Aiphone GT-1M-L User Manual download pdf (Page 9)

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Aiphone GT Video-intercom System Guide

GT Standard Configuration

The Standard Configuration for a GT video-intercom system is illustrated below.

The configuration from the residence (or tenant) trunk lines to the tenant monitor

stations is the same for the Standard and the Expanded Configurations, and is

illustrated is a subsequent section.

The video output from the video entrance station is connected to the GT-VBC Video

Bus Control Unit, which has 6 trunk line outputs.

The audio and control output from the entrance station is connected to the GT-RC

Bus Control Unit, and then out to 6 trunk lines from a Distribution Point (that must

be provided by the installer).

The separation of the video and audio/control distribution allows an audio

intercom-only system to be implemented by omitting the video component of the

modular entrance station, the GT-VBC, and all of the video distribution cabling.

There is a table in the GT video-intercom installation manual indicating the

maximum cable distances between all GT modules, depending upon the gauge of

PE cable used. The 0.8mm column should be used from this table if 0.9mm PE

cable is being used in the installation.

While only one modular entrance station is shown above, any of the modular

entrance stations, or the integrated entrance station may be used. Also, multiple

entrance and concierge stations are supported, as indicated in the “Maximum

Supported Modules” table above.

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Aiphone GT-1M-L User Manual Page 9