DMP Electronics 734N Series, Инструкция по установке и программированию

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Digital Monitoring Products, Inc. | 734N Series Installation and Programming Guide 15
Connect an OSDP Card Reader
The 734N Series provides 12/24 VDC, 200 mA power to the reader on the RED
terminal connection and two‑way data transmission on the GRN and WHT
connection. Only one OSDP reader can be connected to a module.
Use 24 AWG or larger two conductor RS‑485 cable to connect a reader to
module terminals. For data transmission, connect the A (485 –) wire to the GRN
terminal and the B (485 +) wire to the WHT terminal. For reader power, connect
the red (DC +) wire to the RED terminal and the black (DC –) wire to the BLK
terminal. Refer to Figure 11.
Wire colors may be different depending on the reader. Refer to literature
provided with the reader for wire coding, distance, and other specifications.
Note: OSDP card readers require 734N Series Access Control modules with
PCB Rev 9 and higher.
6b