Nortel Networks HotWire 8600 - Manual (Page 51)

SYSTEM
OK
Alrm
Test
TX
RX
Coll
ETHERNET
MCC
8000
97-15386
LEDs
A-2 8600-A2-GN20-20 October 1997
MCC Card
The MCC card provides diagnostic connectivity to the HotWire 8600/8800 DSL
cards. It provides the circuitry for both Ethernet and serial interfaces to the
HotWire 8600 DSLAM chassis. The MCC card provides mid-level management
functions for SNMP management of the DSL cards.
The following table describes the meaning and states of the LEDs on the MCC
card faceplate.
Type LED LED is . . . Indicating . . .
SYSTEM OK Green,
Winking*
Off
Normal operation; card functioning normally.
No power to card or card failure.
Alrm Amber
Off
Alarm present on MCC.
Normal operation; no alarms.
Test Amber
Off
Test in progress.
Normal operation; no tests.
ETHERNET TX Green,
Blinking
Off
Data is being transmitted from the MCC.
Inactive
RX Green,
Blinking
Off
Data is being received.
Inactive
Coll Off
Amber,
Blinking
Normal operation.
A collision has been detected.
* Winking describes a recurring pulse when the LED is ON longer than OFF at a ratio of
approximately 10:1.