Nortel Internet BWA System 3200 User manual

NTXXXXXX
Internet Broadband Wireless Access
Internet BWA System 3200
User guide
Draft Rel 3.0 October 2000
What’s inside...
System description
Ordering Information
Technical specifications
Trouble clearing procedures
User interface description
Installation and commissioning procedures

Copyright  2000 Nortel Networks, All Rights Reserved
The information contained herein is the property of Nortel Networks and is strictly confidential. Except as expressly authorized in
writing by Nortel Networks, the holder shall keep all information contained herein confidential, shall disclose it only to its employees
with a need to know, and shall protect it, in whole or in part, from disclosure and dissemination to third parties with the same degree
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Nortel Networks, the Nortel Networks logo, the Globemark, How the World Shares Ideas, and Unified Networks are trademarks of
Nortel Networks.
Printed in Canada

User guide NTXXXXXX Rel 3.0 Draft October 2000
iii
Contents 0
About this document v
System description 1-1
Overview 1-1
Frequency band 1-1
Capacity 1-1
Frequency plan 1-2
System features 1-2
Equipment layout and main assemblies 1-3
Terminal signal flow 1-4
System interfaces 1-5
Interface cable pins 1-6
Hand-held terminal interface 1-6
Ordering Information 2-1
Detailed equipment codes 2-1
Technical specifications 3-1
Mechanical and environmental specifications 3-1
Equipment interface specifications 3-2
Frequency plan specifications 3-2
System performance specifications 3-3
Trouble clearing procedures 4-1
Testing the Radio faults 4-1
RF Loopback test 4-1
Loopback test for the local tributary 4-1
Loopback test for the remote tributary 4-1
Clearing the Radio alarms 4-2
Alarm interface pins 4-4
Warranty and field support 4-5
Warranties 4-5
Standard return service 4-5
48-hour emergency service 4-7
Technical support and information 4-7
User interface description 5-1
Hand-held terminal description 5-1

iv Contents
Internet BWA System 3200 NTXXXXXX Rel 3.0 Draft October 2000
Hierarchy of the HHT menus 5-3
Functions of the HHT keypad keys 5-4
Parameters for the Near Radio menu 5-5
Control submenu 5-5
Status submenu 5-6
Inventory submenu 5-8
Test submenu 5-9
Parameters for the Far Radio menu 5-10
Control submenu 5-10
Parameters for the Link menu 5-10
Control submenu 5-10
Installation and commissioning procedures 6-1
Chapter task list 6-1
List of procedures
6-1 Unpacking, identifying and matching the system 6-2
6-2 Installing the Internet BWA System 3200 on a pole 6-5
6-3 Connecting the interface cables 6-13
6-4 Setting up the Internet BWA System 3200 6-17
6-5 Aligning the antenna of the Internet BWA System 3200 6-20
6-6 Commissioning the Internet BWA System 3200 6-24

User guide NTXXXXXX Rel 3.0 Draft October 2000
v
About this document 0
This section provides an overview of the Internet BWA System 3200 user
guide.
Audience This document is intended for:
• installers
• system line-up and test (SLAT) engineers/technicians
• maintenance engineers
User interface conventions
The following conventions are used in procedures in this document.
bold Bold entries identify a command or a userID entered by means of the
craft interface terminal (CIT).
↵
↵↵
↵This symbol means the return key must be pressed.
Bold Bold entries with initial capital letters identify buttons, fields and menu
items as seen on the user interface screen.

vi About this document
Internet BWA System 3200 NTXXXXXX Rel 3.0 Draft October 2000

User guide NTXXXXXX Rel 3.0 Draft October 2000
1-1
System description 1-
This document describes the Internet BWA System 3200.
Overview The Internet BWA System 3200 establishes high-speed, reliable point-to-point
wireless links. The Internet BWA System 3200 uses a 4-FSK modulation
scheme and carries up to four E1 (2.048 Mbits/s) or up to four DS1 (1.544
Mbits/s) signals.
Frequency band
The Internet BWA System 3200 operates in the 15, 18, 23, 24/26, 28, 31 and
38 GHz frequency ranges.
Capacity
The capacity upgrade is software programmable from 2xE1 to 4xE1 and from
1xDS1 to 2xDS1 to 4xDS1. The capacity upgrade affects traffic because the
upgrade changes the following parameters:
• occupied bandwidth
• receive baseband filters
• data rate of operation
Table 1-1 lists the bandwidths for the radio frequency (RF) channels.
Table 1-1
RF channel bandwidths
Capacity Channel bandwidth (MHz)
2 x E1 3.5 (for all frequencies)
4 x E1 7.0 (for all frequencies)
1 or 2 x DS1 2.5 (for all frequencies)
4 x DS1 5.0 (for all frequencies)

