{"product_id":"snt501-53-yokogawa-optical-esb-bus-repeater-slave-module","title":"SNT501-53 | Yokogawa | Optical ESB Bus Repeater Slave Module","description":"\u003ch2\u003eYokogawa SNT501‑53 Optical ESB Bus Repeater Slave Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa SNT501‑53\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eSNT501‑53\u003c\/strong\u003e optical ESB bus repeater slave module, operates as a dedicated ESB optical‑extension component for long‑distance bus communication within CENTUM control networks.\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\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eSNT501‑53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e3 kg (shipping weight)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003eStandard ESB repeater form factor; no numeric value provided\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temp\u003c\/th\u003e\n\u003ctd\u003e–20 to 70 deg C (ISA G3 maintenance rating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Consumption\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModule Type\u003c\/th\u003e\n\u003ctd\u003eOptical ESB bus repeater slave module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eExplosion Protection\u003c\/th\u003e\n\u003ctd\u003eCode “5” – no explosion protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEnvironmental Rating\u003c\/th\u003e\n\u003ctd\u003eCode “3” – ISA G3, maintenance‑only thermal range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTransmission Medium\u003c\/th\u003e\n\u003ctd\u003eOptical fiber (single‑mode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eESB Role\u003c\/th\u003e\n\u003ctd\u003eSlave repeater for ESB bus extension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eLong‑distance ESB bus communication in CENTUM systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eOptical ESB Bus Repeater Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eOptical Isolation \u0026amp; ESB Channel Behavior\u003c\/h3\u003e\n\u003cp\u003eWithin Yokogawa ESB architectures, SNT‑series modules maintain optical isolation between electrical ESB segments and fiber‑optic links. The optical interface suppresses cross‑talk and high‑frequency interference, ensuring deterministic ESB timing when extending bus distance. Channel‑to‑channel isolation prevents impedance coupling between redundant ESB paths, supporting stable operation in simplex or redundant ESB topologies.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the SNT501‑53 be inserted or removed while the ESB segment is energized? A: ESB repeater modules are not designed for hot‑swap. Removal or insertion should occur only when the associated ESB segment is de‑energized to avoid transient bus faults.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module support redundant ESB configurations? A: Yes. The optical repeater can be used in simplex or redundant ESB paths depending on the system’s topology.\u003c\/p\u003e\n\u003cp\u003eQ: How does optical isolation affect ESB timing? A: Optical isolation eliminates electrical noise and maintains deterministic ESB timing across extended fiber‑optic segments.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVerify correct fiber‑optic connector seating before energizing the ESB segment.\u003c\/li\u003e\n\u003cli\u003eMaintain clean fiber‑end faces to avoid attenuation and packet‑loss conditions.\u003c\/li\u003e\n\u003cli\u003eRoute ESB electrical wiring separately from high‑current conductors to reduce induced noise.\u003c\/li\u003e\n\u003cli\u003eEnsure proper grounding of electrical ESB segments while keeping optical paths isolated.\u003c\/li\u003e\n\u003cli\u003eInspect module mounting points periodically to prevent vibration‑induced connector fatigue.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":47901790732478,"sku":"SNT501-53","price":3000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-06-17_16-27-16_4f06e225-da1a-4115-97cd-07f089f95cea.png?v=1781747141","url":"https:\/\/www.autooiltech.com\/products\/snt501-53-yokogawa-optical-esb-bus-repeater-slave-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}