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PoE 802.3at - data and power transmission standard
VIDEO BALUN PFM800-4MP DAHUA
DESCRIPTION The PFM800-4MP is designed to video signal transmission via twisted-pair cable. The device adapts the impedance of coaxial cable 75Ω to the impedance of symmetrical line, ensuring transmission of video signal up to 400m (twisted-pair cable category 5) and eliminates asymmetric interferences.
It is important to pay attention to linking the adequate terminals: (+) and (-). Reverse connection would cause distortion of image.
SPECIFICATION
In package :
2 pcs The price for package
Standard :
AHD - 5 Mpx , HD-CVI - 8 Mpx 4K UHD , HD-TVI - 8 Mpx 4K UHD , CVBS - PAL , NTSC
Device type :
Passive
Number of channels :
1
Video transmission range :
250 m @ 720p - UTP cat. 5e 150 m @ 1080p - UTP cat. 5e 400 m @ CVBS - PAL / NTSC - UTP cat. 5e
Attenuation :
4.43 MHz @ 4.45 dB 11 MHz @ 4.82 dB 21 MHz @ 5.76 dB 38 MHz @ 7.41 dB 42 MHz @ 7.65 dB 67.5 MHz @ 7.51 dB The attenuation applies to two devices connected to each other
CMRR (dB @ 5MHz) :
> 60 dB
Coaxial socket impedance :
75 Ω
Symmetrical socket impedance :
100 Ω
Coaxial socket type :
BNC - Plug with cable
Symmetrical socket type :
Spring terminals
Operation temp :
-10 °C ... 55 °C
Permissible relative humidity :
< 95 %
Weight :
0.021 kg
Dimensions :
33 x 21 x 20 mm
Manufacturer / Brand :
DAHUA
Guarantee :
3 years
PRESENTATION
Connecting the twisted-pair cable to the transformer:
The enclosures are made so that can be joined them to each other:
OUR TESTS Amplitude - frequency response - 2 transformers connected briefly (RF PWR OUT = 0 dBm):
OUR OPINIONS The enclosures are made so that can be joined them to each other.
Tiny dimensions allow to easy montage of the transformers even in case of thick BNC sockets mounted.
Spring terminals for twisted-pair cable allow to quick assembly without any tools.
Due to the large attenuation, it is not recommended to use with a longer twisted pair cable.
FILES
Manufacturer's Data Sheet EN
496 kB
PACKAGE Dimensions (L x W x H): 120x95x30 mm Package: Blister Gross Weight: 0.055 kg In the package: 2 pcs
COMPONENTS OF WORKING WITH: PFM800-4MP
Net: 0.00 PLN
Gross: 0.00 PLN
Weight: 0.00 kg
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