5.1.2 Switches & Jumpers:
• S1 Address Mode: When the switch is set to
DISABLE, the Module Number cannot be changed
from a master on the data highway. When set to
ENABLE, the Module Number can be changed for the
next ten minutes from a master on the data highway.
During this time the ADDRESS light is on.
• S2 RS485-120: When the jumper is set to IN, the
RS-485 line is terminated by a 120 ohm resistor. Only
the last Control Module on the data highway should be
set to IN.