Description
The model ST-GS221A is a video signal anti-interference device using signal frequency shift technology, The device consists of a transmitter unit and receiver unit. Transmitter unit shift the video signal to less interference frequency band and receiver demodulate signal to original video signal over single coaxial cable. Avoiding low frequency interference in the process of transmission, improving video signal anti-interference capacity, effectively eliminate the problem of image tearing,crosstalk and rolling and etc.The device is built-in lightning surge protection circuit,improve product stability.It is widely used in the video surveillance and control system.
Features
*Power supply: 12V DC;
*Unique technology: using signal frequency shift technology, improve anti-interference capacity;
*Transmission distance: 100-600m;
*Compatibility: compatible with various coaxial cable .including single core, multicore coaxial cable;
*Anti-interference protection: interference rejection, super lightning surge protection. anti-static ,circuit transient impact protection;
*Appearance structure: exquisite craft , support MIT rack, easy installation
Specification
|
Item |
Description |
|
function |
anti-interference mode |
modulation frequency |
|
modulation frequency |
30～40MHz |
|
transmission distance |
100～600m |
|
video connector |
video connector |
female BNC |
|
input signal amplitude |
0.6～1.5V |
|
frequency response |
0～6MHz |
|
input resistance |
75Ω |
|
output resistance |
75Ω |
|
compatible video format |
PAL,NTSC |
|
protection level |
surge protection |
2KV per：IEC 6100-4-5 |
|
ESD |
1a contact discharge level 3
1b air charge level 3
perIEC6 1000-4-2 |
|
operation environment |
operation temperature |
0～55℃ |
|
storage temperature |
-20～70℃ |
|
himidity(non-condensing) |
0～95% |
|
physical properties |
dimension(L*W*H) |
130mm×60mm×25mm（including connector） |
|
shell |
aluminum |
|
color |
black |
|
N.W. |
transmitter：138g, receiver：143g |
|
stsbility |
(MTBF) |
>20000 h | |
