3Com VCX V7122 User manual

V7122 Digital Gateway
Installation Guide
System Release 5.0
http://www.3com.com
Part Number 900-0487-01 Rev AA
Published December 2007

3Com Corporation, 350 Campus Drive, Marlborough MA 01752-3064
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the following:
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2 V7122 Digital Gateway Installation Guide

C ONTENTS
ABOUT THIS GUIDE 5
How to Use This Guide 5
Conventions 6
Model Numbers for the V7122 Gateways 6
Documentation Comments 6
Notices 7
WEEE EU Directive 7
Abbreviations and Terminology 7
CHAPTER 1: QUICK START 9
CHAPTER 2: INSTALLING THE V7122 GATEWAY 11
Unpacking 12
Package Contents 12
Mounting the V7122 Gateway 13
Mounting the V7122 Gateway on a Desktop 13
Installing the V7122 Gateway in a 19-inch Rack 13
Cabling the V7122 Gateway 15
Connecting the E1/T1 Trunk Interfaces 17
Installing the Ethernet Connection 18
Connecting the Power Supply 19
CHAPTER 3: CONFIGURING THE V7122 GATEWAY 23
Assigning the V7122 Gateway IP Address 23
Assigning an IP Address Using HTTP 24
Assigning an IP Address Using BootP 25
Assigning an IP Address Using the CLI 26
Restoring Networking Parameters to their Initial State 27
Accessing the Embedded Web Server 28
Configuring the V7122 Gateway Basic Control Protocol Parameters 28
Configuring Basic H.323 Parameters 29
V7122 Digital Gateway Installation Guide 3

Configuring Basic SIP Parameters 31
Configuring the Trunk Settings 33
CHAPTER 4: CHANGING THE V7122 GATEWAY USERNAME AND PASSWORD 37
CHAPTER 5: RESTORING AND BACKING UP THE V7122 GATEWAY
CONFIGURATION 39
CHAPTER 6: MONITORING THE V7122 GATEWAY 41
Monitoring the V7122 Gateway LEDs 41
V7122 Gateway Chassis LED Indicators 41
TP-1610 Front Panel LED Indicators 41
Monitoring the V7122 Gateway Trunks and B-channels 43
CHAPTER 7: UPGRADING THE V7122 GATEWAY 45
Software Upgrade Wizard 45
Updating the Auxiliary Files 51
CHAPTER 8: REGULATORY INFORMATION 53
Safety Notices 54
Industry Canada Notice 55
Digital Device Warnings 55
Network Information and Intent of Use 55
Network Compatibility 55
Telecommunication Safety 56
FCC Statement 56
Reader's Notes Error! Bookmark not defined.
APPENDIX A: OBTAINING SUPPORT FOR YOUR 3COM PRODUCT 57
Customer Support 57
4 V7122 Digital Gateway Installation Guide

A BOUT T HIS G UIDE
This Installation Guide describes the installation of the V7122 Digital Gateway.
Information contained in this document is believed to be accurate and reliable at the time of
printing. However, because of on-going product improvements and revisions, 3Com cannot
guarantee the accuracy of printed material after the Date Published nor can it accept
responsibility for errors or omissions. Updates to this document and other documents can be
viewed by registered Technical Support customers at http://www.3Com.com under Support /
Downloads & Drivers.
When viewing this guide on CD, Web site or on any other electronic copy, all
cross-references are hyperlinked. Click on the page or section titles (shown in
blue) to reach the individual cross-referenced item directly. To return to the point
from where you accessed the cross-reference, press the ALT and ◄keys.
How to Use This Guide
This book covers these topics:
Chapter 1: Quick Start
Chapter 2: Installing the V7122 Gateway
Chapter 3: Configuring the V7122 Gateway
Chapter 4: Changing the V7122 Gateway Username and Password
 Chapter 5: Restoring and Backing Up the V7122 Gateway Configuration
Chapter 6: Monitoring the V7122 Gateway
Chapter 7: Upgrading the V7122 Gateway
 Chapter 8: Regulatory Information
V7122 Digital Gateway Installation Guide 5

