Description Of The Router - Advantech ER75s User Manual

3. Description of the router

EDGE router is a compact electronic device based on the module which enables data
transfers using GSM, GPRS and EDGE technologies. Primarily, the router expands the capa-
bilities of the module by the option of connecting more PCs by means of the built-in Ethernet
interface. In addition, the firmware of the router provides automatic establishment and main-
tenance of GPRS connection. By means of integration of a DHCP server it provides the users
with simple installation and Internet access. In addition, the router is equipped with a USB 2.0
Full Speed interface which is designed only for connection to a PC with Windows 2000, Win-
dows XP, Windows Vista or Windows Seven operating system. EDGE router is only available
in one basic version called ER75s. Allows user to use one SIM card to connect to the GSM
network and is embedded in a plastic box.
Configuration is done via web interface protected by password. The GPRS/EDGE router
supports creation of VPN tunnels using technologies IPsec, OpenVPN and L2TP to ensure
safe communication. Web interface provides detail statistics about the wireless router activi-
ties, signal strength, detailed log, etc. Router supports functions: DHCP, NAT, NAT-T, DynDNS,
NTP, VRRP, control by SMS and many other functions.
Other diagnostic functions ensuring continuous communication include automatic inspec-
tion of PPP connection offering an automatic restart feature – in case of connection losses,
or hardware watchdog which monitors the status of the router. With the help of a special win-
dow (start up script window) you may insert Linux scripts for various actions. For some appli-
cations the key option to create several different configurations for one wireless GPRS/EDGE
router, the so-called profiles (maximum of 4), and the option to switch between them (for exam-
ple via SMS, binary input status, etc.) is essential. Cellular wireless routers may automatically
upgrade configuration and firmware from server. This allows mass reconfiguration of many
routers in one time.
Examples of possible applications:
mobile office
image transmission
security systems
telematics
telemetry
remote monitoring
monitoring of traffic information
vending and dispatcher machines
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ER75s