Lucent Technologies CBX 500 - Link Performance Monitoring; Miscellaneous Link Message Support; Module Status Indicators; Table A-14. Module LED Status Indicators

IOP and IOA Module Specifications
8-port Subrate Module
Beta Draft Confidential
A-424/5/03 CBX 500 Multiservice WAN Switch Hardware Installation Guide
Clocking Options
• Loop timing
• Internal timing (better than Stratum 4 - +/- 20 PPM [pulse position modulation])
• External timing via 1.544 MHz T1 source
Link Performance Monitoring
• DS3 MIB (RFC 1407) near-end statistics
• User-configurable thresholds for DS3 performance parameters
Miscellaneous Link Message Support
• Application identification channel signal (identifies link as M13 or C-bit parity
mode)
• Recognition and generation of far-end block error (FEBE) events in C-bit parity
mode
Module Status Indicators
Table A-14. Module LED Status Indicators
LED State Status
Good LED lit Normal operation
Failed LED lit Module failure
Redundant LED lit Redundant module online
GoodandFailedLEDs
blinking simultaneously
OS software image currently being downloaded
from active switch processor (SP)