3Com ISDN Modem manual Installing the Power Cable, Power Cable Connection

Installing the Power Cable 2-7

Specialized telephone equipment such as speaker phones that draw large amounts of power may not work on the 3C882 ISDN modem’s Phone port. Because these devices do not conform to the power specification of the 2500 touch-tone telephone standard, their operation is not guaranteed.

Installing the Power Cable

To install the power cable:

1Connect the 3C882 ISDN modem power cable to the

9 VDC power connector on the back panel of the ISDN modem, as shown in Figure 2-7.

U

	-232	ISDN
RS

2

1

RESET

9	VDC
.5A	MAX

Figure 2-7 Power Cable Connection

2Plug the transformer end of the power cable into a surge- protected standard 110 VAC wall outlet.

The indicator LEDs on the front panel (see Figure 2-2) flash momentarily as the unit undergoes a power-up self-test diagnostic.