{"product_id":"yokogawa-nfsbt02-sb-bus-t-joint-connector-terminal-block","title":"Yokogawa NFSBT02 SB Bus T-Joint Connector Terminal Block","description":"\u003ch2\u003eYokogawa NFSBT02 SB Bus T-Joint Connector\u003c\/h2\u003e\n\u003cp\u003eConfigured for signal termination and bus branching in CENTUM VP and ProSafe-RS control networks, the \u003cstrong\u003eYokogawa NFSBT02\u003c\/strong\u003e (\u003cstrong\u003eNFSBT02\u003c\/strong\u003e SB Bus T-Joint Connector) provides direct physical\/electrical execution. The hardware operates as a T-junction to branch communication paths from the main bus line while utilizing an integrated physical resistor to match the system characteristic impedance. By absorbing electrical wave reflections at the bus boundaries, this passive module maintains signal integrity across distributed field processing nodes.\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\u003eNFSBT02\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\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.2 kg (Net: 0.2 kg to 0.3 kg depending on mounting hardware)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e100 mm x 35 mm x 25 mm (Alternative physical envelope: 32 mm x 114 mm x 63 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive (Maximum voltage rating: 30 V DC, Rated current: 50 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTermination Resistance\u003c\/td\u003e\n\u003ctd\u003e100 ohms +\/- 1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 100 M-ohms (at 500 V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Strength\u003c\/td\u003e\n\u003ctd\u003e500 V AC for 1 minute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Resistance\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 20 m-ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eFlame-retardant industrial-grade polycarbonate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity Range\u003c\/td\u003e\n\u003ctd\u003e0 - 95% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Type\u003c\/td\u003e\n\u003ctd\u003eYokogawa SB Bus standard connector (T-type branching configuration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDCS Interface \u0026amp; Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThis bus branching hardware manages physical connection paths between field control stations and remote I\/O sub-assemblies. The integration of the 100-ohm termination resistance prevents signal decay and standing wave generation on the SB bus lines. In compliance with high-integrity process control environments, the internal electrical layout features direct isolation barriers, maintaining isolation of 500 V AC to prevent ground loops from passing through the branch line to the primary bus network. It operates independently of the 4-20 mA HART loop protocol layer, focusing purely on high-speed digital bus termination.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does this bus terminator require an external power supply to execute signal termination? A: No, the unit functions as a completely passive hardware device containing precision analog termination resistors, requiring no external supply voltage or backplane power.\u003c\/p\u003e\n\u003cp\u003eQ: Can the branching connector be hot-swapped or disconnected during active bus communication? A: Disconnecting this module during active operations breaks the SB bus circuit and removes the termination resistance, causing signal reflections and potential communications loss across all nodes on that bus segment. Disconnections must only occur when the associated bus segment is offline.\u003c\/p\u003e\n\u003cp\u003eQ: What is the purpose of the 100-ohm internal resistance? A: The 100-ohm internal resistance matches the characteristic impedance of the Yokogawa SB bus transmission lines, suppressing signal reflections that occur at the physical end of the cable runs.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminator Placement\u003c\/strong\u003e: Mount this T-joint unit strictly at the physical end points of the SB bus network segment to ensure proper termination of line impedances.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Alignment\u003c\/strong\u003e: Align the standard SB bus connector pinout carefully before insertion to avoid bending the contact pins, which can increase contact resistance above 20 m-ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCabinet Mounting\u003c\/strong\u003e: Secure the connector body using the standard mounting brackets to prevent vibration from stressing the connected SB bus cables.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConduit Separation\u003c\/strong\u003e: Position the SB bus communication cables at least 300 mm away from high-voltage AC or motor drive wiring to minimize external electromagnetic noise injection into the branch lines.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43667579535450,"sku":"NFSBT02","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/569.jpg?v=1784251083","url":"https:\/\/www.spareoil.com\/ar\/products\/yokogawa-nfsbt02-sb-bus-t-joint-connector-terminal-block","provider":"SpareOil Automation","version":"1.0","type":"link"}