II Morrow Inc. 920 - Manual (Page 82)

To connect the unit to an external power
source, plug the included power cable into the
connector labeled “Power.” Connect the cable
to a 6VDC to 32VDC power source. Note that
the unit will use external power if the voltage
from the external source is higher than the
internal battery voltage.
Back of Case
External Power
Connection
Serial Data
Port
External GPS
Antenna
6VDC to
32VDC
Ground
Electrical Connector
D
41