Clear-com HX System Frames User Manual download pdf (Page 32)

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, be careful

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 CPU card switch settings for normal operation (watchdog enabled) are shown in

Figure

5: CPU card DIP switches set for normal operation

Figure 5: CPU card DIP switches set for normal operation

Tip: Store spare CPU cards in unused slots in the matrix or in electrically insulated

packaging such as anti-static heavy duty plastic bags.

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Clear-com HX System Frames User Manual Page 32