ISDN tester
The IBN-5 isdn basic rate access tester reduces the time it takes to install isdn lines and equipment. It enables the user to select parameters whose values can be modified at the time of testing. So/To and U measurement interfaces are included. The 240 ¥ 45 ¥ 55-mm unit tests the quality of an isdn access in self-call mode or through end-to-end measurements. Operational range is -5° to +50°C.
Wandel & Goltermann GmbH & Co., Eningen, Germany