iSXblue/SXBlue II GNSS Series Technical Reference Manual
46
If you require assistance in developing a test setup or procedure for evaluating the iSXBlue/SXBlue II,
please contact Geneq.
2.8
Communication
The iSXBlue/SXBlue II features three (3) independent communication ports and any of these can be used
to receive data or send configuration commands to the receiver.
2.8.1
Interface
•
NMEA 0183
Message Interface. The iSXBlue/SXBlue II uses an NMEA 0183 protocol for
interfacing, which allows you to output standard messages recognized by any off-the-shelf GNSS
data collection software. The NMEA interface also allows to easily making configuration changes
by sending text-type commands to the receiver. Relevant commands for the configuration
changes are presented in the following chapter.
•
Binary
Message Interface. In addition to the NMEA interface, the iSXBlue/SXBlue II also
supports a selection of binary message outputs. There is a wider array of information available
through the binary messages, plus binary messages are inherently more efficient with data. If your
application has a requirement for raw measurement data, for instance, this information is
available only in a binary format. Consult Chapter 6 for more information on Binary messages.
2.8.2
Bluetooth, USB and Serial Ports
•
Bluetooth
is a wireless communication technology that enables seamless data connections
between a wide ranges of devices through short-range digital two-way radio. The
iSXBlue/SXBlue II 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 iSXBlue/SXBlue II is a power class 1 device supporting version 2.0 of the
Bluetooth standard, and has been certified. As mentioned in the previous chapter, the
iSXBlue/SXBlue II does not require pairing (or bonding, or authentication) using passwords (or
pass codes, passkeys, etc).
•
The
USB
port on the back panel is of Type B and requires a driver to be installed on the computer
in order to emulate a serial port. See section 1.3 for USB driver installation.
•
There is one
Serial Port
on the iSXBlue/SXBlue II receiver and it is compatible with the RS-
232C interface level to communicate with external data loggers, navigation systems, PC
computers, PDAs and other devices. This serial port is accessible via the back panel of the
iSXBlue/SXBlue II enclosure and has an ‘RS-232’ label. You can interface most devices to the
iSXBlue/SXBlue II directly with the serial cable (supplied with your receiver), accommodating
any gender changes necessary, or with the addition of a null modem as necessary.
The following figure and table detail the pin assignment of the DB-9 connector of the serial port
(DCE Mode) of the iSXBlue/SXBlue II. The Pulse Per Second output (PPS), Event Marker (EM)
and 5Volt Power are available only upon request.
