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MR52 Reader Interface
Specs come from the parts catalog. Wiring diagram
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| Power | 12–24 VDC ±10%, 550 mA max excluding readers |
|---|---|
| Power wire | 18 AWG min |
| Sio | 2-wire RS-485, 4,000 ft, 24 AWG shielded twisted pair, 120 Ω |
| Reader power | 300 mA max per port |
| Reader cable | TTL 6-cond 18 AWG 500 ft; F/2F 4-cond 18 AWG 500 ft; RS-485 24 AWG shielded 2,000 ft |
| Inputs | 8 + tamper + power fault; 1k/1k 1% EOL; 30 Ω max loop |
| Relays | 6 Form C; NO 5 A @ 30 VDC, NC 3 A @ 30 VDC |
| Dimensions | 6 x 8 x 1 in |
| Temp | 0–70 °C |
Verify against the manufacturer's install guide.
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