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4
WIRING-
■ Terminal-block layout
— Connect power supply to
(Max. 25m/iromm5n807l8AWG)
1
I Meaning of terminal symbols
E terminal is common calling and communication line.
No. 1 ~40 terminals are selective station points, providing selective calling and communication.
C & M terminals are master-to-master communication.
R & T terminals are master-to-door adaptor transmit and receive lines.
S & S terminals are call tone output to IER-2 call extension speaker.
■ Cable requirements
Use 2-conductor cable (twisted or non-twisted) homerun to each sub station (0.65 - 1.0mm $,
22 - 18AWG).
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