Garmin GNS 530AW Installation Manual - page 78
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.