Specifications

B-2 Cisco MGX 8220 Reference, Release 4.1
BNM-T3 Specification
Card General
Diagnostics: Header of first cell received with invalid egress
translation entries
Number of cells dropped due to invalid egress
translation entries
Synchronization: Derives 8KHz shelf synchronization clock
from a variety of sources:
• internal 8 kHz clock (10 ppm)
• BNM-T3 PLCP
• external T1/E1 clock port with a clock rate of
1.544 Mbps±50 bps (T1) or 2.048 Mbps±100 bps (E1)
External Office clock interface: DB15 connector via LM-T3E3-D (T1/E1 clock)
BNC connector via LM-T3E3-B (E1 clock)
Alarm interface: CO compatible alarm indicator and contr
DB15 connector
Indicators: Per Card: Active (Green), Failed (Red), Standby (Yellow)
T3 Interface: Active & Okay (Green)
Active & Local Alarm (Red)
Active & Remote Alarm (Yellow)
Minor DS-3 Statistical Alarm
Maintenance/Serviceability
Features:
Internal Isolation Loopbacks
External remote loopback
Hot-pluggable
Reliability: > 65000 hours MTBF
Card Size: BNM-T3: 7.25"x 16.25"
LM-T3E3-D: 7.25” x 4.5”
LM-T3E3-B: 7.25” x 4.5”
Power: –48V DC, 25W