Fujitsu DL7400 Manual Do Utilizador

D

This parallel interface can operate in the following two modes: 

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. 

 

This printer can communicate with a computer 
through  a Centronics parallel interface, a RS-232C  
serial interface, a USB interface, or a LAN interface.  You can specify 
the interface selection mode so that the printer uses which 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 communications. 
Most users do not need the information in this appendix.  To simply 
connect your printer to your computer, follow the instructions in Chapter 
2. 

•  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. 

•  “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).