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Mercury MR52

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MR52 Reader Interface

Specs come from the parts catalog. Wiring diagram

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Specs

Power12–24 VDC ±10%, 550 mA max excluding readers
Power wire18 AWG min
Sio2-wire RS-485, 4,000 ft, 24 AWG shielded twisted pair, 120 Ω
Reader power300 mA max per port
Reader cableTTL 6-cond 18 AWG 500 ft; F/2F 4-cond 18 AWG 500 ft; RS-485 24 AWG shielded 2,000 ft
Inputs8 + tamper + power fault; 1k/1k 1% EOL; 30 Ω max loop
Relays6 Form C; NO 5 A @ 30 VDC, NC 3 A @ 30 VDC
Dimensions6 x 8 x 1 in
Temp0–70 °C

Verify against the manufacturer's install guide.

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