8-26
Section 8: Model 9100 — Routine Maintenance and Test
Final Width = 215mm
PARALLEL PORT
1
13
14
25
8.4
Printing Selftest Results
The results of Full and Fast selftests can be printed out by a printer connected to the
parallel port J103 on the rear panel. It can also be used to print out certificates for UUTs
calibrated in Procedure mode.
8.4.1
Parallel Port J103 (Rear Panel)
This 25 way D-Type socket is located
beneath the IEEE-488 connector on the
rear panel. Its connections are similar to
the 25-way printer port on PCs, carrying
control and data for an external printer as
designated in the table.
Pin Layout
Pin Designations
9100
9100
9100
Description or Common Meaning
Pin No.
Signal Name
I/O
1
STROBE_L
Output
1
µ
s pulse to cause printer to read one byte of data
from data bus DO1 — DO8.
2
DO1
Output
Data bit 1
3
DO2
Output
Data bit 2
4
DO3
Output
Data bit 3
5
DO4
Output
Data bit 4
6
DO5
Output
Data bit 5
7
DO6
Output
Data bit 6
8
DO7
Output
Data bit 7
9
DO8
Output
Data bit 8
10
ACKNLG_L
Input
Pulse to indicate that the printer has accepted a
data byte, and is ready for more data.
11
BUSY_H
Input
Printer is temporarily busy and cannot receive data.
12
P_END_H
Input
Printer is out of paper.
13
SLCT_H
Input
Printer is in online state, or connected.
14
AUTO_FEED_L
Output
Paper is automatically fed 1 line after printing. This
line is fixed _H (high) by the 9100 to disable
autofeed.
15
ERROR_L
Input
Printer is in 'Paper End', 'Offline' or 'Error' state.
16
INIT_L
Output
Commands printer to reset to power-up state, and
in most printers to clear its print buffer.
17
SLCT_IN_L
Output
Commands some printers to accept data. This line
is fixed _L (low) by the 9100.
18-25
0V_F
Output
Digital Common
_H
≡
Logic-1 active;
_L
≡
Logic-Ø active.