Q32128: Extension Cables for Microsoft Mice

Article: Q32128
Product(s): See article
Version(s): 5.x 6.x 1.00
Operating System(s): MS-DOS
Keyword(s): ENDUSER | | mspl13_basic
Last Modified: 17-JUL-1989

Microsoft retails a 1.5-meter InPort extension cable. Although the
cable was designed for the gray-button mouse, we have found, under
informal testing, that the extension cable works with the new
white-button mice (serial and bus).

If you decide to make a longer cable, special wire is not needed. The
Microsoft extension cable uses shielded, 7-conductor, 30-gauge wire. A
heavier gauge wire might be considered for strength.

If an extension is added to the serial mouse, the cable needs to pass
the following pins straight through as follows:

   pins 2,3,4,7,20 and shield for the 25-pin D version, or
   pins 2,3,4,5,7 and shield if using the 9-pin version.

Microsoft is not aware of any special considerations for special
installation, such as alignment to compensate for cable
characteristics, special cable termination (R, RC, etc.), needed for
line drivers, or noise-immunity considerations.

If you do anything to change the mouse cabling, the machine is likely
to violate FCC Electromagnetic Interference regulations. The computer
may interfere with nearby television or radio reception. Operation in
a residential environment is especially ill-advised, and such a
configuration certainly cannot be offered for sale without extensive
testing and FCC certification.

Microsoft takes no responsibility for the performance of its products
when modified or used in a manner other than that intended and advised
in the manual. Microsoft assumes the customer will comply with all
applicable laws and regulations, and offers the above advice only on
that basis.

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