AERCO ProtoNode Gateway Rev 3 (with external LEDs) - Manual (Page 22)

AERCO ProtoNode Gateway
User Manual
Page 22 of 126 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0080_0H
11/06/2014 Ph.: 800-526-0288 GF-129
3.8.1.2 Setting the PMC Board RS-485 DIP Switches Instructions
The 4-position RS485 DIP Switch (S2) on the PMC PCB of the C-More Controller must be
set as follows for use with the ProtoNode:
• The termination (TERM) and bias (BIAS1 & BIAS2) DIP Switches of S2 must be set
to DISABLE.
• If an Oxygen Sensor is connected to the C-More Controller, switch R1 (see below)
should be set to DISABLED (down). If an Oxygen Sensor is NOT connected to the
C-More Controller, it should be set to ENABLED (up). Improper setting of R1 may
result in error messages.
Figure 3-12: C-More Controller PCB DIP Switch Settings
NOTE
If bias is needed, activate the ProtoNode bias jumpers. If
termination is needed, .activate the ProtoNode termination
jumpers as well as the termination dip switch in the last
boiler/heater’s I/O box at the end of the RS485 daisy chain.
If an Oxygen Sensor is attached to the C-
More Controller, set R1 to DISABLED
(down). If an Oxygen Sensor is NOT used,
set R1 to ENABLED (up). Factory default
setting is ENABLED.
ENABLE
DISABLE
BI
A
S
2
T
ER
M
BI
A
S1
R1
S2
RS485
R1