Physical Layer Features - Cisco MGX 8230 Installation And Configuration Manual

ATM UNI Service Module (AUSM)

Physical Layer Features

All Cards
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T1 Cards
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E1 Cards
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Cisco MGX 8230 Edge Concentrator Installation and Configuration
2-16
Transmitter is loop-timed to receiver or synchronized to shelf
Loop-up, loop-down pattern generation and verification
Transmission convergence sublayer functions per ITU G.804
LCV, LES, LSES, CV, ES, SES, SEFS, AISS, UAS performance statistics
Bit rate error test (BERT) and extended loopback pattern generation/verification (with optional
SRM)
1:N redundancy within a group of n + 1 AUSM/B cards of same type on a shelf (with optional SRM)
LOS, OOF, AIS, RAI alarms
Eight T1 (1.544 Mbps +/–50 bps) lines per card
B8ZS or AMI line coding
ANSI T1.408 extended Super Frame format line framing
ANSI T1.408 support for detection and display of received T1 ESF loopback codes on extended
Super Frame (ESF) data link
Cell transfer capacity 3623 cells/sec per T1
Eight E1 (2.048 Mbps +/–50 bps) lines per card
HDB3 or AMI line coding
ITU G.704 16-frame multiframe line framing and clear channel for E1
BERT and extended loopback pattern generation/verification (with optional SRM)
Cell transfer capacity 4528 cells/sec per E1 (G.704), 4830 cells/sec per E1 (clear channel)
Chapter 2 Module and Service Descriptions
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001