1-2 System description
Internet BWA System 3200 NTXXXXXX Rel 3.0 Draft October 2000
For systems with a specific capacity (for example, a 4 x E1 capacity), the
activation of a new tributary within that capacity is software programmable,
either locally or remotely. The activation of a new tributary within an existing
capacity does not cause any errors to the existing traffic. Inactive tributaries do
not cause alarms.
Frequency plan
Frequency plans are in accordance with:
• current ITU-R recommendations and annexes as applicable for
international products
• FCC rules, part 101 (as amended on October 1, 1997, replaces parts 21 and
94)
• Industry Canada (SRSP-314.5, SRSP-318.5, SRSP-321.8) for North
American products
Table 1-2 lists the frequency plans.
System features
The Internet BWA System 3200 provides:
• scalable channel capacity to precisely match traffic volume
• scalable channel selection (digital synthesizer set in 250 kHz steps)
• selectable AMIor B8ZS linecoding for DS1 signals (E1 signals use HDB3
coding only)
• selectable framing type (Unframe, Frame or ESF for DS1 signals)
• hand-held wireless terminal to perform configuration, maintenance, and
performance monitoring of the outdoor unit (ODU)
• receive signal strength indicator (RSSI) on the outdoor unit to guide
service personnel in antenna alignment
• forward error correction (FEC) and link ID codes
• common ODU and frequency synthesizer to minimize the number of spare
units and cost
• simpleinstallationandmaintenance fromthe“twistandlock” design of the
outdoor unit.
Table 1-2
Frequency plans
Frequency
band 15 GHz 18 GHz 23 GHz 24/26 GHz 28/29 GHz 31 GHz 38 GHz
Frequency
range (MHz) 14.4- 15.35 17.7- 19.7 21.2- 23.6 24.25- 26.5 27.5- 29.5 31.0- 31.3 37.0- 40.0

System description 1-3
User guide NTXXXXXX Rel 3.0 Draft October 2000
Equipment layout and main assemblies
The Internet BWA System 3200 includes an outdoor unit (ODU), an antenna
and a mounting assembly (see Figure 1-1). A terminal site requires one
Internet BWA System 3200 to handle the radio signals for both the east and
west directions.
Figure 1-1
Internet BWA System 3200—physical layout MOP0082t.eps
Outdoor unit
The outdoor unit contains a Modem, an RF module, a power supply and a
remote communication link. Removal of the outdoor unit is possible without
the need to realign the antenna.
Mounting assembly
The Internet BWA System 3200 includes a mounting assembly to hold the
radio to a pipe mount. The mounting assembly design provides three 30°
elevation adjustment increments for a 90° elevation adjustment range. The
mounting assembly design also provides two 45° azimuth adjustment
increments for a 90° azimut adjustment range.
Mounting
assembly
Interface cable
assembly
Outdoor unit
Antenna

1-4 System description
Internet BWA System 3200 NTXXXXXX Rel 3.0 Draft October 2000
Terminal signal flow
This description covers the signal flow for a 38 Ghz frequency plan. Figure 1-2
shows a block diagram of the Internet BWA System 3200 components.
Figure 1-2
Internet BWA System 3200 components—block diagram F6357p.eps
Transmit signal path
The transmitter side of the RF module consists of a frequency modulated
source at the T/R spacing frequency of 1260 MHz. The output of the
frequency-modulated source is then upconverted to an X-Band frequency by a
local oscillator that can be set for low side or high side injection. Next the RF
signal is multiplied to a frequency within the operating band of 37.0 to 39.5
GHz.
Harmonic mixing using a local oscillator (LO), at half the output transmit
frequency, down-converts the incoming remote site RF input signal to an IF of
1260 MHz. Internal RF frequency settings will determine if the RF input
signal frequency is above or below the transmitter RF frequency. NRZ
basebandmodulationisimparted on and recoveredfromthe38 GHzcarrier via
a proprietary scheme that permits using a single multi-channel frequency
synthesizer.
Microprocessor
Control,
Temperature
and
Monitor Function
Synthesizer
and
Lock
Detector
Modulation
Filter, Gain
and D/A
Upconverter
Chain
FM
Modulated
Source
Multiplier
Output
Power
Detector
Power
Control
and Mute
Modulation
Removal
I/Q
Baseband
Gain Adjust
and A/D's
Receiver
Mixer
and
IF LNA
IF AGC,
IF Filters
and
IF Detector
Integrated
Parabolic
Antenna
Modem
DSP
Functions
Battery (-)
Battery (+)
Tx Data
Twisted pair
Rx Data
Twisted pair
RS485 A
RS485 B
Summary Alm
(NC/NO)
Cable
Interface
BNC Interface
AGC voltage
& Coaxial I/O
or Wireless
link I/O
Twisted pair
120 Ohm

