Network Router User Manual
Table Of Contents
- V7122 Digital Gateway Installation Guide
- About This Guide
- How to Use This Guide
- Conventions
- Model Numbers for the V7122 Gateways
- Documentation Comments
- Notices
- 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
- Appendix A: Obtaining Support for Your 3Com Product
- About This Guide

2 Connect the E1/T1 trunk interfaces (see
Connecting the E1/T1 Trunk Interfaces).
3 Install the Ethernet connection (see
Installing the Ethernet Connection).
4 Connect 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:
1 Attach the Trunk cable with a 50-pin male Telco connector to the 50-pin female Telco
connector labeled Trunks 1
Æ
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.
Figure 6 50-pin Female Telco Board-Mounted Connector
125
26
50
Pin Numbers
V7122 Digital Gateway Installation Guide
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