| | | • Handheld, battery operated, data and PCM rate tester • Framed and unframed operation at 2 Mbit/s including n x 64 kbit/s • Data test interfaces: RS-232, X.21 (X.24), V.35, RS-449 (V.36), codirec- tional, contra-directional including X.21 monitoring • Two receiver clock slip measurements •Sa bit monitoring • G.821, G.826, M.2100 analysis • Histograms for error distribution and alarms • Print from up to 8 results stores • Analog channel generation and measurement • Measurements include frequency deviation, frequency and level measurement, propagation delay, output level attenuation, and CAS Two instruments in one QUICK menus allow single page set up and test for quick and easy installation and maintenance measurements. STANDARD menus give comprehensive facilities for detailed testing, fault localisation and analysis ofnetwork systems and equipment. | | General The 2842 2 Mbit/s Transmission Analyzer is a hand-held analyzer for installation and maintenance measurements on digital 2 Mbit/s lines and equipment. The 2843 Digital Communications Analyzer adds data interface testing to this 2 Mbit/s capability. The comprehensive measurement capability is contained in a compact, battery operated package, combined with a large graphics based LCD for ease of setup and results retrieval. QUICK menus and configuration stores ensure fastest possible set up and test. FRAMING SYSTEMS 2 Mbit/s framing systems with 30 and 31 channels, with and without CRC4, are generated and received to enable a range of tests on framing, alarms and signalling. 64 kbit/s Channel Testing Individual channels can be tested at 64 kbit/s, assisting in testing and fault location within digital data networks and cross connect switches. n x 64 kbit/s Channel Testing n x 64 kbit/s channels can be tested where they are carried within 2 Mbit/s digital signals. Full flexibility is provided with both contiguous and non-contiguous channel selection. DATA INTERFACE TESTING (2843) 2 Mbit/s and data circuits and equipment can be tested in a fully integrated test instrument, with mixed mode data and 2 Mbit/s testing possible for maximum flexibility. Data test interfaces provided are RS-232, X.21, V35, RS-449 (V.36), codirectional and contradirec-tional. Modes Both synchronous and asynchronous modes are possible with a wide | | |