System description 1-5
User guide NTXXXXXX Rel 3.0 Draft October 2000
Receive signal path
An analog AGC voltage is applied in the IF circuitry under microprocessor
control to reduce the dynamic range of the A/D input signal. Both broadband
and narrow-band detection is employed. Broadband detection is analog
detection at 1.26 GHz. Narrow-band detection is within the DSP. This design
enables the receiver to cope with large adjacent channel signal levels and
provides excellent A/D dynamic range to recover the desired signal.
System interfaces
Figure 1-2 shows the interfaces on the outdoor unit (ODU).
Figure 1-3
Outdoor unit interfaces F6358p.eps
Port for
coaxial I/O and
wireless link I/O
Interface
cable
pins
Ground
connection
Mounting
screw
(4 places)
Top View
Bottom View
Polarization
indicator
(2 places)

1-6 System description
Internet BWA System 3200 NTXXXXXX Rel 3.0 Draft October 2000
Interface cable pins
The interface cable pins connect:
• Uptofour E1 lines (120 Ohm, balanced)or up to four DS1lines (100 Ohm,
balanced)
• DC power
• alarm telemetry information
• two relays for summable and programmable alarms
• two dry-contact (Form-C) relay outputs that report on link performance
and critical alarms
Hand-held terminal interface
The Internet BWA System 3200 includes an optional wireless hand-held
terminal (HHT) that operates with batteries. The HHT communicates with the
Internet BWA System 3200 using an unlicensed 433.92 MHz channel.
To support this channel, both the HHT and the outdoor unit (ODU) have radio
433.92 MHz transceivers and matching whip antennas. You can use the HHT
to set and control, and to monitor the following features:
• receive signal strength indicator (RSSI) for antenna alignment
• Transmit Mute
• Transmit Modulation
• Transmitter Frequency
• Receiver Frequency
• radio frequency (RF) Filter Bandwidth
• bit error rate (BER)
• Link ID
• ODU Temperature
• Software Revision
• Fault Alarms

User guide NTXXXXXX Rel 3.0 Draft October 2000
2-1
Ordering Information 2-
This chapter describes the ordering information for the Internet BWA System
3200.
Detailed equipment codes
Table 2-1 to Table 2-4 provides information on the different types of
equipment and kits. Table 2-5 provides information on rules. These rules
correspond to the number in the “Eqpt rule” column in Table 2-1 to Table 2-4.
Table 2-1
18 GHz equipment
Equipment description PEC CPC Eqpt rule
ODU iBAR100 18GHz, A-1,T1
ODU iBAR100 18GHz, A-2,T1
ODU iBAR100 18GHz, B-1,T1
ODU iBAR100 18GHz, B-2,T1
NTHV50DA
NTHV50DB
NTHV50DG
NTHV50DH
A0833177
A0833178
A0833180
A0833181
1.1
Table 2-2
23 GHz equipment
Equipment description PEC CPC Eqpt rule
ODU iBAR100 23GHz, A-1,T1
ODU iBAR100 23GHz, A-2,T1
ODU iBAR100 23GHz, B-1,T1
ODU iBAR100 23GHz, B-2,T1
NTHV50GA
NTHV50GB
NTHV50GG
NTHV50GH
A0833182
A0833183
A0833184
A0833185
1.1

2-2 Ordering Information
Internet BWA System 3200 NTXXXXXX Rel 3.0 Draft October 2000
Table 2-3
Antennas
Equipment description PEC CPC Eqpt rule
15GHz 60cm high performance antenna
15GHz 120cm high performance antenna
18GHz 60cm high performance antenna
18GHz 120cm high performance antenna
23GHz 60cm high performance antenna
23GHz 60cm high performance antenna
23GHz 120cm high performance antenna
26GHz 30cm high performance antenna
26GHz 60cm high performance antenna
28GHz 30cm high performance antenna
28GHz 45cm high performance antenna
28GHz 60cm high performance antenna
38GHz 30cm high performance antenna
38GHz 60cm high performance antenna
NTHV30BC
NTHV30BE
NTHV30DC
NTHV30DE
NTHV30GA
NTHV30GB
NTHV30GC
NTHV30KA
NTHV30KC
NTHV30MA
NTHV30MB
NTHV30MC
NTHV30UA
NTHV30UC
A0832988
A0832975
A0832976
A0832977
A0832974
A0832978
A0832981
A0832980
A0832979
A0832982
A0832984
A0832985
A0832986
A0832987
1.1
Table 2-4
Miscellaneous equipment
Equipment description PEC CPC Eqpt rule
Interface mounting bracket
ODU cable end connector
433 MHz whip antenna (variable length)
Wireless hand-held unit (with 2x 433 MHz Antenna)
Multi-conductor interface cable
Alignment Accessory kit:
Test cable, 3200-2312 (Female reverse SMA to male
BNC)
NTHV??
NT A A
Note: Nortel can supply additional cabling as required to support site or job applications. For more
information about cabling availability, contact your Nortel Networks sales representative.
Table 2-5
Equipment rules
Rule
No. Description
1.1
—end—

