Belden Grass Valley EC9535, Reference Manual, Page: 29 / 44

21
Maintenance
The EC9535 does not require any periodic electrical or physical maintenance. However, it is
recommended that the system’s indicator LEDs be checked on a regular basis to ensure that the
system is operating properly. (See
Indicator LEDs on page 21.) It is also a good idea to regularly
make sure cooling air flow to the power supply fans is unobstructed.
Indicator LEDs
Indicator LEDs indicate whether DC power is present and if a card is operating normally. LEDs
are visible when the router front door is closed.
LEDs are listed in the order they appear on the card, from right to left. The meanings of the LED
indicators are as follows:
Battery Replacement
If the red Low Battery LED indicator on the control card is lit, the battery located on the front
edge of the card needs replacing. Grasp the exposed edge of the battery with your fingers and
pull it towards you to remove it.
Call
Grass Valley
for replacement battery information. For contact information, see
Grass Valley
Technical Support
on page 35.
Only qualified service personnel should perform procedures in this section. There are no user-
serviceable fuses.
LED Indicator Function
Red (low battery) Normally OFF. If lit, indicates that the battery needs replacing. See Battery Replace-
ment on page 21.
Red (alarm) Normally OFF. If lit, indicates a problem or fault. Check the external reference sig-
nals. If that does not resolve the problem, refer to the system status window in Uni-
Config for additional information. If you cannot resolve the problem, call Grass
Valley Technical Support. For contact information, see
Grass Valley Technical Sup-
port on page 35.
Yellow (active card) Normally ON. Indicates the card is the active control card. On the standby control
card, this LED should be OFF.
Green (health,
power) Normally ON. Indicates the card has power and is operating normally.
Do not use a metallic tool to remove the battery.