Installation guide

4. Troubleshooting
8620-A2-GN20-50 June 2004
4-3
LEDs
The following table describes the meaning and states of the LEDs on the front
panel of the SIM card in the 8620 BAC. For individual card LEDs, see the
appropriate card Installation Instructions.
LED LED is . . . Indicating . . .
PWR A Green
Off
Normal operation for Power Source A.
Low, high, or no voltage for Power Source A.
PWR B Green
Off
Normal operation for Power Source B.
Low, high, or no voltage for Power Source B.
FAN ALM Yellow
Off
Fans are working at less than 50% of normal output.
Normal operation or no power to mounting.
Major Alarm Yellow
Off
Major alarm present on any of the cards in the chassis.
The card with alarm conditions will also have its Alarm
LED lit.
No major alarms.
Minor Alarm Yellow
Off
Minor alarm present on any of the cards (or Power Alarm
problem) in the chassis.
The card with alarm conditions will also have its Alarm
LED lit.
No minor alarms.
MCP
8000
SYSTEM
OK
Alrm
Tes t
TX
RX
Coll
ETHERNET
ESD
SIM
A
1
2
3
DC FUSES
A
B
-48V RTN
A BA B
AB
DC
POWER
F
A
N
M
A
J
O
R
M
I
N
O
R
ALARMS
ALARM
CLOCK
AB
SERIAL
SCM MCP
LAN
SCM MCP
SIM
IP
MVL
8314
SYSTEM
OK
Alrm
Test
TX
RX
LOC
1 2 3 4
ATM BUS DSL PORT
5 6
7 8 9 10 11 12
SCM-E3
10/100BT
8025
SYSTEM
OK
Alrm
Test
TX
RX
Coll
ETHERNET
Uplink Alrm
TX
RX
IP
MVL
8314
SYSTEM
OK
Alrm
Tes t
TX
RX
LOC
1 2 3 4
ATM BUS DSL PORT
5 6 7 8 9 10 11 12
AC INPUT
02-17239
AB
DC
POWER
F
A
N
M
A
J
O
R
M
I
N
O
R
ALARMS