3Com 3C877 Quick Start Instructions - Page 4
Browse online or download pdf Quick Start Instructions for Modem 3Com 3C877. 3Com 3C877 16 pages. Impact isdn external digital modem
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4
3C
I
OM
MPACT
Figure 1 3Com Impact Digital Modem Rear Panel
Installing the Digital Modem in an IBM-compatible PC
To install the 3Com Impact digital modem in an IBM or
compatible PC, follow these steps:
1 Turn off the computer.
2 Insert the 9-pin male end of the 3Com Impact digital
modem-to-PC serial signal cable into the connector labeled
Computer on the digital modem's back panel and tighten the
connector screws.
3 Connect the other end of the 3Com Impact digital
modem-to-PC serial signal cable to a serial communications
(COM) port on the back of your PC and tighten the connector
screws.
4 Connect the 3Com Impact digital modem power cable to the
connector marked 12V AC on the back panel of the digital
modem.
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.
ISDN E
XTERNAL
Power
12V AC
D
M
Q
IGITAL
ODEM
UICK
RS232D
S
I
TART
NSTRUCTIONS
Wall
RS232D
ISDN BRI-U ONLY