DeltaV LSN20 Safety Switches

Installation notes

• The LSN20 Safety Switches are used exclusively on the Local Safety Network (LSN).
  Important

  Only DeltaV Safety Switches (LSN20 and SRM100) and DeltaV SIS nodes are supported on the Local Safety Network.

• DeltaV LSN20 Safety Switches have eight ports. Two ports on each switch are fiber uplink, twisted pair uplink, or a combination of fiber and twisted pair uplink ports. The remaining 6 ports are 10/100mb/s twisted pair.

Port information

Table: Port information for the DeltaV LSN20 Safety Switches

Model	Number and types of ports	Port layout
LSN20-6TX2TX LSN20-6TX2TX-ES(1)	8, 10/100mb/s RJ45 twisted pair ports
LSN20-6TX2MM LSN20-6TX2MM-ES (1)	6, 10/100mb/s RJ45 twisted pair ports 2, 100mb/s multimode fiber uplink ports (SC connectors); full duplex
LSN20-6TX2SM LSN20-6TX2SM-ES(1)	6, 10/100mb/s RJ45 twisted pair ports 2, 100mb/s single mode fiber uplink ports (SC connectors); full duplex

⁽¹⁾ The ES version of the switches have an extended temperature range and conformal coating.