A flexible, modular design allows these switches to support a wide range of different network architectures. It also allows speeds of up to 1 Gbps, as required in high-end process bus applications. The S20 is a fully Gigabit Ethernet switch. It supports up to 24 ports in 6 interface modules with 4 ports each. This model supports PTP (Precision Time Protocol) IEEE1588v2. The T1000 switch model supports up to 12 field replaceable ports with PTP (Precision Time Protocol). It also supports Rack, panel and DIN mounting.
IEDs can be time synchronised over the Ethernet network to an accuracy of less than 1us using PTP protocol. The switches can be set to operate as either a Transparent Clock or Boundary Clock. Also the internal NTP server provides a time reference to non-PTP aware relays.
Packet switching is implemented completely in hardware to ensure reliability and accuracy. This applies even when using a mixture of different copper and fibre interfaces.
The S20 & T1000 switches can be configured and managed cyber-securely using an SSH command line interface or an HTTPS graphical interface. Both switches support RADIUS and TACACS+ remote authentication technology. Statistical management information can be accessed using SNMP v2/v3.