Filter
Top Products
PPP (Dial-up) Settings
9
Make the following settings if required.
•
BAUD RATE: Normally “115200 bps”
•
DATA SIZE: Normally “8 bits”
•
PARITY: Normally “NONE”
•
STOP BIT: Normally “1”
10
Once you have finished changing the
settings, click the [SET] button.
☞
MODEM CONNECTIONS
•
The modem should be an RS-232C external
modem that is compatible with the command
set devised by Hayes Corporation of the
United States.
•
Large volumes of data may be transmitted
depending on the alarm settings, so a
high-speed modem using a protocol such as
V.90 should be used.
Note: The maximum receiving speed for the
V.90 protocol is 56 Kbps, but the
transmission speed is 33.6 Kbps.
Because of this, the maximum
transmission speed for alarm data from a
camera or the video server will be
33.6 Kbps, even for modems that use the
V.90 protocol.
•
The cameras and video server can only use
software (Xon/Xoff) flow control. In may
cases, the modems may be set up to use
hardware (RTS/CTS) flow control. In such
cases, you will need to use AT command
settings to change the modem settings to
software flow control.
•
Modem commands consist of a single line
starting with the letters "AT", followed by the
commands as shown below. Generally you
should issue an "AT&K4" command to switch
to software flow control, but this may vary
depending on the product. Refer to the
specifications for the modem being used for
further details on this.
MODEM: INITIALIZECOMMAND AT&K4
PPP Connection from a Computer
You can use the Dial-up networking function of a
computer to connect the computer to the camera
via a telephone line. This method does not
involve an Internet Service Provider.
☞
DIAL FROM PC Setting
1
Click the [PPP] menu select button.
The PPP SET screen will be displayed.
2
Select “USE” from the “DIAL FROM PC”
drop-down list box and then click the
[DETAIL] button.
The PPP SET (FROM PC) screen will be
displayed.
Computer
Camera
Modem
Modem
Telephone line
L5AM2/US (VCC-WB4000) GB 2003, 6, 6
English
– 57 –