Allied Telesis AT-iMG7x6MOD series User manual

Enclosure and
Intelligent Multiservice
Gateways
AT-iMG7x6MOD Electronics
Unit
Installation Guide

Copyright ©2009 Allied Telesis, Inc.
All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesis, Inc.
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designations mentioned herein are trademarks or registered trademarks of their respective owners.
Allied Telesis, Inc. reserves the right to make changes in specifications and other information contained in this document
without prior written notice. The information provided herein is subject to change without notice. In no event shall Allied
Telesis, Inc. be liable for any incidental, special, indirect, or consequential damages whatsoever, including but not limited to
lost profits, arising out of or related to this manual or the information contained herein, even if Allied Telesis, Inc. has been
advised of, known, or should have known, the possibility of such damages.

3
Chapter 1: Preface ........................................................................................................................................... 5
Safety Symbols Used in this Document ................................................................................................................................................... 5
Reviewing Safety Precautions..................................................................................................................................................................... 5
Where to Find Web-based Guides .......................................................................................................................................................... 7
Contacting Allied Telesis............................................................................................................................................................................. 8
Chapter 2: Electronics Overview .................................................................................................................... 9
Features........................................................................................................................................................................................................... 9
Module Combinations................................................................................................................................................................................11
Interfaces to the Network (Outdoor Versus Indoor Installation)..................................................................................................12
Example Configurations.............................................................................................................................................................................13
Chapter 3: Installing the Gateway in the Enclosure .................................................................................... 15
Required Tools and Supplies....................................................................................................................................................................15
Check Package Contents ..........................................................................................................................................................................15
Installing the Electronics Unit into the Enclosure ...............................................................................................................................16
Connecting Cables......................................................................................................................................................................................17
Connecting the T1/E1 Cable (if applicable) ..........................................................................................................................................21
Connecting the 1G LAN (RJ-45) - if applicable....................................................................................................................................22
Chapter 4: Installing the Gateway Indoors .................................................................................................. 27
Required Tools and Supplies....................................................................................................................................................................27
Preparing for the Installation....................................................................................................................................................................28
Mount the Grounding Stud.......................................................................................................................................................................29
Fastening the Plywood Mounting Surface to a Wall ...........................................................................................................................29
Attach Wall Mounting Bracket and Mark Mounting Holes...............................................................................................................30
Mount the Gateway to the Mounting Surface......................................................................................................................................31
Connecting the Ground Wire .................................................................................................................................................................32
Connecting the Power Cord....................................................................................................................................................................33
Connecting the Fiber Optic Cable (BD and EPON) ..........................................................................................................................34
Connecting the Coax Cable (if applicable) ...........................................................................................................................................35
Connecting the T1/E1 Cable (if applicable) ..........................................................................................................................................36
Connecting the 1G LAN (RJ-45) - if applicable....................................................................................................................................37
Connecting the Telephone Wires ..........................................................................................................................................................38
Connecting the LAN Cables ....................................................................................................................................................................38
Chapter 5: Turn-Up and Troubleshooting ................................................................................................... 41
Turn-up Sequence.......................................................................................................................................................................................41
Understanding the LEDs (iMGMOD Unit) ...........................................................................................................................................42
Troubleshooting..........................................................................................................................................................................................43
Understanding the LEDs (T1/E1 Card)..................................................................................................................................................45
Understanding the LEDs (Gig LAN RJ-45)............................................................................................................................................45
Technical Specifications ................................................................................................................................47
Orderable Parts...........................................................................................................................................................................................47
Physical Specifications (iMG746MOD)...................................................................................................................................................47
Physical Specifications (iMG726MOD)...................................................................................................................................................47
Environmental Specifications....................................................................................................................................................................48
Contents

Contents
4
Power Specifications...................................................................................................................................................................................48
Safety and Electromagnetic Emissions Certifications..........................................................................................................................48
Power Cord Wiring ...................................................................................................................................................................................49
Serial Port Wiring .......................................................................................................................................................................................50
T1/E1 Cable Wiring ....................................................................................................................................................................................50
Cleaning Fiber Optic Connectors .................................................................................................................51
Using a Cartridge-Type Cleaner..............................................................................................................................................................52
Using a Swab.................................................................................................................................................................................................54

