IOP and IOA Module Specifications
3-port Channelized Inverse Multiplexing over ATM (IMA) Module
Beta Draft Confidential
A-48
4/5/03
CBX 500 Multiservice WAN Switch Hardware Installation Guide
Link Performance Monitoring
•
DS3 MIB (RFC 1407) near-end statistics collection
•
User-configurable thresholds for DS3 performance parameters
Module LED Status
Port Alarm Status
Figure A-10
shows the 3-port Channelized DS3/1 IMA IOP and IOA modules.
Table A-16.
Module LED Status Indicators
LED State
Status
Good LED lit
Normal operation
Failed LED lit
Module failure
Redundant LED lit
Redundant module online
Good and Failed LEDs
blinking simultaneously
Operating system software image currently being
downloaded from active switch processor (SP)
Table A-17.
Port Alarm Status Indicators
LED State
Status
Yellow LED lit
Downstream equipment sees loss of signal (LOS)
resulting in a remote alarm identification (RAI)
Red LED lit
Loss of framing (LOF) or LOS
Red LED blinking
Downstream equipment failure resulting in an
alarm indication signal (AIS)