{"product_id":"ks1-20-b-yokogawa-centum-vp-fio-signal-cable-interface-terminal-block","title":"KS1-20*B YOKOGAWA CENTUM VP FIO Signal Cable Interface Terminal Block","description":"\u003ch2\u003eYOKOGAWA KS1-20*B Signal Cable Interface\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYOKOGAWA KS1-20*B\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eKS1*B\u003c\/strong\u003e Terminal Block, operates as a dedicated hardware component for field wiring termination and signal routing within CENTUM VP and CS 3000 distributed control system platforms.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\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\u003eKS1-20*B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYOKOGAWA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.9 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e25.4 cm x 5.1 cm x 38.1 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard cabinet environment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive (Loop powered)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Capacity\u003c\/td\u003e\n\u003ctd\u003e20 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Voltage\u003c\/td\u003e\n\u003ctd\u003e24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e2 kV AC withstand\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol and Channel-to-Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe KS1-20*B serves as the physical interface layer for Yokogawa FIO modules, facilitating the transition from high-density system cabling to localized field wiring. To ensure high measurement fidelity, the adapter maintains rigorous channel-to-channel isolation. This configuration is required to prevent cross-interference between signal loops, specifically when integrating 4-20 mA HART loop protocol instrumentation. The termination block design minimizes impedance discontinuities, allowing for stable transmission between the field sensors and the I\/O module backplane. Furthermore, the architecture supports consistent cold junction compensation (CJC) pathing when paired with thermocouple-capable input modules, maintaining the deterministic nature of the DCS data acquisition cycle.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the KS1-20*B terminal block be used with modules requiring higher than 0.5 A per channel?\u003c\/p\u003e\n\u003cp\u003eA: No, the terminal block is rated for a maximum of 0.5 A per channel. Exceeding this current limit will cause excessive heating of the brass screw terminals and may result in permanent damage to the interface block or increased contact resistance.\u003c\/p\u003e\n\u003cp\u003eQ: How do I ensure proper grounding when connecting the KS1-20*B to field devices?\u003c\/p\u003e\n\u003cp\u003eA: You must terminate the cable shields at the designated chassis ground point provided on the rack-mounting assembly. Do not daisy-chain shields between channels, as this bypasses the channel-to-channel isolation and introduces common-mode noise.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDe-energize the associated I\/O module and the field loop power supply before performing any wiring modifications.\u003c\/li\u003e\n\u003cli\u003eInspect the screw-type terminals for any metallic debris or thread damage prior to inserting field wires.\u003c\/li\u003e\n\u003cli\u003eStrip the insulation from the field wires to the minimum length required to achieve full contact within the terminal clamp, preventing exposed copper.\u003c\/li\u003e\n\u003cli\u003eTorque the M3\/M4 terminal screws to the manufacturer's specified values to ensure a gas-tight electrical connection, which mitigates long-term corrosion.\u003c\/li\u003e\n\u003cli\u003eVerify point-to-point continuity from the field terminal to the DCS controller input after termination to confirm mapping integrity.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43577342296154,"sku":"KS1-20*B","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/427_37b42e82-0493-42ad-97ea-f42b32a3217d.jpg?v=1782886377","url":"https:\/\/www.spareoil.com\/products\/ks1-20-b-yokogawa-centum-vp-fio-signal-cable-interface-terminal-block","provider":"SpareOil Automation","version":"1.0","type":"link"}