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PAGE 13 of 68 VX2200 TECHNICAL MANUAL VER1.5

VANDAL RESISTANT FUNCTIONAL PANELS

This module is used in the VX2200 2 wire audio, 6 wire video functional

vandal resistant door panels and includes all features required for audio &

video installations. A 13.8Vdc PSU is required to power this system. Up to

23 buttons can be connected to this module. (This module cannot be used

with 316x phones).

MAKING A CALL

Press the relevant button: 5 quick beeps will indicate if the system is busy,

otherwise the call will be signalled by a slow intermittent acoustic signal

until the call is answered, times out or the call is interrupted by pressing a

push button for more than 2 seconds. A short intermittent acoustic signal

indicates that the door is open. A yellow LED indicates conversation has

begun and a green LED indicates relay activation.

CONNECTION FUNCTION

Normally closed connection of relay

Common connection of relay

Normally open connection of relay

PTE

Push to exit button input (Switch to 0V)

Switched 0V output (0V during a call for video power supply switching)

Busy signal to other panels (12Vdc in standby, 0V during a call)

Bus connection approx. 7.5Vdc

0V for bus

+12

12Vdc input to power the amplifier

0V from PSU

VOLUME ADJUSTMENT

There are three volume adjusters on the door panel as follows:-

Speaker volume Microphone volume

CONNECTING ADDITIONAL BUTTONS

Up to 23 buttons can be connected to the modules using an X-Y

matrix and the wiring harness as shown here.

Factory reset

To revert to factory default settings as shown in ( ) below, power down the 138 amplifier short PTE to

ground, power up and await 6 beeps, remove the short.

Programming

There are several features of the amplifier that can be programmed into non-volatile memory. Entering each

programming stage requires the shorting of certain connections on the button matrix using the connectors 5

& 6 labelled above. Remove the plug from connector ABCD so that the connectors 5 or 6 can be connected

to the relevant pin as outlined in the tables below. Beeps are used to indicate the new setting as outlined in

the tables below. The procedure to program these settings is as follows:-

Balance between

microphone volume and

speaker volume

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 67 68

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