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Digital Signal 1 (DS1, sometimes DS-1) is a T-carrier signaling scheme devised by Bell Labs. [1] DS1 is the primary digital telephone standard used in the United States , Canada and Japan and is able to transmit up to 24 multiplexed voice and data calls over telephone lines.
The Synchronous Transport Module, level 1 (STM-1) frame is the basic transmission format for SDH—the first level of the synchronous digital hierarchy. The STM-1 frame is transmitted in exactly 125 μs , therefore, there are 8,000 frames per second on a 155.52 Mbit/s OC-3 fiber-optic circuit.
Office Open XML (OOXML) format was introduced with Microsoft Office 2007 and became the default format of Microsoft Excel ever since. Excel-related file extensions of this format include:.xlsx – Excel workbook.xlsm – Excel macro-enabled workbook; same as xlsx but may contain macros and scripts.xltx – Excel template.xltm – Excel macro ...
The DS technically refers to the rate and format of the signal, while the T designation refers to the equipment providing the signals. In practice, "DS" and "T" are used synonymously; for example, DS1 and T1, DS3 and T3. [1]
DS1 or DS-1 may refer to: BOSS DS-1, a guitar distortion pedal; Digital Signal 1, a T-carrier signaling scheme devised by Bell Labs; Deep Space 1, a mission to 9969 Braille & 19P/Borrelly; DS-1 (drug), a selective GABA A α4β3δ agonist drug; South African Class DS1, a diesel locomotive class; Datsun DS-1, a car by Nissan, see Datsun DS Series
Besides differences in the schema, there are several other differences between the earlier Office XML schema formats and Office Open XML. Whereas the data in Office Open XML documents is stored in multiple parts and compressed in a ZIP file conforming to the Open Packaging Conventions, Microsoft Office XML formats are stored as plain single monolithic XML files (making them quite large ...
EDI provides a technical basis for automated commercial "conversations" between two entities, either internal or external. The term EDI encompasses the entire electronic data interchange process, including the transmission, message flow, document format, and software used to interpret the documents.
Using the Telcordia standards for circuit naming allow a LEC the ability to build a certain amount of intelligence into the name of a circuit. The way Telcordia has developed circuit IDs, different types of circuit connections require different formats for the circuit ID. In each format, different segments of the ID have very specific meaning.