Lock Wiring Configurations
15
Magnetic Lock
Components
This section describes the components and connections for magnetic lock
wiring.
Power Supply
The power for a magnetic lock must be filtered, regulated direct current
(DC) voltage. Alternating current (AC) does not work and half wave
rectified DC does not work reliably.
Most magnetic locks consume about 3 watts, which is about 125
milli-amps @ 24 VDC or 250 milli-amps @ 12 VDC.
18 AWG wire is generally recommended. If the wire runs exceed 100 feet,
use 16AWG wire instead.
The power supply to a magnetic lock must be isolated. Do not connect the
output of the power supply or the negative side of the lock to earth
ground. The connection from the minus side of the power supply must
go to Maglock pin 3.
Bypass Switch
Connect a normally closed (NC) emergency Bypass switch as shown.
Remove the J15 Bypass jumper for normal operation.
It will be necessary to connect the J15 Bypass jumper (closed) if you install
an electric strike on Relay 2.
Diode Protection
An optional inductive kickback suppression diode is available by
connecting the J13 Diode jumper (closed).
Some magnetic locks have the suppression circuitry built-in so in some
cases the J13 Diode jumper should be removed (open).
RM-4E Power Failure
When using the configuration shown, the magnetic lock remains locked
if the RM-4E loses connection to the apC or iSTAR because the normally
closed (NC) connection of Relay 2 is used. The magnetic lock also remains
locked if the RM-4E loses power.
