SIEMENS
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Siemens IK PI · 2015
Industrial Remote Communication
Remote Networks
IP-based modems and routers
SCALANCE M826-2 SHDSL router
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Overview
The SCALANCE M826-2 is an SHDSL modem for low-cost,
secure connection of Ethernet-based subnets and program-
mable 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).
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Benefits
•
High security standards by means of a firewall (Stateful Packet
Inspection) and VPN connections (IP-Sec) as an integral
component of the Industrial Security concept
•
Low investment and operating costs for operator control and
monitoring of remotely connected substations
•
Protection of investments: Continued use of existing cable
infrastructure for Ethernet transfer up to a distance of at least
10 km
•
Simple and low-cost migration from classical remote commu-
nication to IP-based remote communication
•
Alternative use instead of optical communication for Ethernet
transfer over long distances using two-wire lines
•
Improved manageability thanks to mechanical integration due
to the design (module format) with S7-1500 / ET200MP
•
Wide application area thanks to large bandwidth, high perfor-
mance and speed
•
Worldwide application
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Application
The SCALANCE M826-2 can be used in industrial and semi-
industrial applications:
•
Remote programming and servicing, e.g. using STEP 7 via
two-wire lines
•
Connection of static stations for controlling and monitoring
such things as
- Water/wastewater treatment plants
- Oil and gas supplies
- District heating networks
- Power distribution
- Pumping stations
- Transportation systems
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Design
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The rugged plastic enclosure supports the following mounting
methods:
- S7-1500 mounting rail
- S7-300 mounting rail
•
DIN rail mounting
- Wall mounting
•
4 x RJ45 interfaces with 10/100 Mbit/s for Industrial Ethernet
•
Diagnostic LEDs for modem status, connection control, and
DI/DO channels
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SET button
•
5-pole screw terminal for redundant connection to the
24 V DC power supply
•
2-pole screw terminal for a digital input
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2-pole screw terminal for a digital output
•
2 x 2-pole screw terminal for connecting to one twin wire each
for SHDSL communication
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Function
•
Automatic setup and maintaining of IP-based connection via
two-wire lines
•
Merging of distributed, IP-based networks via two or multi-wire
line infrastructure
•
Bi-directional IP-based data communication with a telecontrol
center, e.g. ST7cc or ST7sc, WinCC or PCS 7
•
Integrated security functions with firewall (Stateful Inspection)
•
Integrated IPsec VPN tunnel encryption
•
Data exchange between telecontrol stations (slave-slave
communication) via a TIM communication module in the
service center
•
Secure data communication with the SINAUT ST7 stations
© Siemens AG 2014