BB Electronics Network Card PPC User Manual

Not Recommended for New Installations.  
Please contact Technical Support for more information.  
Parallel & Serial Port Checker  
Model PPC  
Documentation Number PPC2095  
This product  
Designed and Manufactured  
In Ottawa, Illinois  
USA  
of domestic and imported parts by  
B&B Electronics Mfg. Co. Inc.  
707 Dayton Road -- P.O. Box 1040 -- Ottawa, IL 61350  
PH (815) 433-5100 -- FAX (815) 433-5105  
Internet:  
© Copyright 1992 B & B Electronics  
Revised August 1992  
Documentation Number PPC2095 Manual  
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350  
Cover Page  
PH (815) 433-5100 -- FAX (815) 433-5105  
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Note that when you execute the program "PORT_CK.EXE" will  
create a file labeled "PORTCK.DAT". The software writes to this  
file each time PORT_CK.EXE is executed. The software records  
the data from the PORT_CK software. That is, the test that is  
performed and the results of that test are added to the file  
"PORTCK.DAT" each time a port check is performed. Included in  
the file is the date and time that the test was performed.  
If you are installing the port checker on the end of a  
communication cable instead of directly onto the computer, and the  
test fails, you should try installing the port checker directly onto the  
computer port to determine if your cable is bad or if your port is bad.  
It is important to note that not all ports contain all the standard  
handshake lines. If your port is specifically designed to drive some  
external device that does not require the handshake lines, that port  
may fail the test but still be capable of driving the external device.  
The port checker is designed by connecting certain outputs on  
the serial and parallel ports back to its inputs. Those outputs are  
then toggled high and low and the port checker software verifies that  
the inputs are following the output lines. Therefore, it is possible that  
an output line could have gone bad, and the port checker indicates  
that an output and input line has failed.  
RS-232  
The port checker can test either DB-9 or DB-25 RS-232 ports. If  
you connect the port checker onto a "standard IBM" RS-232 port,  
the port checker does a complete check of all communication lines  
and handshake lines. Most RS-232 ports contain the handshake  
lines and should pass the test.  
Parallel  
The port checker tests any "standard IBM" parallel port.  
However, since many devices that connect to the parallel port (such  
as printers, plotters, etc.) do not use all the parallel handshake lines,  
cables that are specifically designed for that external device may not  
contain all the connections. Therefore, it is important to connect the  
port checker directly onto the computer port. If you install the port  
checker onto a parallel port or onto the end of the cable driving the  
external device and the port checker diagnoses a failure, the line  
that caused the failure may not be needed in your application.  
2
Documentation Number PPC2095 Manual  
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350  
PH (815) 433-5100 -- FAX (815) 433-5105  
Download from Www.Somanuals.com. All Manuals Search And Download.  
RS-422/RS-530  
The port checker uses the RS-232 software to check the RS-  
422/530 ports. Some 422/530 ports support all RS-232 handshake  
lines but many do not. Therefore, when checking 422/530 ports, you  
should check the port after it is first installed and working properly.  
You will then have a record of how your 422/530 port initially tested  
in the file “ PORTCK.DAT “. Thereafter, if you suspect a problem  
with your port, you can run the port check and compare these results  
to the original results.  
Special Note on B&B's RS-422/485 I/O Card, Model  
422ICCR3: When using the port checker to check this IO  
card, your port checker jumper should be set to RS-530.  
When you run the port checker software you will get an RI  
(Ring Indicator) failure.  
The port checker is not designed to test RS-485 cards. If your  
IO card is set up for RS-485 you will get multiple failures.  
If you have an RS-232 to RS-422 converter and are using the  
port checker to test the output of the converter, you should be using  
the RS-422 portion of the port checker. However, it is important to  
note that, depending on how the handshake lines are handled, you  
might get handshake line failures. If the RS-232 to RS-422  
converter is working properly, or if you are checking a standard RS-  
422 port, you should not get a TXD or RXD failure. If they are  
working that test should pass.  
Exiting the Test  
After each test is performed, the software will ask if another test  
is to be performed or if you want to exit the port checker program.  
IMPORTANT: After exiting the port checker software program you  
should do a hardware reboot. The port checker software may have  
altered your system configuration registers that are reconfigured on  
each hardware reboot.  
Documentation Number PPC2095 Manual  
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350  
3
PH (815) 433-5100 -- FAX (815) 433-5105  
Download from Www.Somanuals.com. All Manuals Search And Download.  

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