Quatech DSP-100 - Manual (Page 49)

Parameter Overlapping:
When installing the DSP-100, each command line argument specifies the first of two
COM ports. If these arguments overlap, the Client Driver will not load. For example, it
is illegal to specify DSP100.SYS COM3 COM4 because the first argument requests
COM3 - COM4 and the second argument specifies COM4 - COM5.
Insufficient Number Of Command Line Arguments:
The DSP-100 command line must contain at least one command line argument for each
DSP-100 to be installed.
DSP-100 User's Manual 43