Conventions
Table 1 lists conventions that are used throughout this guide.
Table 1 Notice Icons
Icon Notice Type Description
Information note Information that describes important features or
instructions.
Caution Information that alerts you to potential loss of data or
potential damage to an application, device, system,
or network.
Warning Information that alerts you to potential personal injury
or death.
Model Numbers for the V7122 Gateways
This guide describes the installation procedures and configurations for the following 3Com
®
VCX™ V7122 Digital Gateways:
The VCX V7122 Digital Gateway 16 Span (3CRVG71224-07)
The VCX V7122 Digital Gateway 8 Span (3CRVG71223-07)
The VCX V7122 Digital Gateway 4 Span (3CRVG71222-07)
The VCX V7122 Digital Gateway 2 Span (3CRVG71221-07)
The VCX V7122 Digital Gateway 1 Span (3CRVG71220-07)
Documentation Comments
Your suggestions are important to us because we want to make our documentation more
useful to you.
Please send e-mail comments about this guide or any of the V7122 documentation and Help
systems to:
[email protected]
Please include the following information with your comments:
Document title
Document part number (usually found on the front page)
Page number
Your name and organization (optional)
6 V7122 Digital Gateway Installation Guide

Example:
3Com V7122 Digital Gateway Installation Guide
Part Number 900-0487-01
Page 25
See Appendix A: Obtaining Support for Your 3Com Product for details about how to
register your product and get support from 3Com.
Notices
WEEE EU Directive
Pursuant to the WEEE EU Directive, electronic, and electrical waste must not be disposed of
with unsorted waste. Please contact your local recycling authority for disposal of this product.
Abbreviations and Terminology
Each abbreviation, unless widely used, is spelled out in full when first used, and only Industry
standard terms are used throughout this guide. The symbol 0x indicates hexadecimal
notation.
WARNING:
The V7122 gateway is supplied as a sealed unit and must only be serviced by
qualified service personnel.
Where “network” appears in this guide, it means LAN, WAN, and the like accessed
using the gateway’s Ethernet interface.
V7122 Digital Gateway Installation Guide 7

8 V7122 Digital Gateway Installation Guide

C HAPTER 1: Q UICK S TART
This Installation Guide helps you to set up the V7122 gateway for the first time. Prior
knowledge of IP networks is preferred. The following steps provide a quick setup flow. For
detailed information about how to fully configure the gateway, see the V7122 Digital Gateway
User Guide.
1. Unpack the V7122 gateway
2. Mount the V7122 gateway
3. Cable the V7122 gateway
4. Assign the V7122 gateway IP address
5. Configuring the V7122 gateway basic control protocol parameters
6. Configure the PSTN parameters
V7122 Digital Gateway Installation Guide 9

10 V7122 Digital Gateway Installation Guide

C HAPTER 2: I NSTALLING THE V7122
G ATEWAY
Figure 1 shows the front view of the V7122 media gateway. For information about the V7122
gateway LEDs, see Monitoring the V7122 LEDs.
Figure 1 VT122 Gateway Front View
Table 2 V7122 Gateway Front View Component Descriptions
Item # Label Component Description
1 FAULT Dual AC Power LED
2 cPCI board locking screws
3 cPCI latches
4 TP-1610 cPCI board, 16-trunk configuration
5 Status LED Indicators
6 T1/E1 STATUS E1/T1 Trunk Status LED Indicators
7 ETH Ethernet LED Indicators
8 Reset button
9 cPCI LED Indicators
10 Power and Fan LEDs
11 An available cPCI slot for an optional third-party CPU board
V7122 Digital Gateway Installation Guide 11

