The RTX1553/SPA-MT Serial Port Adapter is a powerful, dual channel, MIL-STD-1553 bus Monitor Terminal (MT) housed in a box about twice the size of a quarter. The Adapter attaches directly to any PC’s RS232 port or USB port via a converter. It requires no batteries nor external power. It derives all its power from the RS232 lines, although, if preferred, it can be externally powered. The MIL-STD-1553 communication protocol is implemented in firmware using a state of the art FPGA. The RTX1553/SPA-MT is very small and can easily be moved from a PC to a laptop and back. For Windows users, the RTX1553/SPA-MT comes with an extensive software API library with detailed documentation.
The RTX1553/SPA-MT device Architecture
Monitor (MT) Features
The protocol processor detects,
analyses and reports the following MIL-STD-1553
message types:
•BC to RT,
•RT to BC,
•RT to RT transfer,
•Broadcast,
•Mode commands, and Broadcast Mode commands
The RTX1553/SPA-MT can be configured to Monitor traffic on bus-A and bus-B and report back which bus is being used. The user may also select to enable bus-A only (disable bus-B), bus-B only (disable bus-A), or enable both A and B. A programmable mask can direct the device to only Monitor traffic from/to any subset of RTs of interest.
Data Reporting
The RTX1553/SPA-MT sends data to
the PC over the RS232 communication
channel in the form of packets.
A packet contains the command issued
by the Bus Controller, the response from the Remote Terminal (if required by
protocol), all data words associated with
the command, a time-tag and a protocol
validation tag. Protocol errors and
signal integrity errors are indicated in
the protocol validation tag. The error
types detected and reported by the
RTX1553/SPA-MT are:
•Manchester encoding violation
•Word Parity Errors
• Response Time out
•Message size error, including special message size rules for Mode commands
•Broadcast rules violation
Software
For Windows users, RTX provides an extensive software API library as a DLL. The API
is fully documented with coding examples and easy to use. It covers all capabilities of
the RTX1553/SPA-MT Adapter and releases the programmer from detail understanding
of the hardware. RTX Systems offers extensive free support to our customers in their
application development / integration effort.
RTX offers Navigator, an optional graphical user interface (GUI) software for Windows.
Navigator is intuitive and simple to use. It enables the user to exercise all capabilities of
the Adapter.
• Monitors all
Mil-STD-1553 traffic through an USB/RS232 port
• Dual Channel
• Plugs into any USB/RS232 port on any computer
• Works with any Operating System
• Requires no batteries or external power supplies
• Window GUI available
• Extended temperature version available
-40oC to +85oC