Operating Instructions and Installation Instructions

ComNav Vector G2 & G2B Installation & Operation Appendices

Document PN 29010078 V2.0 - 70 -

DRAFT #3 – 29 May 2009

System Interface

Parameter Specification

Ports

• RS-232 Serial:

o 2 full-duplex

• RS-422 Serial:

o 2 half-duplex, output only

o same data as output on RS-232

• all ports optically isolated

Baud Rate 4800 (default), 9600, 19200 and 38400

Data Output Protocol NMEA 0183, proprietary ASCII (Crescent)

& proprietary binary (see Table 6 & Table 7)

Data Input Protocol NMEA-like (see Table 8 - Table 10)

Timing Output 1 1 pps, 50 ns accuracy

(HCMOS level, active Hi, rising edge)

Heading warning I/O Open relay system indicates invalid heading

Table 21 – System Interface Specifications

1 The 1 PPS Timing output is available on the connector on the G2’s enclosure,

but is not wired in the third-generation’s cables (see Table 26).

Power

Parameter Specification

Supply Voltage 11 to 36 VDC

Power Consumption < 4.5 W nominal,

360 mA (max) @ 12 VDC

Table 22 – Power Specifications

Mechanical

Table 23 – Mechanical Specifications

Parameter Specification

Dimensions 60 cm x 16 cm x 18 cm

(23.6 in. x 6.3 in. x 7.1 in.), not including mount

Weight 1.5 Kg

Enclosure Rating IP 67

Operating Temperature -32°C to +74°C

Storage Temperature -40°C to +85°C

Humidity 0 to 100% condensing

Data cable length

• standard:

o 15 metres (50 feet),

or 30 metres (100 feet)

(custom lengths are available)