G1000 NXi System Maintenance Manual
Page 23
King Air 300 Series
Revision 1
190-00716-N1
Mechanical (Analog) Standby Indicators
Standby Airspeed Indicator
An optional Standby Airspeed indicator (part numbers listed on General Arrangement drawing)
is installed between PFD 1 and the MFD. The standby airspeed indicator does not require
electrical power for normal operation except for internal instrument lighting, which is powered
from No. 3 Triple Fed Bus and the emergency standby battery. This unit is connected to the
right-side pitot/static system.
Standby Altimeter
An optional standby altimeter (part numbers listed on General Arrangement drawing) is installed
between PFD 1 and the MFD. This unit incorporates a vibrator to ensure accurate display
altitude information. The vibrator is powered by No. 3 Triple Fed Bus and the emergency
standby battery. Internal lighting of this unit is powered from Left Gen Bus and the emergency
standby battery. This unit is connected to the right-side static system.
Standby Attitude Indicator
The optional Mid-Continent Electric Attitude Indicator (part number listed on General
Arrangement drawing) is used as the standby attitude indicator. It is powered by No. 3 Triple
Fed Bus and the emergency standby battery. Gyro power and internal lighting of this unit is
powered from Left Gen Bus and the emergency standby battery.
L-3 PS-835 (C or D Model) Emergency Standby Battery
In the event of loss of all normal electrical power, the battery is designed to provide 24 Vdc
(nominal) emergency power source for the following items:
•
standby attitude indicator (operation and internal lighting)
•
standby altimeter (vibrator and internal lighting)
•
standby airspeed indicator (lighting only)
•
pilot side glareshield lighting
•
magnetic compass
The aircraft power buss provides a trickle charge to the PS-835 under normal conditions. This
battery is installed in the nose avionics bay. It is controlled using the standby battery switch
indicator on the instrument panel.
G1000 Optional Interfaces
Optional equipment interfaces include lightning detection, traffic systems, radar altimeter, ADF
systems and DME systems. The G1000 also provides a general purpose ARINC bus for use
with third party entertainment and cabin equipment. Refer to wiring diagram listed in Table 1-1,
for specific interface information.
Summary of Contents for G1000 NXi
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