Nortel Networks 8010co - Manual (Page 68)

68 Chapter 3 Problem solving
312755-G Rev 00
Interpreting the LEDs
All BIP LEDs and indicators are located on the front panel ( Figure 44 ).
Figure 44 BIP LEDs and indicators
Table 4 describes the BIP LEDs and indicators.
Table 4 BIP LEDs and indicators
Item Label/Icon Type Color/State Description
1 Upper Shelf/
Lower Shelf LED Red/On steady Circuit breaker LEDs (for upper shelf and lower
shelf power supplies)—Indicates that a circuit
breaker has tripped due to an overcurrent condition
with the associated power supply.
This fault condition also lights the (red) MAJOR fault
indicator (see MAJOR fault description in this table).
No alarm is generated when a shelf circuit breaker
is manually switched on (|) or off (O).
2 LED Red/On steady Shelf alarm cable fault LED—The shelf alarm
cables are missing, not secured, or the shelf alarm
jumpers are not configured properly (see
“Accessing the alarm module” on page 30 ). This
fault condition also lights the MINOR fault indicator
(see Minor fault description in this table).
3 LED Green/On steady Shelf alarm cable validation LED —The shelf alarm
cables are properly connected to the shelves.
2
10435EB
1 = Shelf circuit breakers LEDs
2 = Shelf alarm cable fault LED
3 = Shelf alarm cable validation LED 4 = POWER indicator
5 = CRITICAL fault indicator 6 = MAJOR fault indicator
7 = MINOR fault indicator
1
POWER
CRITICAL
MAJOR
MINOR Upper Shelf
1 2 3 1 2 3
Lower Shelf
Alarm Module
7 6
4 5
3