Serial Interface Specifications
Apollo GX50/60/65 Installation Manual
59
C
OMM
D
ATA
O
UTPUT
The format of the comm data output is as follows. This data output is compatible with the
SL40 for sending frequency data to the comm.
Baud rate: .......................................... 9600
Data bits: ........................................... 8
Stop bits: ........................................... 1
Parity: ............................................... none
Output rate: ....................................... approx. 1 second
Message length: ................................ variable, approx. 83 to 484 characters
The comm data is output using the following format.
$PMRRC<msg_id><msg_data><chksum><cr>
The checksum is computed by an 8 bit addition of the msg_id and msg_data characters,
ignoring carry if any. The resulting 8 bit checksum is converted to two ASCII characters by
taking the upper and lower nibbles, adding 30h to each, and placing the most significant
character first in the data message.
Airport Ident Output
This message is used to output the selected airport ident.
Message Format
$PMRRC04tiiii<chksum><cr>
04 ....... message id
Example Moving Map Data Output (Extended Data Enabled)
AN 34 1570
34
°
15.70’ latitude
BW 118 4390
118
°
43.90’ longitude
C306
306
°
track angle
D210
210 knots
E02682
268.2nm to waypoint
GR0006
0.6nm right of course
I3059
305.9
°
desired track
KSFO
SFO waypoint ident
L3058
305.8
°
bearing to waypoint
QE140
14.0
°
east magnetic variation
T---------
No alarms, data not flagged
<binary data>
From Table 7
a—O--F
Approach Enabled Off, Active Off, Message On, Parallel Track
Off, Hold Off, and From/To is FROM
cvR001
CDI Valid, Needle Right, Deflection 001
°
vC000
VDI Valid, Needle Centered, Deflection is 000
°
<binary data>
From Table 9
tda
Flight Plan Waypoint Type data, direct-to, airport type
Figure 19 Moving Map Data Output (Extended Data Enabled)
Summary of Contents for GX50
Page 4: ...NOTES ...
Page 8: ...Table of Contents iv Apollo GX50 60 65 Installation Manual NOTES ...
Page 28: ...Installation 20 Apollo GX50 60 65 Installation Manual Figure 12 RS 232 Serial Connections ...
Page 29: ...Installation Apollo GX50 60 65 Installation Manual 21 Figure 13 GX60 65 Comm Wiring Diagram ...
Page 46: ...Specifications 38 Apollo GX50 60 65 Installation Manual NOTES ...
Page 48: ...Limitations 40 Apollo GX50 60 65 Installation Manual NOTES ...
Page 52: ...Periodic Maintenance 44 Apollo GX50 60 65 Installation Manual NOTES ...
Page 54: ...Environmental Qualifications 46 Apollo GX50 60 65 Installation Manual NOTES ...
Page 73: ......
Page 74: ......