Table of Contents
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Chapter 1. Introduction
Module Specifications
Physical Description
Adapter Cable
1-2
DTE Interface
•
EIA-530 Synchronous
•
EIA-530A Synchronous
•
RS-449
•
RS-232 Synchronous
•
CCITT X.21 (V.11)
Rate
56 kbps to 2.048 Mbps in 56K or 64K steps
Tests
•
Local Loopback (Bilateral)
•
Remote Loopback (V.54)
•
Self Test
Test Pattern
511 with errored seconds display and error inject capability
Excessive 0s Protection
Excessive zeros alarm indication and configurable excessive zeros protec-
tion
Connector
DB-78 with cables to convert to D sub female connectors
The ATLAS Quad USSI Module can plug into any available option slot in the
ATLAS_800 chassis (see Figure 1-1). The module has an indication under
each D-shell connector referring to the port on the card.
Two ADTRAN-supplied adapter cables convert from the DB-78 connectors
on the rear of the module to Dual D sub connectors. These connectors are
marked as 1/3 and 2/4 to represent the port connected (1 or 3/2 or 4), based
on the cable to which the DB-78 attaches.
ATLAS Quad USSI Module User Manual
Figure 1-1. ATLAS Quad USSI Module
61200261L1-1
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