COMBA ML-FOS User manual

ML-FOS Installation Guide
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ML-FOS
Native IP Digital Microwave
Full Outdoor System
INSTALLATION GUIDE
The information contained herein is the
responsibility of and is approved by the
following, to whom all enquiries should
be directed in the first instance:
Comba Telecom
This is an unpublished work the copyright in which vests in Comba International ("Comba"). All rights reserved.
The information contained herein is confidential and the property of Comba and is supplied without liability for errors or omissions.
No part may be reproduced, disclosed or used except as authorised by contract or other written permission. The copyright and the
foregoing restriction on reproduction and use extend to all media in which the information may be embodied.

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0.1 CONTENTS
Section Page
0.1 CONTENTS ........................................................................................................................... 2
0.2 INDEX TO FIGURES AND TABLES ..................................................................................... 3
0.3 HISTORY............................................................................................................................... 4
0.4 ISSUE CONTROL ................................................................................................................. 5
0.5 REFERENCE ........................................................................................................................ 6
0.6 GLOSSARY OF TERMS ....................................................................................................... 7
0.7 SAFETY NOTICES AND ADMONISHMENTS...................................................................... 8
0.8 SERVICING POLICY AND RETURN OF EQUIPMENT ....................................................... 9
1GENERAL INFORMATION ................................................................................................. 10
2PACKAGE ACCESSORIES ................................................................................................ 11
3FOS INTRODUCTION......................................................................................................... 11
4FOS INSTALLATION........................................................................................................... 12
4.1 OPTICAL MODULE INSTALLATION .................................................................................. 12
4.2 FOS ATTACHMENT TO ANTENNA ................................................................................... 13
4.3 FOS CABLE CONNECTION ............................................................................................... 15
4.3.1 GROUNDING THE FOS...................................................................................................... 15
4.3.2 CONNECTING THE PAYLOAD CABLE ............................................................................. 15
4.3.3 POWERING THE FOS ........................................................................................................ 16
5COMMISSIONING............................................................................................................... 18
5.1 EQUIPMENT POWER-UP .................................................................................................. 18
5.2 LAUNCH THE CIT............................................................................................................... 18
5.2.1 WIRE ACCESS TO CIT....................................................................................................... 18
5.2.2 Wireless Access to CIT ....................................................................................................... 21
5.3 CIT TOP MENU...................................................................................................................25
5.4 CIT CONTROL ....................................................................................................................27
5.5 READ AND SET PARAMETERS ........................................................................................ 28
6SET UP A WORKING LINK FOR 1+0 CONFIGURATION ................................................. 29
7MAINTENANCE ..................................................................................................................30
8APPENDIX: RMA (RETURN MATERIAL AUTHORIZATION) FORM ................................ 31

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0.2 INDEX TO FIGURES AND TABLES
Figure 1: FOS interface description ......................................................................................................11
Figure 2: Insert the optical module into the payload interface ..............................................................12
Figure 3: FOS with optical module Installed .........................................................................................12
Figure 4: Alignment key on antenna waveguide...................................................................................13
Figure 5: Alignment hole on FOS waveguide port ................................................................................13
Figure 6: Attach FOS to antenna ..........................................................................................................14
Figure 7: Prepartion for payload cable connection ...............................................................................15
Figure 8: Payload cable connection-1 ..................................................................................................15
Figure 9: Payload cable connection-2 ..................................................................................................16
Figure 10: Power supply cable..............................................................................................................16
Figure 11: Power supply cable connection-1........................................................................................17
Figure 12: Power supply cable connection-2........................................................................................17
Figure 13: Launch the CIT terminal – step 2 ........................................................................................18
Figure 14: Launch the CIT terminal – step 3 ........................................................................................19
Figure 15: Launch the CIT terminal – step 6 ........................................................................................19
Figure 16: Launch the CIT terminal – step 7 ........................................................................................20
Figure 17: Installation of wireless CIT module driver-1 ........................................................................21
Figure 18: Installation of wireless CIT module driver-2 ........................................................................21
Figure 19: Installation of wireless CIT module driver-3 ........................................................................21
Figure 20: Installation of apc220_v12...................................................................................................22
Figure 21: Parameter setting of wireless CIT module ..........................................................................22
Figure 22: Launch the CIT terminal-1 ...................................................................................................22
Figure 23: Launch the CIT terminal-2 ...................................................................................................23
Figure 24: Launch the CIT terminal-3 ...................................................................................................23
Figure 25: Launch the CIT terminal-5 ...................................................................................................24
Figure 26: Launch the CIT terminal-6 ...................................................................................................24
Figure 27: Data set................................................................................................................................28
Table 1: FOS interface description .......................................................................................................11
Table 2: FOS payload description.........................................................................................................15
Table 3: CIT menu description..............................................................................................................26
Table 4: Keyboard instruction for CIT operation ...................................................................................27
Table 5: Read or write possibilities .......................................................................................................28

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0.3 HISTORY
Change No. ENU Details Of Change
1 1-0-0 First draft finished in Nov 2009.

