Square Peg Communications Inc.’s Inmarsat-C Physical Layer Tester (CPLT) is a software application that runs on the generic high-rate Physical Layer Tester (PLTH) platform. The CPLT supports testing of the physical layer performance and protocol implementations of Inmarsat-C Mobile Earth Stations (MESs) and Land Earth Stations (LESs).
The CPLT supports all of the Inmarsat-C2 channel types using DSP-based modem technology. An Ethernet interface allows various options for control of the CPLT or for control of external equipment by the CPLT. A serial interface is also provided to allow communication with an MES under test.
The CPLT is a powerful and flexible test tool. A familiar Windows-based user interface provides easy access to test functions, while a powerful scripting language allows every feature of the CPLT and equipment under test to be exercised in automated test cases and suites.
The CPLT also provides a Test Sequencer user interface compatible with that used with legacy Inmarsat-C test equipment. This facility allows users to execute existing type approval RTP scripts, while the channel simulator and signal analysis facilities provide the means of demonstrating compliant physical layer performance.
(Not all components are required for all test applications)
Physical channels |
3 simultaneous (optional 4th channel) |
Channel types |
TDM (1200 sym/s BPSK) |
Channel impairments |
Independently-specifiable parameters:
|
Physical channels |
3 simultaneous (optional 4th channel) |
Channel types |
TDM (1200 sym/s BPSK) |
Signal analysis |
Signal capture (raw samples and soft decisions)
|
Medium |
10/100BaseT |
Functionality |
Remote control interface (e.g., to LabView™ or Windows remote desktop) |
General |
Test Sequencer interface messages |
Signal analysis |
Signal analysis measurements |
General |
Procedure-based (like Basic, C or Pascal) |
CPLT-specific |
Configuring and controlling modems |