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This information is here courtesy of the MIDI Manufacturers Association.
It was taken from the
MMA web site
on June 18, 2003. To check on the MMA site
For the original version,
click here.
Figure 1: Electrical
Specification
MIDI Standard Hardware NOTES:
1. Opto-isolator shown is Sharp PC-900. HP 6N138 or other can be
used with changes.
2. Gates "A" are IC or transistor; Resistors are 5%.
3. Maximum cable length is fifty feet (15 meters), terminated on
each end by a 5-pin DIN male plug (i.e. SWITCHCRAFT 05GM5M).
4. Cable is shielded twisted pair, with shield connected to pin 2
at both ends.
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