
Mercury Security © 2014 M5-2K DOC 10107-0048 REV 1.02 Page 10
13.Specifications:
The M5-2K is for use in low voltage, Class 2 Circuits only.
Primary power: 18 Vac, ± 15 %, 2.8 A maximum
12 Vdc output 10.8 to 13.2 Vdc, 550 mA maximum
UPS battery (optional) 12 volt, 7 Ah rechargeable sealed lead-acid, 1 each supported
Battery’s approximate dimensions:
L 5.94 in (151 mm)
W 2.56 in (65 mm)
H 3.74 in (96 mm)
Relay outputs: 8 outputs, Form-C, 2 A @ 30 Vac/dc, resistive
Inputs: 10 unsupervised/supervised, standard EOL: 1K/1K ohm, 1 %, ¼ watt
Reader interface:
Reader power: 10.8 to 13.2 Vdc regulated, 300 mA maximum each reader port
DOx / External relay: Open collector, 40 mA sink maximum
Reader data inputs: TTL compatible inputs
Communication: 9600, 19200, 38400, or 115200 bps, asynchronous
Cable requirements:
Alarm inputs: 1 twisted pair per input, 22 AWG shielded. 30 ohms maximum loop
resistance
Outputs: As required for the load
Reader data: Use shielded cables
12 Vdc:
20 AWG, 500 feet maximum, reader powered by M5-2K board
18 AWG, 3000 feet maximum, reader powered locally
The above specifications are based on the typical 12 volt reader
drawing 125 mA. Reader power requirements vary between different
models.
Excessive voltage drop on long cable runs may require a larger cable gauge or powering the
reader from a local power source. Refer to the power specification for the reader being installed.
Mechanical:
Dimension: W 8.375 in (212.7 mm)
L 11.375 in (289.1 mm)
H 1.04 in (26.5 mm) without M5-IC
H 1.27 in (32.26 mm) with M5-IC
Weight (w/o connectors): 12.0 oz. (340.2 g) nominal without M5-IC
17.3 oz. (491.0 g) nominal with M5-IC
Environment:
Temperature: Storage -55 to +85 °C
Operating 0 to +50 °C
Humidity: 5 to 95 % RHNC
These specifications are subject to change without notice.
Trade names used in this document may be trademarks or registered trademarks of the manufacturers or
vendors of the respective products.