![Sony SNC-WL862 Installation Manual Download Page 11](http://html.mh-extra.com/html/sony/snc-wl862/snc-wl862_installation-manual_418230011.webp)
11
Connecting to the I/O combo cable
Dry contact with external DC power source to supply a relay. Dry contact is the safest connection to protect
devices.
Dry contact
Wet contact
External DC power
Switch
Photo
Coupler
External AC Power
with Protected Earth
External Device
DC
0V
NC
Relay
DC 0V
NO
External DC power
Switch
External AC Power
with Protected Earth
External Device
NO
NC
Relay
DC 0V