Pc Parallel Interface - IBM 6500 User 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 detailed reliable data transfer, a maximum cable length of six
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Infoprint 6500 User's Manual
feet is recommended.
Table 6. Printer PC Parallel Interface Connector Pin Assignments
Input Signals
Signal
DATA LINE 1
Return 20
DATA LINE 2
Return 21
DATA LINE 3
Return 22
DATA LINE 4
Return 23
DATA LINE 5
Return 24
DATA LINE 6
Return 25
DATA LINE 7
Return 26
DATA LINE 8
Return 27
DATA STROBE
Return 19
PAPER 15
INSTRUCTION 33
Return
Output Signals
Pin Signal
2 ACKNOWLEDGE
Return
3 ONLINE/SELECT
FAULT
4 FAULT
Return
5 PAPER EMPTY
Return
6 BUSY
Return
7 NAUTO FEED
8 NINIT (PRIME)
9 NOT
DATAPRODUCTS*
1 EXTERNAL 5 VOLTS
N SELECT
Miscellaneous
Pin Signal
10 CHASSIS GROUND
28
13 GROUND (GND)
32
32 (NC)
29
12
30
11
29
14
31
35
18
36
Pin
17
16, 30
34