85%
DCR Conductor 1.39 {1/1000 ft.
January 1999
Quantity/Specifications
Times Microwave LMR»400 or cables with the
equivalent characteristics
Cellular PE
(low loss closed cell polyethylene foam)
0 285" nominal diameter
Aluminum laminated tape bonded to the
dielectric with tinned/copper over braid,
Diameter: 0.320" nominal
Black PE
Nominal jacket thickness: 0.045”
30 MHZ: 070 dB/‘iOO ft
220 MHZ: 1i80 dB/1OO ft
450 MHZ: 2.70 dB/iOO ft
900 MHz: 3 90 (18/100 ft
1000 Feet (300m) (W/LMR-AOO) without Line
drivers
Type N Female
6-13
talcum
January 1999
The signals that are carried between the DU and the ODU on the coaxial lFL cable are provided
in Table 6-3.
Table 6-3 — IFL Signals
IFL Signal
lDU Transmit
Frequency
205 MHZ
Variation
0 to -23 dBm
490 MHZ
IDU Receive
0 to ~31dEm
500-800 kHz
Telemetry
10 dBm,13 dB
Reference Signal 10 MHz
IFL Power
ODU Power
6.4.4 Remote Terminal Indoor Unit Chass
Description
Card Slot Capacity
Controllers
Modulators
-10 to -16 dBm
Variation
+40 to +57Vdc
is
Quantity/Specifications
21
Power Consumption
Demodulators
Dimensions 12.25 in (31.115 cm) x 17.5 in (4445 cm) x 14
in. (35.56 cm)
Weight 10 lbs, maximum
40 W ODU
35W IDU
(2 amp AC circuit protection ; 2.5 Amp DC
circuit protection)
Power
User Interface
Connectors L
H: N Connector Female
AC: EIA Connector
DC: 4 contact screw
Telecom Connector per interface card terminal
(SO-pin Amp CHAMP)
6-14
58135 Tel-Link Point-To~Multipoint, Rev. A
r-lilzmm
6.4.5 Remote Terminal Controller
Description
Diagnostic Port
Mounting
Indicators
Indicators, Front Panel
Function and Capability
68135 ToI-Llnk Point-To-Multipoint, Rev. A
January 1999
Quantity/Specifications
DB-9 (F), Front Panel
Front, Slide-in Card
Fault, Online/Standby
2 LED‘s Power and Fault
Configure a Remote Chassis
Receive data from an interface card
Format data into mlnicells for transmission
across the RF link
insert network management messages into
the outbound data system
Transfer the formatted data to the Remote
modulator
Receive data from the RF demodulator
Extract network messages from the
received data stream
Extract data packets from the received data
stream
Transfer data to the interface card
Provide status information and allow control
via the Local Site Manager
Allow software updates to the Cold-Fire
processor via the LSM interface
Provide debug information Vla the debug
serial port
6415
nlcam
6.4.6 Remote Terminal FDMA Modulator
Modulation
FEC Encoding
January 1999
Quantity/Specifications
Reed-Solomon
lnterleaving
Randomization
Constellation Encoding Gray Coding
Data Rate Range (10 MHz Channel)
187/204
Programmable Depth 1 to 12
Scrambling to insure symbol transitions for
adequate clock recovery
7T1
16 T1
Mounting Front, Slide-in Card
Fault, Online/Standby
6-[6
58135 Tel-Link Point-To-Multipoint, Rev. A
FUEDITI
6.4.7 Remote Terminal Demodulator
Modulation
FEC Encoding
Type
Randomization
QPSK
Description Quantity/Specifications
Rate 187/204
Constellation Encoding Gray Coding
lnterleaving Programmable Depth 1 to 12
Data Rate Range (10 MHz Channel)
January 1999
QF’SK
Reed-Solomon
Descrambling compatible with Modulator
Channel Equalizer Feedback/Feedforward,
Adaptive Decision
7T1
Mounting
6.4.8 User Interface Module (UIM)
Mounting
Framing
Transmitted Alarms
Line Build Out
Local Site Manager Port
