Avionics Bus Tie Switch - Textron Cessna Grand Caravan Ex 208B Pilot's Operating Handbook And Faa Approved Airplane Flight Manual

CESSNA SECTION 7
MODEL 208B 867 SHP AIRPLANE AND SYSTEMS DESCRIPTION
GARMIN G1000
ELECTRICAL SYSTEM
(Continued)

AVIONICS BUS TIE SWITCH

The AVIONICS BUS TIE switch is a two-position guarded toggle-type
switch located on the left sidewall switch and circuit breaker panel. The
switch connects the AVN BUS 1 and AVN BUS 2 together in the event
of failure of either bus feeder circuit. Because power for each avionics
bus is supplied from a separate current limiter on the power distribution
bus, failure of a current limiter can cause failure of the affected bus.
Placing the AVIONICS BUS TIE switch to the ON position will restore
power to the failed bus. Operation without both bus feeder circuits may
require an avionics load reduction, depending on equipment installed.
208BPHCUS-00 7-93
U.S.