User's Manual

A2SE67-UG-0011-1
CHAPTER 3 : Wiring the Terminal
16
3.4 Wiring locks
The terminal supports lock types rated 12-24V at 1.5A max current if using an external power
supply. It is recommended that the lock is powered by an external power supply as this
provides the most flexibility. However if required, internal power to a lock can be provided at
12V, 650mA max current.
3.4.1 Wiring a voltage provided lock (internal power)
Only12V locks can be wired to be powered internally by the terminal. When internal power is
utilised it is possible to connect locks in a fail safe or fail secure configuration.
Note
The maximum current that can be supplied is 1.5A using an external power supply or 650mA
from the internal supply.
Fail safe lock
The fail safe configuration means that in the event of a power loss to the terminal the lock will
open allowing free access. A lock that is constantly powered such as a maglock must be used.
Figure 11 Illustration of wiring for a fail safe lock
Fail secure lock
The fail secure configuration means that in the event of a power loss to the terminal the lock
will remain secure. A lock that requires power to open such as a shear lock must be used.
Figure 12 Illustration of wiring for a fail secure lock