Appendix A
Direction
refers to the direction of signal flow as viewed from the
printer.
Return
denotes “twisted-pair return” and is to be connected at
signal-ground level. When wiring the interface, be sure to use a
twisted-pair cable for each signal and never fail to complete
connection on the return side. To effectively prevent noise, these
cables should be shielded and connected to the chassis of the system
unit and printer, respectively.
All interface conditions are based on
level. Both the rise and
fall times of each signal must be less than 0.2
The cable must be of the type with an overall braided shield, Belden
8345 or equivalent.
Connectors must have shielded housings. The overall shield must
be bonded to the shielded housings at both ends of the cable.
A - 6
C a b l e
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Страница 241: ...Appendix C Optional Accessories Available QMS Accessories C 1...
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Страница 245: ...Appendix D Character Encoding Tables Character Encoding Tables D 1...
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Страница 248: ...Appendix D Standard Fonts Character Set 02x I 03x 15x 1 h 1 i j 1 k 1 1 I m n 0 D 2 Character Encoding Tables...
Страница 249: ...Appendix D Symbol Encoding Character Encoding Tables D 3...
Страница 250: ...Appendix D ITC Zapf Dingbats Encoding I octal IO I 1 I 2 I 4 I 5 16 17 I D 4 4 Character Encoding Tables...
Страница 251: ...Appendix E Computer Literacy How Your Computer Talks to Your Printer E 1 Your Printer s Memory E 1 Bibliography E 2...
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