Specifications

ASC Specification
Specifications B-7
ASC Specification
SRM-T1/E1 Specification
802.3 LAN Interface
Connector:
AUI interface via DB-15 connector control port:
DB-25 RS232 connector; Asynch interface, 99200 baud, 1 start,
1 stop, No Parity
Trouble shooting interface: Maintenance port: DB-25 RS232 connector; Asynch interface,
9600 baud, 1 start, 1 stop, No Parity
Indicators: Per Card: Active (Green), Failed (Red), Standby (Yellow)
LAN activity Flashing green
Maintenance/ Serviceability
Features:
RS232 maintenance/debug port
Internal Isolation Loopbacks
Hot-pluggable
Reliability: > 65000 hours MTBF
Card Size: ASC:7.25" x 16.25"
LM_ASC:7.0” x 4.5”
Power: –48V DC, 25W
T1/E1 Line Interface Connector: BNC-3T#
Standby SM requires a special Line Module:
R-DB15-4T1 if active cards use DB15-4T1
R-DB15-4E1 if active cards use DB15-4E1
R-BNC-4E1 if active cards use BNC
R-RJ48-8T1 if active cards use RJ-48-8T1
R-RJ48-8E1 if active cards use RJ-48-8E1
R-SNB-4E1 if active cards use SMB-8E1
Line Rate: T1: 1.544 Mbps ±75 bps (50 ppm)
E1: 2.048 Mbps ± 100 bps (50 ppm)
Transmit Clocking: Normal or Looped timed
Input Jitter Tolerance: Per AT&T Accunet T1.5 Service 1990 - T1
Per G.703 - E1
Physical Layer Alarms: Indicated in Service Modules
Physical Layer Performance Statistics: N/A
Indicators:
Per Card: Active (green), Failed (red), Standby (yellow)
BERT: Active (green), Errors (yellow)