4 DOOR ACCESS CONTROL EXPANDER MD-D04B
The expansion board adds an additional four reader or keypad inputs, four relay outputs and four supervised inputs to the access control panel.
As a result, an access control panel with an MD-D04B expansion can support a total of eight readers and eight door panels.
In addition, it is possible to add any keypad or biometric reader that supports the Wiegand or Clock & Data transmission formats.
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Electrical Characteristics
Input Voltage
12 VDC
Input Current (not including attached devices)) Standby:
30 mA
Maximum:
190 mA
Number of Reader Ports
4
Number of Inputs
4
Number of Outputs
4
Output Relays
5 A with N.O., N.C., and COM contacts FormC relays
Inputs Voltage
5 VDC maximum voltage
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