Ordering Information 2-3
User guide NTXXXXXX Rel 3.0 Draft October 2000

2-4 Ordering Information
Internet BWA System 3200 NTXXXXXX Rel 3.0 Draft October 2000

User guide NTXXXXXX Rel 3.0 Draft October 2000
3-1
Technical specifications 3-
Tables 3-1 to 3-3 contain the technical specifications for the Internet BWA
System 3200.
Mechanical and environmental specifications
Table 3-1 provides the mechanical specifications for the Internet BWA System
3200.
Table 3-1
Physical, electrical and environmental specifications
Dimensions 281 mm W x 281 mm H x 83 mm D
11 in. W x 11 in. H x 3.25 in. D
Weight 5 kg (11 lb)
Input voltage ±20 to ± 60 Vdc
Power consumption 25 W
Operating temperature -33 to +55°C (-27 to 131°F)
Storage temperature -40 to +70°C (-40 to 158°F)
Relative humidity Up to 100% under all weather conditions
ODU-IDU cable length 250 m with a nominal ±48 Vdc supply voltage
Regulatory requirements FCC Part 101, FCC Part 15, UL, CSA

3-2 Technical specifications
Internet BWA System 3200 NTXXXXXX Rel 3.0 Draft October 2000
Equipment interface specifications
Table 3-2 contains the interface specifications for the Internet BWA System
3200.
Table 3-2
Digital interface
Frequency plan specifications
Frequency plans are in accordance with the current ITU-R Recommendations
and their Annexes as applicable for International products, and in accordance
with FCC rules, Part 101 (as amended on October 1, 1997) (replaces Part 21
and Part 94) andIndustry Canada(SRSP-314.5, SRSP-318.5, SRSP-321.8) for
North American products.
The following ETSI frequency bands (GHz) are offered
Tributary Rate 1.544 Mbps per ITU-T G.703
Line Code B8ZS or AMI
I/O Impedance 100 ohms balanced and terminated by a connector
Payload (programmable) 1 x DS-1, 2 x DS-1, 4 x DS-1
Channel Bandwidth 2.5 MHz, 2.5 MHz, 5 MHz
Frequency band
(GHz) FCC Industry Canada ITU-R
15 Part 101 (amended
on October 1, 1997) SRSP-314.5, SRSP-318.5,
SRSP-321.8
EN 301 128
18 EN 301 128
23 EN 300 198
24/26 ETS 300 431
28 ETS 300 431
38 EN 300 197

Technical specifications 3-3
User guide NTXXXXXX Rel 3.0 Draft October 2000
System performance specifications
Table 3-3 containsthesystem performancespecificationsfortheInternet BWA
System 3200.
Table 3-3
Frequency plans and reliability
Frequency
Band 15GHz 18GHz 23 GHz 24/26 GHz 28/29 GHz 31 GHz 38 GHz
Frequency
Range (MHz) 14.4-15.35 17.7-19.7 21.2-23.6 24.25-26.5 27.5-29.5 31.0-31.3 37.0-40.0
Channel Selection Software: set in 250 kHz steps
Frequency Source: Digital synthesizer
Frequency Stability: ±10 ppm
Modulation: 4-level frequency shift keying (FSK)
Residual BER: ≤ 10
Forward Error Correction (FEC): Reed Solomon
System Gain at 10-6 BER
1 x DS-1
(BW=2.5 MHz) 109 109 111 109 107 107 107
2 x DS-1
(BW=2.5 MHz) 106 106 105 105 104 104 103
4 x DS-1
(BW=5 MHz) 103 103 102 102 101 101 100
RF Power
Output* (dBm) +18 +18 +18 +17 +16 +16 +16
Power Control
Range (dB) up to 30 up to 30 up to 30 up to 30 up to 25 up to 25 up to 25
Power Control Range Resolution: -In steps of 1 dB
Rx Threshold at 10-6 BER (dBm)
1 x DS-1
(BW=2.5 MHz) -91 -91 -91 -91 -91 -91 -91
2 x DS-1
(BW=2.5 MHz) -88 -88 -87 -87 -86 -86 -85
4 x DS-1
(BW=5 MHz) -85 -85 -84 -84 -83 -83 -82

3-4 Technical specifications
Internet BWA System 3200 NTXXXXXX Rel 3.0 Draft October 2000