ADTRAN DUAL Nx56/64 1200142L1# - Manual (Page 14)

Chapter 1. Introduction
1-2 Nx56/64 (EIA-530) Option Module User Manual 61200054L2-1
Features
• Operates using 1 to 24 DS0s
• Includes an elastic store for absorption of rate varia-
tions
• Capable of including an Nx56/64 (EIA-530) plug-on
interface port, resulting in a dual port module
• Outputs a 50% duty-cycle output clock at all rates
• Menu operation for easy configuration
• Executes and responds to V.54 looping codes
• Generates and checks a 511 test pattern
• Performs an extensive self-test
Interfaces
• EIA-530 electrical (differential)
• Connector : DB-25 (EIA-530)
• Loopbacks:
- Port (toward the network)
- DTE (toward the DTE)
Both loopbacks can be invoked locally or remotely (V.54)
Option Module Specifications
DTE Interface
EIA-530
Rates
56 kbps - 1.536 Mbps in 56K or 64K steps
Clock Options
Internal, Internal-Inverted, External