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Communications RS485
Input TTL Input x 4
Supervised Input x 4
Output TTL Output x 6
DM-20 provides secure door control of up to four doors via encrypted communication and also contains two wiegand reader interfaces for use with 3rd party readers. A wide variety of I/O interfaces allows DM-20 to be a part of diverse system configurations.

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Access Contol Panel, Suprema

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