The SCALANCE M874-3 is a mobile wireless router for cost-effectively and securely connecting Ethernet-based subnets and programmable controllers via the 3rd generation mobile wireless network (UMTS) and it supports HSPA+ (High Speed Packet Access). Thus, it allows high transfer rates of up to 14.4 Mbit/s in the downlink and up to 5.76 Mbit/s in the uplink (depending on the infrastructure of the mobile wireless provider).

The SCALANCE M874-2 is a mobile wireless router for cost-effectively and securely connecting Ethernet-based subnets and programmable controllers via the 2nd generation mobile wireless network (GSM) and it supports GPRS (General Packet Radio Service) and EDGE (Enhanced Data Rates for GSM Evolution).

The security of access and communication is ensured by the security functions of the integrated firewall and by VPN tunnels (end-to-end connection encryption through IPsec tunneling).

SCALANCE M812-1 and SCALANCEM816-1 are DSL routers for the low-cost and secure connection of Ethernet-based subnets and automation devices to wired telephone or DSL networks that support ASDL2+ (Asynchronous Digital Subscriber Line). This allows the devices to have high downlink data rates of up to 25 Mbit/s and uplink data rates of up to 3.5 Mbit/s. The security of access and communication is ensured by the security functions of the integrated firewall and by VPN tunnels (end-to-end connection encryption through IPsec tunneling).

The SCALANCE M826-2 is an SHDSL modem for low-cost, secure connection of Ethernet-based subnets and programmable controllers via existing two-wire or stranded cables and supports the ITU-T standard G.991.2 as well as SHDSL.biz (single-pair high-speed digital subscriber line). This gives the device high symmetrical data rates of up to 15.3 Mbit/s per wire pair.

The security of access and communication is ensured by the security functions of the integrated firewall and by VPN tunnels (end-to-end connection encryption through IPsec tunneling).

Note:

Further information on SCALANCE M can be found in Chapter 7, Industrial Remote Communication, under "Remote networks/IP-based modems and routers".