Clear-Com HX System Frames - Manual (Page 30)

To remove a rear panel from the matrix:
1. Detach any devices connected to the rear panel’s connectors.
2. Loosen the screws that hold the rear panel to the matrix. The screws are attached
and will not fall off.
3. Remove the rear panel by pulling the panel out.
4.3 Installing CPU cards
The CPU card’s components include CMOS chips which are sensitive to static electricity.
Before touching the CPU card touch a grounded metal object, such as any unpainted
surface on the matrix, to dissipate static electricity. While handling the CPU card, take care
not to bend any of the card’s connector pins or component leads.
Before operating the CPU card the card’s battery must be reconnected.
Note:
The CPU card is shipped with a disconnected battery to preserve battery life. For
instructions on reconnecting the battery, see
4.1.3
Reconnecting the CPU Card’s backup battery .
The DIP switches on the CPU card should be checked before installation to ensure they are
correctly configured. The CPU card switch settings for normal operation (watchdog enabled)
are shown in
Figure 4: CPU card DIP switches set for normal operation .
Figure 3: CPU card DIP switches set for normal (watchdog enabled) operation
Tip: Store spare CPU cards in unused slots in the matrix (but do not plug them in fully) or in
electrically insulated packaging such as anti-static heavy duty plastic bags.
30 Eclipse HX-Omega User Guide