MS Series PABX User Manual
2
Chap 2 Installation & Connection
Before Installation
For easy and quick installation, it is strongly recommended that user
read and follow the following instruction carefully so as not to damage the
system accidentally by incorrect operation.
2.1 System Appearance
● NOTE:
1. For 108 &208, the 1 CO.interface pin1 & pin4 is a relay output port
for door lock, pin 2 & pin3 is for CO line. As picture:
2. For 208 &308, the 3 CO.interface pin1 & pin4 is a relay output port
for door lock, pin 2 & pin3 is for CO line. As picture:
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