Video DoorPhone System
(490-2600)                 Installation               Faxback Doc. # 34178


INSTALLATION OF MONITOR

1.  Terminal location (Under side of Monitor Unit):

    Wire terminals S+ / S- to Additional Speaker
    Wire terminals D+ / D- to Door Release
    Wire terminals L+ / L- to Camera Unit

2.  Mounting Height:

    Standard installation height of monitor:  .... 130 cm to base of camera
                                         145 cm to center of monitor screen

3.  Wall mounting:

    Directions:

       Run wires through the wall and mounting bracket, ensuring center of
       mounting screen "x" is at the desired height.

4.  Desk top use:

    Turn monitoring unit over and install the 2 rubber feet on the bottom
    at the front of the unit.

    Install the table stand in the notches at the back of the unit.

    Turn the monitor unit over and set on desk top at desired location.

INSTALLATION OF CAMERA

1.  Terminal Location camera unit:

    Wire terminals B+ / B- to External Bell
    
    Wire terminals L+ / L- to the Monitor Unit

2.  If external bell is used, switch OFF the INT. BELL switch on back of
    camera.

3.  If internal bell is used, adjust the volume with the VOLUME & CHIME
    preset using a small screwdriver.

Mounting on the wall

The standard installation height of the camera is 140 cm to the base and
150 cm to the center of the camera lens.

In case the camera is installed in an area where the background of a
photographic object is brighter and the object does not receive light from
its front side, the object is displayed darker on the video screen and is
not monitored correctly.  If this occurs, provide additional measures of
lighting from the front side of the photographic object.

WIRING PROCEDURE

NOTE:  Do not reverse wire polarity, otherwise, the monitor unit will not
       turn on.

See Faxback Doc. # 34181, Fig. A

Wires Used: .............. 0.65mm DIA or thicker (2-core parallel wire) or
                                                       Coaxial cables 3C2V

Maximum length of cable should not exceed 300 ft.

Standard Wiring Distance
Wiring                             Length

Between Camera                     50m
and Monitor Unit

Between Monitor                    50m
and Additional
Speaker


Replacing the System with Existing Intercom or Doorchime (see Faxback Doc.
# 34181,Fig. B)

Use the dotted line as it is, and insert the plugged cord of the video
intercom into the wall outlet.

IMPORTANT:  Remove unnecessary wiring which may remain between the video
            doorphone and the camera, as otherwise the reproduced voice and
            picture may be disturbed. (i.e. keep the wiring runs as short
            and direct as possible).

            The installation position should be determined considering the
            viewing area of the unit camera.


(LB/EB 07/25/96)