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1.
Intent & Scope
This document describes the installation procedure for the ICE-400 series intercom stations, which includes the 2-
gang and 3-gang standard intercom station types ICE-420, ICE-421, ICE-430, ICE-431, as well as custom ICE-400
intercom station. The ICE-4x1 stations include a LED while the ICE-4x0 stations do not. Instructions on installing
a two sided door Primary/Secondary intercom station is also included.
2.
Description
The ICE-400 series of intercom stations include all intercom stations that are connected to a DXI system via a SAB-
400 or SAB-401 station audio board, or to a DXL system via a SCC-400 or SCC-401 station control card. Each ICE-
400 series intercom station is connected to the system with a single shielded twisted pair cable that carries all the
microphone, loudspeaker, switch, and LED indicator signals.
The ICE-400 series intercom stations can be ordered in several configurations. These include:
(i)
0, 1 or 2 switches. These switches are mounted on the faceplate and internally terminated. They can be
used for call request, program music selection, or other functions. The terminations allow the system to
detect open or short line faults.
The switch information is multiplexed with the audio signals over a single pair of wires.
(ii)
The LED stations, ICE-421 and ICE-431, are used with SAB-401 station audio board or SCC-401 station
control card. The LED is used to indicate call request status or active call status. Again LED status
information is multiplexed over the audio pair.
(iii)
A cord jack can be specified in place of the standard faceplate switch on the intercom stations.
(iv)
A vandal resistant switch, red mushroom button switch or mini-piezo switch can be ordered for the
intercom stations.
(v)
The switch contacts of a switch can be made available on a four-pin header. With external field wiring the
switch can then be used to operate an external device, i.e. open a door; turn on lights, etc. External
contacts can also be connected to this four-pin header. This allows external equipment to activate the
station switches and place call requests or act as a switch to change the music selection.
Document IM-ICE-400-1.1
ICE-400 Series Intercom Stations
2011 Harding Instruments - Printed in Canada
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Table of Contents
Summary of Contents for DXI MicroComm ICE-400 Series
- Page 1 Description The ICE-400 series of intercom stations include all intercom stations that are connected to a DXI system via a SAB- 400 or SAB-401 station audio board, or to a DXL system via a SCC-400 or SCC-401 station control card. Each ICE- 400 series intercom station is connected to the system with a single shielded twisted pair cable that carries all the microphone, loudspeaker, switch, and LED indicator signals.
- Page 2 ICE-400 Series Intercom Stations 4.50' Pin 1 CN4(CN5) 4.50' Pin 1 CN6(CN7) CN2(CN3) Pin 1 CN8(CN9) Pin 1 SW B Rear View of ICE-420 Intercom Station showing Connector Positions Installation A simplified diagram of the back view of an ICE-420 with one faceplate mounted switch is shown below. The headers CN2 (CN3) and CN8 (CN9) are always present.
- Page 3 SCC-401 in a DXL system. The shields are terminated at the field interface terminal block and are grounded through the cable that connects the terminal block to the DXI or DXL exchange. The audio line shielded twisted pair connects to pins 1 and 2 of a MTA-100-04 connector that plugs into CN8 (CN9) header labeled LINE.
- Page 4 ICE-400 Series Intercom Stations speaker and LED are connected using two terminal MTA connectors so that the customer can connect a 4-terminal MTA-100 to the switch input terminals. MTA Pin Signal LED - LED + Switch 2 - Switch 2 + Switch 1 - Switch 1 + Speaker -...
- Page 5 ICE-400 Series Intercom Station A second connection is possible whereby Switch B of the Secondary station will act as a Switch A. In this case the two stations acts as a single station with two call switches. This can allow the operator to distinguish between the two call requests.
- Page 6 ICE-400 Series Intercom Stations 6.38" Minimum Opening 5.44"W x 2.88" H x 1.75"D 3.63" Switch A Switch B 4 Mounting Holes 0.188" (3/16") 3 Gang Mounting Hole Details for 2-gang and 3-gang Intercom Stations Page 6 Document IM-ICE-400-1.1...
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