ETIC RAS-E, User Manual, Page: 17 / 132

PRODUCT OVERVIEW
Machine Access Box RAS
DOC_DEV_RAS_User guide_A
Page 17
4.2 Router RAS organisation
The router RAS connects to the devices network (called machine) and on the other hand to the Internet
The router RAS provides two IP interfaces : The WAN interface to reach the Internet and the LAN interface to
connect the machine.
WAN interface :
Depending on the model, the router RAS provides the following interfaces to reach the Internet :
WAN interfaces
RAS-E RAS-EW RAS-EC RAS-ECW
Ethernet
   
Wi-Fi  
Cellular
 
The network connected to the WAN interface is called the WAN network or factory network.
LAN interface :
Depending on the model, the router RAS provides 1 to 4 switched Ethernet ports to connect the devices of
the machine.
That network is called the machine network.
1 serial RS232 and 1 serial RS485 interfaces are provided optionally.
Firewall
The firewall filters data between the WAN interface or any VPN interface on one hand, and the LAN interface
on the other hand.
The firewall filters source and destination IP addresses, but also remote users according to their identity.