STS


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STS

(Synchronous Transport Signal) The electrical equivalent of the SONET optical signal. In SDH, the European counterpart of SONET, STS is known as STM (Synchronous Transport Module). The signal begins in electrical format and is converted to optical for transmission over the SONET fiber facilities. An STS-1 frame is transmitted in 125ms, yielding raw bandwidth of 51.84 Mbps. The STS frame includes five elements: Synchronous Payload Envelope, Section Overhead, Line Overhead, Path Overhead, and Payload.

The STS-1 frame is the basic building block for SONET, much like the DS1 frame in a T-carrier environment. See OC and SONET.
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References in periodicals archive ?
In Bishop Auckland, STS is working for Sir Robert McAlpine at King James' Academy - famous for being Stan Laurel's school.
Next row re-join yarn at beginning of strap and cast off 23 sts, K to end.
The core of the kit is Ocean Optics' STS micro-spectrometer.
Zeid Shubailat, Country Manager at Microsoft Jordan stated: "We celebrate today our efforts and long-lasting relationship with STS at this fruitful event.
Nigel Randall, non-executive chairman of Surface Technology Systems, said, "For a number of years STS has been dependent on the financial support of SPP.
Before 2005, the STS Arkansas operations had seen a loss or a "modest profit," STS said in the lawsuit.
Thirteen of the 14 isolates from swine infections had STs that were only found elsewhere in strains from pig farmers.
"The new grain platforms, the new STS models, and the new engineering advancements throughout all the machines enable us to offer the market a full range of complete harvesting solutions that provide customers with more choices and even better results," Havens adds.
Many STS users have Parkinson's disease, cerebral palsy, ALS, multiple sclerosis, or muscular dystrophy.
STS is the only way for many people to telephone others not accustomed to their speech.
STS allows people with speech disabilities to communicate by voice through a CA.