1) DB25M (male) connector at one end to match the modem conn-
ector.
2) A connector that corresponds to your computer's serial port at the
other end. For PC users, a standard serial port card has either a
DB25M or DB9M connector, and your cable must possess one of
these two connectors.
3) A correct pin-to-pin cable connection. Your modem complies
with industry standard pin assignments, and most standard
modem cables should fit. However, refer to Appendix B in this
manual for more information concerning the pin assignment for
your modem connector.
If you have any problem acquiring the appropriate RS-232 cable,
consult your modem distributor or computer dealer.
1.5 Telephone Line Test and Phone Cable
Telephone line quality significantly affects the reliability of data
communications. Make sure that both the telephone system and
telephone line are in good order before the modem is connected.
First, test the line condition by lifting the telephone handset, listening
for a clear dial tone, and then placing a few calls. If the calls do not go
through well or are not loud and clear, you may have a poor quality
telephone line. If this is the case, find a better quality line for your
modem to ensure reliable data communications.
Connect your modem directly to an outside telephone line. Do not
connect the modem to a private branch exchange (PBX) telephone
system unless the system is proven to perform well in data
transmission applications.
You need a phone cable to connect the incoming telephone line to the
modem. The cable must have an RJ-11 plug at one end and a connector
which fits the telephone line wall outlet at the other end. If the cable
included with your modem does not fit your wall outlet, acquire an
appropriate cable.
1.6 Modem Installation
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