IOP and IOA Module Specifications
32-port Channelized T1/E1 FR/IP IOM
Beta Draft Confidential
CBX 500 Multiservice WAN Switch Hardware Installation Guide 4/5/03A-9
• Any of the 32 physical ports can be selected as the timing source of port timing
reference A or port timing reference B
Module LED Status
Port Alarm Status
Figure A-9 shows the 32-Port Channelized T1/E1 FR/IP IOP and IOA modules..
Table A-2. Module LED Status Indicators
LED State Status
Good LED lit Normal operation
Failed LED lit Module failure
Redundant LED lit Redundant module online
Note: Not supported in this release.
Good and Failed LEDs blinking
simultaneously
Operating system software image currently being
downloaded from active switch processor (SP)
Table A-3. Port Alarm Status Indicators
LED State Status
Yellow LED lit Downstream equipment sees loss of signal resulting in a
remote alarm identification (RAI)
Red LED lit Loss of frame or signal
Red LED blinking Downstream equipment failure resulting in an alarm
indication signal (AIS)
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