WARNING: Electrical Shock
The equipment must only be installed or serviced by qualified service personnel.
To install the V7122 gateway, follow these 4 steps:
1Unpack the V7122 gateway (see Unpacking).
2Check the package contents (see Package Contents).
3Mount the V7122 gateway (see Mounting the V7122 Gateway).
4Cable the V7122 gateway (see Cabling the V7122 Gateway).
After powering-up the V7122 gateway, the Ready and LAN LEDs on the front panel turn to
green (after a self-testing period of about three minutes). Any malfunction changes the
Ready LED to red (see Monitoring the LEDs for details on the V7122 LEDs).
When you have completed the above relevant sections you are then ready to start
configuring the gateway (see Chapter 3: Configuring the V7122 Gateway).
Unpacking
To unpack the V7122 gateway, follow these 6 steps:
1Open the carton and remove packing materials.
2Remove the V7122 gateway from the carton.
3Check that there is no equipment damage.
4Check, retain and process any documents.
5Notify 3Com or your local supplier of any damage or discrepancies.
6Retain any diskettes or CDs.
Package Contents
Ensure that in addition to the V7122 gateway, the package contains these items:
For the dual AC power supply version, two AC power cables are supplied; for the single
AC power supply version, one AC power cable is supplied.
For the DC power supply version, one connected DC power cable (crimp connection
type) and one DC adaptor (screw connection type) connected to the rear panel of the
V7122 gateway are supplied; use only one type.
CD (software and documentation).
Small plastic bag containing (see Figure 2):
12 V7122 Digital Gateway Installation Guide

Two brackets and four bracket-to-device screws for 19-inch rack installation option.
Four anti-slide bumpers for desktop installation.
This Installation Guide.
Figure 2 19-inch Rack & Desktop Accessories
Mounting the V7122 Gateway
The V7122 gateway can be mounted on a desktop, or installed in a standard 19-inch rack.
See Cabling the V7122 Gateway for cabling the V7122 gateway.
Mounting the V7122 Gateway on a Desktop
No brackets are required. Optionally, attach the four (supplied) anti-slide bumpers to the
base of the V7122 gateway and place it on the desktop in the position you require.
Installing the V7122 Gateway in a 19-inch Rack
You can install the device in a standard 19-inch rack either by placing the device on a shelf
preinstalled in the rack (preferred method), or by attaching the device directly to the racks
frame using integral brackets.
Before rack mounting the chassis, attach the two brackets (supplied) to the front sides of the
device (see Figure 3).
V7122 Digital Gateway Installation Guide 13

To attach the two front side brackets, follow these 3 steps:
1Remove the two screws nearest the front panel on either side of the device.
2Align a bracket over two holes on one side (so that the brackets larger holes face front)
and with the two supplied replacement screws, screw in the bracket.
3Perform the same procedure on the other side.
Figure 3 V7122 Gateway Front View with 19-inch Rack Mount Brackets
CAUTION: Rack Mount Safety Instructions (UL)
When installing the chassis in a rack, be sure to implement the following safety
instructions recommended by Underwriters Laboratories:
•Elevated Operating Ambient - If installed in a closed or multi-unit rack
assembly, the operating ambient temperature of the rack environment may be
greater than room ambient. Therefore, consideration should be given to
installing the equipment in an environment compatible with the maximum
ambient temperature (Tma) specified by the manufacturer.
•Reduced Air Flow - Installation of the equipment in a rack should be such that
the amount of air flow required for safe operation on the equipment is not
compromised.
•Mechanical Loading - Mounting of the equipment in the rack should be such
that a hazardous condition is not achieved due to uneven mechanical loading.
•Circuit Overloading - Consideration should be given to the connection of the
equipment to the supply circuit and the effect that overloading of the circuits
might have on overcurrent protection and supply wiring. Appropriate
consideration of equipment nameplate ratings should be used when
addressing this concern.
•Reliable Earthing - Reliable earthing of rack-mounted equipment should be
maintained. Particular attention should be given to supply connections other
than direct connections to the branch circuit (for example, use of power strips).
14 V7122 Digital Gateway Installation Guide

