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Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001
Chapter2 Module and Service Descriptions
Frame Relay Service Modules
Each interface configurable as a single port (FRSM-8T1) or up to 24 ports (FRSM-8T1-C) running
at full line rate, at 56 or n x 64 kbps
Bit error rate tester (BERT) and ext ended loopback pattern g en er ati on/verification (with option al
SRM)
1:N redundancy within a group of n + 1 FRSM cards on a shelf (with optional SRM)
LOS, OOF, AIS, RAI alarms
Transmitter loop-timed to receiver o r s ynch r on iz ed to shelf
Supports up to 1000 virtua l con nec tio ns pe r car d
FRSM for E1 features
The FRSM-8E1 and FRSM-8E1-C e ach p r ovide ei gh t E1 in te rfaces for full-duplex communicati on s a t
up to 2.044 Mbps. Each E1 line consists of an RJ-48 and SMB mini-connector, along with three LED
indicators for line statu s.
The FRSM-8E1 supports fractional and unchannelized E1 port selection on a per-E1 basis. The
FRSM-8E1-C allows full DS0 and n x DS0 channelization of the E1s, for a maximum of 248 ports per
FRSM-8E1-C.
Key Features include:
Eight E1 (2.048 Mbps +/-50 bps or 32 ppm) lines
HDB3 or AMI line coding
ITU G.704 16-frame multiframe line framing and clear channel E1
Each interface configurable as a single port (FRSM-8E1) or up to 31 ports (FRSM-8E1-C) running
at full line rate, at 56 or n x 64 kbps
BERT and extended loopback pattern generation/verification (with optional SRM)
1:N redundancy within a group of n + 1 FRSM cards on a shelf (with optional SRM)
LOS, OOF, AIS, RAI alarms
Transmitter loop-timed to receiver o r s ynch r on iz ed to shelf
Supports up to 1000 virtua l con nec tio ns pe r car d
LED Indicators
Table 2 -4 and Tabl e 2-5 describe th e F R S M T1 /E 1 LED faceplate indicators.
Table2-4 Card Level LED Indicators for the FRSM T1/E1
Type of LED Color Meaning
ACT LED Green Active
STBY LED Yellow Standby
FAIL L ED Red Fail