I-Bus 0818D, Руководство пользователя

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Chapter 3 - Hardware
0818D User’s Guide 3-8
last LED, the CMC Health LED, will turn Red for approximately one
second before reverting to its normal Green condition.
3.4.1.8 ACO Off Pushbutton
This pushbutton silences the audible alarm that sounds upon the
occurrence of any alarm condition and also illuminates the ACO
LED. Silencing the audible alarm does not correct the alarm
condition. Also, the occurrence of a subsequent additional alarm
condition will reactivate the audible alarm.
3.4.1.9 Battery Pushbutton (BAT)
This pushbutton is employed to prevent draining of the CMC Board
backup battery after an intentional system shutdown. When the
main system power is shut down, the CMC Board will remain
operative, being powered by its backup battery. Pressing the BAT
pushbutton at this time will disconnect the battery and de-energize
the CMC Board.
3.4.2 Removal of the CMC Board
1. Shut down the system and turn off the main system power.
2. Loosen the screws on the CMC board’s faceplate, if any.
3. Completely retract the injector/ejector handles of the rear I/O
board module by pressing them away from each other.
Note: Some force may be required.
4. Slide the CMC board module out of the chassis.
Note: If you do not plan on immediately replacing a removed
CMC board, you must close the space left open with a filler panel
in order to maintain EMI specifications.
Note: To prevent draining the backup battery on the CMC board
after an intentional system shutdown, press the BAT pushbutton
on the front plate of the CMC Board. Battery backup will be re-
initialized at the next system start-up.
3.4.3 Insertion of a CMC Board
1. With the Injector/Ejector handles in their outward (open) position,
insert the rear I/O module on its card guides until the handle
latches begin to engage. Make sure the two guide pins mate
properly into the corresponding hole in the rear I/O card guides.