MCX2D Operating Manual
12.11.2020
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Fig. 2 MCX2D expander
Table 3. MCX2D screw terminals
Name
Description
BAT+, BAT-
Backup battery
VIN+, VIN-
13.8VDC input power supply
AUX+, AUX-
13.8VDC/0.2A output power supply (for general purpose)
VOUT+, VOUT-
13.8VDC/0.2A output power supply (to controller)
A, B
RS485 bus (to controller)
Ax*, Bx
RS485 bus (to readers)
TMLx+, TMLx-
13.8VDC/0.2A output power supply (to readers)
VDRx+, VDRx-
13.8VDC/1.0A output power supply (to door lock)
LCKx
15VDC/1A transistor output line (door lock)
BELLx
15VDC/1A transistor output line (alarm signalling device)
DCx
Input line (door contact)
DRx
Input line (exit button)
* x symbol corresponds to the number of particular door controlled via expander
