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Network Components


Video Transmitter/Receiver (Balun): 1VP-B (BNC, angular, 2pcs)
Code: M16654
Price w/o taxPriceDisc.Validity  
2.90 EUR2.90 EUR0 %
2-year warranty
Video transformer TR-1Q with BNC socket - CLEARANCE SALE!
View of the balun
Video transformer TR-1Q with BNC socket - CLEARANCE SALE!
View of the opposite side
The 1VP-B balun (passive transformer) is designed to transmit video signal from an unbalanced (75 ohm) output to an unbalanced (75 ohm) video input, via a twisted pair of UTP, FTP, or STP cable, using one device on each end of the transmission line. Due to angular shape, it integrates well with the source and the receiver of the signal.
The transformer matches the impedance of coaxial video output (75 ohm) to the impedance of the balanced line (100 ohm), ensuring proper video transmission via cat. 5 twisted pair cable from many types of cameras:
  • PAL (CVBS) up to 400 m
  • HD-TVI, AHD up to 200 m (720p) or 150m (1080p)
  • HD-CVI up to 200m
The installer should pay attention to connecting the appropriate leads to the correct terminals: (+) to (+) and (-) to (-). Improper connection will cause interference.



Maximum range
400 m (CVBS)
150 m (HD-TVI, AHD)

Standard level at coaxial  input/output (CVBS, 75 Ω)

1 Vpp

Pass-trough attenuation

0.5 dB (f=5 MHz)


0 ... 50 MHz (-3 dB)

CMRR (dB @ 5MHz)

60 dB

Impedance of coaxial input/output

75 Ω

Impedance of balanced output/input

100 Ω

Coaxial connector

BNC male plug

Balanced connector

screw terminals

Operating temp. / relative humidity

0ºC...+55ºC / <95%


0.016 kg

Dimensions (W x H x D)

15 x 33 x 24 mm

CMRR in video transformers (baluns). "Balun" is the short for "Balance-Unbalance", in CCTV applications meaning a transformer for changing the transmission medium from a coaxial cable to a twisted pair, and vice versa. The biggest advantages of using balanced transmission cables are lower costs, higher resistance to external interferences, and possibility of using longer transmission lines. Due to identical arrangement of the two wires of a balanced line, the interferences are also the same and can be cancelled in a differential balanced input of the receiver. It is not possible in the case of a coaxial transmission line.
The ability of a video transformer to cancel the common interferences identical in both wires is characterized by Common Mode Rejection Ratio (CMRR). It is the ratio of the error signal at the asymmetric output of the transformer to the interference on the both balance inputs. The parameter can be measured, for example, by applying high, common interference signal Vz to the both balance inputs (i.e. shorted, to eliminate a differential signal). Under such conditions, an ideal transformer would not provide any signal on its unbalanced output, but the real device will demonstrate a Vb value. The CMRR is calculated using the following formula:
CMRR = 20*LOG(Vb/Vz)
The CMRR of Etrix baluns (in the 15 kHz to 6 MHz range) is 60 dB. It means that they attenuate the common signals (interferences) 1000 times.
Price for blister packaging (2 pcs.)
Price w/o taxPriceDisc.Validity  
2.90 EUR2.90 EUR0 %
Video Transmitter/Receiver (Balun): 1VP-B (BNC, angular, 2pcs)
Code: M16654