{"product_id":"abb-sd832-3bsc610065r1-power-supply-unit","title":"ABB SD832 3BSC610065R1 Power Supply Unit","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eABB TB840A\u003c\/strong\u003e (3BSE021456R1) is a \u003cstrong\u003eModuleBus Modem\u003c\/strong\u003e that serves as a fiber optic interface to the Optical ModuleBus in S800 I\/O systems. It enables redundant I\/O configurations where each module connects to different Optical ModuleBus lines while sharing the same electrical ModuleBus, supporting up to 12 I\/O modules per electrical cluster and up to 7 clusters via fiber optic.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e ABB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e TB840A (3BSE021456R1)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e ModuleBus Modem\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e S800 I\/O\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Fiber optic interface to Optical ModuleBus\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectrical ModuleBus:\u003c\/strong\u003e Up to 12 I\/O modules\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptical ModuleBus:\u003c\/strong\u003e Up to 7 clusters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCluster Address:\u003c\/strong\u003e Set by rotary switch on TU807\/TU840\/TU841\/TU848\/TU849 (range 1–7)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Output:\u003c\/strong\u003e 24 V DC protected, isolated 5 V DC to cluster I\/O modules\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRedundancy:\u003c\/strong\u003e Supported (each module on different Optical ModuleBus lines)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e DIN rail via compatible termination unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOptical ModuleBus I\/O clusters\u003c\/li\u003e\n  \u003cli\u003eRedundant S800 I\/O configurations\u003c\/li\u003e\n  \u003cli\u003eLong-distance I\/O distribution\u003c\/li\u003e\n  \u003cli\u003eElectrical isolation between controller and field I\/O\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between TB840 and TB840A?\u003c\/strong\u003e\u003cbr\u003eA: TB840A is a hardware revision\/update of TB840 with improved reliability. Functionally they are interchangeable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Which termination units are compatible with TB840A?\u003c\/strong\u003e\u003cbr\u003eA: TU807 (single), TU840\/TU848 (redundant with shared power), TU841\/TU849 (non-redundant with individual power).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can TB840A be used without fiber optics?\u003c\/strong\u003e\u003cbr\u003eA: TB840A requires fiber optic connection for the Optical ModuleBus. For electrical-only ModuleBus, use direct electrical connections without TB840A.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eMount the compatible termination unit (TU840, TU841, TU848, or TU849) on DIN rail.\u003c\/li\u003e\n  \u003cli\u003eInstall TB840A onto the termination unit.\u003c\/li\u003e\n  \u003cli\u003eSet cluster address (1–7) using the rotary switch on the termination unit.\u003c\/li\u003e\n  \u003cli\u003eConnect 24 V DC power to L+ and L- terminals.\u003c\/li\u003e\n  \u003cli\u003eConnect fiber optic cables to the Optical ModuleBus ports.\u003c\/li\u003e\n  \u003cli\u003eAttach up to 12 S800 I\/O modules to the electrical ModuleBus.\u003c\/li\u003e\n  \u003cli\u003eVerify power supervision via SA\/SB inputs for redundant supplies.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSelection Tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUse TB840A for optical ModuleBus applications requiring electrical isolation or long-distance I\/O.\u003c\/li\u003e\n  \u003cli\u003eFor redundant I\/O, pair with TU840 or TU848 termination units.\u003c\/li\u003e\n  \u003cli\u003eVerify fiber type (plastic, HCS, or glass) and connector compatibility (Versatile Link or ST).\u003c\/li\u003e\n  \u003cli\u003eConsider TB825\/TB826 optical media converters for fiber type conversion.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":53844607893688,"sku":"SD832","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/SD832.png?v=1785480346","url":"https:\/\/www.globalpetroparts.com\/products\/abb-sd832-3bsc610065r1-power-supply-unit","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}