Interface Signals - Mita DP-2800 Instruction Handbook Manual

Interface Signals

The pins of the parallel interface connector carry the signals listed in Table C.1 . Asterisks in the table
indicate signals that are active low. The table also indicates whether each signal is incom-ing or
outgoing with respect to the printer.
Table C. 1. Parallel Connector Pin Assignments
Pin In/out
1 In Strobe* [nStrobe]
2 In Data 0 [Data 1]
3 In Data 1 [Data 2]
4 In Data 2 [Data 3]
5 In Data 3 [Data 4]
6 In Data 4 [Data 5]
7 In Data 5 [Data 6]
8 In Data 6 [Data 7]
9 In Data 7 [Data 8]
10 Out Acknowledge* [nAck]
11 Out Busy [Busy]
12 Out Paper Empty [PError]
13 Out On-Line (Select) [Select]
14 In Auto-feed [nAutoFd]
15 — Not connected
16 — 0V DC
17 — Chassis GND
18 — +5 V DC
19 — Ground return
20 — Ground return
21 — Ground return
22 — Ground return
23 — Ground return
24 — Ground return
25 — Ground return
Appendix C Host Computer Interface
Description
(Continued on next page)
C-3