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N-DJYVP2 Cable: Signal Integrity Where Electrical Noise Is Non-Negotiable

A fluctuating signal in a control loop isn’t an inconvenience. It’s process instability, a batch at risk, or an unplanned shutdown traced back to a cable that couldn’t shield against the inverter drives three meters away. The cost per meter of a cable is trivial next to the financial black hole of a plant floor stoppage.

The N-DJYVP2 cable is engineered to block that exact risk. This is a screened, PVC-sheathed instrument cable built around a copper tape collective screen. It delivers a defined path for ambient electromagnetic interference (EMI) to drain to ground, keeping your 4-20 mA and low-voltage data signals intact from transmitter to DCS. For new builds or retrofits where electrical noise is prevalent, this configuration offers a direct route to stable, repeatable measurements without resorting to expensive rerouting of cable trays.

Noise Rejection Designed for the Real Industrial Floor

Copper Tape Collective Screen with 100% Coverage

• [Feature]: A helically applied copper tape over the assembled cores, bonded to a tinned copper drain wire, delivering 100% optical coverage.
• [Advantage]: Unlike a braided screen with its inherent gaps, the tape screen acts as a uniform barrier against high-frequency conducted noise and radiated fields. This design provides exceptionally stable transfer impedance, even at tighter bend radii where braids can open up. [Benefit to Your Project]: The 4-20 mA loop signal from a pressure transmitter is read by the PLC at its true value. No ghost fluctuations caused by a VFD turning on nearby. Your control logic works on real data, preventing false alarms and incorrect valve actuation.

PE Core Insulation for High Resistance

• [Feature]: Each stranded bare copper conductor is insulated with a layer of solid, premium-grade Polyethylene (PE), a material with a dielectric constant significantly lower than PVC.
• [Advantage]: Low dielectric loss and very high insulation resistance—typically in the thousands of MΩ/km range when new—preserves the original signal shape and amplitude over long cable runs. PE’s dielectric strength also provides a robust electrical safety margin against transient over-voltages. [Benefit to Your Project]: This is longevity of signal chain accuracy. For a field instrument located 500 meters from the control room, the PE dielectric ensures the 24V supply drop is predictable, and the returned 20 mA signal isn’t attenuated to a point where the analog input card misinterprets it.

Individual Pairs Twisted to a Precise Lay Length

• [Feature]: The two cores forming a transmission pair are twisted together with a strictly controlled lay length, with each pair in a multi-pair cable having a unique lay.
• [Advantage]: A precise and varied twist ratio forces induced noise on one conductor to be 180 degrees out of phase with its partner. This common-mode noise is then mutually cancelled at the receiving end, a phenomenon quantified as a high Common Mode Rejection Ratio (CMRR). Unique lays prevent crosstalk contamination between adjacent pairs carrying different types of signals. [Benefit to Your Project]: A multi-core trunk cable can safely carry a mix of unscreened analog inputs and low-speed serial data signals without mutual interference. No need to pull separate dedicated cables for each signal type, cutting installation time and tray space requirements.

Robust Black PVC Outer Sheath

• [Feature]: A tough, black Polyvinyl Chloride (PVC) jacket extruded over the screen, available in standard and flame-retardant compounds (ST2 to IEC 60502-1 or similar).
• [Advantage]: Resistant to mineral oils, common industrial cutting fluids, and mechanical abrasion. The black carbon-black-filled formulation provides UV stabilization for scenarios where cables might run exposed, such as on above-ground pipe racks. Flame-retardant variants are self-extinguishing and will not propagate fire vertically along a cable rack. [Benefit to Your Project]: The cable survives standard installation practices—being pulled through conduits, over tray edges, and in contact with oil—without sheath cracking. A flame-retardant sheath option directly supports your plant’s loss-prevention and insurance compliance strategy.

Technical Specifications & Dimensions

A standard build is shown. Our engineering team adjusts the core count, conductor size, and sheath chemistry to align precisely with your project’s instrument schedule, which is the definition of our customizable approach.