Aiphone GT-VAX User Manual

1011

CCTV Interface Module for GT Multi-Unit Video Entry System

- INSTRUCTIONS -

The GT-VAX is a video module that provides a connection for up to 2 external CCTV cameras for viewing
the area surrounding the GT entrance panel. When a visitor calls from the entrance station, the view from
the separate CCTV camera will be seen on the tenant's monitor station. The tenant has the option to switch
over to a second CCTV camera (if equipped). The GT-VAX module will be installed in the entrance panel,
but will not be seen.

ENTRANCE PANEL CONFIGURATION:

1. The GT-VAX module takes the place of the standard GT-VA module, and must be located in the entrance
panel.

2. A blank plate (GF-BP) is required to cover the GT-VAX, so it will be out of sight from the outside of the
panel.

3. The remote CCTV camera (powered locally) connects to the back of the GH-VAX module as shown
below. The camera location is intended to provide a wider view of the lobby or entry area, other than a
direct frontal view of the visitor.

4. Build the remainder of the GT entrance panel in the same manner as any other GT station, with the GT­DA-L Audio Module connected directly with the GT-VAX, then all other modules connected as
designated in the GT Installation & Operation Manual.

5. Programming and operation of the GT entrance panel when using the GT-VAX CCTV interface module is
the same as a standard GT panel.

WIRING DIAGRAM:

CCTV Cameras

(powered locally)

Coax

Default Camera

Coax

Secondary Camera

If only using 1 CCTV camera,
connect it to the Yellow and Black
wires. The secondary camera to
the Brown and Red wires will be
used if you desire another camera
in the lobby area and the ability to
switch between the two cameras.

Yellow wire
(video in, +)

Black wire
(video in, ground)

Brown wire
(video in, +)

Red wire
(video in, ground)

GT-VAX w/ GT-DA-L

(rear view)

ON

CN1

CN6

CN2

To GT-SW

or GT-NS

1234

SW1

ON

1234

SW2
SW3

ON

1234

A1 A2

R1 R2 ELB ELC ELM BP BP

VR1

GT-VAX:

This unit is used in place of a standard
GT-VA, so there is no camera built into
the entrance panel. The only video is
from the external CCTV camera(s).

Video wire #871802

Audio wire #872002

GT-VBC

­+

GT-BC

-+

-

Distribution

Point

B1/B2 to

Tenant

PS

R1/R2 to

Tenant

OPTIONAL CONFIGURATION (Stand-alone CCTV Adaptor):

1. GT-VAX can be used as a stand-alone CCTV adaptor if system capacity allows it. This station will count as
1 of the 16 entrance panels allowed in the system. No programming is required at this entrance.

2. Stand-alone camera panel should be comprised of (1) GT-VAX, (1) GF-BP, (1) GT-DA-L, (1) GT-DP, (1)
GF-2F. Either GF-2B (semi-flush) or GT-102HB (surface mount) should be used for mounting the
hardware.

3. The dip switches on the GT-DA-L associated with the GT-VAX must be set as a separate entrance panel
from any other entrance panel in the system. It is recommended that these dip switch settings be adjusted
with the power on the GT-BC and GT-VBC turned off. If the dip switch settings are changed with power
applied, you must recycle power to the GT-BC and GT-VBC prior to the changes taking affect.

Note: Dip switch 1 on the GT-DA-L must be on to enable the monitoring feature from the tenants.
Refer to GT instructions, Section 5-18.

4. Video image will come from the remotely located CCTV camera, and will be triggered on only when the
stand-alone panel is engaged. This occurs when a tenant cycles through the entrance stations by pressing
the KEY button (sequentially) when the system is in standby mode. (If a visitor calls from an entrance
station, tenant viewing will be cut off).

Audio/Data wire

CCTV Camera

(powered locally)

#872002

AIPHONE

To GT-BC

(see GT Installation Manual)

coax

Video wire #871802

To GT-VBC

(see GT Installation Manual)

GT-VAX with GT-DA-L

(Used as CCTV camera adaptor)

OPERATIONS:

1. Visitor comes to Entrance panel and calls tenant. (See standard operational instructions.)

2. Video image will come from the remotely located CCTV camera, and will be present on the tenant monitor
only when the entrance panel is engaged, or when a tenant selects that entry to be viewed. If full time
video is required from that camera, alternate connections are required.

3. Use the guard key on the tenant station to switch between cameras attached to the GT-VAX (if equipped).

Note: Monitor mode functionality (of a entry station or GT-VAX in stand-alone configuration) is of the lowest

overall priority and will be overridden by any other system communications or calling function.

SPECIFICATIONS:

Power Source: Supplied from GT-VBC
Video Input: 1V peak-to-peak, 75 ohm (composite video)
Mounting: GT-VAX video module mounts inside GT entrance panel in place of standard GT-VA module

Use GF-BP blank panel to cover the GT-VAX module
Temperature: 32°F ~ 104°F (0°C ~ 40°C)
Terminations: Color-coded prewired pigtails, connector, and tension terminals
Wiring: 2 conductor, non-shielded, solid wire from GT-VBC. Use Aiphone 871802 wire.
Wiring Distance: 980' from GT-VBC
Dimensions (HxWxD):

3-5/8" x 4-1/4" x 2"

NOTE: Only information concerning the GT-VAX is shown here. For complete system installation, please refer to the
GT installation manual.

Aiphone Communication Systems
1700 130th Ave. N.E.
Bellevue, WA 98005
[phone]
FAX [phone]

TOLL FREE TECHNICAL SUPPORT:

[phone]

E-MAIL: [e-mail]

GT-VAX Instr.

1011JD