Miranda EC9535, User Manual

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EC9535 GSC Node Bus Converter • User’s Guide 21
4. Maintenance
The EC9535 does not require any periodic electrical or physical maintenance. However, it is rec-
ommended 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
Miranda
for replacement battery information. For contact information, see
Technical Support
Contact Information
on page iii.
Note
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
Replacement on page 21.
Red (alarm) Normally OFF. If lit, indicates a problem or fault. Check the external reference
signals. If that does not resolve the problem, refer to the system status window in
UniConfig for additional information. If you cannot resolve the problem, call
Miranda Technical Support. For contact information, see Technical Support Contact
Information on page iii.
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.
Important
Do not use a metallic tool to remove the battery.