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MR52 READER INTERFACE
Installation and Specifications:
1. General:
The MR52 reader interface provides a solution to the OEM system integrator for interfacing to
TTL/Wiegand/RS-485 type readers and door hardware. The MR52 can accept data from reader with
clock/data, Wiegand or RS-485 signaling, provide a tri-stated LED control and buzzer control. Six form-C
relay outputs may be used for strike control or alarm signaling. Eight supervised inputs are provided for
monitoring the door contact, exit push button and alarm contacts.
accomplished via a 2-wire RS-485 interface.
The MR52 requires 12 to 24Vdc for power. See the following figure for component location.
.25 [6.35]
INPUTS
SIO COMMUNICATION
PORT, RS-485
POWER IN
12-24Vdc
.50 [12.70]
Mercury Security Corporation © 2011
2355 MIRA MAR AVE. LONG BEACH, CA 90815-1755, (562)986-9105 FAX (562) 986-9205
6.00 [152.40]
5.50 [139.70]
A
B
1
2
3
4
5
TB1
TB2
TB3
TB4
TB5
TMP
GND
PFL
J14
GND
J11
K1
12V
PT
J2
J15
2 W 4W
J3
J5, J6
RS-485
TERMINATOR
TB6
TR+
TR-
R+
R-
GND
TB7
VIN
GND
J12
MR52
DOC 10107-0015
This device complies with part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1) This
device may not cause harmful interference, and (2) this
device must accept any interference received, including
interference that may cause undesired operation.
Communication to the MR52 is
6
7
8
TMP
PFL R1 R2
TB9
J9
U1
J13
TB10
K2
K3
K4
K5
K6
TB11
TB12
REV 2.02
www.mercury-security.com
TB8
READER INTERFACE
DIP SWITCHES
S1
RELAY STATUS LEDs
OUTPUTS
Ø.156 [Ø4.0]
8 PLACES
Page 1
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Related Manuals for Mercury Security MR52
Summary of Contents for Mercury Security MR52
- Page 1 Installation and Specifications: 1. General: The MR52 reader interface provides a solution to the OEM system integrator for interfacing to TTL/Wiegand/RS-485 type readers and door hardware. The MR52 can accept data from reader with clock/data, Wiegand or RS-485 signaling, provide a tri-stated LED control and buzzer control. Six form-C relay outputs may be used for strike control or alarm signaling.
- Page 2 The MR52 communicates to a Mercury Security intelligent controller (EP2500 for example) via a 2-wire RS-485 interface. The MR52 allows for multi-drop communication on a bus of up to 4,000 feet (1,200 m). Use twisted pair(s) (minimum 24AWG) with shield for communication. See specifications section.
- Page 3 Factory use only Factory use only Factory use only Factory use only NOTE: The input power (VIN) must be 20Vdc minimum if the 12Vdc selection is to be used. Mercury Security Corporation © 2011 MR52 DOC 10107-0015 REV 2.02 Page 3...
- Page 4 See note 2 below. Note 1: Firmware revisions prior to 1.38.1, this setting is 2,400 BPS. Note 2: Firmware revisions prior to 1.38.1, SW8 is not defined. Set to the OFF position. Mercury Security Corporation © 2011 MR52 DOC 10107-0015 REV 2.02...
- Page 5 K1 through K6 LEDs: Illuminates when output relay RLY 1 (K1) through RLY 6 (K6) is energized. Every three seconds, LEDs A through R2 are pulsed to their opposite state for 0.1 sec. Mercury Security Corporation © 2011 MR52 DOC 10107-0015 REV 2.02...
- Page 6 6" (152mm)W x 8" (203mm)L x 1" (25mm)H Weight: 11 oz. (312g) nominal Environment: Temperature: -55°C to +85°C, storage 0°C to +70°C, operating Humidity: 0% to 95% RHNC Mercury Security Corporation © 2011 MR52 DOC 10107-0015 REV 2.02 Page 6...
- Page 7 There are no expressed warranties other than set forth herein. Mercury Security Corporation does not make, nor intends, nor does it authorize any agent or representative to make any other warranties, or implied warranties, and expressly excludes and disclaims all implied warranties of merchantability or fitness for a particular purpose.
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