Sunit c6, User Manual, Page: 14 / 32

5.6.1 Functions of the vehicle cable
Functions of the vehicle cable can be set according to user’s demand. Standard settings and wires
are described in connector layout on page 19.
- CON16/pin18 (Heat Start), if connected with wake-up signal (e.g. Webasto) to 12V/24V, the unit will
start preheating, otherwise when ignition key is turned on (selectable in Sunit Telematics).
The most of the features of the vehicle cable are adjustable in Sunit Telematics application, refer to
Appendix A - Sunit Telematics instructions.
6. INSTALLATION TESTS
6.1 Power cable test
Before connecting cables to the CPU they have to be tested. With this test one can ensure that de-
vices wouldn’t get damaged when current will be connected. Use the multimeter for testing
- grounding (GND): Test to the body of the vehicle with “beep” -function
- constant power supply (PWR-IN): measure the voltage 12V when the ignition key is off
- start of the pre-heating (Heat Start/DI5): Measure that voltage is 12V or 24V
- current of the ignition lock (Ignition): Measure that voltage is 12V or 24V when the ignition key is on
If these tests are passed successfully, cables are installed correctly.
6.2 Antenna tests
If the GPS or phone doesn’t get the connection after installation, the antennas shall to be measured.
Loosen the power connector (PWR) and check that the cables of antennas are properly in their own
connectors in the CPU. Check that the cables are undamaged.
GPS antenna
Measure that the resistance between the signal and ground is not in short circuit (not 0 Ω ) or cut
(not ∞Ώ ).
Phone antenna
Measure that the resistance between the signal and ground is ∞Ώ i.e. infinitive.
6.3 Printer test
If the printer is connected, test it from operating system’s printer setup.
6.4 Phone test
The Sunit c On-board PC includes the internal GSM/GPRS-phone as option. The testing of the
phone is performed preferably with which is normally used in the assignments. If there isn’t such, test
can be performed with e.g. Windows HyperTerminal
.
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