The intrinsically safe hazardous area certification permits the
components to be mounted in a Zone 1 hazardous area with connectivity
into Zone 0 and the associated apparatus certification of the 9468-ET IS
Ethernet isolator and 9491-PS IS power supply allow this equipment to
be mounted in a Zone 2 hazardous area and connected to intrinsically
safe equipment in a Zone 0 or 1 hazardous area.
In Process Automation it is also preferable to use a single cable to provide both power and communications to the end device. The 9460-ET range can deliver Intrinsically Safe Power over Ethernet (PoEx™) with a single Cat 5e or Cat 6 cable, allowing live connection and disconnection of the end device in Zone 0 and 1 hazardous areas.