Essex Electronics, Inc. | 805.684.7601 | 800.KEY-LESS | fax 805.684.0232 | keyless.com
10
Connecting the Locking Device
Connect the electric locking device to Terminal Strip “B” as outlined
in the Typical Wiring Diagram (Appendix B – page 31). Any 3
conductor, 18 gauge wire can be used to connect the Control
Module to the Locking Device. Included with each system are
two MOV’s (metal oxide varistor). The function of the MOV is to
absorb any inductive kickback from the locking device, protecting
the circuit board. The MOV’s have been installed under the relay
contact screws and can be left there for normal “FAIL SECURE” lock
operation. For “FAIL SAFE” locks, move one leg from the “N.O.”
screw to the “N.C.” screw (Appendix B – page 31). If possible, install
the MOV closer to the electric lock. If switching voltages higher than
36V, remove the MOV. To provide proper grounding, connect the
3rd wire from the body of the locking device to the “EARTH” screw
on Terminal “A.”
Battery Backup
Although battery backup is NOT required for User Code retention,
you may wish to connect to a UPS (Uninterruptible Power Supply) to
provide operation during a power interruption.
