Function Leds; 1Pps; Power; Aux - Navman LA000578A Manual

3.3 Function LEDs

There are four LEDs on the front panel of the development unit, indicating the status of a
selection of basic functions. The functions of the LEDs are described in the sections that follow.
Note that some early versions of the evaluation unit have different LED legends.

3.3.1 1PPS

This LED will flash on with each transition of the 1 PPS (Pulse Per Second) output of the GPS
receiver. The 1PPS LED will begin flashing when the receiver is tracking a satellite.

3.3.2 Power

This LED indicates presence of primary DC power to the module.

3.3.3 AUX

This LED shows activity on the auxiliary serial RS232 port (DGPS).

3.3.4 GPIO

This LED indicates the state of GPIO15 , which can be set via DIP switch 2. This LED is lit when
switch 2 is set to on. (Note that switch 2 has no effect when using standard Jupiter 30 software.)

3.4 Clock out connector

The Clock out connector provides an interface for all associated timing signals with the module.
It provides the user access to the Time Mark (1PPS) signal. The pinout connections are
described in Table 3-2, and illustrated in Figure 3-4.

Table 3-2 Pin functions of the clock out connector

LA000578A © 2006 Navman New Zealand. All rights reserved. Proprietary information and specifications subject to change without notice.
1PPS Power AUX

Figure 3-3 Function LEDs on front panel

Pin number
1
2 inverted 1PPS signal
3
4
GPIO
Function
not used
normal 1PPS signal
ground
9