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2-6 CHAPTER 2: INSTALLING THE 3C882 ISDN MODEM
1 Insert one RJ-11 connector to a phone port labeled with a
telephone icon on the back of the ISDN modem, as shown
in Figure 2-6.
Figure 2-6 Analog Equipment Connection
2 Insert the other RJ-11 end into the appropriate RJ-11 port
on the analog device.
3 If you have another analog device to install, repeat steps 1
and 2.
CAUTION: The 3C882 ISDN modem is designed to operate
with telephones that are compatible with the original AT&T
®
2500 touch-tone telephone standard. 3Com guarantees
proper operation of compatible touch-tone devices that do
not exceed a total ringer equivalency number (REN) of three
per analog port. The 3C882 ISDN modem is designed to
provide power and ringing for these three devices on up to
200 feet of AWG 26 or heavier AWG wiring. Although the
3C882 ISDN modem may function satisfactorily at longer
cable distances with more than two attached telephones,
proper operation at longer cable distances is not guaranteed
in all situations.
RESET
9 VDC
.5A MAX
RS-232
ISDN U
12