System 404 Four Line Telephone System  
(430-0451)                 Installation               Faxback Doc. # 33051

Before connecting System 404 to the phone lines, you must notify the phone
company of the FCC registration number and the ringer equivalence number.
These numbers may be found on the label on the bottom of the unit.

WARNING:  System 404 must not be connected to party-lines or coin-operated
          systems.

To use the full four-line capability of the System you will need two RJ-14C
modular jacks.  These jacks look the same as a standard, single-line,
modular phone jack but they are wired differently - each jack contains two
separate phone lines.

The drawing below show the wiring of a RJ14 two-line jack as compared to a
standard single-line jack (RJ11).

One pair of phone wires (two wires) are required for each phone line.  In
the single-line jack the red/green pair are the phone line in most cases,
the yellow/black pair are not used; occasionally they are used to provide
power for a lighted dial or other special feature.

In the two-line jack the red/green pair are one phone line and the yellow/
black pair are the other.  The presence of a yellow/black pair does not
automatically mean that a second phone line is available.  The phone
company will have to provide each phone line, even if you wire your own
jacks.

If you already have four single-line jacks, you may combine them quickly
and easily into 2-line jacks (RJ14), by using two-line couplers (279-401).
Then connect your four-line system to the couplers.

PHONE LINE AND POWER CONNECTIONS

1.  Plug the AC power adapter into a 3-prong grounded AC outlet.

    NOTE:  If the AC outlet is not properly grounded, the line indicators
           will not work.

2.  Connect the modular jacks on the AC power adapter to the modular wall
    jacks, using the supplied modular cords.

    If you want to connect more than one station to the same modular
    jack(s), use a duplex jack (279-357).

VERIFYING LINE LOCATIONS

Jack wiring and modular cord connections affect which line is "assigned" to
each line button.

To verify line locations:

1.  Press a line button and lift the handset.

2a.  If you hear a dial tone, place a call to one of your System telephone
     numbers.

    If you get a busy signal, the number you called is assigned to the
    button that you pressed.

    If the phone rings, the number you called is assigned to the flashing
    line button.

2b.  If you do not hear a dial tone in a System that is connected to less
     than four lines, the button is not being used; set the status-defeat
     switch (located in the battery compartment) for that line to ON to
    deactivate the button.

    NOTE:  If you do not set the status-defeat switch for unused lines to
           ON, the indicator will constantly flash.

           If there is no dial tone in a System that is connected to four
           lines, the jack wiring is probably not correct.

3.  Remove the plastic cover from the number label and record the assigned
    phone number.  Repeat steps 1 and 2 until all line positions are
    verified.

LINE VOLTAGE ADJUSTMENTS

System 404 determines the status of a line (in use, on hold, etc.) by
sensing the change in voltage flowing in the phone line.  The voltage
available will vary depending on the type of system and the distance
between the telephone company central office and your location.

By following the procedures below, you may match the System to the
available line voltage at your location.

1.  Remove the plastic cover and number label (below the line buttons), to
    expose the status adjustment screw.

2.  Press a line button and lift the handset; you should hear a dial tone.

3.  Place a call to any number, other than the number in your System.

4.  After the connection is established, use the supplied adjustment tool
    to turn the adjustment screw fully clockwise; the line indicator will
    begin to flash.

5.  Now slowly turn the adjustment screw counterclockwise, until the
    indicator lights steadily.

6.  Finally, turn the screw about 1/8 turn past the changeover point
    located in step 5.

7.  To verify that the setting is correct, place the call on hold by
    pressing and releasing the HOLD button; the indicator should begin
    flashing slowly.

    If the indicator remains on steadily, repeat the adjustment procedure.

    If the indicator goes off, move the hold-condition NORMAL/LOW CURRENT
    switch (in the battery compartment) to the LOW CURRENT position and
    return to step 3 above.

8.  After successfully placing a call on hold, re-establish the call by
    pressing the line button, and confirm that the indicator lights
    steadily to show the line is in use.

9.  Verify that the status indicators operate correctly for all active
    lines, if any line does not show the proper status indication, repeat
    steps 2 through 8 on this line.

WALL INSTALLATION

The System 404 telephone may be mounted on the wall, if desired.

1.  Clip the provided wall mounting bracket into the four small holes in
    the bottom of the telephone.  The keyhole in the bracket should point
    the same direction as the keyhole molded into the bottom of the phone.

2.  Select two screws with heads that fit the keyhole slots and install
    them one above the other and 6 5/8 inches (168mm) apart; the screw
    heads should remain about 5/32 inch (4 mm) out from the wall.

3.  Route the power adapter cord through the groove in the bottom of the
    phone.

4.  Position the keyholes over the screws and pull down until the phone is
    securely in place.

5.  Make power and phone line connections as described on page 4-6.

CONNECTING AUXILIARY DEVICES

The modular jack on the back of each System 404 telephone may be used for
connections of answering machines, auto-dialers, or other single-line phone
devices. The auxiliary devices may be connected to only one line at a time.
Select the desired line by pressing the corresponding line button.


(LB/EB 5/10/96)