MINNEAPOLIS -- Transition Networks Inc., the conversion technology expert, a wholly owned subsidiary of Communications Systems, Inc. (AMEX:JCS), today announced that delivery of Ethernet Private Line (EPL) and Ethernet Virtual Private Line (EVPL) services have been certified by the Metro Ethernet Forum (MEF) on the 10/100 Ethernet to fiber xFBRM and 10/100/1000 Ethernet to fiber xBFFG families of remotely managed media converters. The products were tested by Iometrix test laboratory and have been certified to comply with the requirements of the test plans for MEF 9 and MEF 14.

"We continue to expand and enhance our portfolio of media conversion technology to offer service providers a remotely managed end-to-end solution," said Bill Schultz, vice president of marketing at Transition Networks. "We are pleased to achieve MEF 9 and MEF 14 certification for the metro Ethernet services offered by the 10/100 Ethernet xFBRM and 10/100/1000 Ethernet xBFFG product families."

The MEF Carrier Ethernet Certification Program is designed to ensure that global equipment and services comply with MEF standards and pave the way for interoperability. MEF 9 tests the conformance of Ethernet Services at the User-Network Interface (UNI) where the Subscriber and Service Provider portions of the network meet. It also defines a series of tests to verify that Services delivered to the Subscriber across the UNI are conformant to MEF technical specifications. MEF 14 defines the requirements and corresponding test procedures for Service performance and Bandwidth Profile Service Attributes that may be specified as part of a Service Level Specification (SLS) for an Ethernet Service.

Transition Networks Inc.