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The mechanical aspects of the TM500 line of modular instrumentation and those of | The mechanical aspects of the TM500 line of modular instrumentation and those of | ||
the 5000-series are identical except for the interface connector keying, however, | the 5000-series are identical except for the interface connector keying, however, | ||
'''TM500 instruments and 5000-series instruments are electrically totally incompatible | '''TM500 instruments and 5000-series instruments are electrically totally incompatible with each other, and any attempt to operate one type of plug-in in the other type of mainframe may result in the destruction of the plug-in, mainframe or both.''' | ||
may result in the destruction of the plug-in, mainframe or both.''' | |||
(There has been an instance of a TM500 frequency counter installed in a 5000-series mainframe | (There has been an instance of a TM500 frequency counter installed in a 5000-series mainframe |