Cordless Telephone User Manual

Limitations of the IPC-1600 MS-DOS
Device Driver
All IPC-1600 boards in the system must be assigned the same starting
controller memory address; otherwise, only one board can be accessed under
native MS-DOS. All IPC-1600s can be diagnosed regardless of controller
memory address assignments; however, the controller memory address switch
settings must be below 1MB.
This MS-DOS device driver will NOT drive the following:
■ Any indigenous serial I/O ports such as COM1: and COM2:.
■ The indigenous parallel printer ports LPT1: and LPT2:.
The built-in MS-DOS RS-232C and printer device drivers can coexist with
the Intelligent Ports Card MS-DOS device driver to provide services on the
indigenous ports.
Any application software that bypasses all MS-DOS device drivers and
controls the hardware directly will NOT work with an Intelligent Ports Card
and its MS-DOS device driver. However, those applications which bypass the
high-level MS-DOS interfaces and use INT 14 interfaces will work.
In the native MS-DOS environment, the recommended
machine-to-machine file transfer command is as follows:
COPY filename /B COM
x /B
such that the entire file is transferred including the execution of the CTRL Z
keystroke sequence.
2-18 IPC-1600 USER’S GUIDE