Operating Instructions and Installation Instructions

ComNav Vector G2 & G2B Installation & Operation Appendices
Document PN 29010078 V2.0 - 90 -
DRAFT #3 – 29 May 2009
• The significant differences in features & operating specifications between the three
generations of ComNav Vector G2 & G2B GPS Compasses are listed below.
Generation
Feature First Second Third
Operating Voltage 8 – 40 VDC 10 – 36 VDC 11 – 36 VDC
Power Consumption < 4.5 W < 5 W < 4.5 W
Operating Temperature -30° C to +70° C -32° C to +74° C -32° C to +74° C
Max Update Rate, Position 5 Hz 10 Hz 20 Hz
Max Update Rate, Heading 10 Hz 10 Hz 20 Hz
Max Rate of Turn 25 °/s 90 °/s 90 °/s
GPS Horizontal Accuracy
(autonomous, no SA)
5 m, 95% 2.5 m RMS 2.5 m RMS
GPS Horizontal Accuracy
(DGPS in use)
1 m, 95% 1 m RMS 1 m RMS
Compass Safe Distance not specified 125 cm
Standard: 1.25 m
Steering: 0.80 m
Compass Safe Distance
(reduced)
not specified not specified
Standard: 0.75 m
Steering: 0.50 m
Beacon Receiver (G2B) SBX-3 SBX-4 SBX-4
Beacon Receiver Standard — IEC 61108-4 IEC 61108-4
RS-232C Serial Ports
2 full-duplex,
1 half-duplex
2 full-duplex 2 full-duplex
Baud Rates
(RS-232 & RS-422 Outputs)
4800, 9600, 19200
4800, 96001,
19200
1, 384001
4800, 9600
1,
19200
1, 384001
Data I/O Protocol
NMEA 0183,
SLX Binary
NMEA 0183,
Crescent Binary
NMEA 0183,
Crescent Binary
Talker ID for NMEA 0183
Heading Sentences
HE/HC
HE/HC, GP
(default: HE/HC)
HE/HC, GP
(default: GP)
Invalid Heading Alarm Output 2 No Yes Yes
1 PPS Output 2 Yes No No
Magnetic Aiding
(Magnetometer Sensor)
Yes No No
Table 24 – Differences between Vector G2 Generations
1 On the second & third-generation G2/G2B, only 4800 Baud is guaranteed to
work with the ComNav Commander P2, Admiral P3 & 5001 autopilots, and on
other ComNav autopilots which use the Sine-Cosine Convertor. The other
Baud rates may or may not work on other NMEA 0183 compliant equipment.
2 Whether the heading/power Alarm output, or the 1 PPS output, are available
on a given model depends on the cable used (see the Notes below Table 26
on page
91, and the Note at the bottom of page 92).
The first & second generation G2 & G2B also had different factory-default output sentences
enabled than does the third generation (see pages 46 & 47):
• Port A:
–
GPGLL, GPVTG & GPZDA at 1 Hz
– HCHDM, HEHDT & HEROT at 5 Hz
• Port B: HCHDM, HEHDT & HEROT at 5 Hz
The first-generation G2 & G2B did not support HEHDG, and the update rates for GPGSV and
some other sentences could only be set to 0, or to 1 Hz.
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