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B-6
Cisco MGX 8220 Installation and Configuration
Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003
Appendix B Specifications
BNM-155 Specifications
General Card Specifications
SMF Line Signal: Optical, SONET OC-3c per ANSI T1.105 and
GR-253-CORE
SMF Line Rate: 155.52 Mbps
Input Jitter Tolerance: Per Gr-253-CORE
Output Jitter Generation: Per Gr-253-CORE
Synchronization: Derives 8 kHz shelf synchronization clock from a variety
of sources:
• Internal 8 kHz (±10 ppm)
• BNM-155 PLCP
• External T1/E1 clock port with a clock rate of 1.544
MHz ±50 ppm (T1) or 2.048 MHz ± 100 bps (E1)
External Clock Interface: DB-15 connector or BNC connector (both are available)
Alarm Interface: CO compatible alarm indicator and controls via DB-15
connector
Indicators: Ten LEDs
• Per Card Active (green)
Failed (red)
Standby (amber)
• OC-3 Interface Single multihue LED
Active and okay (green)
Active and local alarm (red)
Active and remote alarm (amber)
• Shelf Voltage A voltage okay (green)
B voltage okay (green)
• Alarms Major (red)
Minor (amber)
ACO (amber)
History (green)