Physical Layer Features - Cisco MGX 8850 Product Manual

ATM UNI Service Module (AUSM)

Physical Layer Features

Table 2-2
Table 2-2
Card Type
All cards
T1 cards
E1 cards
Cisco MGX 8850 Multiservice Switch Installation and Configuration
2-16
shows the physical layer features for all cards, T1 cards, and E1 cards.
Physical Layer Features
Feature
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Cell transfer capacity 3623 cells/sec per T1
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Cell transfer capacity 4528 cells/sec per E1 (G.704), 4830 cells/sec
per E1 (clear channel)
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
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)
Release 1.1.31, Part Number 78-11223-03 Rev. B0, May 2005
Chapter 2 Module and Service Descriptions