Paxton Switch2 User Manual

Locks
12v
0v
N.C.
N.O.
Com
Bell
PowerDoor relay
Alarm
Diode**
Fail Closed
Link *
12v
0v
N.C.
N.O.
Com
Bell
PowerDoor relay
Alarm
Diode**
Fail Open
Link *
The diagrams above show the two main types of 12V dc electric lock. Other electrical
devices can be switched using the voltage free relay contacts.
* The 0v link must be connected for the lock to work
** The diode is supplied in the fitting kit and must be fitted with correct orientation as
show in the diagram. If an ac lock is used then a transient absorber must be fitted
instead
Wiring to a Fire Alarm or Break Glass unit
12v
0v
N.C.
N.O.
Com
Bell
PowerDoor relay
Alarm
Output from
fire alarm
12-24V
0V
NC NOC
Fail Open
release
Fire Alarm
relay
Link *
Diode**
12v
0v
N.C.
N.O.
Com
Bell
PowerDoor relay
Alarm
Fail Open
release
Break Glass
Unit
Link *
Diode**
All Fire systems must be Fail-Safe. Fail secure locks are not permitted. The exit button
terminal must NOT used as the Switch2 may not be functional during the emergency.
Fire Alarm Relay
Under normal conditions, the fire alarm system will provide a constant voltage to the fire
alarm relay which will transfer and maintain the 12v supply to the lock. Should the
alarm be triggered or the cable disconnected or burnt, the relay will drop cutting the 12v
supply and the fail open release will always unlock.
Break Glass
The break glass unit provides a method of removing the 12v supply from the fail-open
lock. This ensures a reliable method of escape in an emergency.
These two methods of lock release are often combined in the same circuit by routing the
12v lock feed thorough both the relay contacts and the break glass in turn.
Chapter 3 Wiring 14

Paxton Switch2 Specifications

General

Type	Proximity access card
Material	Plastic
Product color	Black, Green
Wireless connection	Yes
Operating temperature (T-T)	0 - 55 °C

Weight and Dimensions

Depth	49 mm
Width	28 mm
Height	11 mm