AT-iMG746MOD Gateway Installation Guide
5
Chapter 1
Preface
This guide contains instructions on how to install the AT-iMG7x6MOD series intelligent Multiservice Gateway.
This guide has instructions for both outdoor and indoor installation.
Note
The iMG6x6MOD series intelligent Mulitservice Gateway, available before the iMG7x6MOD, supports
the same software features and physical interfaces. Moreover, the installation procedures for the two
product series are the same. However, the iMG7x6MOD also supports a Gig BiDi WAN module, and
a Gig BiDi WAN module with a Gig LAN RJ45 port. This will be highlighted in various figures.
Safety Symbols Used in this Document
This document uses the safety symbols defined in Table 1.
Reviewing Safety Precautions
Please review the following safety precautions before you begin to install the gateway.
Note
The indicates that a translation of the safety statement is available in a PDF document titled
“Translated Safety Statements” (613-000405) on the Allied Telesis website at www.alliedtelesis.com.
Table 1. Safety Symbols
Symbol Meaning Description
Caution Performing or omitting a specific action may result
in equipment damage or loss of data.
Warning Performing or omitting a specific action may result
in electrical shock.
Warning: Class 1 Laser product.
 1

Preface
6
Warning: To prevent electric shock, do not remove the cover. No
user-serviceable parts inside. This unit contains hazardous voltages and
should only be opened by a trained and qualified technician. To avoid
the possibility of electric shock, disconnect electric power to the
product before connecting or disconnecting the LAN cables.
 3
Warning: Do not work on equipment or cables during periods of
lightning activity.
 4
Warning: Class I Equipment. This equipment must be earthed. The
power plug must be connected to a properly wired earth ground
socket outlet. An improperly wired socket outlet could place
hazardous voltages on accessible metal parts.
 6
Pluggable Equipment. The socket outlet shall be installed near the
equipment and shall be easily accessible.
 7
Warning: Operating Temperature. This product is designed for a an
operating temperature range of -40 to +65 degrees C.
All Countries: Install product in accordance with local and National
Electrical Codes.
 10
Warning: Only trained and qualified personnel are allowed to install
or to replace this equipment.
 33
Warning: This unit is intended for installation in a restricted access
location. A restricted access location is where access can only be
gained by authorized service personnel through the use of a special
tool, lock and key, or other means of security, and is controlled by the
authority responsible for that location.
The uninterrupted power supply unit must be mounted indoors,
within 50 cable feet of the gateway.
The power cord for the power supply is 8 feet long. The power supply
must be mounted within 8 feet of a power outlet.
The gateway can be installed indoors or outdoors.

AT-iMG746MOD Gateway Installation Guide
7
Where to Find Web-based Guides
The installation and user guides for all Allied Telesis products are available in portable document format
(PDF) on our web site at www.alliedtelesis.com. You can view the documents online or download them
onto a local workstation or server.
All installation methods shall be in accordance with national and local
regulations and practices. The wiring method should include the use of
Listed wire/cable acceptable for the application per the National Code,
and should be one that an Authority Having Jurisdiction (AHJ) can
approve per the Code.
No wiring to the product should be exposed in lengths beyond 140
feet, as circuits should avoid exposure to accidental contact with
lightning and power conductors in accordance with NEC Article 725-
57 (NEC 2002). The installer should also consider Articles 210, 240,
250, 770 and 810 of the National Electrical Code (NEC).
The pluggable external power supply provided with the unit should be
mounted indoors. If other power supplies are employed, they should
be LISTED ITE with a Limited Power Source (PLS) output, LISTED
with an NEC Class 2 output, or another NEC Class 2 source of power
compliant with Article 725.
Warning: Fuse Rating (for Service Personnel).
For continued protection against risk of fire replace only with the same
type and rating of fuse. (Fuse F1: rating 125VAC, 3A.)

Preface
8
Contacting Allied Telesis
This section provides Allied Telesis contact information for technical support as well as sales and corporate
information.
Online Support
You can request technical support online by accessing the Allied Telesis Knowledge Base: http://
kb.alliedtelesis.com. You can use the Knowledge Base to submit questions to our technical support staff
and review answers to previously asked questions.
Email and Telephone Support
For Technical Support via email or telephone, refer to the Support & Services section of the Allied Telesis
web site: www.alliedtelesis.com.
Returning Products
Products for return or repair must first be assigned a return materials authorization (RMA) number. A
product sent to Allied Telesis without an RMA number will be returned to the sender at the sender’s
expense.
To obtain an RMA number, contact Allied Telesis Technical Support through our web site:
www.alliedtelesis.com.
Sales or Corporate Information
You can contact Allied Telesis for sales or corporate information through our web site:
www.alliedTelesis.com. To find the contact information for your country, select Contact Us ->
Worldwide Contacts.
Management Software Updates
New releases of management software for our managed products are available from either of the following
Internet sites:
Allied Telesis web site: www.alliedtelesis.com
Allied Telesis FTP server: ftp://ftp.alliedtelesis.com
If you prefer to download new software from the Allied Telesis FTP server from your workstation’s
command prompt, you will need FTP client software and you must log in to the server. Enter “anonymous”
for the user name and your email address for the password.