To attach the device to a 19-inch rack, follow these 2 steps:
1Position the device in your 19-inch rack and align the left-hand and right-hand bracket
holes to the required holes in the vertical tracks of the 19-inch rack.
2Use standard 19-inch rack bolts (not provided) to fasten the device to the frame of the
rack.
3Com recommends using two additional rear mounting brackets (not supplied) to provide
added support.
Users assembling the rear brackets by themselves should note the following:
•The distance between the screws on each bracket is 26.5 mm.
•To attach the brackets, use 4-40 screws with a maximal box penetration length
of 3.5 mm.
To place the device on a 19-inch racks shelf, follow these 2 steps:
1Place the device on the preinstalled shelf.
2You are now recommended to take the optional steps of fastening the device to the
frame of the rack (as described above) while it is placed on the shelf, preventing it from
sliding when inserting cables into connectors on the rear panel.
Cabling the V7122 Gateway
The V7122 gateway is available in many configurations, that is, AC or DC, and 16-trunk, 8-
trunk, 4-trunk, 2-trunk, or 1-trunk device. The 16-trunk dual AC (Figure 4) and the 8-trunk DC
(Figure 5) configurations are illustrated here as representative products.
Figure 4 V7122 Gateway Rear Panel Cabling (16 Trunks, Dual AC Power)
V7122 Digital Gateway Installation Guide 15

Table 3 V7122 Gateway Rear Panel Cabling (16 Trunks, Dual AC Power) Component
Descriptions
Item # Label Component Description
1 RTM locking screws.
2 ETHERNET Two Category 5 network cables, connected to the two Ethernet RJ-
45 ports.
3 TRUNKS Two 50-pin Telco connector cables, each supporting eight trunks.
4 Protective earthing screw.
5 100-240~1.5A Dual AC power cables.
Figure 5 V7122 Gateway Rear Panel Cabling (8 Trunks, DC Power)
Table 4 V7122 Gateway Rear Panel Cabling (8 Trunks, DC Power) Component Descriptions
Item # Label Component Description
1 RTM latches.
2 ETH A Category 5 network cable, connected to the Ethernet 1 RJ-45 port.
3 PSTN Eight RJ-48c ports, each supporting a trunk.
4 Protective earthing screw.
5 48V 4A max 2-pin connector for DC.
Electrical Earthing
The unit must be permanently connected to earth using the screw provided at the
back of the unit. Use 14-16 AWG wire and a proper ring terminal for the earthing.
To cable the V7122 gateway, follow these 4 steps:
1Permanently connect the device to a suitable earth with the protective earthing screw on
the rear connector panel, using 14-16 AWG wire.
16 V7122 Digital Gateway Installation Guide

2Connect the E1/T1 trunk interfaces (see Connecting the E1/T1 Trunk Interfaces).
3Install the Ethernet connection (see Installing the Ethernet Connection).
4Connect the power supply (see Connecting the Power Supply).
Connecting the E1/T1 Trunk Interfaces
Connect the V7122 gateway E1/T1 Trunk interfaces using either Telco or RJ-48 connectors:
To connect E1/T1 trunk interface using 50-pin Telco connectors (16-trunk device), follow
these 3 steps:
1Attach the Trunk cable with a 50-pin male Telco connector to the 50-pin female Telco
connector labeled Trunks 1
Æ 8on the Rear Transition Module (RTM).
2Connect the other end of the Trunk cable to the PBX/PSTN switch.
3Repeat steps 1 and 2 for the other Trunk cable but this time connect it to the connector
labeled Trunks 9
Æ 16.
The 50-pin male Telco cable connector must be wired according to the pinouts described in
Table 5, and to mate with the female connector illustrated in Figure 6.
Figure 6 50-pin Female Telco Board-Mounted Connector
125
26
50
Pin Numbers
V7122 Digital Gateway Installation Guide 17

