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<title>RS232 Cabling Requirements</title> <h1 align=center>RS232 Cabling Requirements</h1><!--INDEX "rs232 cabling" "rs232 pinout" -->Some hosts require the hardware flow control signals to be connectedbefore they will send and receive data via the RS232 ports. This may betrue even if you have explicitly disabled the hardware flow control.<p>LSI Logic's Evaluation boards require only pins 2, 3, and 5 to beconnected (except CON7 on the SDP1000).<p><center><table border cellpadding=6><tr><td><pre> HOST LSI EVAL BOARD==================== ============== DB25 DB9 DB9 PIN PIN PINRXD 2 3 --------------------<----------------- 2TXD 3 2 -------------------->----------------- 3GND 7 5 -------------------------------------- 5RTS 4 7 --+ |CTS 5 8 --+DSR 6 6 --+ |DCD 8 1 --+ |DTR 20 4 --+</pre> </td></tr></table></center></dl><p><hr><b>Navigation:</b> <a href="index.htm">Document Home</a> | <a href="doctoc.htm">Document Contents</a> | <a href="docindex.htm">Document Index</a> <p>
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