Mercury Security © 2014
M5-2K
DOC 10107-0048
REV 1.02
Page 5
7. Reader Wiring:
Each of the four reader ports support F/2F, and supervised F/2F type readers.
Reader cable requirements:
See specification section for more details.
F/2F and supervised F/2F readers require a shielded 4-conductor cable.
F/2F or Supervised F/2F Reader
M5-2K Reader Port Terminal Block Definitions:
TB3: Reader Port 1
TB4: Reader Port 2
TB5: Reader Port 3
TB6: Reader Port 4
TB3-1
+12 Vdc
TB4-1
+12 Vdc
TB5-1
+12 Vdc
TB6-1
+12 Vdc
TB3-2
GND
TB4-2
GND
TB5-2
GND
TB6-2
GND
TB3-3
DI
TB4-3
DI
TB5-3
DI
TB6-3
DI
TB3-4
DO1
TB4-4
DO2
TB5-4
DO3
TB6-4
DO4
8. Door Position Monitor and REX Input Wiring:
The door position monitor and REX switches can be wired in two different configurations.
1. Supervised F/2F readers: door contacts and REX inputs are to be wired through the reader
2. F/2F readers: door contacts and REX inputs must be wired to the M5-2K inputs, see Section 9
Typically, the door position monitor switch uses the Normally Close (NC) contact and the REX uses the
Normally Open (NO) contact. Some supervised F/2F readers support different switch configurations
which are defined in the host and downloaded to the M5-2K.
Supervised Inputs - Wired to Supervised F/2F Reader, 4-State Supervision:
Supervised inputs for the door position monitor and REX switches are wired directly to the supervised
F/2F reader configured for 4-State Supervision
. See reader’s documentation for the proper connection
terminals. Typically, the EOL resistors are two 1K ohm resistors as shown below. The EOL resistors
should be installed as close to the switch as possible.
DI
DOx
3
DI
4
LED
+12 Vdc
GROUND
1
VO
2
GND
1
F/2F Reader
4