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0.4 ISSUE CONTROL
Date 30
Nov
09
Section
All all

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0.5 REFERENCE
0.5.1 ML-FOS-YH Initial user manual released in Oct 2009.

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0.6 GLOSSARY OF TERMS
10Base-T 10Mbit/s Baseband Unshielded Twisted Pair Cable
AGC Automatic Gain Control
AIS Alarm Indication Signal
ALM Alarm
ATPC Automatic Transmit Power Control
AUX Auxiliary Data Channel
ADM Add/Drop Multiplexer
ATM Asynchronous Transfer Mode
BER Bit Error Rate
BERT Bit Error Rate Tester
CPU Central Processing Unit
CCITT International Telephone and Telegraph consultative committee
CIT Craft Interface Terminal
DC Direct current
DEM Demodulation
DEMUX DeMutiplex
ES Error Second
ESD Electry-static discharge
E1 Framing specification for synchronous digital streams at 2.048Mbit/s.
EOW Engineering order wire
ETH Ethernet
FTP File Transfer Protocol
GND Ground
IF Intermediate Frequency
LAN Local Area Network
LED Light-Emitting Diode
LOS Loss of Signal
MIB Management Information Base
MSAIS Multiplex Section Alarm Indication Signal
M&C Monitor and Control
MDU Modem Unit
MUX Multiplexer/Demultiplexer
NMS Network management system
ODU Outdoor Unit
PDH Plesiochronous Digital Hierarchy
QAM Quadrature Amplitude Modulation
PSTN Public Switched Telephone Network
RBER Remainder Bit Error Rate
RF Radio Frequency
RIM Replaceable Interface Module
RMT Remote
RLTS Received Level Threshold Second
RSL Received signal level
RSSI Received signal strength indication
RSPI Radio Synchronous Physical Interface
SDH Synchronous Digital Hierarchy
SSPA Solid State Power Amplifier
SNMP Simple network management protocol
TCA Threshold Crossing Alarm
TIM Trace Identifier Mismatch
TX Transmitter

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0.7 SAFETY NOTICES AND ADMONISHMENTS
This document contains safety notices in accordance with appropriate standards. In the interests of
conformity with the territory standards for the country concerned, the equivalent territorial
admonishments are also shown.
Any installation, adjustment, maintenance and repair of the equipment must only be carried out by
trained, authorized personnel. At all times, personnel must comply with any safety notices and
instructions.
Specific hazards are indicated by symbol labels on or near the affected parts of the equipment. The
labels conform to international standards, are triangular in shape, and are colored black on a yellow
background. An informative text label may accompany the symbol label.
Hazard labelling is supplemented by safety notices in the appropriate equipment manual. These
notices contain additional information on the nature of the hazard and may also specify precautions.
Warning:
These draw the attention of personnel to hazards which may cause death or injury to the operator or
others. Examples of use are cases of high voltage, laser emission, toxic substances, point of high
temperature, etc.
Alert:
These draw the attention of personnel to hazards which may cause damage to the equipment. An
example of use is the case of static electricity hazard.
Caution notices may also be used in the handbook to draw attention to matters that do not constitute
a risk of causing damage to the equipment but where there is a possibility of seriously impairing its
performance, e.g. by mishandling or gross maladjustment. Warnings and Cautions within the main
text do not incorporate labels and may be in shortened form.

