18
S
↔
P (SERIAL
↔
PARALLEL) CONVERTER (128K)
11. If the problem isn’t solved, check the hardware and software
configurations of the attached devices. If possible, test both of your devices
by detaching them from the S
↔
P Converter and connecting them to each
other with your input or output cable. Attempt communication through
the same parallel ports you were using when the problem occurred. If
communication goes smoothly for both of your devices and their associated
cables when the Converter isn’t involved, go to Step 12.
If there is still a problem after you make these substitutions, any of
several device-related difficulties may be occurring. Some examples:
• One of the attached devices might be set up to communicate
through the wrong port.
• One of the parallel ports you are using is broken.
• One of the attached devices or its software may be hitting a fault
(a bug in its programming) when it tries to communicate.
• A software package or a driver on one device might be incompatible
with the other device.
The problem could also be highly application-specific. For example,
the polarity option on HP LaserJet printers is often set incorrectly. You
might want to consult the manuals of the devices and software involved in
the problem as you carefully investigate your application.
12. If the problem still isn’t solved, call us.
5.1.3 I’
M
L
OSING
D
ATA
1. Check the word-structure and flow-control settings of the Converter’s
DIP switch. If they are correctly set to match your serial device, go to
Step 2.
2. The transmission may have overflowed the buffer. There’s a very
good chance of this if you are sending files with lots of graphics. Try
breaking such files into smaller pieces.
3. If the problem isn’t solved, call us.
Содержание PI035A
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