IBM 6400 Series, Setup Manual

Page: 214 / 316

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