Virginia Controls, LLC
MH-3000 User Manual, 1_03C10-VC
Page 38
5.5.1.4.4
Incoming Power Connector
The Incoming Power Connector is a
terminal block located in the bottom left
corner of the CPU board.
The incoming power is 12VDC from the
power supply located near the CPU.
If the CPU board is replaced, the incoming
power wires must be connected to the
correct terminals. The upper terminal is "+"
and the lower terminal is "-". The connector
is shaped so that the mating terminal plug
can not be inserted upside down.
5.5.1.4.5
Input/Output Bus Connector
The Input/Output Bus Connector is on the
left of the CPU board.
An RJ45 style cable is used to connect to
the first I/O board.
The other I/O boards are connected to
each other using a daisy chain method, with
the CPU connecting to the I/O COMM IN of
board #1, then the I/O COMM OUT of board
#1 connects to I/O COMM IN of board #2,
and so on for all I/O boards.