58135 Tel-Link Point-To-Multlpoint, Rev. A
Front, Slide-in Card
Indicators Fault. Online/Standby
Description Quantity/Specifications
Physical Interface 6 x T1
indicators Fault, Offline/Standby
Ports SO-pin Amp Telecom Connector
Channel Description Voice or Data
Line Codes AMI, BSZS
Detected Signals Loss of Signal, AIS, BPV
Jitter Attenuation Receive path
Front, Slide-ln Card
Super Frame, Extend Super Frame
AIS (Blue)
0-133, 133-266, 2664399, 399-533,
533-555 Ft
DB-Q (F) Front
5-17 ’
p b E D "1 January1999
6.4.9 Remote Terminal Power Supply
Description Quantity/Specifications
Input Voltage
AC 90-260 VAC. 47 — 63 Hz
DC +20 to 56 VDC 3 Amp
Power
6.5 Environment Specifications
Description Quantity/Specifications
Operational Temperature
lDU 0°C to +40“
ODU -40°C to +60°C
Storage Temperature
0|
IDU -40°C to +80°C
ODU -40°C to +80°C
Operating 15,000 feet ( 4,500 meters)
Survwal 40,000 feet (10,000 meters)
Vibration (5 to 500 Hz)
ODU Operating 0.9 G, <1 Order of Magnitude degradation in
Post-FEC BER, No Synch Loss
2.4 G
—_
ODU Survival
Shock (10 mSec)
lDU Operating
5 G, <1 Order of Magnitude degradation in
Post-FEC BER, No Synch Loss
ODU Operating 10 G. <1 Order of Magnitude degradation in
operation BER, No Synch Loss
ODU Survival
ODU Rain Fall 3 in/hr Max
ODU Solar Load 360 BTU/hr/m2
6.6 Certifications
6—1 8 68135 Tel-Link Point-TO-Muilipolnt, Rev. A |
r-1 t cam
Glossary
AAU
AGC
AIS
AMI
AMSL
ASIC
3825
Base Station
BER
ENC
BPV
CAS
CCS
CHAMP
CLAV
CPE
CRC
DBPSK
DFM
DLL
Down Link
DQPSK
DSP
EIA
EIRP
EPLD
ESF
FCC
FDMA
FEC
FPGA
FSK
68135 Tel-Link Point-To-Multlpoint, Rev. A
January 1999
Antenna Alignment Unit
Automatic Gain Control
Alarm indicator Status
Alternate Mark Inversion
Above Mean Sea Level
Application Specific Integrated Circuit
Bipolar with Eight Zero Substitution
The center of a cell where Sector Terminalls) are installed.
Bit Error Rate
Bayonet Nut Connector
Bipolar Violation
Channel Associated Signaling
Common Associated Signaling
Connector
Cell Available
Customer Premise Equipment - Customer provided equipment that
connects to the interface port(s) of the IDU.
Cyclic Redundancy Check
Differential Bi-Phase Shift Keyed
Drive Fault Monitor
Dynamic Link Library
The RF communications path from 3 Base Station to the Remote
Terminal
Differential Ouandrature-Phase Shift Keyed
Digital Signal Processor
Electronics Industry Association
Effective Isotropic Radiated Power
Electronically Programmable Logic Device
Extended Super Frame Format
Federal Communications Commission
Frequency Decision Multiple Access
Forward Error Correction
Field Programmable Gate Array
Field Shift Keyed
p} E a "1 January1999
FWA Fixed Wireless Access
HDBS High Density Bipolar Order 3
IDU Indoor Unit
IF Intermediate Frequency
lFL Interfacrlity Link
LAN Local Area Network
LCD Liquid Crystal Display
LED Light Emitting Diode
LIU Line interface unit
LMCS Local Multi-Point Communications Services
LMDS Local Multi-Point Distribution Services
LNA Low Noise Amplifier
LOS Loss of Signal
LSM Local Site Manager -Laptop or desktop PC using P-COM's Local
Site Manager Windows application
MC Modem Controller
MCF Motorola Cold-Fire Processor
MIB Management Information Base
NCO Numerical Control Oscillator
NIC Network Interface Card - Supports user interfaces, as well as signal
monitoring and port statistics collection.
