Echelon SmartServer 2.2 Hardware - Manual (Page 30)

+12V < 20mA Output
The SmartServer contains one +12VDC outlet that can provide up to 20mA. The +12V <20mA output
is available on screw terminals 19 and 20. Screw terminal 20 is the +12V <20mA connection. Screw
terminal 19 is the system ground.
You can connect the +12V <20mA output on the SmartServer to a set of dry contacts in order to power
an active device that is connected to the digital input screw terminals.
The following figure illustrates the location of the 12V <20mA output screw terminals on the
SmartServer.
The following table lists the enclosure markings for the 12V <20mA output screw terminals on the
SmartServer and their connection type.
Screw Terminal Enclosure Marking +12V < 20mA Connection
19 GND Ground
20 +12V < 20mA +12 Volt output.
+12V <20mA Output Digital Input Connectors
18 Assembling the SmartServer Hardware