HD SDI / HDcctv Tutorial
Want megapixel but don't want IP? That's the promise of HD SDI / HDcctv. In this tutorial, we examine what it is, how it differs from IP Megapixel and the key factors impacting its use including backwards compatibility, product availability, VMS integration and feature tradeoffs.
[Important: Contrast / compare to Analog HD offerings like HDCVI and HDTVI.]
Analog ******
*********** ****** **** ******* ****** ******* megapixel. *********** ** **** / *** standards, *********** ******* *** ******* ** standard ********** (********* ********** ** *** x *** ** ~*.* *********). ** get *********, ***** ******* **** ** ** replaced. ** ****, **** *** ************** been **** ** ***** ********* ** cameras.
HD ***
***** ********* ** ******* ****** ***** inside *** ******,** ********** *** ******** ************ ******* ***** digitally. ******* ***********, ** *** *** directly ******* ** ******* *****, **** analog ******* *** ****** ** ***** typically **** *** ******* ** ********** adapters *** ****.
** *** ***** ***** *** ******* and ******** ** **** ** ***** servers / ******** **** **** ****** cameras. *******, *** ****** ******** ******* them ** * ** ** *** as *** *** **** ** *******.
HD *** ** ******
******** * ***** ***** **** ** attempting ** ******* / ********** **-*** for ************. ********* *.* *************** ****** **-*** **** * ***** of ********** / **************** *******. ** 2013/2014, *** ****** ********, *** ********* by *****, ** ********* / ********** a *** **-*** *********** ***********.
Advantages ** ** *** / ******
*** ********* *** *** ********** ** ** SDI / ****** **** ********* ** *******:
- ** ******* ************* ******: ****** ** cameras, ** *** ******** ** ** address, ** ******* *********, ** ********, etc.
- ******* *** *** ******* *****: ******* it ** ******* ** ********** ****** camera, ******* *** **** ******** *** new ****** *** ******** *****.
- **-**** ******* *****: ***** **** *********** have ******* ***** ** *****, **** allows **** ** **-*** ***** ***** (presuming *** ***** ** *** ******** and ** *** *** ****).
- ****** ******* **** *******: ***** ** SDI ***** ** *********** ************, ** it ** ********* ******** ** * monitor, *** **** **** ******* **** be ******** ** ** ***** ********** MP ** ******.
- ***** *******: *****, ***** ** *** video ** *********** ************, ******** ********* PTZs ****** **** ****** *******, *********** much ******** **** ** ************.
*******, ** *** / ****** ***** and ***** **** *********** ************ *******, making **** **** *********** *** ***** with *********** ******** *********** **** ******.
Disadvantages ** ** *** / ******
** *** ***** ****, ** *** / ****** **** * ****** ** key ************* ******** ** ********* ** cameras:
- ***** **********: ********* ** ******* *** commonly ********* ** ***, *** *** 10MP+ ****** ***** ** *** ** only ********* ** ***** / ***. While ***+ ** ****** ******* *** rapidly *********, ** *** **** ****** at *** *** ***** ** ****.
- ******* ******* ************: ******* ***** ********* for * *****, ** *** *** only * ******** ** *** ******* available ** **** ********* **. *** limitations ** ****** **** *******, ****, matrices *** ***** ***** **** (*.*., 16 ****** *****) *** *******.
- ******** *** ********: ** *** ** not ********* ********** **** ****** *********, requiring * *** ********. ******* *********, dedicated ***** *** ****** *** ** SDI *** ****** ******* ******** ***** from ****** *** *** ** ****** adding ** *** ** *** ******.
- **** ******: ** *** ****** *** recorder ***** *** ********* ****** **** megapixel ** + ***, ******** *** motivation ** ******.
- ******* ***** *******: **** *** *** brands ******* ** ***, **** ***** incumbent **** ********* (******* **** *****, Honeywell, **********, *****, *********, ****, ***.)
- ** **** *******: ** *** *******, by ******, ****** ******* **** *******, one ** *** ******* ******** ****** in *** ********.
- ** ********* *** ***********: ***** ********** Software (**** *********, *******, ***.) *** only ******* ** *** *** ******** (that *** **** ****) ** ******* support ** ******** ** *** ********* (**** **** rare).
Future ****
** *** *** ***** ***** ***.
*******, ***** ***-** ********* ********* *** gaining ********. ******* / ******** ******** ** ************.
[**** ** ** ****** **** ******** of * ******** ***** ********* ** 2012.]