Specifications

A-7
Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001
Appendix A Technical Specifications
AUSM/B-8T1E1 Interface Characteristics
Physical Layer
Alarms
LOS, OOF, AIS, RAI
Physical Layer
Performance
Statistics
LCV, LES, LSES, CV, ES, MGX 8230, SEFS, AISS, UAS
Table A-5 E1 Interface Characteristics
Category Description
Line Interface
Connector
RJ-48 (120 ohms) on LM-RJ48-8E1, or SMB (75 ohms) on
LM-SMB-8E1
Line Rate 2.048 Mbps ± 100 bps
Synchronization Transmitter can be: loop timed, receiver, or synchronized to shelf (normal
mode)
Line Code HDB3 (E1)
Line Framing 16-frame multi-frame as in G.704
Input Jitter Tolerance As specified in ITU G.823 for 2.048 Mbps
Output Jitter Generation As specified in ITU G.823 for 2.048 Mbps
Physical Layer Alarms LOS, OOF, AIS, RAI
Physical Layer
Statistics
LCV, LES, LSES, CV, ES, MGX 8230, SEFS, AISS, UAS
Table A-6 ATM Interface Characteristics
Category Description
Standards ATM UNI v3.1, ITU-T G.804, per CCITT I.361.
Channel Configuration 1000 per card, across any of the T1 or E1 ports.
VPI/VCI Ranges VPI: 0–255.
VCI: 0–4096.
Traffic Classes CBR, VBR, VBR+.
UPC Parameters PCR, SCR (VBR), CCDV (CBR).
Congestion Control
Support
ForeSight (toward Network for VBR+).
ForeSight Parameters MIR, PIR, Rate Up, Rate Down, QIR, QIR Timeout, IBS.
Table A-4 T1 Interface Characteristics (continued)