Toa IC-100 Supplementary Manual
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Toa IC-100 Supplementary Manual

Toa IC-100 Supplementary Manual

Toa ic-100 intercom system: supplementary guide
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Product Support
Using a Speaker and 25V Line-Matching
Transformer as an IC-100 Sub-Station
Article ID:
1001expl
Created:
90.12.03
Modified:
97.04.09
Category:
IC-100 Stations
Issue:
Installation
Summary
You can build a limited function IC-100 sub-station using simple, readily
available components.
Details
TOA designed its IC-100 sub-station ports for connecting speakers equipped
with 25V line matching transformers. DC signaling between those ports and
TOA sub-station hardware provides additional functions.
The sub-station shown below supports half-duplex conversations and the
reception of pages, time signals and audio program (BGM). Optional switches
add call-in and privacy functions.
For call or privacy LED indication, or for initiating a call while receiving a
page, install an RS-100 Switch Panel or an RS-102 Call Module. For private,
duplex conversations, install an RS-110 Handset Sub-station with either an
RS-100 or an RS-102.
Diagram
LU-100
A
B
CN6 ~ CN20
C
A
Speaker with 25V Line
B
Matching Transformer
10 f 50V
Call Switch
1k
1/4 watt
(optional)
Privacy Switch
(optional)
1k
1/4 watt

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Summary of Contents for Toa IC-100

  • Page 1 IC-100 Stations Issue: Installation Summary You can build a limited function IC-100 sub-station using simple, readily available components. Details TOA designed its IC-100 sub-station ports for connecting speakers equipped with 25V line matching transformers. DC signaling between those ports and TOA sub-station hardware provides additional functions.
  • Page 2 Installation Summary Connecting an external amplifier to an IC-100 sub-station port provides that amplifier with all of the audio distribution features of an IC-100 sub-station. Details The circuit shown below uses capacitors for blocking the DC signaling voltages normally used by IC-100 sub-stations. Resistors drop the speaker signal to line level.

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