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User Manual IS 640-18 / August 2016 © ASL Intercom BV
4.0 INTERNAL WIRING IS 640-18
Pin 3 connections:
Each slide switch assigns the audio wire of each
intercom line (labeled 1
– 18) to the audio wire of
one of the 6 intercom channels (labeled A
– F).
Pin 1 connections:
The 0V/ground wire of all intercom channels are
connected to the ones of all intercom lines.
Pin 2 connections:
The 30V DC line power for the intercom lines with
odd numbers is derived from the line power on
channel A, C and E.
The 30V DC line power for intercom lines with
even numbers is derived from the line power on
channel B, D and F.
5.0
DIMENSIONS & WEIGHT
Width:
19” / 483 mm
Height:
1
,75” /44,5 mm
Depth:
25 mm
Weight:
320 grams
