System 420 Caller ID
(430-0971)                 Preparation                Faxback Doc. # 39661


INSTALLING BATTERIES

Your system uses two AAA batteries to maintain information in memory
during power failures.  For the longest operation and best performance, we
recommend you use alkaline batteries such as Radio Shack Cat. No. 23-555.

    Cautions:

    Use only fresh batteries of the recommended size and type.

    Do not mix old and new batteries, different types of batteries
    (standard, alkaline, or rechargeable), or rechargeable batteries of
    different capacities.

    When you replace the batteries, have fresh batteries on hand before
    you begin.  You must install fresh batteries immediately after
    removing the old batteries; otherwise, you might lose the information
    stored in the system.

    When you replace the batteries, do not press any buttons on the system
    after you remove the old batteries.  Doing so might erase all stored
    information from the system.

    Never leave dead or weak batteries in the system.  Batteries can leak
    chemicals that can destroy electronic circuits.

Dispose of old batteries promptly; do not bury or burn them.

1.  Make sure the system is unplugged from the telephone line and
    AC power.

2.  Use a Phillips screwdriver to remove the screw in the battery
    compartment cover on the bottom of the system, then remove the cover.

3.  Insert fresh batteries into the compartment as indicated by the
    polarity symbols (+ and -) marked inside the compartment.

4.  Replace the cover and secure it with the screw.

    Note:

    When (SYMBOL) appears on the display or the display dims, replace the
    batteries.

CONNECTING THE AC ADAPTER

The AC adapter must be connected for the System 420 to operate.

    Note:

    You must also keep batteries in the system to protect the information
    stored in memory during power failures.

    Cautions:

    You must use an AC adapter that supplies 9 volts DC and at least
    50 milliamps.  Its center tip must be set to negative, and its plug
    must correctly fit the system's DC 9V jack.  The supplied adapter
    meets these specifications.  Using an adapter that does not meet
    these specifications could damage the system or the adapter.

    Always connect the AC adapter to the system before you plug it into
    the AC outlet, and unplug the adapter from the AC outlet before you
    unplug it from the system.

Follow these steps to connect the supplied AC adapter.

1.  Insert the AC adapter's barrel plug into the DC 9V jack on the back of
    the system.

2.  Plug the other end of the AC adapter into a standard AC outlet.

RESETTING THE SYSTEM

Before you use the system the first time or to reset the system's clock
any time, use a pointed object, such as a straightened paper clip, to
press RESET on the back of the system.  12-00-00A appears.  This resets
the clock and the area code; it does not clear any stored call information.

If the system does not work after you reset it, remove the batteries
(this clears all stored call information), disconnect the system from the
phone line and the AC outlet, replace the batteries with fresh ones
(if necessary), then reconnect it and try resetting it again.

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.  Radio Shack 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) (for a two-line phone).

Connecting to a Single Phone Line

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

1.  Unplug the existing telephone's modular cord from the modular phone
    jack and plug this cord into the system's PHONE jack.

2.  Plug one end of the supplied modular cord into the system's
    TEL.LINE jack.

3.  Plug the other end of the cord into the modular wall jack.

Connecting to a Two-line Phone

To record information about calls received on a two-line phone, you can
connect two systems using a triplex adapter (Cat. No. 279-402).
Each system only records information about calls received on the line to
which it is connected.

Follow these steps to connect two systems to a two-line phone.

1.  Unplug the existing telephone's modular cord from the modular phone
    jack and plug it into L1 + L2 on the triplex adapter.

2.  Plug the triplex adapter into the modular phone jack.

3.  Plug one end of the supplied modular cord into the TEL. LINE jack on
    one of the systems.

4.  Plug the other end of the modular cord into either L1 or L2 on the
    triplex adapter.

5.  Repeat Steps 3 and 4 to connect another system to the remaining open
    jack (L1 or L2) on the triplex adapter.

Connecting to an Answering Machine

1.  Unplug the answering machine's modular cord from its line jack and
    plug this cord into the system's TEL. LINE jack.

2.  Plug one end of the supplied modular cord into the system's
    PHONE jack, then plug the other end of the cord into the answering
    machine's line jack.

3.  Set the answering machine to answer calls after at least two rings.

SETTING THE TIME

When no call records are displayed, the system displays the time.
The telephone company sets the time with each incoming call; however,
you can also set the time yourself.  Follow these steps to manually set
the time.

1.  When the system displays the time, press and hold READ until the time
    flashes on display.

2.  Press REVIEW /\ to set the hour.

3.  Press REVIEW \/ to set the minute.

4.  Press READ to store the setting.

ADJUSTING THE DISPLAY CONTRAST

1.  Repeatedly press MODE until the system displays CALLER ID MODE.

2.  Press either REVIEW button.  The system displays the total number of
    stored calls.

3.  Press and hold READ for about 6 seconds.  The system shows
    CONTRAST:XX.

4.  Press REVIEW /\ to increase the contrast (up to 15) or REVIEW \/ to
    decrease it (down to 00).

5.  Press READ to store the setting.

STORING YOUR LOCAL AREA CODE

You must store your local area code in the system so it does not dial the
area code when it dials/redials a local call.  Follow these steps to store
your area code.

1.  Repeatedly press MODE until the system displays  (AREA CODE):----.

2.  Press REVIEW /\ or REVIEW \/ to set the first digit.

3.  Press READ to store the selected digit, the next digit flashes.

4.  Repeat Steps 2-3 to set the next two digits.

5.  Press MODE to store the area code.

(br/km-05/20/1997)

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