NO relay
Normally open contact in the relay
changeover contact. This contact is closed
against Relay COM when not connected
5.2 SmartRelay Advanced (SREL.ADV)
External inputs and outputs
Power supply
unit
Relay
SREL.BAT battery
External antenna
SREL.AV
NAME
SYMBOL DESCRIPTION
Power supply unit +
Either positive terminal when connected to a
direct current (5 to 24 V DC) or one of the
two alternative current connections (12
V AC)
SREL1+2
(Manual)
5. Connections
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