Mercury Security © 2015
EP4502
DOC 10107-0039
REV 1.02
Page 2
3. EP4502 Wiring and Setup:
CONNECTION
CONNECTION
TB8 Reader 1 GND: Ground
TB1 Cabinet
GND
DAT/D0: Data/Data 0/TR-
Tamper Input TMP
CLK/D1: Clock/Data 1/TR+
Power Fault GND
BZR: Reader Buzzer
Input
FLT
LED: Reader LED
Power Input
GND
VO: Reader Power
VIN: 12 to 24 Vdc
TB9 Reader 2 GND: Ground
TB2 SIO Port 1
TR+ (B) (2-wire RS-485)
DAT/D0: Data/Data 0/TR- (A)
TR- (A) (2-wire RS-485)
CLK/D1: Clock/Data 1/TR+ (B)
GND (2-wire RS-485)
BZR: Reader Buzzer
TB3 SIO Port 2
TR+ (B) (2-wire RS-485)
LED: Reader LED
TR- (A) (2-wire RS-485)
VO: Reader Power
GND (2-wire RS-485)
TB10 Out 1
NO: Normally Open Contact
TB4 Input 1
IN1
C: Common
IN1
NC: Normally Closed Contact
Input 2
IN2
Out 2
NO: Normally Open Contact
IN2
C: Common
TB5 Input 3
IN3
NC: Normally Closed Contact
IN3
TB11 Out 3
NO: Normally Open Contact
Input 4
IN4
C: Common
IN4
NC: Normally Closed Contact
TB6 Input 5
IN5
Out 4
NO: Normally Open Contact
IN5
C: Common
Input 6
IN6
NC: Normally Closed Contact
IN6
TB7 Input 7
IN7
IN7
Input 8
IN8
IN8
Jumpers:
The EP4502 processor hardware interface is configured using jumpers to setup the port interface and end
of line termination.
JUMPERS
SET AT
DESCRIPTION
J1
N/A
Factory Use Only
J2
N/A
10 Base-T/100Base-Tx Ethernet Connection (Port 0)
J5
OFF
Port 2 RS-485 EOL Terminator is Off
ON
Port 2 RS-485 EOL Terminator is On
J7
Reader Power Select. See Note 1
12V
12 Vdc at Reader Ports
PASS
VIN "Pass Through" to Reader Ports
J8
N/A
Processor connection to Base Board
J9
OFF
Port 1 RS-485 EOL Terminator is Off
ON
Port 1 RS-485 EOL Terminator is On
J10
N/A
MicroSD
– Not supported
J11
N/A
Factory Use Only
J12
N/A
USB
– Not supported
JP3
On
On processor board. Factory Use Only
– Must be installed
Note 1: The input power (VIN) must be 20 Vdc minimum if the 12 Vdc selection is to be used.