AT-iMG746MOD Installation Guide
Chapter 2: Electronics Overview 9
Chapter 2
Electronics Overview
Features
The AT-iMG746MOD is part of the iMG7x6MOD Series product.
Figure 1. The AT-iMG746MOD Electronics Unit (with Gig BiDi WAN Module)
Figure 2. Card Ports for the AT-iMG7x6MOD Series Unit

10 Chapter 2: Electronics Overview
Figure 3. The AT-iMG746MOD Electronics Unit (with Gig BiDi WAN Module with Gig LAN RJ-45 Port)
The features of the AT-iMG746MOD include:
Fixed Interfaces
- 6 RJ-45 LAN ports (10/100 Base-T)
- 4 Voice ports (FXS) - For the AT-iMG726MOD, 2 voice ports are available.
Modular WAN Interface Card
-100MBiDi
-EPON
-1GBiDi
Modular LAN Interface Card to expand service capabilities
- Ethernet over Coax (HPNA)
- T1/E1 (2) - Supports PBX termination or cell tower backhaul
- Gig LAN RJ-45 (on the 1G BiDi module)
iMG7-angled-view-main.eps

AT-iMG746MOD Installation Guide
Chapter 2: Electronics Overview 11
Module Combinations
With the various modules that are available, the following table shows which module configurations are
possible. Also, refer to “Understanding the LEDs (iMGMOD Unit)” on page 42.
Table 2. Module Combinations for MOD Products
Product iMG626 iMG726 iMG646 iMG746
100M BiDi XXXX
EPON X X X X
1G BiDi XX
1G BiDi / Gig Lan XX
HPNA (Low
Band) XXXX
T1/E1 X Xa
a. Not compatible with 1G BiDi / Gig LAN
XX(a)

12 Chapter 2: Electronics Overview
Interfaces to the Network (Outdoor Versus Indoor Installation)
The AT-iMG746MOD can be installed as part of an Outdoor or Indoor Installation.
In an Outdoor Installation, the AT-EN746MOD Enclosure has already been installed, and the AT-
iMGxx6MOD Electronics unit is installed so that it fits inside the Enclosure. Follow these steps:
1. Refer to the AT-EN746MOD Enclosure Installation Guide for steps on how to install the
Enclosure as well as figures that show the overall configuration.
2. Go to Chapter 3 of this Installation Guide for installation steps.
3. Go to Chapter 5 of this Installation Guide for turn-up and Troubleshooting.
In an Indoor Installation, the AT-EN746MOD Enclosure is not used; instead, the Electronics unit is
mounted on a plywood surface, and all connections are made directly to the Electronics Unit.
1. Go to Chapter 4 of this Installation Guide for installation steps
2. Go to Chapter 5 of this Installation Guide for turn-up and Troubleshooting.

AT-iMG746MOD Installation Guide
Chapter 2: Electronics Overview 13
Example Configurations
The following figures show one possible installation with the iMG746MOD.
Figure 4. Example AT-iMG746MOD using Coax Home Network
ethernet
(up to 6 ports)
RJ11
(up to 4 ports)
Coax (up to 8 ports)
splitter
network-physical-indoor.ai
Upstream
BD Fiber

14 Chapter 2: Electronics Overview

AT-iMG746MOD Installation Guide
Chapter 3: Installing the Gateway in the Enclosure 15
Chapter 3
Installing the Gateway in the
Enclosure
This chapter describes how to install the gateway in the enclosure and assumes you have already installed the
enclosure. Refer to the (Enclosure installation Guide)
Required Tools and Supplies
The following tools and supplies are required to install the gateway:
Tools
Have the following tools on hand before you install the enclosure or gateway:
Flat head and #2 Phillips screwdrivers
Wire cutters
5/32 in. hex-pin security screwdriver
Additional Supplies
You may also need the following supplies:
Silicone sealant
Tw o U V- r a t e d w i r e t i e s
Console cable
Power cable (AT-iMG646MOD-C01) - or customer built
Power supply (AT-iMG008, AT-iMG008G)
Fiber cleaning materials (see Appendix B, “Cleaning Fiber Optic Connectors” on page 51)
Check Package Contents
The following items are included in the electronics package. If any item is missing or damaged, contact your
Allied Telesis representative for assistance.

