Connecting To The Phone Line; Connecting To A Single Phone Line - Radio Shack System 420 Owner's Manual

43-971.fm Page 12 Monday, August 16, 1999 4:12 PM

CONNECTING TO THE PHONE LINE

The System 420 Call Waiting Caller ID connects to a modular
wall jack and your telephone. If your telephone wiring does
not have a modular wall jack, you can update the wiring your-
self. RadioShack stores sell jacks and adapters necessary to
convert older wiring methods to modular wiring. Or, you can
have the telephone company update your telephone wiring
for you. The USOC number of the jack to be installed is
RJ11C (for a single-line phone) or RJ14C (for a two-line
phone).
Note: For proper Call Waiting operation, connect only one
System 420 to a phone line. (If two or more systems with Call
Waiting are on a single phone line, the Call Waiting signal
can be garbled or not received.) Other Caller ID systems that
do not have the Call Waiting function can be connected to the
same phone line.

Connecting to a Single Phone Line

Follow these steps to connect the system to a single phone
line.
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