Introduction; Applications - Net2Edge PB-TDM1-CONTRA Quick Setup Manual

Transition Networks

Introduction

The Contra Converter supplies a clock-locked 64K G.703 circuit over Ethernet, IP, or MPLS networks.
The following sections detail the Contra Converter applications, IP address setup, Logical Link setup,
G.703 port config, Clock config, some additional configuration, and Monitoring, Diagnostics, and
Maintenance. See the related Install Guide for features, models, specifications and documentation

Applications

Contra Converters need to be configured in order to communicate and work with each other.
A typical, two device, Point-to-point system might look as below:
This system involves two Contra Converters, and clocked data is passed from the DCE Network
across the system to the DTE User via the packet network.
There are also situations where Point-to-Multipoint operation may be required. In this instance, up
to 16 remote endpoints may be included:
In this configuration, data is split from one Contra Converter to the remote destination Contra
Converters. In this example the DTE Contra Converter would be configured with multiple Logical
Links; each one pointing to the IP Address of an individual remote Contra Converter. The remote
units are each configured in just the same way as in the Point-to-point application example.
Here the separation of the data between the endpoints and the interleaving of the data into the
central unit happen automatically.
In order to create a 64K circuit between two Contra Converters via a packet network, there are four
key settings which must be configured for any application. These are:
1. Local IP Address/Subnet Mask/Default Gateway
2. Logical Link Configuration
3. G.703 Port
4. Clocking
33604 Rev. A
www.transition.com
Contra Converter Quick Setup Guide
Page 5 of 72