View tb205a datasheet:

May 1997 TB 205 Testboard for SLIC PBL 3762 A/X, 3764A/X Testboard TB 205 offers a complete Subscriber Line application, equipped with all the essential components, to get an easy access to analogue or digital line card design. The SLIC includes all standard BORSCHT functions like two-to-four- wire, four-to-two-wire conversion, DC- feed and signalling. Impedance levels on the testboard are designed with American µ-law PCM PABX linecard in mind. It may therefore be necessary to exchange some external components to modify performance in order to comply with local requirements. Key Features • Ready to use upon delivery • Only 3 voltages necessary VBat, +12 V, -12V, for operation • TISP - transient protection • Extensive programmability • Small space hybrid Ring tri