Method of encoding 8-bit data into a 10-bit form to ensure data is constructed of equal 1s and 0s. Used in high-speed clock data recovery (CDR) data transmissions to ensure data transition density, clock integrity, and DC balancing.
Special code or comma transmitted to show start of data in a serial stream. Used by the receiver to re-align the data.Attenuation
Reduction of signal amplitude that is commonly caused by the length a signal is required to travel.
Fast Fourier transform.FR4
Standard laminate used in the construction of PCBs and backplanes.
Just a bunch of drives. Storage network term for a disk drive or number of disk drives mounted within their own enclosure but without any control processor.Jitter
Time delay between the expected signal transition and the actual transition.
The percentage a waveform rises above its upper determined value before setting at the correct value.
Addition of passive components onto the transmission line to ensure impedance matching between transmitter, receiver, and transmission line.TIA
Telecom Industry Association. Communication standards organization.
The percentage a waveform falls below its lowest determined value before setting at the correct value.
Wide area network. A communications network used to connect a number of LANs together.Wander
Similar to jitter. Long-term variation of a digital waveform from its original transmitted state.