Measurement Computing Parallel488 - Manual (Page 23)

Section 3 Parallel To IEEE Operation
3.5
10 ACKNLG out The Parallel488 pulses this line low for
>5 µs after it has accepted a character
from the parallel device.
11 BUSY out The Parallel488 sets this line low when
it can accept another parallel character. If the
buffer is full, this line is set high until
the buffer again has space.
12 PE out Out of Paper signal. Not used. Always low.
13 SLCT out Printer Select signal. Not used. Always high.
14 /AUTO FEED in When this line is low and the present
parallel character is a carriage-return,
the Parallel488 will add a linefeed
character to the IEEE data stream.
16 Logic GND Signal return.
19 -30 Logic GND Signal return.
31 /INIT in When a low pulse is received (>50 µs),
the buffer is cleared, Interface Clear (IFC) is
asserted for 100 µs, and the Listener
Address Group is sent on the IEEE bus.
32 /ERROR out Off-Line signal. Not used. Always high.
33 Logic GND Signal return.
36 /SLCT IN in Printer Select Input. Not used.