Grass Valley NV8500 Series v.3.5 - Manual (Page 210)

194
Maintenance
Indicator LEDs
Control Cards
You can observe the LEDs on the control cards to determine whether the cards are operating
properly. This illustration shows the LEDs of hybrid control card as an example:
These are the LEDS at the front of a control card, from top to bottom:
LEDs 8, 7, 5 and 6 are visible through the door for both control cards.
LED 6: Health
LED 7: Alarm (red)
LED 2: Slave
LED 5: Active
LED 8: Low Battery
LED 1: Master
NV8500
ROUTER CONTROL
ACTIVE
AL
ARM
MASTER
SL
AV
E
LO
W
BA
TT
HEAL
TH
FR
AME
LED
No.
LED Name LED Color Function
1 Master Green ON for both control cards in the master, or primary, frame of
an NV8576-Plus router. OFF in the “slave” or secondary
frame. Which is the master frame is configured in MRC.
2 Slave Yellow ON for both control cards in the “slave,” or secondary, frame
of an NV8576-Plus router. OFF in the master, or primary
frame. Which is the master frame is configured in MRC.
8 Low Battery Red OFF, normally. ON when the battery needs replacement.
See
Battery Replacement on page 198.
7 Alarm Red OFF, normally. ON when there is a problem or fault. Check
the external reference signals. If that does not resolve the
problem, refer to the system status window in MRC for addi-
tional information. If you cannot resolve the problem, call
Grass Valley Technical Support.
5 Active Yellow ON when the card is the active control card in the frame.
OFF when the card is stand-by.
6 Health Green ON, normally. Indicates the card has power and is operating
normally.