IBM 6400-i05, Setup Manual

Page: 254 / 370

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Chapter 5
PC Parallel Interface
One Char Enquiry
When enabled, and the IGP feature is available, a status byte is sent back to
the host when the poll character or the command SFCC enquiry is sent to the
printer (serial interface only). The poll character is received and the status
byte is sent whether the printer is online or offline. The SFCC enquiry will only
be processed when the printer is online.
Poll Character
This option is used when One Char Enquiry is enabled and the IGP feature is
available. Whenever the printer receives this character, it sends aresponse to
the host indicating the current state of the printer. It may be configured from 0
through 255. The default value is 0.
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 8. 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*
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