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BELDEN VIDEOTWIST DATA CABLE Solid conductor - Low skew

The Belden ‘Videotwist’ series of cables are designed to provide very low signal skew and low return loss, and are particularly suitable for driving high-resolution RGB video displays and other applications where the different physical lengths of the pairs in a multipair cable is a critical issue.

U/UTP (unscreened twisted pair) cables, by design, have different twist lengths for each pair which means that each pair has a different physical length. This difference in length causes a signal delay difference from pair to pair which is known as skew. The resulting skew limits the overall transmission distance of the U/UTP cable. The higher the skew, the shorter the distance. For this reason, most U/UTP cables are limited to a transmission distance of about 100-200 metres unless skew compensation equipment is used. Dependent on the parameters of the equipment used, it is possible to extend this to 400 metres and beyond using the ‘Videotwist’ series of cables.

Technical Specification:

7987R

Rating: Video
Conductors: 1/0.52mm (24AWG) plain copper
Insulation: Polyolefin, according to CW1308 colour code
Lay-up: Two insulated conductors twisted together, pairs twisted together
Overall jacket: PVC, OD 4.95mm, maroon
Impedance: 100 +/-15 ohms
Attenuation (dB/100m): 1MHz 10MHz 100MHz 200MHz 350MHz
2.0dB 6.5dB 22.0dB 32.0dB 44.8dB
Return loss (min.): 1MHz 10MHz 100MHz 200MHz 350MHz
15.0dB 15.0dB 15.0dB 15.0dB 15.0dB
Weight: 3.3kg/100m
Reel length: 305 metres (Belden ‘Unreel’ box dispenser pack)
Cut lengths: Not available. May only be ordered in multiples of 305 metres

7989R

Rating: Category 6
Conductors: 1/0.52mm (24AWG) plain copper
Insulation: Polyolefin, according to CW1308 colour code
Lay-up: Two insulated conductors bonded together and twisted, pairs laid side-by-side
Overall jacket: PVC, 9.27mm x 4.19mm, blue
Impedance: 100 +/-15 ohms
Attenuation (dB/100m): 1MHz 10MHz 100MHz 200MHz 350MHz
2.0dB 6.0dB 19.8dB 29.0dB 59.8dB
Return loss (min.): 1MHz 10MHz 100MHz 200MHz 350MHz
20.0dB 25.0dB 20.1dB 15.3dB 13.9dB
Weight: 5.3kg/100m
Reel length: 305 metres
Cut lengths: Not available. May only be ordered in multiples of 305 metres
  Description Price (£) Add to basket
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BELDEN 7987R CABLE   Stock code: 60-7987R
Please login for stock availability and lead times.
305+ £2.18
305+ £1.74
500+ £1.70
1,000+ £1.64
per metre
BELDEN 7989R CABLE   Stock code: 60-7989R
Please login for stock availability and lead times.
305+ £2.91
305+ £2.33
500+ £2.27
1,000+ £2.18
per metre