ISDN ANALYZER D1080 - messkom.de

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ISDN ANALYZER D1080 USER’S MANUAL REV. 5 In Primary Access the quality tests can be executed while several calls to the network are active (see Paragraph 11.1.7). This makes it possible to check if the problems are due to specific channels or heavy traffic. While executing the quality tests, the instrument can receive and loop incoming calls (see Chapter 6). ! In the SETTING UP menu the CallsRx field can be 146 configured with: NOT ACCEPTED ONLY COMPATIBLE ALL ACCEPTED The field must be set with ONLY COMPATIBLE or ALL ACCEPTED in order to loop the incoming calls. 12.2.1.1. 64 kb – one B channel This makes it possible to test a single network section and identify the “noisiest” path. It is an “User-User” test. Two modes are available: by using a remote loop box. The received data is the sum of the transmitted and the received data. The operator can determine if the network section is noisy, but he does not know if the upstream connection is noisier than the downstream connection, or vice versa. CHAPTER 12. ISDN TERMINAL SIMULATOR
USER’S MANUAL REV. 5 ISDN ANALYZER D1080 D1080 OUTGOING PRBS GEN PRBS MIS Bx Figura 12-33 LOOP BOX by using a remote D1080. This makes it possible to establish both the general data of the connection and the direction with more errors. One D1080 must be set with OUTGOING call and the other with INCOMING call. CHAPTER 12. SDN TERMINAL SIMULATOR 147
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