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40 MASTERCONSOLE IP USER GUIDE
Serial Port
Figure 35 Serial Port Settings Screen
Use the Serial Port settings screen to specify the device connected to the serial port and how to
use it.
In the Serial Port 1 Settings panel, click on the radio button before the option that best fits the
connected device.
• Configuration login: Do not use the serial port for any special function, use it only for the
initial configuration.
• Modem: The MCIP offers remote access using a telephone line, in addition to the standard
access over the built-in Ethernet adapter. The modem must be connected to the MCIP unit’s
serial interface. Connecting to MCIP via telephone means building up a dedicated point-to-
point connection from your console computer to the MCIP. In other words, the MCIP acts as
an Internet Service Provider (ISP) into which you can dial. The connection is established
using Point-to-Point Protocol (PPP). Before connecting to the MCIP unit, ensure you have
configured your console computer accordingly. For instance, on Windows based operating
systems you can configure a dial-up network connection which defaults to the right settings
like PPP.
− Serial line speed: The speed with which the MCIP is communicating with the modem.
Most of all modems available today will support the default value of 115.200 bps. In case
you are using an old modem and discovering problems try to lower this speed.
− Modem init string: The initialization string used by the MCIP to initialize the modem.
The de- fault value will work with all modern standard modems directly connected to a
telephone line. In case you have a special modem or the modem is connected to a local
telephone switch that requires a special dial sequence in order to establish a connection to
the public telephone network, you can change this setting by giving a new string. Refer to
the modem’s manual about the AT command syntax.
− Modem server IP address: This IP address will be assigned to the MCIP itself during
the PPP hand- shake. Since it is a point-to-point IP connection virtually every IP address
is possible but you must make sure that it is not interfering with the IP set- tings of the
MCIP and your console computer. The default value will work in most cases.
− Modem client IP address: This IP address will be assigned to your console computer
during the PPP handshake. Since it is a point-to-point IP connection virtually every IP ad-
dress is possible but you must make sure that it is not interfering with the IP settings of
the MCIP and your console computer. The default value will work in most cases.