Input and Output Connections
26
AC-425 Hardware Installation and User Manual
4.3
Outputs
Rosslare Security recommends the use of suppression diodes for all outputs
that activate an inductive load.
4.3.1
Door Lock
There are two types of door locking devices:
Fail open (fail secure)
Fail close (fail safe)
The following should be defined:
Scenario
Setting
Two readers per door
Door 1 – OUT 1
Door 2 – OUT 2
One reader per door
Door 1 – OUT 1
Door 2 – OUT 2
Door 3 – OUT 3
Door 4 – OUT 4
Door outputs when using MD-D04:
Scenario
Setting
Two readers per door
Door 1 – OUT 1
Door 2 – OUT 2
Door 3 – OUT 5
Door 4 – OUT 6
One reader per door
Door 1 – OUT 1
Door 2 – OUT 2
Door 3 – OUT 3
Door 4 – OUT 4
Door 5 – OUT 5
Door 6 – OUT 6
Door 7 – OUT 7
Door 8 – OUT 8
The output can sink current from any power supply (see Section
For UL installations, the installer must configure the system as fail-safe to
comply with NFPA (National Fire Protection Association) regulations.