
Chapter 1. Introduction
1-2
Quad E1/PRA Module User Manual 61200264L1
Figure 1-1. E1 Bandwidth Management Application
FUNCTIONAL DESCRIPTION
The Quad E1/PRA Module can be installed in any available option slot in the
ATLAS chassis. The status of the module itself, as well as the circuits to which it
interfaces, can be viewed from the ATLAS front panel. Additional status infor-
mation is available via the terminal menu, accessible through either a VT 100
terminal connected to the ATLAS Base Unit’s control port or through a Telnet
session established through the base unit’s Ethernet port. The Quad E1/PRA
Module can be configured and application software can be downloaded using
the terminal menu.
Features
• Four E1 interfaces
• Each interface configurable for 75-ohm unbalanced, 120-ohm balanced, or
75-ohm balanced impedance using the available converter assembly
(P/N 1200209L1)
• Diagnostic loopback support (line, port)
• Various timing options
• Performance per G.821 and RFC1406
• HDB3 and AMI coding
• NFAS, FAS, TS16 MF and CRC-4 framing
• CCS and CAS signaling
• Supports inherent DACS capability of the ATLAS
• Report line performance data via SNMP in RFC1406 format
• Trunk conditioning for proper setting of alarmed and unused TS0s
E1 E1
E1 E1
Quad E1/PRASystem Controller
Remote
Locations
Remote
Locations
ATLAS Bussing System
Quad Nx 56/64 USSIQuad E1/PRA
V.35 X.21
ATLAS 800
E1
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