T3 Module Specifications; Physical Description; Figure 1-2. T3 Module - ADTRAN T3 User Manual

T3 Module Specifications

Each port of the T3 Module conforms to the following specifications:

PHYSICAL DESCRIPTION

The T3 Module plugs into any available option slot in the rear of the ATLAS 800
(see Figure 1-2).
The T3 Module has a label over each pair of BNC connectors referring to the port
on the card. Each port has a pair of BNC connectors for the T3 circuit interface.
The ports are marked to indicate input and output for the T3 receive and transmit
cables.
61200223L1-1
Line rate 44.736 Mbps, + 895 bps
Capacity T3: 28 T1s; 672 DS0s
Line Codes B3ZS
Framing M13 or C-bit parity
Tests Power-up self test, line loopback, port loopback
Connectors BNC female-1 receive, 1 transmit (two additional for D/I)
Terminating 75 ohms + 5%, unbalanced
Impedance

Figure 1-2. T3 Module

T3 Module User Manual
Chapter 1. Introduction
1-3