User's Manual

October 15 2009 – Installation Guide Draft – Edit Purposes Only Page 59
Installation Guide –April 2010
2010
The power supply for the external relay must be chosen to match the operating voltage
and current of the external relay coil, but its voltage must not exceed the V-Station 4G
or V-Flex 4G device's internal relay maximum voltage rating of 250 volts.
The external relay should be connected. Note that snubber diodes (1 N2007 or
equivalent) should be connected across the external relay coil and the deadbolt/door
strike.
Figure 4-14 Connections for External Relay Operation