Pc Parallel Interface - IBM 6400 Setup Manual

PC Parallel Interface

The PC Parallel interface (also referred to as the "Centronics" interface)
enables the printer to operate with controllers designed for buffered PC
Parallel printers. The length of the data cable from the host computer to the
printer must not exceed 15 feet (5 meters).
NOTE: For a more reliable data transfer, a maximum cable length of six feet
Table 5–3. Printer PC Parallel Interface Connector Pin Assignments
Input Signals
Signal
DATA LINE 1
Return
DATA LINE 2
Return
DATA LINE 3
Return
DATA LINE 4
Return
DATA LINE 5
Return
DATA LINE 6
Return
DATA LINE 7
Return
DATA LINE 8
Return
DATA STROBE
Return
PAPER INSTRUCTION 15
Return
is recommended.
Output Signals
Pin Signal
2 ACKNOWLEDGE
20 Return
3 ONLINE/SELECT
21 Fault
4 PAPER EMPTY
22 Return
5 BUSY
23 Return
6 NAUTO FEED
24
7 NINIT (PRIME)
25
8 NOT DATAPRODUCTS*
26
9 EXTERNAL 5 VOLTS
27
1 N SELECT
19
33
Miscellaneous
Pin Signal
10 CHASSIS GROUND
28
13 GROUND (GND)
32
12 (NC)
30
11
29
14
31
35
18
36
* Used by DP adapter.
Chapter 5. Printer Interfaces
Pin
17
16, 30
34
5–7