www.mercury-security.com
2355 MIRA MAR AVE. LONG BEACH, CA 90815-1755, (562)986-9105 FAX (562) 986-9205
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.
12 TO 24Vdc
GND
VIN
+
-
TB11
MR16in PROCESSOR
2.00 [50.80] 3.00 [76.20] 2.00 [50.80]
8.00 [203.20]
0.25 [6.35] 5.50 [139.70]
6.00 [152.40]
OUTPUTS
TB11
VIN
GND
TR-
R+
R-
GND
TR+
TB10
4W
2W
RS-485
TB1
TB2
TB3
TB4
TB9
I1
I1
I2
I2
I3
I3
I4
I4
I5
I5
I6
I6
I7
I7
I8
I8
CT
GND
BA
GND
2W
4W
J3
J6
J5
12345678
S1
NC
C
NO
NC
C
NO
OUT 1
OUT 2
TB12
K1K2
J8
TB5
I9
I9
I10
I10
TB6
I11
I11
I12
I12
TB7
I13
I13
I14
I14
TB8
I15
I15
I16
I16
A
B
K1
K2
J9
J7
J4
MR-16IN
J1
J2
RS-485
TERM
U1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CT
BA
INPUT STATUS LEDs
INPUTS
DIP SWITCHES
STATUS LEDs
Ø0.16 [Ø3.96]
8 PLACES
INPUTS
SIO COMMUNICATION
PORT, RS-485
POWER IN
12-24Vdc
Installation and Specifications:
1. General:
The MR16in processor provides a solution to the OEM system integrator for sensor monitoring and output
control. The MR16in has 16 supervised inputs and 2 form-C contact relays for load switching. In
addition, 2 digital inputs are used for cabinet tamper and power fault status monitoring. The processor
requires 12 to 24Vdc for power.
2. Supplying Power to the MR16in:
The MR16in accepts 12 to 24Vdc for power. Locate power source as
close to the unit as possible. Connect power with minimum of 18AWG
wires.
Observe POLARITY on VIN!
Mercury Security Corporation © 2009 MR16in DOC 10107-0010 REV 2.01 Page 1
TR+
TR-
R+
R-
GND
2W
4W
2-WIRE
TB10
(ONLY 2-WIRE RS-485 IS SUPPORTED)
NC
NO
NO
NC
1K,1%
1K,1%
1K,1%
1K,1%
TB6 TB5
I9
I9
I10
I10
I11
I11
I12
I12
3. Communication Wiring:
The MR16in communicates to an intelligent controller (EP2500 for example) via a 2-wire RS-485
interface. The interface allows multi-drop communication on a single bus of up to 4,000 feet (1,200 m).
Shielded cable of 24AWG with characteristic impedance of 120 ohm is specified for the RS-485 interface.
The last devices on each end of the cable should have the terminator installed (set jumper J1 on).
Install the following jumpers for the RS-485 interface according to the selected configuration:
4. Alarm Inputs Wiring:
Inputs 1 to 16 may be configured to use or not use End Of Line (EOL) resistors and to use normally open
or normally closed contacts. Input CT and input BA are used for monitoring cabinet tamper and power
failure, respectively. These two inputs are for contact closure monitoring only, and do not use EOL
resistor(s).
Input configuration is set via host software.
