Garmin GNS 530W, Installation Manual

Page: 78 / 216

Page 4-24 500W Series Installation Manual
Rev. D 190-00357-02
4.11 Terrain Awareness Warning System (TAWS)
4.11.1 Audio
Pin Name Connector Pin I/O
AUDIO 2 HI P5001 52 Out
AUDIO 2 LO P5001 53 In
The TAWS audio output will be 100 mW across a 500 ohm load.
4.11.2 Annunciators
Pin Name Connector Pin I/O
TERRAIN NOT AVAILABLE ANNUNCIATE P5050 9 Out
TERRAIN WARNING ANNUNCIATE P5050 10 Out
TERRAIN CAUTION ANNUNCIATE P5050 11 Out
TAWS INHIBIT ANNUNCIATE P5050 12 Out
TERRAIN NOT AVAILABLE ANNUNCIATE sinks up to 500 mA when not active. All other
annunciator outputs sink 500 mA when active.
4.11.3 RS-232
Pin Name Connector Pin I/O
RS-232_OUT_5 P5050 60 Out
RS-232_IN_5 P5050 61 In
The RS-232 outputs confirm to EIA Standard RS-232C with an output voltage swing of at least ±5 V
when driving a standard RS-232 load.
4.11.4 Miscellaneous
Pin Name Connector Pin I/O
TAWS INHIBIT IN P5050 1 In
TAWS AUDIO INHIBIT IN P5050 2 In
TAWS AUDIO ACTIVE OUT P5050 15 Out
The TAWS INHIBIT IN and TAWS AUDIO INHIBIT IN are active low.
NOTE
TAWS functions can also be inhibited via the 500W Series user interface.
TAWS AUDIO INHIBIT IN is used to inhibit TAWS audio. This can be connected to inhibit output
lines of another unit whose audio is higher in priority.
TAWS AUDIO ACTIVE OUT allows the TAWS system to announce that it is playing audio. This can
be connected to the audio inhibit in lines of other units whose audio is of less priority than TAWS.
4.11.5 TAWS Configuration
Refer to Sections 5.3.21 and 5.3.22 for the TAWS configuration.
4.11.6 TAWS Calibration and Checkout
Refer to Section 5.4.7 and 5.5.6 for the TAWS checkout.
4.11.7 External TAWS Annunciator Interconnect (optional)
Refer to Figure H-24 for external TAWS annunciator interconnect. Refer to Section 2.5.1.3 to determine
if external TAWS annunciators are required.