Access control applications
3.28 EST3 Installation and Service Manual
Maglock peripherals
Description of the application
Maglocks require maglock peripherals due to NFPA codes. In
general, these devices are intended to ensure that an egress door
secured with a maglock can always be opened in an emergency.
Figure 3-9 shows the CRC using a maglock and required
peripherals.
Maglock application requires a passive infrared motion detector
(PIR) to be mounted above the door. Also required is a request to
exit (REX) switch to be mounted within five feet of the door and
40 to 48 inches above the ground. The PIR is connected on the
input circuit of the CRC. The REX is connected directly to the
maglock so that when activated it unlocks the door
independently of the CRC.
The CRC is designed so that on detection of a fault on the input
circuit of the PIR, the door will unlock. The PIR detects an
approaching body and unlocks the door. Similarly, the REX
switch unlocks the door when it is pressed. The REX switch
must unlock the door for a minimum of 30 seconds.
CRC
Passive
infrared
detector
Request to
exit switch
Maglock
Power supply
Other factors
Hardware configuration
SDU programming
ACDB/KDC operation
X
X
Figure 3-9: Maglock and peripherals
To Next Page
Loading...