Honeywell 301C User Manual page 19

The connectors, or ports on the PCB allow you to connect various
wiring to the controller. The wiring includes power, communication,
BACNet and relays, each with an assigned position (and number) on
the board:
J22 Power Input:
J23, J24 Communication
inputs:
Relay Outputs 1-4:
SHDN jumper
EOL Resistors 1-4:
510324
4/07
Connect the power supply to the controller
(see Wiring Details for cabling diagrams)
Connect communication cables to channels 1
through 3. Channel 4 is reserved for Modbus
slave communication.
Depending on the desired configuration,
connect the relay cables to either N.O. or N.C.
Place the jumper over the Shutdown header
pins to reset or restart the system.
Place the jumper over the header pins to
create the connection to attenuate
communication echoes.
301C User Manual
Honeywell
Introduction
Wiring Details
17