Filter
Top Products
User's Guide
C-6 Interfaces
Table C-1. Parallel Pin Assignments––continued
Pin Signal Source Printer Usage
11 BUSY Printer Goes high within 0.25 microsecond after
STROBE– pulse to suspend further data
transfer while printer receives data byte
on DB1-DB8 lines; returns low at least 5
microseconds later or when printer buffer
can hold another byte
12 PAPER Printer Goes high when printer has data to print,
but no paper is loaded
13 SELOUT Printer Remains high while SELIN– is low or
disconnected
14 AUTO Computer May go low to cause printer to advance
FEED– paper one line after printing; otherwise,
must be high or disconnected
15 Not connected
16 LGND Logic ground
17 CGND Chassis ground
18 +5V Printer +5 volts dc, 200 mA maximum
19 GND Ground
20 GND Ground
21 GND Ground
22 GND Ground
23 GND Ground
24 GND Ground
25 GND Ground
26 GND Ground
27 GND Ground
28 GND Ground
29 GND Ground
30 GND Ground
User's Guide
C-6 Interfaces
Table C-1. Parallel Pin Assignments––continued
Pin Signal Source Printer Usage
11 BUSY Printer Goes high within 0.25 microsecond after
STROBE– pulse to suspend further data
transfer while printer receives data byte
on DB1-DB8 lines; returns low at least 5
microseconds later or when printer buffer
can hold another byte
12 PAPER Printer Goes high when printer has data to print,
but no paper is loaded
13 SELOUT Printer Remains high while SELIN– is low or
disconnected
14 AUTO Computer May go low to cause printer to advance
FEED– paper one line after printing; otherwise,
must be high or disconnected
15 Not connected
16 LGND Logic ground
17 CGND Chassis ground
18 +5V Printer +5 volts dc, 200 mA maximum
19 GND Ground
20 GND Ground
21 GND Ground
22 GND Ground
23 GND Ground
24 GND Ground
25 GND Ground
26 GND Ground
27 GND Ground
28 GND Ground
29 GND Ground
30 GND Ground