CGU 04i DESCRIPTION
21
2.7.5 CIO connector
Panel socket RJ45
Pin
number
Signal
mark
Description
Direction
1
I/O 5 Input/Output – analogue or binary input or binary
output (open collector)
Input/Output
2
I/O 4 Input/Output – analogue or binary input or binary
output (open collector)
Input/Output
3
I/O 3 Input/Output – analogue or binary input or binary
output (open collector)
Input/Output
4
+12V 12V supply of other circuits (connected
directly to modem supply)
Output
5
GND Signal and supply ground
6
I/O 2 Input/Output – analogue or binary input or binary
output (open collector)
Input/Output
7
I/O 1 Input/Output – analogue or binary input or binary
output (open collector)
Input/Output
8
Service For servicing purposes only
Input/Output
