SMPTE 259M is a standard published by SMPTE which "describes a 10-bit serial digital interface operating at 143/270/360 Mb/s."[1]
The goal of SMPTE 259M is to define a serial digital interface (based on a coaxial cable), called SDI or SD-SDI.
There are 4 bit rates defined, which are normally used to transfer the following standard video formats:
| Variant | Bit rate | Aspect ratio | Total lines (per frame) | Active pixels (per line) | Active lines | Frame rate |
|---|---|---|---|---|---|---|
| SMPTE 259M-A | 143 Mbit/s | 4:3 | 525 | 768 | 486 | 59.94i |
| SMPTE 259M-B | 177 Mbit/s | 4:3 | 625 | 948 | 576 | 50i |
| SMPTE 259M-C | 270 Mbit/s | 4:3 or 16:9 | 525 | 720 | 486 | 59.94i |
| SMPTE 259M-C | 270 Mbit/s | 4:3 or 16:9 | 625 | 720 | 576 | 50i |
| SMPTE 259M-D | 360 Mbit/s | 16:9 | 525 | 960 | 486 | 59.94i |
References[edit]
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction