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1.
Intent & Scope
This document describes the installation procedure for the 100 series intercom stations.
2.
Description
The 100 series of intercom stations include all intercom stations that are designed to be connected to the system
via an SAB-100 station audio board. Each 100 series intercom station is connected to the system with a single
shielded twisted pair cable that carries all the microphone, loudspeaker, switch, and indicator signals.
3.
Installation
The intercom stations are connected to the exchange with a single shielded twisted pair. The shields are all
grounded at the exchange end through the DB-50 connector and terminated through the BIX field interface block.
They are all left open at the intercom station end of the cable. Where the cable is connected to another cable the
shields must be continued from one cable to the other and care should be taken to ensure that the shields on the
different signal pairs are not connected together.
The connections to the intercom station are made with an AMP MTA-100 series connector. The intercom pair
should connect to pins 1 and 2 on the intercom station. To make these connections you should use an AMP tool
58074-1 with a 58246-1 head. The cable should be cut to length and the shield and outer jacket should be trimmed
Document IM- ICM-100-2.2
INSTALLATION
INSTRUCTIONS
100 Series Intercom Stations
Intercom Station - Rear View
MicroComm DXI
pin 1
© 1998 Harding Instruments - Printed in Canada
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Summary of Contents for Harding Instruments MicroComm DXI 100 Series
- Page 1 1 and 2 on the intercom station. To make these connections you should use an AMP tool 58074-1 with a 58246-1 head. The cable should be cut to length and the shield and outer jacket should be trimmed © 1998 Harding Instruments - Printed in Canada Document IM- ICM-100-2.2...
- Page 2 100 Series Intercom Stations back about 1/2 inch. Ensure that the shield is not exposed or it may short out exposed contacts on the intercom PCB when it is installed. The pin configuration of the station connector is: MTA Pin Signal audio + audio -...
- Page 3 100 Series Intercom Stations The ICB-100 is designed for mounting to a loudspeaker unit that incorporates a 1/4” thick security baffle such as a Lowell SQLK-8. To install the ICB-100, first the microphone shock mount must be mounted on the rear of the baffle plate as in the following illustration.
- Page 4 100 Series Intercom Stations Talkback Kit Microphone Installed The circuit board of the talkback kit is encased in a non-conductive heat shrunk case with two strips of Velcro mounted on the back. Remove the exposed adhesive protective strip from the Velcro and gently press the talkback kit on to a convenient mounting location on the loudspeaker cone frame as in the following illustration.
- Page 5 100 Series Intercom Stations Wire Signal Orange Mic - White Mic + Black Speaker Green Speaker Yellow Switch 1 Yellow Switch 1 Switch 2 Switch 2 The intercom talkback unit is connected to a station audio board the same as any other intercom station via the MTA connector.