Centronics Parallel Interface
This interface enables the printer to operate with controllers designed for buffered Centronics printers. The interface is capable of transferring up to 200,000 characters per second. The maximum cable length from the controller (host computer) to the printer is 15 feet.
Centronics Interface Connector Pin Assignments
The printer provides a 36±pin D±shell connector on the rear panel for connection of a Centronics parallel interface cable. Table B±1 lists the pin assignments of the Centronics interface connector.
Table B±1. Centronics Parallel Interface Connector Pin Assignments
Input Signals
Output Signals
SignalPin
SignalPin
DATA LINE 1 | 2 |
Return | 20 |
DATA LINE 2 | 3 |
Return | 21 |
DATA LINE 3 | 4 |
Return | 22 |
DATA LINE 4 | 5 |
Return | 23 |
DATA LINE 5 | 6 |
Return | 24 |
DATA LINE 6 | 7 |
Return | 25 |
DATA LINE 7 | 8 |
Return | 26 |
DATA LINE 8 | 9 |
Return | 27 |
PAPER INST | 15 |
Return | 14 |
DATA STROBE | 1 |
Return | 19 |
ACKNOWLEDGE | 10 |
Return | 28 |
SELECT | 32, 13 |
PAPER EMPTY | 12 |
BUSY | 11 |
Return | 29 |
Chassis GND | 17 |
Spares | 18, 30, 31 |
| 34, 35, 36 |
B±2 | Host I/O Interfaces |