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0.8 SERVICING POLICY AND RETURN OF EQUIPMENT
The repair of individual units and modules of this equipment is not considered practicable without
factory facilities. It is, therefore, the policy of Comba whereby faulty units or modules are returned to
the local agent for repair.
To enable an efficient, prompt after sales service to be provided for the diagnosis, repair and return of
any faulty equipment, please comply with the following requirements.
Items to be sent for repair should be packaged so as to provide both electrostatic and physical
protection and a Repair Material Authorization (a sample of this form is in the appendix) completed
giving the required information.
This request must be included with the item for repair, items for repair should be sent to the nearest
Comba office:
COMBA TELECOM LTD.
Hong Kong Office
Address: 611 East Wing, No. 8 Science Park West Avenue, Hong Kong Science Park, Tai Po, Hong
Kong.
Tel: [phone] Fax: [phone]
Singapore Office
Address: No. 1 Kaki Bukit View, #02-10 Techview, Singapore 415941
Tel: + 65 6345 4908 Fax: + 65 6345 1186
Thailand Office
Address: 3rd Floor, T. Shinawatra Building, 94 Sukhumvit Soi 23, Sukhumvit Road, Klongtoeynua,
Wattana, Bangkok 10110
Tel: [phone] Fax: [phone]
India Office
Address: Suite No. 2, E-172, TSH House, Greater Kailash – I, New Delhi – 110 048, India
Tel: + 91 11 4173 9997 / 8 Fax: + 91 11 4173 9996
Sweden Office
Address: Gustavslundsvagen 147, S- 167 51 Bromma, Stockholm, Sweden
Tel: [phone] Fax: [phone]
Brazil Sales Office
Address: Avenida Engenheiro Luiz Carlos Berrini 1297, cj 122, 04571-090 Brooklin Novo, São Paulo,
Brazil
Tel: [phone] Fax: [phone] ext 7
Dubai Office
Address: P.O. Box 450583, DUBAI, U.A.E.
Tel: [phone] Fax: [phone]
US Office
Address: Comba Telecom Inc. 2390 Bering Drive, San Jose, CA 95131, USA
Tel: [phone] Fax: [phone]
China Office
Address: No.10, Shenzhou Road, Guangzhou Science City, Guangzhou, China
Tel: + 86 20 2839 0000 Fax: + 86 20 2839 0136

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1 GENERAL INFORMATION
Comba Digital Microwave System allows transmission links to be established rapidly and easily to
meet a variety of transmission needs, brings cost savings and helps rapid network rollout. This
solution comprises of: antenna, outdoor unit and indoor unit.
The IP radio system is an IP transmission solution designed to seamlessly incorporate radio links into
wide range of infrastructures, working across a variety of frequencies from 7GHz to 23GHz and
meeting carrier-grade standards for reliability, quality and environmental compliance.
FOS employs a design that does not distinguish between the type of data to be transported, and
provides “native” support for both Ethernet and TDM data over the same radio link, without resulting
degradation of either type of traffic.
Two variants of FOS are available: one is FOS 160Mbps, another one is FOS 300Mbps.
This documentation covers the installation and maintenance of FOS, and is supposed to read with the
conjunction of Comba 0.3m_0.6m Antenna QI 1-0-0 / Comba 1.2m Antenna QI 1-0-0.

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2 PACKAGE ACCESSORIES
Please check the accessories against the packing list for damage and completeness.
3 FOS INTRODUCTION
FOS is the Full Outdoor System, integrating IDU and ODU together, which is applicable for the
outdoor application. Wireless access to CIT enables the easy commissioning and maintenance of
FOS.
Figure below shows the FOS.
Power Input:
165-285V AC
LED: RUN/ALM
RSSI Test Interface
Payload Interface
OPT2(IN/OUT)
Payload Interface:
OPT1(IN/OUT)
CIT Wireless
Access: ANT
Locking Buckle
Waveguide port
GND
Laptop
wireles
s
Wireless module
(USB)
Power Input:
165-285V AC
LED: RUN/ALM
RSSI Test Interface
Payload Interface
OPT2(IN/OUT)
Payload Interface:
OPT1(IN/OUT)
CIT Wireless
Access: ANT
Locking Buckle
Waveguide port
GND
Laptop
wireles
s
Wireless module
(USB)
Figure 1: FOS interface description
Interface Identifier Description
165-285V AC Power input interface
RUN/ALM
Diagnostic LEDs for identifying system working status.
RUN: Green
ALM: Red
RSSI RSSI test interface
GND Enclosure grounding connection
OPT1(IN/OUT) Payload interface
OPT2(IN/OUT) Payload interface: Reserved
ANT For CIT wireless access
Locking Buckle Secure FOS to antenna
Waveguide port Connection between FOS and antenna
Table 1: FOS interface description

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4 FOS INSTALLATION
4.1 OPTICAL MODULE INSTALLATION
Take figure below as a guide to install optical module before attach FOS to antenna.
•Insert the optical module into payload interface “OPT1 (IN/OUT)”.
Figure 2: Insert the optical module into the payload interface
•Verify the optical module is properly installed.
Figure 3: FOS with optical module Installed
Optical Module

