HIKVISION DS-7108HI series User Manual page 75

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".
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.
Username, password and Verify password: Only used when work mode is "PPP". Used for
login when remote PC dialup through PSTN.
Phone: Only used when work mode is "PPP" and PPP mode is "Active". It is the phone
There are two options: "Active"
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