3Com ISDN Modem Familiarizing Yourself with the 3C882 ISDN Modem, 3Com, 3ComImpactTM IQ, Figure 2-3 shows the back panel

2-2 CHAPTER 2: INSTALLING THE 3C882 ISDN MODEM

Familiarizing Yourself with the 3C882 ISDN Modem

You should familiarize yourself with the components of the front panel and back panel of the 3C882 ISDN modem prior to installation.

The LED status display, shown in Figure 2-2,consists of eight front panel LEDs that are described in Table 2-1.

PWR TEST D B1 B2 SD RD DTR

3ComImpactTM IQ

3Com

Figure 2-2 Front Panel LED Indicators

Figure 2-3shows the back panel.

	9 VDC
	.6A MAX	RESET
			1	2	RS-232	ISDN U
	Figure 2-3 Back Panel Connectors
	Table 2-1 Front Panel LED Indicator Definitions
LED	Color	Description
PWR	Green	Power Indicator. Lit when power is on and remains lit as long
		as power is supplied to the unit.
TEST	Green	Self-Test/Status. Flashes when the 3C882 ISDN modem is
		executing its power-up self-test or a user-initiated reset. If the
		results of the self-test or reset are normal, the LED goes off. If
		the result of the self-test is abnormal and a fault is detected,
		the LED remains lit but does not flash.