Hirschmann OZD Profi G12 ATEX repeater range

Belden Singapore has launched the Hirschmann OZD Profi G12 ATEX, Profibus FO repeaters certified for use in hazardous locations, zones 1, 2, 21 and 22. The optical ports are intrinsically safe and have got op-is approval.

With a transfer rate of up to 12 Mbps, they are available with a stainless steel or plastic housing. The optical function module, which has its own Ex approval, is also available without a housing. This enables it to be installed in the same housing as other components. The optical performance of the FO repeater can be monitored using signal strength outputs which can be integrated in the process control system.

As the devices also support ring redundancy, it is now possible to implement Profibus networks using ring or line topologies in potentially explosive environments such as those found in the oil and gas sectors and in some areas of the food industry.

The repeaters have two optical and one electrical port. These are designed as Ex-e terminals, as are the connections for the error relays, measurement signals and redundant 24 V power supply.

Bus termination and monitoring of signal quality can be activated via an integrated switch. Installation and on-site maintenance are aided by LEDs which indicate link status, data transfer activity and error situations.