AT-iMG746MOD Installation Guide
16 Chapter 3: Installing the Gateway in the Enclosure
Note
Store the packaging material in a safe location. You must use the original shipping material if you need
to return the unit to Allied Telesis.
AT-iMGxx6MOD chassis (LAN and WAN cards are already installed)
This Installation Guide
Accessory Kit that includes:
– 2 #8-32 SEMS pan head Phillips screws
– 6-pin DC terminal block
Installing the Electronics Unit into the Enclosure
To install the gateway, perform the following procedure:
1. Open the enclosure and locate the notches at the top of the enclosure.
2. Align the tabs on top of the gateway with the notches at the top of the Enclosure. Then rest the gateway
on the ground plate rest and the two side rests of Enclosure. Refer to Figure 5.
Figure 5. Sliding the gateway into the Enclosure (Tabs into the Notches)
Warning: This unit is intended for installation in a restricted
access location. A restricted access location in where access
can only be gained by authorized service personnel through the
use of a special tool, lock and key, or other means of security,
and is controlled by the authority responsible for that location.

AT-iMG746MOD Installation Guide
Chapter 3: Installing the Gateway in the Enclosure 17
3. Use two of the #8-32 SEMS screws to secure the gateway to the grounding plate as shown in Figure 6.
Figure 6. Mounting the Gateway
Connecting Cables
Cable Layout Overview
Figure 7 shows the cable entrances. Note that the middle entrance is not used.
Figure 7. Cable Entrance Layout

AT-iMG746MOD Installation Guide
18 Chapter 3: Installing the Gateway in the Enclosure
Connecting the Fiber Pigtail
Connect the pigtail (installed as part of the Enclosure installation procedure) to the WAN fiber port of the
electronics unit. Refer to Figure 8.
Connecting the Power Cord
The AT-iMGxx6MOD gateway is designed to be deployed with an uninterrupted power supply (UPS). You
can purchase a UPS from Allied Telesis (part number AT-iMG008/AT-iMG008G). Install the power supply
according to the manufacturer’s instructions included in the package.
Allied Telesis provides a 15 ft. power cable (part number AT-iMG646MOD-C01). Alternatively, you can
make custom length power cables. The power connectors (6-pin and 7-pin terminal blocks) are supplied with
the AT-iMG008/AT-iMG008G) UPS and the gateways. For lengths up to 50 ft., use three pair twisted wire
with a minimum 18 AWG. Figure 32 on page 49 provides a detailed wiring diagram.
To connect the power cord, perform the following procedure:
1. Remove the grommet from the power cord entrance, cut a 1/4” “X” in it, and put it back in place.
2. Slip the power cord through the grommet.
3. Connect the wires in the power cord to the DC terminal block in the accessory kit (the wiring diagram is
shown in Appendix A) at 4.5 in-lbs. Or, use the Allied Telesis power cord, model AT-iMG646MOD-C01
(not provided).
4. Plug the terminal block into the DC power socket, as shown in Figure 8.
5. If not using the console cable, seal the grommet
6. Tie-wrap the power cable, using one of the secure posts or the lower channel.
Figure 8. Plugging in the DC Terminal Block (Pigtail already installed)

AT-iMG746MOD Installation Guide
Chapter 3: Installing the Gateway in the Enclosure 19
Connecting the Coax to the Home Network (if applicable)
With the HPNA card, the AT-iMG746MOD allows PCs, Set Top Boxes, VCRs, etc. to become members of
an ethernet subnet over the coax network that is already installed. Figure 9 shows an example. The coax-to-
ethernet converter can be purchased as ATI Part Number AT-iMG007.
Figure 9. Coax Network Configuration
To connect the coax cable, perform the following procedure:
1. Remove the grommet from the power cord entrance, cut a 1/4” “X” in it, and put it back in place.
2. Slip the coax through the grommet.
3. Connect the coax cable to the HPNA card, as shown in Figure 10.
4. Seal the grommet with tape and silicone and silicone sealant.
5. Tie-wrap the coax, using one of the secure posts or the bottom channel.
Figure 10. Connecting to coax cable
AT-iMG746MOD
as Master
Splitters are passive with
4-20 GHz range Coax 25 to 35m
Coax 3 to 5m
1:4 Splitter
1:2 Splitters
Coax to ethernet
converter
1:2 Splitters
1:2 Splitters
network_physical_coax.ai

AT-iMG746MOD Installation Guide
20 Chapter 3: Installing the Gateway in the Enclosure
Warning
If the iMG is going to be used to provide HPNA over coax services to the home, the installer must
verify the home coax network has been properly grounded per the NEC/Local codes. If the installer is
unable to verify the coax is properly grounded, the iMG must be directly connected to building primary
ground.
Warning
Coaxial cable screen shield needs to be connected to the earth at the building entrance per ANSI/
NFPA 70, the National Electrical Code (NEC), in particular Section 820.93, Grounding of Outer
Conductive Shield of a Coaxial Cable or in accordance with local regulation.
Note
The HPNA module on the iMG-MOD requires total attenuation between the iMG and any endpoint to
be less than 56 dB.