Can anyone tell me the wiring pin-out for a 9pin serial to 25pin Black Box RS232 Interface?
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DB9>25 Wiring for Black Box?
Started by rwphilli, Feb 05 2004 02:20 PM
3 replies to this topic
#2
DGlass
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Posted 05 February 2004 - 04:43 PM
It would be a standard straight through RS-232 serial cable not a Null Modem Cable.
Be aware that we originally wrote that the Black Box Serial to 20ma Current Loop Converter, number CL090A-F, was the unit we recommended many years ago.
Just with in the last couple of weeks we found out that Black Box has changed the model to a CL1090A-F. We have not had time to test the compatibility of the newer unit yet.
Be aware that we originally wrote that the Black Box Serial to 20ma Current Loop Converter, number CL090A-F, was the unit we recommended many years ago.
Just with in the last couple of weeks we found out that Black Box has changed the model to a CL1090A-F. We have not had time to test the compatibility of the newer unit yet.
#3
rwphilli
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Posted 05 February 2004 - 10:26 PM
David. Thank you for the reply. I understand it is not a null modem but am still not sure of pin# to pin# on the 9 to 25 pin connectors. As near as I can figure out it may be like this 9pin > 25pin.
2rxd>2txd, 3txd>3rxd, 5gnd>?gnd, 7rts>?cts, 8cts>?rts
Can you fill in the question marks and is anything else correct? I have the CL090A-F boxes but do not have an information sheet in front of me.
2rxd>2txd, 3txd>3rxd, 5gnd>?gnd, 7rts>?cts, 8cts>?rts
Can you fill in the question marks and is anything else correct? I have the CL090A-F boxes but do not have an information sheet in front of me.
#4
DGlass
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Posted 06 February 2004 - 02:34 PM
I have attached a .pdf file that should help you to visualize both the Computer to IQ Interface RS-232 connections as well as the IQ Interface to a Modem connections.
Attached Files
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IQSerialConnections.pdf 79.67K
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