Digicom ED-20 PPP Functional description, Application mode, About PPP, Network interfaces

Page 14

7. Functional description

The ED-20 can be in either configuration mode or in application mode. Normally the ED-20 is in application mode, where the serial-to-network data transfer is enabled and all configuration settings are readable.

Change of configuration parameters are done in ED-20 configuration mode. Configurable

parameters are listed in chapter 6.3.

7.1 Application mode

In application mode the ED-20 transfers data between the serial interface (CH1) and the network interface (10BaseT). At the network interface data is transferred using the TCP/IP protocol suit. At the serial interface data is transferred using PPP.

7.1.1 About PPP

PPP(the Point to Point Protocol) is a mechanism for creating and running TCP/IP over a serial link – a direct serial connection or a link made using one of following: Westermo analogue PSTN-, Leased-line-, ISDN-, GSM-, Radio-, Fibre- or Short-haul modem.

Other computers can connect via the ED-20 and communicate over the PPP link using FTP,Telnet,Web, etc. in the same manner as with an Ethernet TCP/IP link. One major difference between a PPP and an Ethernet connection is of course the speed. A standard Ethernet connection operates at 10 Mbs maximum theoretical throughput, whereas an analogue modem operates at speeds up to 56 kbps.

PPPis strictly a peer to peer protocol; there is no difference between the machine that dials in and the machine that is dialed into. However, it is still useful to think in terms of servers and clients.When you dial into a site to establish a PPP connection, you are a considered the client.The machine to which you connect is considered the server. Authentication is provided with the protocols PAP and CHAP.

7.1.2 Network interfaces

ED-20 has two network interfaces, Ethernet and PPP, so the unit can forward IP-packets between these interfaces.

7.1.2.1 Ethernet connection

This interface is a part of the local network and the ‘Local IP Address’* and ‘Subnet Mask’ must be set to the right ‘Network ID’

*The IP address must be compliant to the attached network. Ask the network administrator when in doubt.

14

6609-2221

Page 13 Page 15
Image 14
Page 13 Page 15
Contents PPP 6609-2221Contents Installation SafetyBefore installation, maintenance or modification work ApprovalsDeclaration of conformity Declaration of ConformityIntroduction Specification Transient Protection ConfigurationIndicators LED ApplicationMounting /Removal MaintenanceInstallation Received Data ConnectionsOut Transmitted Data CH1 RS-232 Connections, DCE CH2 RS-232 Connections, DCEED-20 working mode LED Indicators From left to rightPower Transmitted Data incoming serial dataDIP Swiches is not used in this product, leave as it is Factory settingsDIP Switch Settings System Requirements Installation of ED-Tool for ED-20MAC address MinimumAbout PPP Application modeFunctional description Network interfacesBrouter function Configuration modePPP connection Firewall functionTypical configuration procedures ConfigurationConfiguration by ED-Tool for ED-20 Program StartSerial Interface Channel 1 specific commands ED-Tool for ED-20 commandsGeneral commands Selects type of connection, Serial or over the NetworkModem Settings Modem Hangup Modem AT-Commands16 17 18 Modem Init Modem Connect Dial OutPassword Set the login password Network SettingsLogin PPP Network InterfaceBrouter Settings Brouter SettingsBrouter Mode Firewall Settings Firewall SettingsFirewall Mode IP AddressAllowed values LL, Pstn Default Pstn Default 57 600 bit/sAllowed values None, RTS/CTS Default RTS/CTS Allowed valuesConnect at PWR on Allowed values NO,YES Default noDial IN/OUT DCD ControlAllowed values, 0, 1 to Default 0 function disabled Default +++Default 2 seconds Default AT&F&D0S0=0&K3+MS=V34&WDefault Ring Default ATHDefault Connect Allowed values NONE, PAP, Chap Default None Default ATAAllowed values Default UsernameRemote address 0.0126.0.0.0 128.1.0.0 192.0.1.0 DefaultLocal IP Subnet MaskBrouter Settings IP Address Refer to .2.2 General Modem settings and Dial IN/OUTDefault Off Firewall Settings IP AddressRemote connection LAN Dial Example of application with IP address settingsApplication examples LAN LAN Leased LineLAN LAN PSTN, Brouter, Firewall T03-03766609-222103.06 Mälartryck AB, Eskilstuna, Sweden

ED-20 PPP specifications

The Digicom ED-20 PPP is a sophisticated and versatile device designed to provide seamless communication solutions for both personal and professional use. As a cutting-edge platform for Point-to-Point Protocol (PPP), the ED-20 facilitates efficient data transmission over various communication networks, enhancing connectivity while ensuring security and reliability.

One of the main features of the Digicom ED-20 PPP is its robust support for multiple network technologies, including ISDN, dial-up, and broadband connections. This flexibility allows users to connect seamlessly to the internet or private networks, adapting to various scenarios and ensuring that they remain connected regardless of the circumstances. The ED-20's capability to support diverse communication methods makes it an ideal choice for businesses and individuals who require reliable data access.

The ED-20 excels in providing efficient data compression and error correction mechanisms. By employing advanced algorithms, it minimizes data payloads and enhances the speed of transmission. This feature is particularly beneficial for environments with limited bandwidth, as it allows users to optimize their data usage without sacrificing performance. The device’s ability to maintain high-speed communication even in challenging conditions highlights its technological prowess and adaptability.

Another hallmark of the Digicom ED-20 PPP is its easy-to-use interface and setup process. Designed with user experience in mind, the device requires minimal technical knowledge to configure and operate. This user-friendly approach ensures that even those unfamiliar with network technologies can benefit from its advanced features without a steep learning curve.

Security is paramount in today’s digital landscape, and the ED-20 PPP incorporates multiple security protocols to safeguard data transmission. By utilizing encryption and authentication techniques, the device ensures that sensitive information remains protected during transfer, making it an indispensable tool for organizations handling confidential data.

In terms of physical characteristics, the Digicom ED-20 PPP is compact and designed for portability, making it suitable for a variety of environments, including remote work settings and traveling professionals. Its durable construction guarantees longevity, while its lightweight design enhances mobility.

Overall, the Digicom ED-20 PPP stands out as a reliable and feature-rich solution for diverse communication needs, combining flexibility, efficiency, and security in a single device. Whether for business or personal use, the ED-20 effectively meets the demands of modern connectivity.
Top Page Image Contents