Appendix D Interface Information; Parallel Interface - Fujitsu DL3700 Pro User Manual

PARALLEL INTERFACE

User's Manual
#D Appendix D
INTERFACE INFORMATION
This printer can communicate with a computer
through either a Centronics parallel interface or
an RS-232C serial interface. You can specify the interface selection
mode so that the printer uses either interface or it can automatically
select the interface from which it first receives data.
This appendix provides information you may need for wiring your
own interface cables or for programming computer-to-printer commu-
nications. Most users do not need the information in this appendix. To
simply connect your printer to your computer, follow the instructions
in Chapter 2.
This parallel interface can operate in the following two modes:
• Unidirectional (forward channel) mode or conventional mode:
This printer supports a conventional Centronics interface.
• Bidirectional (forward/reverse channel) mode or nibble mode:
This printer supports a bidirectional communication per Nibble
mode of the IEEE 1284 Standard.
The cable connector at the printer side should be a shielded,
Amphenol DDK 57FE-30360 or equivalent.
The connector pin assignments are given in the following tables by
modes. In the tables:
• "Input" denotes a signal from the computer to the printer.
• "Output" denotes a signal from the printer to the computer.
• The return lines specified in the second column represent
twisted pairs, with one side connected to signal ground.
• The standard signal levels are 0.0 to +0.4 V (low), and +2.4 to
+5.0 V (high).
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