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The HP 37704A is a comprehensive, field-portable, SONET, DS3, and DSI test set for applications up to 622 Mb/s (STS-12). It provides generation and analysis of VT (DSl) and DS3-mapped SONET signals, with full control of section, line, and path overhead bytes. Plug-in modules provide connection to a range of optical and electrical interfaces. Errors, alarms, and T1X1 pointer movement sequences are generated to stress equipment up to and beyond ANSI standards. Frame Formats: DS1, DS3, STS-l, STS-3, and STS-12. Mappings: DSI (all VT1.5 modes) and DS3 to ANSI T1.105 and Bellcore TA-TSY-000253. Test Interfaces; Optical: 51.84, 155.52, and 622.08 Mb/s (1310 nm). Coded electrical: 1.544 (B8ZS), 44.736 (B3ZS), 51.84 (B3ZS), and 155.52 (CMI) Mb/s
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