Mercury Security © 2015 MR51e DOC 10107-0035 REV 1.06 Page 7
10. Specifications:
The interface is for use in low voltage, Class 2 circuits only.
Power Input: PoE Power Input 12.95 W, compliant to IEEE 802.3af
– OR –
12 Vdc 10 %, 900 mA maximum
Power Output: 12 Vdc @ 650 mA maximum (reader and AUX outputs combined)
Reader (TB3) 12 Vdc (10.3 through 12.6) @ 180 mA maximum
AUX (TB5) 12 Vdc (10.7 through 13.0) @ 650 mA maximum
Note: For UL, the Power Sourcing Equipment (PSE) such as a PoE enabled network switch and/or PoE
power injectors must be UL Listed under UL294B.
Output: Two relays, Form-C contacts rated at 5 A @ 30 Vac/dc
Inputs: Four unsupervised/supervised, End of Line resistors, 1k/1k ohm, 1%, ¼ watt
standard
Reader Interface:
Power: See Power Output above.
LED Output: TTL compatible, high > 3 V, low < 0.5 V, 5 mA source/sink maximum
Buzzer Output: Open collector, 12 Vdc open circuit maximum, 40 mA sink maximum
Data Inputs: Reader port 1: TTL compatible, F/2F or 2-wire RS-485
Reader port 2: TTL compatible or F/2F
Cable Requirements:
Communication: Ethernet, Category 5, minimum
Power: 1 twisted pair, 18 AWG
Alarm Inputs: 1 twisted pair per input, 30 ohm maximum
Reader data (TTL): 6-conductor, 18 AWG, 500 ft. (152 m) maximum
Reader data (F/2F) 4-conductor, 18 AWG, 500 ft. (152 m) maximum
Reader data (RS-485): 1 twisted pair with drain wire and shield, 24 AWG, 120 ohm impedance
2000 foot (610 m) maximum
Environment:
Temperature: -55 to +85 C, storage
0 to +70 C, operating
Humidity: 5 to 95 % RHNC
Mechanical:
Dimension: 5.5 in. (140 mm) W x 2.75 in. (70 mm) L x 0.96 in. (24 mm) H without bracket
5.5 in. (140 mm) W x 3.63 in. (92 mm) L x 1.33 in. (34 mm) H with bracket
Weight: 4.2 oz. (120 g) without bracket
5.3 oz. (150 g) with bracket
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