Sons of the American Revolution.
(1) (Specific Absorption Rate) A unit of measurement of the rate that energy is absorbed into the body. The SAR rating is watts per kilogram of human tissue. In the U.S., the maximum allowed SAR for a cellphone is 1.6. While some phones are as low as 0.2, many high-end smartphones are just a hair under 1.6. See electromagnetic hypersensitivity.
In the ATM reference model, a sublayer of the ATM Adaptation Layer (AAL) that functions to segment the user data into payloads for insertion into cells, prior to transmission. At the receiving end of the communication, the SAR extracts the payload from the cells and reassembles the data into the information stream as originally transmitted. See also AAL, ATM reference model, cell, and payload.