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QSD42908 User’s Manual
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Note: Please make sure the PTZ camera you are using can support the cruise function.
5.18 RS232 setup
There is one RS-232 port on the DVR rear panel. In main menu, move “Active Frame” to
“RS232” icon and press the【ENTER】key, you will 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 a network.
PPP Mode: Only used when work mode is “PPP”. There are two options: “Active” and
“Passive”. “Active” means DVR will dialup through PSTN. “Active” function is currently 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 currently available.
Remote IP: Only used when work mode is “PPP”. This IP is defined for remote PC that will
connect to 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