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5.16 RS232 setup
There is one RS-232 port at DVR rear panel. In main menu, move “Active Frame” to
“RS232” icon and perss【ENTER】key, you enter into “RS232” setup menu：
RS232 menu description
RS-232 parameters：Including baud rate, data bit, stop bit, parity, flow control, etc.
Work mode：The RS-232 can be used as “Console”, “PPP” or “Transparent Channel”.
Console：Connect with PC serial port. You can use HyperTerminal or NetTerm to control it.
PPP：Connect Modem, using PSTN to transfer video image.
Transparent channel：Connect serial devices. Remote PC can control these serial devices
through network.
PPP Mode：Only used when work mode is “PPP”. There are two options：“Active”
and”Passive”. “Active” means DVR will diaup through PSTN. “Active” function is not
available. “Passive” means DVR will wait for dialup.
Callback mode：Only used when work mode is “PPP”. There are two options：“By Dialer”
and “Preset Tel’. This function is not available.
Remote IP：Only used when work mode is “PPP”. This IP is defined for remote PC that will
connect DVR through PSTN.
Local IP：Only used when work mode is “PPP”. This IP is defined for DVR.
Mask：Only used when work mode is “PPP”. Remote IP and Local IP are in the same sub net.