SXBlue GPS Reference Manual
14
Figure 3-2 displays the RS-232 socket connector pin-out as seen on the SXBlue GPS
receiver (Mating connector is a Conxall 16282-3SG-3XX).
Figure 3-2 RS-232 Connector Pin-out
Refer to Appendix B for further interfacing information.
Note - For successful communications, the baud rate of the SXBlue GPS serial ports
must be set to match that of the devices to which they are connected. Chapter 8
describes the baud rate change command.
3.8 Bluetooth Interface
Bluetooth is a wireless communication technology that enables seamless data connections
between a wide range of devices through short-range digital two-way radio. In the case of
the SXBlue GPS, it is equipped with Bluetooth technology and requires another Bluetooth
device with which to communicate (a Bluetooth-capable PDA, for example). The Bluetooth
wireless module inside the SXBlue GPS is a power class 1 device supporting version 1.1 of
the Bluetooth standard, and has been certified.
The Bluetooth port should not be used for firmware updates; it is recommended you use the
serial port for any software updates. Also, the SXBlue GPS does not support pairing (or
bonding) using passwords (or pass codes, etc). The Bluetooth interface has been kept
simple to emulate a serial port profile and simple cable replacement.
3.9 Factory Default Parameters
The following tables show the application (firmware) present within the SXBlue GPS engine
and the default communication parameters.
Table 3-3 Firmware Applications
Application
WAAS (SBAS) – Default
e-Dif (if available)
Pin 1. RXD from
External Device
Pin 3. Ground
Pin 2. TXD to
External Device