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15 Interfaces
Overview
The printer interface is the point where the data line from the host computer
plugs into the printer. The interface processes all communications signals and
data to and from the host computer. It consists of a printed circuit board
assembly (PCBA) and a connector for the data cable from the host computer.
Communication signals and data may be sent over Ethernet, parallel, or serial
lines.
When data is sent through multiple interfaces, the Autoport Switching feature
forces the printer to automatically switch between the serial and parallel port
and between the Ethernet adapter and the serial port when NIC is installed.
This chapter describes the following interfaces:
• Centronics
• Bi-Tronics
• RS-232 serial
• RS-422 serial
Note To determine which interface is installed on your printer, refer to Table 1 on
page 19. If you require a parallel interface and it is not installed, contact
your authorized Printronix representative.