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4.2 FOS ATTACHMENT TO ANTENNA
FOS can be directly attached to antenna by secure four locking buckles. Follow steps below to finish
FOS attachment to antenna.
•Align antenna polarization (refer to Comba 0.3m_0.6m Antenna QI 1-0-0 / Comba 1.2m Antenna
QI 1-0-0).
•Align FOS onto antenna by matching the alignment holes on the FOS waveguide port with the
alignment keys on antenna waveguide. See figures below.
Figure 4: Alignment key on antenna waveguide
Figure 5: Alignment hole on FOS waveguide port
Alignment
ke
y
Alignment
hole

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•Attach FOS onto the rear of antenna and hook each locking buckle to secure FOS to antenna.
Figure 6: Attach FOS to antenna
Hook each
lockin
g
buckle

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4.3 FOS CABLE CONNECTION
4.3.1 GROUNDING THE FOS
The FOS should be properly grounded before connecting any other cables to it. A ground terminal
located on the FOS is used for grounding. This ground terminal must be electrically connected to the
tower mounted with antenna.
4.3.2 CONNECTING THE PAYLOAD CABLE
Table below is a description of payload cable.
Payload Cable Description Cable Connection
Payload cable with waterproof
cover in one end, the cable is
available in length of 20m, 50m
and 100m.
The end with the waterproof
cover goes to the interface
“OPT1 (IN/OUT)”, the other
end without the waterproof
connect to the third party.
Payload cable with waterproof
cover in both ends used for
FOS cascade connection, 20m
in length.
One end goes to the interface
“OPT1 (IN/OUT)” of one FOS,
another end connect to the
FOS used for cascade
transmission.
Table 2: FOS payload description
Follow steps below to achieve the payload cable connection to FOS.
zRemove the external cap and internal cap one by one, loosen the waterproof cover.
Figure 7: Preparation for payload cable connection
zInsert the LC connector into the interface “OPT1 (IN/OUT)”.
Figure 8: Payload cable connection-1
External ca
p
Internal ca
p
Water
p
roof coverLC connector

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zFix the waterproof cover.
Figure 9: Payload cable connection-2
4.3.3 POWERING THE FOS
Figure below shows the FOS power supply cable with lightning arrester.
Figure 10: Power supply cable
Note: The power supply cable is 5m in length, if it is not long enough, please extend it manually.

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Connect the end with lightning arrester to the power input interface, the other end with three-way plug
goes to the power supply source.
zMatch the socket and plug as indicated in the figure below.
Figure 11: Power supply cable connection-1
zSecure the power supply cable with spanner and ground it properly.
Figure 12: Power supply cable connection-2
SocketPlug
Alignment pin
Alignment Hole
Groundin
g
Terminal

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5 COMMISSIONING
The system can be configured only after the link has been aligned through the CIT interface for local
commissioning and the NMS port for remote control. The local commissioning via CIT must be
performed on both sides of the link.
This section focuses on the local commissioning via the CIT wireless connection, please refer to the
separate NMS manual for ML-FOS NMS.
5.1 EQUIPMENT POWER-UP
Before applying power, check that the expected voltage, current, and power levels do not violate any
ratings. Double check all connections before applying power. Do not manipulate circuits or make
changes when power applied. System commissioning includes:
•Prepare for alignment and configuration
•Setup transmission
•Fine alignment
•Verifying installation
•Configuration
5.2 LAUNCH THE CIT
5.2.1 WIRE ACCESS TO CIT
The premise of wire access to CIT is a straight-through cable and a PC with ETH interface of GbE. To
launch the CIT terminal, follow the steps below:
Step 1: Click Program -> Accessories -> Communications ->choose Hyper Terminal. Note: Visa
system is without hyper terminal.
Step 2: Create a user Name, and then choose the first icon as below:
Figure 13: Launch the CIT terminal – step 2

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Step 3: In the prompt window, choose the correct “TCP/IP (Winsock)” in the “Connect using” menu,
set up the “Host address” and “Port number” as indicated in the screenshot below. Note:
“192.168.0.1” is the default IP address of any FOS, while the default port setting is 5000.
Figure 14: Launch the CIT terminal – step 3
Step 4: Click “OK” to access the terminal screen. Select File -> Properties -> Setting, in the prompt
window as following, select “VT100” in the “Emulation” menu and click “OK” to confirm.
Figure 15: Launch the CIT terminal – step 6

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Step 7: The window below will be viewed to indicate successful connect to the system, insert the
password “admin” and press ENTER to enter the system.
Figure 16: Launch the CIT terminal – step 7