Sixnet introduces fault-tolerant Ethernet switch with nine ports

Sixnet recently introduced its ET-9RS Real-Time Ring Ethernet switch, which is priced the same as its original industrial switches, but includes many more features.

By Control Engineering Staff April 7, 2005

Sixnet recently introduced its ET-9RS Real-Time Ring Ethernet switch, which is priced the same as its original industrial switches, but includes many more features. The company says ET-9RS delivers reliability and performance via ultra-fast, fault-tolerant network redundancy and other features, which makes it ideal for programmable logic control (PLC) and other automation systems.

Real-Time Ring is self-configurable, and reportedly runs without the complex configuration steps required by other alternatives. It provides a recovery time of less than 5 ms per hop, and allows more than 50 switches to be connected in a ring. Sixnet says these features are essential for real-time, deterministic control, and distributed systems. ET-9RS provides networking features, such as priority queuing for real-time performance, and port mirroring for advanced diagnostics. Messages get filtered to prevent broadcast storms, and there are reportedly no delays with store and forward wire-speed (non-blocking) switching.

Sixnet adds that its switches offer a 20-year support policy and more than 1 million hours mean time between failures (MTBF). In addition, the product is UL, CSA, and CE certified; has marine and hazardous ratings; MIL-STD-1275 surge protection; and a -40 to 85 °C standard operating temperature range.

There are several Real-Time Ring models that offer different combinations of copper and fiber-optic ports, for connections up to 40 km or more. The switches can be ordered pre-configured for true plug and play operation, or field configured with an easy-to-use Windows utility.

Jim Montague, news editor, Control Engineering, jmontague@reedbusiness.com