Table 5 E1/T1 Connections on each 50-pin Telco Connector
E1/T1 Number
1 to 8 9 to 16
Tx Pins (Tip/Ring) Rx Pins (Tip/Ring)
1 9 27/2 26/1
2 10 29/4 28/3
3 11 31/6 30/5
4 12 33/8 32/7
5 13 35/10 34/9
6 14 37/12 36/11
7 15 39/14 38/13
8 16 41/16 40/15
To connect E1/T1 trunk using RJ-48c connectors, follow these 2 steps:
1Connect the E1/T1 trunk cables to the ports labeled Trunks 1 to 8 (in the case of the 8-
trunk device) on the V7122 RTM.
2Connect the other ends of the Trunk cables to the PBX/PSTN switch.
RJ-48c trunk connectors are wired according to Figure 7.
Figure 7 Pinout of RJ-48c Trunk Connectors
1 2 3 4 5 6 7 8
3, 6, 7, 8
not connected
body = shield
1 = Rx Ring
2 = Rx Tip
4 = Tx Ring
5 = Tx Tip
RJ-48c Connector and Pinout
Installing the Ethernet Connection
Connect a standard Category 5 network cable to the Ethernet RJ-45 port (and the other as
optional redundancy/backup). Connect the other end of the Category 5 network cables to
your IP network. The Ethernet connectors (labeled Ethernet 1 and Ethernet 2) are wired
according to Figure 8.
When you assign an IP address to the V7122 gateway using HTTP (under Step 1 in Section
Assigning an IP Address Using HTTP), you may be required to disconnect this cable and re-
cable it differently.
18 V7122 Digital Gateway Installation Guide

Figure 8 Pinout of RJ-45 Connectors
1 2 3 4 5 6 7 8
RJ-45 LAN Connector and Pinout
4, 5, 7, 8
not connected
1 = Tx+
2 = Tx-
3 = Rx+
6 = Rx-
For redundant operation it is recommended to connect each of the Ethernet
connectors to a different switch.
Connecting the Power Supply
Connect the V7122 gateway to the power supply using one of the following methods:
Connecting the AC Power Supply
To connect power when using a single AC power cable:
Attach one end of the supplied 100/240 VAC power cable to the rear AC socket and
connect the other end to the correct earthed AC power supply.
WARNING:
Units providing power sockets with three pins must be connected by service
personnel to a socket-outlet with a protective earthing connection.
To connect power when using a dual AC power cable:
1Before connecting the dual AC power cable, see the note below.
2Attach one end of the supplied 100/240 VAC power cables to the rear AC sockets and
connect the other end to a separate earthed mains circuits (for power source
redundancy).
V7122 Digital Gateway Installation Guide 19

For the dual AC power supply note the following:
•The LED on the left side of the chassis is only connected when the dual AC is
used. It is not relevant to the single AC power connection.
•If only a single socket is connected to the AC power, (while the other plug is
left unconnected) the chassis LED (on the left side) is lit red, indicating that
one of the dual power inlets is disconnected.
•When both the AC power cables are connected, one of the plugs can be
disconnected under power without affecting operation, in which case the
chassis left LED is lit red.
•UPS can be connected to either (or both) of the AC connections.
•The dual AC connections operate in a 1+ 1 configuration and provide load-
sharing redundancy.
•Each of the dual power cables can be connected to different power phases.
Connecting the DC Power Supply
To connect the V7122 gateway to a DC power supply use one of these two options:
DC Terminal block with a screw connection type.
DC Terminal block with a crimp connection type.
To connect DC power using a DC terminal block screw connector, follow these 3 steps:
1Create a DC cable by inserting two 14-16 AWG insulated wires into the supplied adaptor
(see Figure 9) and fasten the two screws, each one located directly above each wire.
2Connect the two insulated wires to the correct DC power supply. Ensure that the
connections to the DC power supply maintain the correct polarity.
3Insert the terminal block into the DC inlet located on the V7122 gateway.
Figure 9 DC Terminal Block Screw Connector
20 V7122 Digital Gateway Installation Guide