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All technical data and computer software are commercial in nature and developed solely at private expense. Software is delivered as
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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:INSTALLINGTHE V7122GATEWAY 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:CONFIGURINGTHE V7122GATEWAY 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 V7122GATEWAY USERNAME AND PASSWORD 37
CHAPTER 5:RESTORING AND BACKING UP THE V7122GATEWAY
CONFIGURATION 39
CHAPTER 6:MONITORINGTHE V7122GATEWAY 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:UPGRADINGTHE V7122GATEWAY 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
APPENDIX A:OBTAINING SUPPORT FOR YOUR 3COM PRODUCT 57
Customer Support 57
4
V7122 Digital Gateway Installation Guide
A
BOUT THIS GUIDE
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
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.
http://www.3Com.com under Support /
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 1Notice Icons
Icon Notice Type Description
Information note Information that describes important features or
Caution Information that alerts you to potential loss of data or
Warning Information that alerts you to potential personal injury
instructions.
potential damage to an application, device, system,
or network.
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:
VOICE_TECHCOMM_COMMENTS@3com.com
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
Appendix A: Obtaining Support for Your 3Com Product for details about how to
See
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
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
1: Q
UICK START
6. Configure the PSTN parameters
V7122 Digital Gateway Installation Guide
9
10
V7122 Digital Gateway Installation Guide
C
HAPTER
G
ATEWAY
Figure 1 shows the front view of the V7122 media gateway. For information about the V7122
gateway LEDs, see
Figure 1VT122 Gateway Front View
2: I
NSTALLING THE
Monitoring the V7122 LEDs.
V7122
Table 2V7122 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:
1 Unpack the V7122 gateway (see
2 Check the package contents (see
3 Mount the V7122 gateway (see
4 Cable the V7122 gateway (see
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
When you have completed the above relevant sections you are then ready to start
configuring the gateway (see
Monitoring the LEDs for details on the V7122 LEDs).
Chapter 3: Configuring the V7122 Gateway).
Unpacking).
Package Contents).
Mounting the V7122 Gateway).
Cabling the V7122 Gateway).
Unpacking
To unpack the V7122 gateway, follow these 6 steps:
1 Open the carton and remove packing materials.
2 Remove the V7122 gateway from the carton.
3 Check that there is no equipment damage.
4 Check, retain and process any documents.
5 Notify 3Com or your local supplier of any damage or discrepancies.
6 Retain 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 219-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:
1 Remove the two screws nearest the front panel on either side of the device.
2 Align 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.
3 Perform 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.
14
•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).
V7122 Digital Gateway Installation Guide
To attach the device to a 19-inch rack, follow these 2 steps:
1 Position 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.
2 Use 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:
1 Place the device on the preinstalled shelf.
2 You 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, 8trunk, 4-trunk, 2-trunk, or 1-trunk device. The 16-trunk dual AC (
(
Figure 5) configurations are illustrated here as representative products.
Two Category 5 network cables, connected to the two Ethernet RJ45 ports.
Protective earthing screw.
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
5 48V 4A max 2-pin connector for DC.
Protective earthing screw.
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:
1 Permanently 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
2 Connect the E1/T1 trunk interfaces (see
3 Install the Ethernet connection (see
4 Connect the power supply (see
Connecting the Power Supply).
Connecting the E1/T1 Trunk Interfaces).
Installing the Ethernet Connection).
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:
1 Attach the Trunk cable with a 50-pin male Telco connector to the 50-pin female Telco
Æ
connector labeled Trunks 1
8 on the Rear Transition Module (RTM).
2 Connect the other end of the Trunk cable to the PBX/PSTN switch.
3 Repeat 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.
Table 5E1/T1 Connections on each 50-pin Telco Connector
E1/T1 Number
1 to 8 9 to 16
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
Tx Pins (Tip/Ring) Rx Pins (Tip/Ring)
To connect E1/T1 trunk using RJ-48c connectors, follow these 2 steps:
1 Connect 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.
2 Connect the other ends of the Trunk cables to the PBX/PSTN switch.
RJ-48c trunk connectors are wired according to
Figure 7Pinout of RJ-48c Trunk Connectors
Figure 7.
RJ-48c Connector and Pinout
1 2 3 4 5 6 7 8
1 = Rx Ring
2 = Rx Tip
4 = Tx Ring
5 = Tx Tip
3, 6, 7, 8
not connected
body = shield
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
When you assign an IP address to the V7122 gateway using HTTP (under
Figure 8.
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
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