{"product_id":"allen-bradley-1794-tb37ds-flex-i-o-terminal-base-unit","title":"Allen-Bradley 1794-TB37DS Flex I\/O Terminal Base Unit","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1794-TB37DS\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1794-TB37DS\u003c\/strong\u003e Terminal Base Unit, operates as a dedicated hardware component for field signal termination and module backplane interfacing within Allen-Bradley Flex I\/O systems. The unit incorporates a 37-pin D-shell interface to connect pre-wired field cable assemblies directly to inserted 1794 I\/O modules.\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\u003e1794-TB37DS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\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\u003e0.30 lbs (0.14 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Flex I\/O Base Dimensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive Terminal Base Component\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Connector\u003c\/td\u003e\n\u003ctd\u003e37-pin D-shell female connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eTS35 DIN rail or panel mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eTerminal Base Unit \/ Panel Accessory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP Deterministic Networks \u0026amp; Backplane Bus Velocity\u003c\/h3\u003e\n\u003cp\u003eThe 1794-TB37DS terminal base connects inserted functional modules directly to the Flexbus backplane, facilitating high-velocity communication with EtherNet\/IP adapters. Utilizing a 37-pin D-shell connection interface permits rapid field harness installation and eliminates individual point-to-point wiring errors. Internal signal traces are routed to maintain physical isolation and prevent cross-talk between backplane communication signals and field I\/O lines.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What interface connector type is provided on the 1794-TB37DS terminal base?\u003c\/p\u003e\n\u003cp\u003eA: The base unit features an integrated 37-pin D-shell connector designed for rapid mating with multi-conductor pre-wired cables.\u003c\/p\u003e\n\u003cp\u003eQ: What ingress protection rating applies to the 1794-TB37DS base unit?\u003c\/p\u003e\n\u003cp\u003eA: The chassis carries an IP20 open-style enclosure rating, requiring installation inside a suitable control cabinet.\u003c\/p\u003e\n\u003cp\u003eQ: How is the 1794-TB37DS terminal base secured inside an instrument cabinet?\u003c\/p\u003e\n\u003cp\u003eA: The unit mounts onto standard TS35 DIN rails or can be screwed directly to a cabinet panel plate.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eSnap the 1794-TB37DS terminal base onto a grounded TS35 DIN rail or secure it to the enclosure backpanel using screws.\u003c\/li\u003e\n\u003cli\u003eSlide the unit laterally into adjacent terminal bases to ensure the Flexbus backplane connectors lock together completely.\u003c\/li\u003e\n\u003cli\u003ePlug the pre-wired 37-pin D-shell cable harness into the base interface and tighten the connector retention screws.\u003c\/li\u003e\n\u003cli\u003eSet the module mechanical keyswitch on the terminal base to the designated position required for the specific I\/O card.\u003c\/li\u003e\n\u003cli\u003eEnsure the DIN rail or panel surface is grounded to provide electrostatic discharge protection across the I\/O assembly.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52786948112664,"sku":"1794-TB37DS","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/1794-TB37DS2_Cocoai_8145dbfa-4f86-4212-9d2f-a5fc24a94040.jpg?v=1790650515","url":"https:\/\/www.innoplcsync.com\/products\/allen-bradley-1794-tb37ds-flex-i-o-terminal-base-unit","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}