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
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