Ethernet Communications

Innovative Products for Ethernet Data Transfer in SCADA Applications

Innovative products for Ethernet data transmission in applications

Ethernet communication Managed and unmanaged switches for Ethernet communication are available. the DSL technology and the tunnelling capability of the serial protocols make it possible to switch directly from conventional serial Voice Frequency Telegram (VFT) transmission to Ethernet communication while retaining the existing copper wires without having to adapt the serial terminals, e.g. for remote control technology.

Features such as Rapid Spanning Tree Protocol (RSTP), bypass circuits such as those found in UMTS or Tetra modems, and the use of optical communication www.cniacs.com lines are also available for increased usability.

Managed Ethernet Switches

Highlights

– Connects over copper wires:

– DSL coverage of up to 20 km based on (S(H)DSL)

– DSL connection via 2-wire at speeds from 192 to 11400 kbps

– Automatic speed adjustment according to line quality

– Compatible with other S(H)DSL modems via IEEE EFM (IEEE 802.3)

– DSL transmission quality (signal vs. noise level) monitoring/messaging

– 560NMS24 can automatically connect lines in case of power failure

– Optical connection:

– SFF slot for insertion of SFP modules

– Supports SFP modules for multimode and singlemode fibre cables

– Transmission speed of 100 Mbps

– Coverage of up to 40 km, depending on the SFP module

– Transmission of serial protocols on up to two serial interfaces

– Point-to-point, split-wire and signal sampling

– Each interface can have a different data rate

– 4-port 10/100 BaseT switch for connecting devices (VLAN assignable)

– Network topologies supported: point-to-point, point-to-multipoint and ring

– Redundant transport routing over copper, optical fibre and bypass circuits to external TCP/IP modems (e.g. UMTS or Tetra)

– Fast Spanning Tree Protocol, link aggregation, VLANs, QoS, port mirroring, static and dynamic routing (RIP)

– Repeater functionality

– Transmission of system events from the switch via IEC 60870-5-101/104

– Configurable alarm relays

– 2 binary inputs/outputs per serial interface (requires external circuitry)

– Configuration via RS232. Simple Network Management Protocol (SNMP), Telnet, Secure Shell (SSH), Web interface, optional login via Radius server

– Easy device replacement via configuration flash drive

– Suitable for harsh environmental conditions:

– High Electromagnetic Compatibility (EMC) safety.

– High electromagnetic compatibility (EMC) safety -25… + 70 °C

– Integrated overvoltage protection

– No fans or moving parts

– Supply voltage: 24…. . 60 VDC