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APPENDIX B. ELECTRICAL AND DATA CONNECTIONS
IS-2200CA/4500CA INVERTER POWER SUPPLY
B-2
990-412
RS-485 (optional)
Two DB-9 (female) connector wired as follows:
RS-485 allows multiple Power Supplies to be daisy chained to a host.
TRANSFORMER SENSING CONNECTOR
PIN
DESCRIPTION
A
Common (Thermostat)
B
Thermostat
C
Voltage
D
Current
E
Current
F
Voltage
G
Ground
FRONT VIEW
#1 – Not Used
#2 -- Not Used
#3 -- Not Used
#4 -- Tx+
#5 -- Tx-
#6 -- Not Used
#7 -- Not Used
#8 -- Rx+
#9 -- Rx-
Summary of Contents for S-2200CA
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