Mercury Security Corporation © 2009 MR16in DOC 10107-0010 REV 2.01 Page 2
DIODE SELECTION:
DIODE CURRENT RATING > 1 X STRIKE CURRENT
DIODE BREAK DOWN VOLTAGE: 4X STRIKE VOLTAGE
FOR 12Vdc or 24Vdc STRIKE, DIODE 1N4002 (100V /1A) TYPICAL
MOV SELECTION:
CLAMP VOLTAGE > 1.5 X Vac RMS
FOR 24Vac STRIKE, PANASONIC ERZ-C07DK470 TYPICAL
S8
S7
S6
S5
S4
S3
S2
S1
SELECTION
OFF
OFF
OFF
OFF
OFF
Address 0
OFF
OFF
OFF
OFF
ON
Address 1
OFF
OFF
OFF
ON
OFF
Address 2
OFF
OFF
OFF
ON
ON
Address 3
OFF
OFF
ON
OFF
OFF
Address 4
OFF
OFF
ON
OFF
ON
Address 5
OFF
OFF
ON
ON
OFF
Address 6
OFF
OFF
ON
ON
ON
Address 7
OFF
ON
OFF
OFF
OFF
Address 8
OFF
ON
OFF
OFF
ON
Address 9
OFF
ON
OFF
ON
OFF
Address 10
OFF
ON
OFF
ON
ON
Address 11
OFF
ON
ON
OFF
OFF
Address 12
OFF
ON
ON
OFF
ON
Address 13
OFF
ON
ON
ON
OFF
Address 14
OFF
ON
ON
ON
ON
Address 15
ON
OFF
OFF
OFF
OFF
Address 16
ON
OFF
OFF
OFF
ON
Address 17
ON
OFF
OFF
ON
OFF
Address 18
ON
OFF
OFF
ON
ON
Address 19
NC
C
NO
NC
C
NO
NC
C
NO
NC
C
NO
5. Relay Outputs:
Two form-C contact relays are provided for controlling door strikes or other devices. Load switching can
cause abnormal contact wear and premature contact failure. Switching of inductive loads (strike) also
causes EMI (electromagnetic interference) which may interfere with normal operation of other equipment.
To minimize premature contact failure and to increase system reliability, contact protection circuit must be
used. The following two circuits are recommended. Locate the protection circuit as close to the load as
possible (within 12 inches [30cm]), as the effectiveness of the circuit will decrease if it is located further
away.
Use sufficiently large gauge of wires for the load current as to avoid volt
6. DIP Switch Jumper and Usage:
Switches 1 to 5 select the device address. Switch 6 and 7 select the communication baud rate. Switch 8
enables encrypted communication. All other configuration settings are set via host software.
Continued on next page.
Mercury Security Corporation © 2009 MR16in DOC 10107-0010 REV 2.01 Page 3
S8
S7
S6
S5
S4
S3
S2
S1
SELECTION
ON
OFF
ON
OFF
OFF
Address 20
ON
OFF
ON
OFF
ON
Address 21
ON
OFF
ON
ON
OFF
Address 22
ON
OFF
ON
ON
ON
Address 23
ON
ON
OFF
OFF
OFF
Address 24
ON
ON
OFF
OFF
ON
Address 25
ON
ON
OFF
ON
OFF
Address 26
ON
ON
OFF
ON
ON
Address 27
ON
ON
ON
OFF
OFF
Address 28
ON
ON
ON
OFF
ON
Address 29
ON
ON
ON
ON
OFF
Address 30
ON
ON
ON
ON
ON
Address 31
OFF
OFF 115,200 BPS, See note 1 below.
OFF
ON
9,600 BPS
ON
OFF
19,200 BPS
ON
ON
38,400 BPS
OFF
Encrypted communication not required
See note 2 below.
ON
Encrypted communication required
See note 2 below.
JUMPER
DESCRIPTION
J1
RS-485 termination, install in first and last units only
J2
Factory use only
J3
2-wire/4-wire select, install in 2W position only
J4
Factory use only
J5
Factory use only
J6
Factory use only
J7
Factory use only
J8
Factory use only
J9
Factory use only
Continued:
Note 1: Firmware revisions prior to 1.30.1, this setting is 2,400 BPS.
Note 2: Firmware revisions prior to 1.30.1, SW8 is not defined. Set to the OFF position.
