BECKHOFF M1110 - Manual (Page 9)

M1110 Parallel Input / Output Box Beckhoff II/O-System
Date 09.03.93 Version 2.1 Page 9 of 17
Power Supply
external
There is a three pole plug connection (Lumberg) for supply voltage with separate connections
for control logic / inputs (pin 1) and for outputs (pin 3) at same ground (pin 2).
internal
There is a three pole plug connection for supply voltage with separate connections for control
logic / inputs (+) and for outputs (A) at same ground (-).The plug-in card 1210 is
automatically connected to the supply voltage of the lower board if plugged in.