3Com ACCESSBUILDER 7000 User Manual - page 47
Manual is about: TRIPLE MODEM MODULE
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60
P
STN Port Cable Pin Assignments
A
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11
P
STN Port Cable Pin Assignments
Each modem on the communications card is equipped with a single
PSTN line port, which is accessed via the appropriate DIAL LINE socket
on the card’s interface module (refer to the rear panel diagram in
Section 1.2 for an exact reference of which socket services which
modem on the communications card). This is an RJ11 type socket, that
would typically be connected to a PSTN telephone wall socket using a
cable conforming to the wiring diagram shown below
: