4210 Triconex Remote Extender Modules
The Invensys Triconex 4210 is a remote extender module with redundant fiber optic links between a Triconex TMR SRXM and up to three remote sites. It supports up to 7.5 miles (12 km) and includes PASS, FAIL, ACTIVE, TX, RX1, RX2, and RX3 diagnostics.