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User’s Manual C-1
C
APPENDIX
INTERFACE
INFORMATION
Interface Information
The printer communicates with a processor through either a
Centronics parallel interface or a pre-installed add-on RS-232C serial
interface. The printer cannot use both interfaces at the same time.
This appendix provides information on wiring interface cables or
programming for processor-to-printer communications. To simply
connect the printer and processor, read the instructions in Chapter 2,
“Setting Up the Printer.”
The Centronics parallel interface is the industry standard. It supports
the bi-directional data transfer in nibble mode of the IEEE 1284
standard. It is also compatible with the conventional Centronics
interface. The cable connector at the printer should be a shielded
Amphenol DDK 57FE-30360 or equivalent.
The following table lists the connector pin assignments. Note the
following:
• “Input” indicates a signal sent to the printer from the processor.
• “Output” indicates a signal sent from the printer.
• Return lines specified in the “Return pin number” column represent
twisted pairs, with one side connected to signal ground.
• The standard signal levels are 0.0 to +0.4 V for low and +2.4 to
+5.0 V for high.
Parallel
Interface
DL6400/6600 Book Page 1 Friday, July 31, 1998 11:42 AM