190-01134-11
GMA 350/350c/350H/350Hc Installation Manual
Rev. J
Page 4-11
4.7.1
Marker Beacon
Marker lamp outputs provide a variable dc voltage between 3V and 9V that drive incandescent lamps
(>56 Ohms). Lamp brightness is controlled by the photocell.
MIDDLE MARKER SENSE OUT has the same behavior as MIDDLE MARKER LAMP OUT, but with
half the voltage output into the rated minimum resistance of 4.7k Ohms.
MARKER HI SENS* IN is a discrete digital input that when grounded selects high sensitivity mode on the
marker receiver.
Table 4-17. Marker Beacon
Pin Name
Connector
Pin
I/O
MARKER ANTENNA IN HI
J3501
1
In
MARKER ANTENNA IN LO
J3501
2
--
INNER MARKER LAMP OUT
J3501
36
Out
OUTER MARKER LAMP OUT
J3501
37
Out
MIDDLE MARKER LAMP OUT
J3501
38
Out
MIDDLE MARKER SENSE OUT
J3501
39
Out
MARKER HI SENS* IN
J3502
13
In