Jumpers:
Mercury Security Corporation © 2009 MR16in DOC 10107-0010 REV 2.01 Page 4
7. Status LEDs:
Power-up: All LED’s OFF
Initialization: Once power is applied, initialization of the module begins
When initialization is completed, LEDs 1 through 16, CT, BA, A, and B are briefly sequenced ON then
OFF.
Run time: After the above sequence, the LEDs have the following meanings:
A LED: Heartbeat and On-Line Status:
Off-line: 1 sec rate, 20% ON
On-line:
Non-encrypted communication: 1 sec rate, 80% ON
Encrypted communication:
.1 sec ON, .1 sec OFF, .1 sec ON, .1 sec OFF, .1 sec ON, .1 sec OFF, .1 sec ON, .3 sec OFF
A LED Error Indication:
Waiting for application firmware to be downloaded: .1 sec ON, .1 sec OFF.
B LED: SIO Communication Port Status:
Indicates communication activity on the SIO communication port
1 LED: Input Status: 1
2 LED: Input Status: 2
3 LED: Input Status: 3
4 LED: Input Status: 4
5 LED: Input Status: 5
6 LED: Input Status: 6
7 LED: Input Status: 7
8 LED: Input Status: 8
9 LED: Input Status: 9
10 LED: Input Status: 10
11 LED: Input Status: 11
12 LED: Input Status: 12
13 LED: Input Status: 13
14 LED: Input Status: 14
15 LED: Input Status: 15
16 LED: Input Status: 16
CT: Cabinet Tamper
BA: Power Fault
Input in the inactive state: OFF (briefly flashes ON every 3 seconds)
Input in the active state: ON (briefly flashes OFF every 3 seconds)
Input in a fault state: Rapid Flash
LED K1 and K2: Illuminates when output relay RLY 1 (K1) or RLY 2 (K2) is energized.
Mercury Security Corporation © 2009 MR16in DOC 10107-0010 REV 2.01 Page 5
8. Specifications:
The processor is for use in low voltage, class 2 circuit only.
Primary power: 12 to 24Vdc ±10%, 350mA maximum
12Vdc @ 300mA nominal
24Vdc @ 220mA nominal
Outputs: 2 outputs, Form-C, 5A @ 28Vdc, resistive
Inputs: 16 unsupervised/supervised, standard EOL: 1k/1k ohm, 1%, 1/4 watt
2 unsupervised, dedicated for cabinet tamper and UPS fault monitoring
Communication: RS-485, 2-wire. 9600, 19200, 38400, or 115200 bps
Cable requirements:
Power: 18 AWG, 1 twisted pair
RS-485: 24AWG, 120 ohm impedance, twisted pair with shield, 4,000' (1,200m)
maximum
Alarm inputs: 1 twisted pair, 30 ohms maximum
Outputs: As required for the load
Mechanical:
Dimension: 6" (152mm)W x 8" (203mm)L x 1" (25.4mm)H
Weight: 9 oz. (250 g) nominal
Environmental:
Temperature: -55°C to +85°C, storage
0°C to +70°C, operating
Humidity: 0% to 95% RHNC
Warranty:
Mercury Security Corporation warrants the product is free from defects in material and workmanship under normal
use and service with proper maintenance for one year from the date of factory shipment. Mercury Security
Corporation assumes no responsibility for products damaged by improper handling or installation. This warranty is
limited to the repair or replacement of the defective unit.
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.
Returned units are repaired or replaced from a stock of reconditioned units. Returns must be accompanied by a
return authorization number (RMA) obtained from customer service, and prepaid postage and insurance.
Liability:
The Interface should only be used to control exits from areas where an alternative method for exit is available. This
product is not intended for, nor is rated for operation in life-critical control applications. Mercury Security Corporation
is not liable under any circumstances for loss or damage caused by or partially caused by the misapplication or
malfunction of the product. Mercury Security Corporation's liability does not extend beyond the purchase price of the
product.
Mercury Security Corporation © 2009 MR16in DOC 10107-0010 REV 2.01 Page 6
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