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(2) 25-pin to 9-pin converter’s internal connection is like this:
(3) If you don’t want to use 25-pin to 9-pin converter to connect DVS and DTE through RS232 interface, you must
use RJ45-DB9 cable. Its internal connection description is:
(4) When the RS232 interface of the DVS connects with the DCE (such as MODEM), one end of the cable is the
8-pin RJ45 connector and the other is the DB25 male connector. Below is the description of the internal con-
nection between RJ45 and DB25: