User's Manual

Table Of Contents
TSR-UL-0061-1.3
CHAPTER 3 : Wiring the Terminal
14
Important
RS232 and RS485 connections have not been evaluated by UL and are not for connection in UL Installations.
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, 1.3A max current combined across both relays.
Important
The output state switch must be configured for the correct type of supply, as described in this section.
3.4.1 Wiring a voltage provided lock (internal power)
Only 12V 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 1.3A
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