Filter
Top Products
B-8
Cisco MGX 8220 Installation and Configuration
Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003
Appendix B Specifications
SRM-T1/E1 Specification
SRM-T1/E1 Specification
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)
• 1 to N Redundancy: Active (green)
• Indicator for each T3: Active (green)
Maintenance/Serviceability Features: DS1 Loopback toward service modules
Hot pluggable
• Reliability: >85000 hous MTBF
• Card Size: Front card: 7.25 in. x 16.25 in.
Back card: 7 in. x 4.5 in.
• Power: 48V DC, 50 W