Specifications

Information Manual 7-75
Cirrus Design Section 7
SR20 Airplane Description
distribution buses. Loads on the Non-Essential Equipment Bus are
shed by pulling the individual circuit breakers.
Ground Service Receptacle
A ground service receptacle is located just aft of the cowl on the left
side of the airplane. This receptacle is installed to permit the use of an
external power source for cold weather starting and maintenance
procedures requiring reliable power for an extended period. The
external power source must be regulated to 28 VDC. The external
power control contactor is wired through the BAT 1 MASTER switch so
that the BAT 1 switch must be ’on’ to apply external power.
Refer to Section 8, Ground Handling, Servicing, and Maintenance, for
use of external power and special precautions to be followed.
Convenience Outlet
A 12-volt convenience outlet is installed in the center console. The
receptacle accepts a standard cigarette-lighter plug. The outlet may be
used to power portable entertainment equipment such as CD players,
cassette players, and portable radios. 28 VDC power for the
convenience outlet is supplied through the 3-amp 12VDC OUTLET
circuit breaker on the Non-Essential Bus.
March 2010