Interfaces74
Table 72. Centronics Interface Connector Pin Assignments
INPUT
SIGNALS
OUTPUT
SIGNALS
Signal Pin Signal Pin
Data Line 1
Data Line 2
Data Line 3
Data Line 4
Data Line 5
Data Line 6
Data Line 7
Data Line 8
Data Strobe
Return
Return
Return
Return
Return
Return
Return
Return
Return
ACKNLG
SLCT
Busy
Chassis
Spare
Return
Return
PE
Ground
2
20
3
21
4
22
5
23
6
24
7
25
8
26
9
27
1
19
10
28
32, 13
12
11
29
17
30,31,
34,35,
36
Paper Instruction
Return 15
14
Centronics Parallel Interface Configuration
The
printer is configured at the factory according to the specified interface. However
, the configura
-
tion
is also user selectable. The following configuration parameters can be verified or changed as nec
-
essary to meet specific application requirements:
Data Bit 8 (enable or disable)
Data Polarity (standard or inverted)
PI line (enable or disable)
Response Polarity (standard or inverted)
Latch Data On Leading or Trailing Edge of Strobe
These
parameters are displayed under the Application Compatibility/Host Interface/Centronics sub
-
menu
selectable from
the control panel. Refer to the Control Panel Configuration Diagram in the Con
-
figuration chapter for information on selecting the various parameter values.