1KHW002601R0001 TEPI1 R1D interface module

The TEPI1 interface is part of the utility grade universal multiplexer FOX615 which provides specific solutions for
power utility applications. TEPI1 has been specifically designed for distance protection applications. Therefore it
provides exactly the features required by the application and fulfils the relevant teleprotection product standards such as
IEC 60834-1 and IEEE 1613 as well as EMC standards EN 61000-6-3 and EN 61000-6-2. The highly integrated FOX615
solution with TEPI1 for distance protection application provides many benefits for power utilities such as fast alarming in case
of problems, full remote configuration and control possibilities using the network management system and higher availability
due to less individual boxes and redundant channel routing

1KHW002601R0001

Interoperability with FOX515
The four TEPI1 teleprotection commands are fully interoperable with FOX515 TEBIT. This means that an extension of a FOX515 network is easy possible by just adding a FOX615
with TEPI1. The performance of your teleprotection application is fully guaranteed.
TEPI1 architecture
The TEPI1 is part of a large complement of interface modules which can be plugged into a FOX615 shelf. Like all FOX615 modules TEPI1 is:
– powered from the FOX615 shelf
– configured by FOXCST
– supervised by FOXMAN-Management system
Two front connectors provide access to the teleprotection and general purpose (binary) inputs and outputs. The same are
galvanically isolated and provide highest EMC immunity for harsh environment. TEPI1 includes a non-volatile event recorder with an

outstanding accuracy, which can be synchronized by GPS (Global Positioning System).