TeeJet RX 400p - Manual (Page 42)

RX 400p
98-05044 3-2
R1
As the software that operates the internal components of the RX 400p operates at a
low level, it is often referred to as firmware.
There are three types of firmware within the SLX - DSP, ARM, and menu system
firmware. Each of these types of firmware may be upgraded in the field through the
MAIN serial port, as new revisions become available.
The SBX beacon receiver that resides on-board the SLX incorporates its own version
of firmware. The firmware of the SBX may also be upgraded through the MAIN
serial port.
3.3 Applications
The ARM of the SLX inside the RX 400p supports two simultaneous versions of
firmware. Only one of them is in operation at a given time. These two versions of
firmware may have different functionality, and are also referred to as applications.
The RX 400p ships with two resident applications - WAAS and OmniSTAR.
Switching between the WAAS and OmniSTAR DGPS mode effectively changes the
current application. The receiver is automatically rebooted during this operation. No
operator intervention is required.