National Wire & Cable has decades of real-world experience designing and manufacturing the toughest, most dependable geophysical cables in the industry. Our engineers have the technical knowledge to deliver cable that meets or exceeds your specifications no matter how harsh the environment.
shielded twisted pair cables with 135-ohm controlled impedance, for digital signal use, one of our specialties: National is recognized in the seismic industry for our trouble-free D2436/D2440 Twinax using our proprietary "Self-Healing Dielectric" in our "Industry Standard Twinax" widely used to carry digital telemetry in ocean-bottom seismic-search cables.
Colors: This cable product is available with a choice of colors for the outer jacket. The part number to specify a given color is shown below.
D2436-5 - Jacket Color, Green - Pair Color, Green paired with Natural Trans.
D2436-6 - Jacket Color, Blue - Pair Color, Green paired with Natural Trans.
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D-2520 Streamer Telemetry pair presents a low-loss 135-ohm impedance when oil-immersed in Kerosene, or Niroma. This product has been tested and qualified for use with Sercel/Syntron digital marine repeaters. Widely used in US-made original-equipment towed streamer cables. A preferred rugged replacement telemetry pair for use with Sercel/Syntron digital marine repeaters.
Color Code: This cable is available with a choice of colors for the two paired wires. The part number suffix (-X) shown below is used to specify a given color combination. Colors will be pastel.
Natural Trans Paired with Black: -0
Natural Trans Paired with Brown: -1
Natural Trans Paired with Red: -2
Natural Trans Paired with Orange: -3
Natural Trans Paired with Yellow: -4
Natural Trans Paired with Green: -5
Natural Trans Paired with Blue: -6
Natural Trans Paired with Violet: -7
Natural Trans Paired with Gray: -8
Natural Trans Paired with White: -9
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