MCX402DR Operating Manual.doc
2018-09-03
10/11
Fig. 9 MCX402DR board
MCX402DR terminals
Term.
Description
Term.
Description
BAT+
Battery positive pole
GND
Ground
BAT-
Battery negative pole
IN7
IN7 input line
P1
Power supply input
IN8
IN8 input line
P2
Power supply input
IO1
IO1 output line
COM1
REL1 relay common terminal
IO2
IO2 output line
NC1
REL1 relay output (NC)
IN1
IN1 input line
NO1
REL1 relay output (NO)
IN2
IN2 input line
CLK
RACS CLK/DTA interface, line CLK
GND
Ground
DTA
RACS CLK/DTA interface, line DTA
IN3
IN3 input line
GND
Ground
IN4
IN4 input line
A
RS485 communication bus, line A
TML
Power supply output 12VDC/0.2A
B
RS485 communication bus, line B
AUX
Power supply output 12VDC/1.0A
GND
Ground
NO2
REL2 relay output (NO)
IN5
IN5 input line
NC2
REL2 relay output (NC)
IN6
IN6 input line
COM2
REL2 relay common terminal
Specification
Supply voltage
Nominal 18VAC, min./max. range 17-22VAC
Nominal 12VDC, min./max. range 10-15VDC
Nominal 24VDC, min./max. range 22-26VDC
Backup battery
13.8V/7Ah, charging current app. 300mA
Average current
consumption
100 mA (excluding load points connected to AUX and/or TML outputs)
