PQ-6 PLUS (RO)
The Centronics parallel interface is a 25-pin, parallel byte interface. It has eight lines that carry their respective binary bits in parallel. The transmission of these data bits is controlled by the computer-supplied STROBE pulse. Handshaking (flow control) is achieved by asserting or deasserting either the ACKNLG or BUSY signal from the printer.
| Twinaxial | | |
| | PQ-6 PLUS (RO) | Printer |
| Serial EBCDIC | ASCII data serial |
| or parallel | |
| data and | |
S/3X, AS/400 or remote controller | commands | | |
| (1 MHz bit rate) | | |
Figure 2-1. Typical Application.
