25-pin to 9-pin converter internal connection is defined as following:
(3) When the serial port of DVR is connected with DCE device (like MODEM), one end
of the cable is 8-pin RJ45 plug-in, the other end is DB25 pin plug-in, the corresponding
relationship is as following:
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Copyright © 2005. All rights reserved.
User Manual for COLOSSUS Series Embedded Net DVR
Connection for RJ45 and DB9
Connection for DB25 and DB9
Connection for RJ45 and DB25 (DCE)
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