{"product_id":"module-termination-unit-abb-s800-i-o-module-tu849-3bse042560r1","title":"Module Termination Unit ABB S800 I\/O Module TU849 3BSE042560R1","description":"\u003ch2\u003eABB TU849 3BSE042560R1 Module Termination Unit\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eABB TU849 3BSE042560R1\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eTU849\u003c\/strong\u003e Module Termination Unit, provides physical termination and power distribution for redundant TB840\/TB840A Optical ModuleBus Modem configurations within ABB ModuleBus 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\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eTU849 3BSE042560R1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eSweden\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eModule Termination Unit (MTU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocol\u003c\/td\u003e\n\u003ctd\u003eModuleBus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration Type\u003c\/td\u003e\n\u003ctd\u003eRedundant TB840\/TB840A, Single I\/O, Dual Power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Input\u003c\/td\u003e\n\u003ctd\u003e24 VDC (19.2 to 30 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.45 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e124 mm W x 186.5 mm H x 47 mm D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eVertical or Horizontal DIN rail mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to +55 deg C (approved range +5 to +55 deg C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e2.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModuleBus Current Distribution\u003c\/td\u003e\n\u003ctd\u003eMaximum 5 V 1.5 A and 24 V 1.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLine Redundancy\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHot Swap Support\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMechanical Key Configurations\u003c\/td\u003e\n\u003ctd\u003e36 selectable combinations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Insulation Voltage\u003c\/td\u003e\n\u003ctd\u003e50 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Test Voltage\u003c\/td\u003e\n\u003ctd\u003e500 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Class\u003c\/td\u003e\n\u003ctd\u003eIP20 according to IEC 60529\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5 to 95 %, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Size Range\u003c\/td\u003e\n\u003ctd\u003eSolid and stranded 0.2 to 2.5 mm2, 24 to 12 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Terminal Torque\u003c\/td\u003e\n\u003ctd\u003e0.5 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eABB ModuleBus Redundant Power and I\/O Interface Design\u003c\/h3\u003e\n\u003cp\u003eThe TU849 uses passive electrical routing to connect two TB840\/TB840A Optical ModuleBus Modems with individual power supply inputs. The unit provides one electrical ModuleBus connection and supports redundant modem installation for non-redundant I\/O configurations.\u003c\/p\u003e\n\u003cp\u003eFurthermore, the MTU integrates a rotary switch for cluster address selection from 1 to 7. Four mechanical keys define module compatibility through 36 selectable hardware configurations. The key positions can be adjusted with a screwdriver to match the installed modem arrangement.\u003c\/p\u003e\n\u003cp\u003eFor ABB industrial control platforms, the TU849 supports ModuleBus communication structures where backplane bus communication velocity and I\/O density scaling depend on the connected controller and I\/O architecture. The passive termination design maintains direct signal routing without internal processing functions.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the ABB TU849 support hot swap replacement of TB840\/TB840A modules?\u003cbr\u003eA: No. The TU849 does not provide hot swap capability. Power isolation and system shutdown procedures should be followed before replacing connected modem modules.\u003c\/p\u003e\n\u003cp\u003eQ: What type of power connection does the TU849 provide for redundant modem installation?\u003cbr\u003eA: The TU849 provides two separate power supply connections, with one connection assigned to each TB840\/TB840A modem position.\u003c\/p\u003e\n\u003cp\u003eQ: How are module compatibility settings configured on the TU849?\u003cbr\u003eA: The MTU uses four mechanical keys with six positions each. These settings provide 36 possible hardware configurations and can be adjusted using a screwdriver.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the TU849 on a standard DIN rail using the integrated mechanical latch. Verify that the latch is correctly locked after mounting to prevent mechanical movement during operation.\u003c\/p\u003e\n\u003cp\u003eConnect the 24 VDC power supply lines according to the assigned modem positions. Maintain correct polarity and separate power routing for each redundant modem connection.\u003c\/p\u003e\n\u003cp\u003eUse approved industrial wiring practices when connecting ModuleBus and power conductors. Keep signal cables separated from high-voltage switching circuits to reduce electrical interference.\u003c\/p\u003e\n\u003cp\u003eBefore operation, verify the rotary switch cluster address setting and confirm that the mechanical key configuration matches the installed TB840\/TB840A modem type.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":44632898142296,"sku":"TU849","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/TU849-3_1200x1200_da444ccc-fdd1-4f77-8a47-48e10680212a.jpg?v=1787300064","url":"https:\/\/www.industriaxplc.com\/id\/products\/module-termination-unit-abb-s800-i-o-module-tu849-3bse042560r1","provider":"IndustriaX Limited","version":"1.0","type":"link"}