NMA Network Management Agent
NMS Network Management System
ODU Outdoor Unit
OTA Over the Air
PA Power Amplifier
PA Power Amplifier
PCB Printed Circuit Board
PD Pattern Detect
PMP PoinHo-Multipoint
POST Power Up Self Test
PSN Public Switched Network
PTN Public Telephone Network
QAM Quadrature Amplitude Modulation
QPSK Quadrature Phase Shift Keyed
RAM Random Access Memory
2 68135 Tel-Link Point-To~Multipoint. Rev. A
FUEDI'H
RCS
Remote IDU
Remote ODU
Remote Terminal
RF
RMA
ROM
RSSl
RU
RX
SAW
SCC
Sector
Sector IDU
Sector ODU
Sector Terminal
SF
SNMP
TAC
TDMA
Tel-Link
TX
UIM
Uplink
VOM
WLL
58135 Tel-Link Pcint-To-Multlpoint, Rev. A
January 1999
Redundancy Control Switch
Remote Terminal Indoor Unit chassis located at the remote location
Remote Terminal Outdoor Unit located at the remote location,
connected to a directional antenna pointed towards the Sector
Terminal.
Consists ofa Remote IDU. Remote ODU and Interfacility Link
Radio Frequency
Retum Material Authorization
Read Only Memory
Receive Signal Strength Indicator
Rack Unit
Receive Signal
Surface Acoustic Wave
Serial Communication Controller
A geographic area radiating out from a Base Station. Typically
referred to as the area covered by a Sector Antenna
Sector Terminal Indoor Unit chassis located at the Base Station
Sector Terminal Outdoor Unit chassis located at the Base Station
location, connected to an antenna providing coverage over a sector.
ConSists of one or more Sector IDUs connected to a common, or
redundant, set of Hub IF Combiners and Sector ODU/Antenna
assemblies
Super Frame Format
Simple Network Management Protocol
Technical Assistance Center
Time Division Multiple Access
Brand Name for P-COM Point to Multipoint equipment
Transmit Signal
User Interface Module
The RF Communications path from the Remote Terminals to the
Base Station
Volt-Ohm-Meter
Wireless Local Loop
rallznm
January 1599
This Page Intentionally Lefl Blank
68135 Tel-Link Foinl-To-Multipoint, Rev. A
p ’ E D m January 1999
Reader Comment Form
We welcome your comments and suggestions for improving our manuals. Please record your suggestions
below and FAX the completed form with your comments to (407) 674-3799.
NOTE
This form is for documentation comments only. Problems with hardware
or software should be reported separately to the Technical Assistance
Center at 1-877—674-3600
1. Did you find any omissions or inaccuracies in the manual? If so, please specify the page and
the problem. (It may help to include a marked up copy of the page along with this form)
“1“
MM
2. Did you find this manual understandable, usable, and well organized? Please make
suggestions Vor improvement.
3. Is there sufficient documentation on the associated hardware or software required for your use
of the Point to Multipoint System, as described in this manual? If not, specify the type of
information you feel is missing.
4. Please indicate the type of user/reader that you most nearly represent:
System programmer/System Manager Maintenance Technician
Process Engineer Other
5. Please indicate the way(s) in which you use this manual:
Instructional Tool other
Reference Tool
Name Title
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Address City
Telephone state, Zip/Country
Datam—
58135 Tel-Link Point»To-Mu|tlpoint, Rev. A

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