CH Tech EM405D user manual telnet x.x.x.x

Models: EM405D

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4.2.6.1Wed-based Configuration

To use the wed-based interface to configure the wired EM405D, open a Java enabled web browser and enter the device’s IP address as the web address to open. This will download and run a Java applet from the device allowing the user to make changes to the devices configuration. Navigate through the pages of the web interface making the necessary changes to the configuration. When finished, click on the “Update Settings” button to apply the changes.

Note: If the web page does not display or operate correctly, there may be some incompatibilities between the Java applet and the Java run-time environment on the PC. This is especially true for users using Microsoft Internet Explorer and the Microsoft Java Virtual Machine. It is recommended that the user download the latest Java runtime environment from www.java.com and disable the Microsoft Virtual Machine. The java applet served by the wired EM405D is compatible with Java 1.3.1x or higher.

4.2.6.2Telnet Configuration

To use the telnet interface, open a telnet session to port 9999 at the device’s IP address. In Windows, this can be done by opening a command prompt window or going to Run under the Windows Start menu and in both cases typing the following, where x.x.x.x is the IP address:

telnet x.x.x.x 9999

PC’s running environments other than Windows may require a different instruction but the concept remains the same. Once a telnet session is opened, the screen will display the configuration utility. Navigate through the various menu items and follow the instructions to configure the module. The configurations are not applied until the telnet session is exited with the Save and Exit menu item.

4.2.6.3Configuring a Device with an Unknown IP address

To configure the device through either the web-based interface or the telnet interface, the EM405D must be connected to a network and have a valid IP address known to the user. This creates an obvious dilemma. How do you configure a device via the network if it is not configured for the network? The EM405D provides a method to overcome this dilemma using a process sometimes referred to as address “gleaning.” This method uses the Address Resolution Protocol (ARP) and telnet to assign a temporary IP address to the device. This temporary address can then be used to connect to the web-based interface or the telnet interface to configure the device for the network. To assign a temporary IP address to a device using this method:

1)Locate the device’s hardware (MAC) address and write it down. The address is displayed on a label inside the EM405D’s cover. View the label by removing the two screws at the front of the module, removing the front panel, then sliding the top cover of the enclosure forward, exposing the rear section of the PCB. The MAC address can be found on the device that the Ethernet cable physically plugs into. It is a six part number

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CH Tech EM405D user manual telnet x.x.x.x