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500 SERIES INSTALLATION MANUAL Page 4-5
P/N 190-00181-02 Rev G
4.2 POWER, LIGHTING, AND ANTENNAS
4.2.1 Power, Lighting, and Antennas Function
The section covers the Power Input requirements, Lighting Bus input, and Antenna connections.
4.2.2 Power, Lighting, and Antennas Electrical Characteristics
Aircraft Power
Pin Name Connector Pin I/O
AIRCRAFT POWER 1 P5001 19 In
AIRCRAFT POWER 1 P5001 20 In
AIRCRAFT POWER 2* P5001 15 In
AIRCRAFT POWER 2* P5001 72 In
AIRCRAFT POWER P5002 11 In
AIRCRAFT POWER P5002 12 In
AIRCRAFT POWER P5006 44 In
AIRCRAFT GROUND P5001 77 --
AIRCRAFT GROUND P5001 78 --
AIRCRAFT GROUND P5002 21 --
AIRCRAFT GROUND P5002 22 --
AIRCRAFT GROUND P5006 41 --
* Optional alternate power, applies only to GNS 530 part numbers 011-00550-30, GNS 530A 011-00835-
10, and GPS 500 part number 011-00562-10.
CAUTION
To operate the GNS 530 P/N 011-00550-00 COM transceiver in a 14-volt aircraft, A 14 to 28 volt
converter such as a KGS Electronics models RB-126 or UC-14-28 or equivalent must be used. The
voltage converter should include exactly one short-circuit protection device on its output, such as a circuit
breaker. P5002-11 and P5002-12 supply power to the COM transmitter. The other power input pins
(P5001-19, P5001-20, and P5006-44) accept 11-33 Vdc. GNS 530 P/N 011-00550-10 accepts 11-33 Vdc
on all power inputs. Refer to Figure 4-4 on page 4-27.
A power connection on P5006-44 is only required if NAV SUPERFLAG or G/S SUPERFLAG is utilized.
The power inputs P5001-19 and P5001-20 provide power for all functions of the 500 Series unit except the
COM transmitter and the NAV & G/S SUPERFLAG outputs.
4.2.2.2 Lighting Bus
Pin Name Connector Pin I/O
LIGHTING BUS HI P5001 39 In
LIGHTING BUS LO P5001 40 In
The 500 Series unit can be configured to track 28 Vdc, 14 Vdc, 5 Vdc or 5 Vac lighting buses using these
inputs. Alternatively, the 500 Series unit can automatically adjust for ambient lighting conditions based on
the photocell. Refer to section 5.2.5.
4.2.2.3 Antennas
Pin Name Connector I/O
GPS ANTENNA P5003 In
COM ANTENNA P5004 I/O
VOR/LOC ANTENNA P5005 In
GLIDESLOPE ANTENNA P5007 In