R&S ESU Series - Page 827

R&S ESU Maintenance and Instrument Interfaces
Instrument Interfaces
8.6 Operating Manual 1302.6163.12 - 03
Fig. 8.51 Pin assignments for the LPT connector.
Pin Signal Input (I)
Output (O)
Description
1 STROBE O Pulse for transmitting a data byte, min. 1µs pulse width
(active LOW)
2 D0 O Data Line 0
3 D1 O Data Line 1
4 D2 O Data Line 2
5 D3 O Data Line 3
6 D4 O Data Line 4
7 D5 O Data Line 5
8 D6 O Data Line 6
9 D7 O Data Line 7
10 ACK I Indicates that the printer is ready to receive the next byte.
(active LOW)
11 BUSY I Signal is active when the printer cannot accept data. (active
HIGH)
12 PE I Signal is active when the paper tray is empty. (active HIGH)
13 SELECT I Signal is active when the printer is selected. (active HIGH)
14 AUTOFEED O When signal is active, the printer automatically performs a
line feed after each line. (active LOW)
15 ERROR I This signal is high when the printer has no paper, is not
selected or has an error status. (active LOW)
16 INIT O Initialize the printer. (active LOW)
17 SELECT IN O If signal is active, the codes DC1/DC3 are ignored by the
printer. (active LOW).
18 - 25 GND Ground connection.