TW5340 User Manual
12
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Confidential
Satellite Output Test
To display GPS/GLONASS satellite outputs the TW5340 must be configured to output a
GSV and GGA messages (default configuration). Run the VisualGPS application (see
section 5.1), select the Front Panel Status tab to display:
Figure 6
To read and write the TW5340 configuration parameters the same hardware test
configuration is can be used while running the Tallysman Windows based Configurator
application on the PC. See section 9 for configuration details.
The SBAS satellite is indicated by its NMEA ID and not the PRN #. See Table 5
for details.
6.3
Power
The TW5340 operates from 3.3V, 5V and 6to 16 volts. Overvoltage and transient
protection is provided making it suitable for installation in the harshest of vehicle
installations.
On the RJ45 connector shown in Figure 3:
Connect the BROWN wire on the TW5340 to Positive supply
Connect the BROWN/WHITE wire on the TW5340 to Gnd
6.4
1PPS
The TW5340 provides a one (1) pulse-per second output signal for timing purposes.
Differential 1PSS outputs are provided at RS422 levels.
The 1PPS signal can be synchronized to GPS or GLONASS reference times to an accuracy
within 50 nanoseconds.
