Specifications

A-17
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
FRSM-8T1 Specification
FRSM-8T1 Specification
This section provides information on the T1 operation of the FRSM-8T1E1 card set. Topics are:
• General physical information about the card set (Table A-23)
• Information about the Frame Relay service (Table A-24)
• System-level interface (Table A-25)
• Statistics and counters (Table A-26)
Table A-23 General Card Specifications
Category Description
Indicators per card Active (Green), Standby (Yellow), Fail (Red)
Indicators per line Active & Okay (Green)
Active & Local Alarm (Red)
Active & Remote Alarm (Yellow)
Line Interface connector RJ-48 when used with RJ48-8T1 back card
Line Rate 1.544 Mbps ± 50 bps
Line Framing ESF per ATT TR 54016
Maintenance/Serviceability
Features
Internal Problem Isolation Loopbacks
Hot-pluggable cards
Reliability, MTBF > 65000 hours
Card Size Front card: 7.25 inches by 15.83 inches (18.42 cm by
42.75 cm)
Back cards: 7.25 inches by 4.125 inches (18.42 cm by
10.48 cm)
Power: –48 VDC, 30W with 8 active T1 lines
Table A-24 Frame Relay Service With T1 Lines
Category Description
Synchronization Transmitter may be either loop-timed to receiver or synchronized
to shelf (called normal mode)
Input Jitter Tolerance Per ITU-T G.824
Output Jitter Generation Per ITU-T G.824 using normal mode synchronization
Physical Layer Alarms LOS, OOF, AIS, RAI
Number of Frame Relay Ports One–a single Frame Relay stream occupying N consecutive time
slots
Frame Relay Interface Rates Either of the following:
• 56 Kbps
• N x 64 Kbps (where N is the number of consecutive time slots)
Frame Relay Interface Per ANSI T1.618, 2-octet header