Fraser's Hill Clock Test Diagnostic

     This diagnostic program tests for the presence of the
     synchronous clock signals Transmit Clock and Receive Clock
     by counting transitions on these signals.  It reports the
     bits per second rate for both signals.  Raported results
     may not be accurate for line speeds in excess of 128K bps.

Hardware Supported

     CLKTEST supports Fraser's Hill FHL-7124, FHL-7135, FHL-7121,
     FHL-8124, FHL-8135, and FHL-8121 adapter cards.

Running Program

     All programs using the adapter card must be terminated
     before running this test program.  To run type
        CLKTEST
     from the DOS command prompt.  If the I/O address on the card
     has been changed from the default of 300 (example 380) type
        CLKTEST 380
     from the DOS command prompt.  The program will run for about
     five seconds then report the results.

Miscellaneous

     The FHL adapter board uses two 16K blocks of PC memory.  It is
     necessary to exclude this memory from use by expanded memory
     managers and other programs.  The following examples for EMM386
     use the default board switch settings.  Note: multiple exclude
     entries are allowed.

     before:
          DEVICE=C:\DOS\EMM386.EXE NOEMS X=C000-C7FF
     after:
          DEVICE=C:\DOS\EMM386.EXE NOEMS X=C000-C7FF X=D000-D7FF