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.