{"product_id":"abb-nktt01-8-infi-net-termination-cable-bailey-infi-90","title":"ABB NKTT01-8 Infi-Net Termination Cable Bailey Infi 90","description":"\u003cp\u003eConfigured for high-speed signal termination and line impedance matching in Bailey Infi 90 networks, the \u003cstrong\u003eABB NKTT01-8\u003c\/strong\u003e (\u003cstrong\u003eNKTT01\u003c\/strong\u003e Infi-Net Termination Cable) provides direct physical\/electrical execution. This 8 ft assembly maintains transmission line integrity across distributed control nodes, preventing signal reflection and attenuation along high-frequency communication lines. It establishes isolated 75 ohm termination points between processing modules and field bus segments without introducing network noise or line distortion.\u003c\/p\u003e\n\u003ch3\u003ePart Number Breakdown \u0026amp; Configuration Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNKTT01\u003c\/strong\u003e: Base assembly designation for Bailey Infi 90 Infi-Net coaxial termination cable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-8\u003c\/strong\u003e: Specified cable segment length in feet (8 ft \/ 2.44 m total assembly length).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Termination\u003c\/strong\u003e: Factory-fitted 75 ohm non-inductive load resistor (1% tolerance) built directly into the cable end for optimal bus matching.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePhysical \u0026amp; Electrical Parameters\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eNKTT01-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB \/ Bailey\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eSWEDEN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlace of Shipment\u003c\/td\u003e\n\u003ctd\u003eXiamen, China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.1 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e12.7 x 2.5 x 12.7 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20 ... +80 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive component (0 W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharacteristic Impedance\u003c\/td\u003e\n\u003ctd\u003e75 ohm +\/-3 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVelocity Ratio\u003c\/td\u003e\n\u003ctd\u003e0.82\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAttenuation\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;= 0.20 dB\/m @ 5 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Data Rate\u003c\/td\u003e\n\u003ctd\u003e5 Mbit\/s HDLC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShield Isolation\u003c\/td\u003e\n\u003ctd\u003e1 kV RMS shield-to-outer jacket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminator Resistance\u003c\/td\u003e\n\u003ctd\u003e75 ohm +\/-1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e8 ft (2.44 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTariff Code\u003c\/td\u003e\n\u003ctd\u003e8537101190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Communication \u0026amp; Deterministic Network Integrity\u003c\/h3\u003e\n\u003cp\u003eThe NKTT01-8 ensures continuous backplane bus communication velocity and deterministic signal transmission across Infi-Net loops. By maintaining strict impedance matching (75 ohm +\/-3 ohm) and low signal attenuation (\u0026lt;= 0.20 dB\/m at 5 MHz), the assembly prevents packet corruption in high-throughput 5 Mbit\/s HDLC protocols. The 1 kV RMS galvanic isolation between the inner braid shield and outer jacket suppresses common-mode noise and ground loop currents. This protects node electronics and maintains firmware flash compatibility across network nodes during continuous DCS operation.\u003c\/p\u003e\n\u003ch3\u003ePackage Contents \u0026amp; Ordering Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x ABB NKTT01-8 Infi-Net Termination Cable Assembly (8 ft \/ 2.44 m)\u003c\/li\u003e\n\u003cli\u003eIntegrated 75 ohm bus terminator resistor module\u003c\/li\u003e\n\u003cli\u003eStandard factory-sealed protective polybag packaging\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSite Installation \u0026amp; Cable Handling Rules\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius Compliance\u003c\/strong\u003e: Maintain a minimum static bend radius of 50 mm during installation to prevent deformation of the dielectric core and shield integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding Requirements\u003c\/strong\u003e: Ensure the outer shield isolation is preserved along the cable tray; do not strip the outer jacket or short the outer shield to local enclosure earth except at designated system grounding points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Strain Relief\u003c\/strong\u003e: Support the cable assembly within 100 mm of the module connection port to relieve strain on the termination junction and interface pins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRouting Distance\u003c\/strong\u003e: Keep the termination cable isolated by at least 300 mm from high-voltage AC power lines and variable frequency drive cables to mitigate electromagnetic interference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Support FAQ\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the primary function of the built-in 75 ohm resistance?\u003c\/p\u003e\n\u003cp\u003eIt terminates the Infi-Net coax line to match characteristic impedance, eliminating signal reflections that cause HDLC frame corruption.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan the cable length be shortened or lengthened manually in the field?\u003c\/p\u003e\n\u003cp\u003eNo, altering the physical length disrupts calibration, velocity factor, and impedance parameters, leading to signal degradation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs the NKTT01-8 cable hot-swappable during active network operation?\u003c\/p\u003e\n\u003cp\u003eDisconnecting the cable interrupts bus termination, which can destabilize communication across active nodes on that network loop.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow do you test if the internal terminator resistor is functional?\u003c\/p\u003e\n\u003cp\u003eMeasure resistance across the core conductor and inner shield with a digital multimeter; it must read 75 ohm (+\/-1 ohm).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the purpose of the 1 kV RMS shield isolation rating?\u003c\/p\u003e\n\u003cp\u003eIt prevents ground potential differences between remote cabinets from driving circulating currents through the coaxial shield.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes this passive cable draw power from the Infi-Net interface card?\u003c\/p\u003e\n\u003cp\u003eNo, it operates as a completely passive termination device and draws zero current from the host controller or node backplane.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow does velocity ratio affect signal propagation in this assembly?\u003c\/p\u003e\n\u003cp\u003eA velocity ratio of 0.82 ensures rapid signal travel time, minimizing latency and phase shifts over the 2.44 m transmission span.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat environmental protections are recommended for harsh field installation?\u003c\/p\u003e\n\u003cp\u003eRoute inside closed conduits or sealed wireways to stay within the -20 ... +80 deg C operating range and avoid physical abrasion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":46021112955053,"sku":"NKTT01-8","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/ntkk01-8.jpg?v=1789277717","url":"https:\/\/www.maxwellplc.com\/ga\/products\/abb-nktt01-8-infi-net-termination-cable-bailey-infi-90","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}