User's Manual

5
MOV - Lock Suppression
A metal-oxide-varistor (MOV) is provided with each reader although it is used to protect the door
controller. It prevents high voltage spikes (back e.m.f.s) being returned from the lock unit to the
door controller. High voltage spikes can cause erratic operation and eventually severe damage to
the door controller if not controlled.
CAUTION:
Failure to install the MOV at the lock will result in early failure of the door controller. It
will also invalidate the warranty.
+
A
A
B
The MOV (A) should be installed across the power terminals of the lock (B).
Reader Operation
Normal Operation
The reader LED will normally be red when the door is locked. When a key is presented within
range of the reader, and the key is valid for that door at that time, the LED will go green and the
lock will release. The LED will stay green while the lock is released.
Tamper Protection
To ensure complete tamper protection the DR1 or DC terminal of the door controller should be
connected to the blue lead of the reader. If a door contact is being used then this should be
connected in series with DR1/DC and the blue lead. See the door controller installation manual for
full details of how to set up tamper protection and alarm monitoring.
Sounder Operation
Note:
ID devices will
not
be read while the sounder is operating.
The internal sounder will operate when the
yellow lead
is grounded. The sounder will continue until
the connection to ground is broken. A relay, such as provided on the 2100 and 2200 Series door
controllers, may be used to provide this operation under various conditions, e.g. Door Left Open.