User's Manual

Table Of Contents
SPSx80 Smart GPS Antenna User Guide 21
Features and Functions 2
Port 2 is a DB-9 male connector that allows for full 9-pin RS-232 communications.
Port 2 does not support power in or out. For more information on default port settings,
see Default receiver settings, page 66. For more information on connector pinouts, see
Communication specifications, page 72.
The TNC port connector is for connecting a radio antenna to the receiver internal
radio. A whip “rubber duck” antenna is supplied with the system for units with internal
UHF or 900 MHz radios. This connector is not used if you are using an external radio
receiver. For longer range operation (to provide higher gain and to raise the antenna
higher above the ground), you can use a cable to connect an external radio antenna to
the TNC port. For more information on connecting the SPSx80 Smart GPS antenna, see
the Chapter 5, Setting up the Receiver.
Button functions
The receiver has only one button, the Power button, represented in this manual by E .
Press
E
to switch the receiver on or off, and to perform other functions, as described
as follows:
Note – The term “press” means to press the button and release it immediately. The term
hold” means to press the button and hold it down for the given time.
LED behavior
The three LEDs on the front panel of the receiver indicate various operating
conditions. Generally, a lit or slowly flashing LED indicates normal operation, a LED
that is flashing quickly indicates a condition that may require attention, and an unlit
LED indicates that no operation is occurring. The following table defines each possible
LED state:
Action Power button
Turn on the receiver Press
Turn off the receiver Hold for 2 seconds
Delete the ephemeris file Hold for 15 seconds
Reset the receiver to factory defaults Hold for 15 seconds
Delete application files Hold for 30 seconds
The term means that the LED
Slow flash alternates on/off for 500 milliseconds.
Fast flash alternates rapidly on/off for 100 milliseconds
On is lit steady
Off is unlit