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6
3C
OM
I
MPACT
ISDN E
XTERNAL
D
IGITAL
M
ODEM
Q
UICK
S
TART
I
NSTRUCTIONS
5
Plug the transformer end of the power cable into a
standard 117V ac wall outlet.
6
Connect the RJ-45 (8-pin) connector end of the RJ-45/RJ-11
ISDN cable to the RJ-45 connector labeled Wall on the
digital modem’s back panel.
7
Connect the RJ-11 (6-pin) connector end of the RJ-45/RJ-11
ISDN cable to the RJ-11 telephone ISDN jack.
CAUTION:
The 3Com Impact digital modem is designed to
operate with Basic Rate ISDN 2B1Q U Interface network
terminations. An internal Network Termination device (NT1)
is built into the digital modem. Do not connect the 3Com
Impact digital modem ISDN port to a standard analog
telephone jack or to an external NT1 device. Make sure that it
is connected to the ISDN jack.
8
Turn on the 3Com Impact digital modem by toggling the
power switch on the back panel to the On position.
9
Turn on the computer’s power switch and restart.
10
Go to the section “Configuration for Apple Macintosh
Computer” to configure the 3Com Impact digital modem for
your computer.
Configuring the 3Com Impact Digital Modem
The 3Com Impact digital modem requires the five essential
configuration parameters below before it can operate
properly on an ISDN line. Before configuring the digital
modem, make sure you have this information readily
available. These five parameters are provided to you at the
time of installation of your ISDN line by the telephone
company installer.
■
ISDN Switch Type
■
Phone #1 (local directory telephone number)
■
SPID #1 (Service Profile Identifier)
09-0700-002 Page 6 Sunday, December 22, 1996 3:40 PM