Toronto, Canada GAO Instruments ( recommends this compact data communication tester, which is a multi-purpose instrument intended for the maintenance and trouble-shooting of digital networks. The portable tester is used to carry out both framed and unframed tests on equipment such as primary multiplexers, digital cross connect systems, automatic protection switches and circuits operating at a data rate of between 50bit/s and 2048kbit/s.
This data communication tester, model A0300002, integrates interfaces of V.24, V.35, V.11, X.21, G.703 Co-dir 64kbit/s and G.703-2Mkbit/s and can emulate a DTE or a DCE; data can be transmitted synchronously or asynchronously on each interface. The tester generates and monitors PCM30, PCM30 CRC and PCM31 and PCM31 CRC frame structures on G.703-2Mbit/s interface. In general, it provides an error analysis function featuring a display of histograms of errors or alarms; test results are saved to an onboard memory, and accommodations for future interfaces have been reserved.
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About GAO Instruments
GAO Instruments is a leading provider of telecom instruments testers, optical and electronic measurement instruments, and other electronic products that serve the needs of electronic professionals internationally.

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