Mercury Security © 2015
EP1502
DOC 10107-0031
REV 1.06
Page 5
Typical D1/D0 or Clock/Data Reader
Typical 2-wire RS-485 Device
* Inputs on supervised F/2F readers may be unsupervised or supervised (supervised shown).
Typical Unsupervised F/2F Reader
Typical Supervised F/2F Reader
Jumper D1 to LED on supervised F/2F readers
8. Input Circuit Wiring:
Typically, these inputs are used to monitor door position, request to exit, or alarm contacts. Input circuits
can be configured as unsupervised or supervised. When unsupervised, reporting consists of only the open
or closed states. When configured as supervised, the input circuit will report not only open and closed, but
also open circuit, shorted, grounded*, and foreign voltage*. A supervised input circuit requires two resistors
be added to the circuit to facilitate proper reporting. The standard supervised circuit requires 1k ohm, 1%
resistors and should be located as close to the sensor as possible. Custom end of line (EOL) resistances
may be configured via the host software.
* Grounded and foreign voltage states are not a requirement of UL 294 and therefore not verified by UL
The input circuit wiring configurations shown are supported but may not be typical:
1
TB8 or TB9
VO
LED
BZR
GND
D1/CLK/TR+
D0/DAT/TR-
VO
LED
BZR
D1/CLK/TR+
D0/DAT/TR-
GND
1
TB8 or TB9
VO
LED
BZR
D1/CLK/TR+
D0/DAT/TR-
GND
+12 Vdc
D1
GROUND
DO (GREEN LED)
F/2F Reader
1
TB8 or TB9
1
VO
LED
BZR
D1/CLK/TR+
D0/DAT/TR-
GND
+12 Vdc
D1
GROUND
DO (GREEN LED)
F/2F Reader
NORMALLY CLOSED CONTACT *
DOOR MONITOR SWITCH
REQUEST TO EXIT SWITCH
NORMALLY OPEN CONTACT *
1K,1%
1K,1%
1K,1%
1K,1%
TB8 or TB9
1K,1%
1K,1%
1K,1%
1K,1%
IN4 IN3
IN2
IN
1
Standard Supervised Circuit,
Normally Closed Contact
Standard Supervised Circuit,
Normally Open Contact
Unsupervised Circuit,
Normally Open Contact
Unsupervised Circuit,
Normally Closed Contact
Terminal Blocks
TB4 through TB7
