USI3500

Low Cost US to Euro ISDN Converter

Product overview

The USI3500 allows a terminal supporting the ETSI Euro-ISDN basic rate protocol to be connected in the United States and to call another unit connected in the same way or to another located in Europe.

The USI3500 allows ISDN secure telephone units that only support Euro-ISDN (such as the UK's BRENT/BRENT2) to be used on both sides of the Atlantic.

By behaving as an American terminal, the USI3500 is able to perform special functions not supported by the ETSI-only devices, such as SPID (Service Profile ID) negotiation. It will then provide a conversion between ETSI Euro-ISDN and the US protocols.

Each port on the USI3500 is configured as an S/T interface; with one behaving as an American 'user' for connection to a standard American NT1, and the other behaving as an ETSI network for connection to your European terminal.

Connection Summary

The US port (port 2) on the USI3500 provides one ISDN S/T USER interface with an RJ45 connector which must be plugged into a North American NT1 (not supplied).

The ETSI port (port 1) provides one ISDN S/T NETWORK interface with an RJ45 socket for connection of an ISDN BRENT secure telephone, a Euro-ISDN terminal adapter (such as the WebWay 850XB with X.21 BRENT) or similar ISDN terminal.

Features and Specifications

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