{"product_id":"allen-bradley-1734-ob4-point-i-o-digital-output-module","title":"Allen-Bradley 1734-OB4 POINT I\/O Digital Output Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1734-OB4\/C\u003c\/strong\u003e serves as the primary \u003cstrong\u003e1734-OB4\u003c\/strong\u003e Digital Output Module utilized to execute 24 VDC current sourcing switching across POINT I\/O distributed network platforms.\u003c\/p\u003e\n\u003ch3\u003eNomenclature Breakdown and Hardware Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1734-OB4: Base module configuration for 4-point digital current sourcing output\u003c\/li\u003e\n\u003cli\u003e1734OB4: Typographical standard string without separation hyphens\u003c\/li\u003e\n\u003cli\u003e1734-OB4\/C: Specific hardware manufacturing sequence denoting Series C revision\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specification Parameters\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\u003e1734-OB4\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\u003eSingapore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.1 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e2.5 cm x 7.6 cm x 5.1 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +55 deg C (standard operational range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eLogic power drawn from internal POINTBus communication backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eDigital current sourcing configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Density\u003c\/td\u003e\n\u003ctd\u003e4 independent output points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal field power rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm Factor\u003c\/td\u003e\n\u003ctd\u003eOpen style DIN rail mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Network Velocity and I\/O Scaling\u003c\/h3\u003e\n\u003cp\u003eThe module communicates via the backplane bus communication velocity framework, establishing deterministic data transfer intervals between the physical output terminals and the central processing unit. Backplane bus communication velocity handles discrete state updates within fixed scan cycles, preserving loop timing synchronization across distributed rack expansions on EtherNet\/IP deterministic networks. I\/O density scaling allows seamless integration of this 4-channel card alongside specialized analog modules without violating POINTBus current loading limits or introducing protocol conversion latencies. Firmware flash compatibility is managed through system software tools to maintain baseline operational stability across revision changes without hardware removal.\u003c\/p\u003e\n\u003ch3\u003ePackage Ordering Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Allen-Bradley 1734-OB4 Digital Output Module\u003c\/li\u003e\n\u003cli\u003e1 x Field Wiring Base Assembly (compatible series)\u003c\/li\u003e\n\u003cli\u003e1 x Technical Hardware Installation Sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eChassis and DIN Rail Mounting\n\u003cul\u003e\n\u003cli\u003ePosition the module and terminal base directly onto a 35 mm DIN rail structure within a grounded industrial enclosure.\u003c\/li\u003e\n\u003cli\u003eSlide the unit horizontally until the locking latch engages mechanically with adjacent terminal bases to complete the backplane connection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003ePhysical Wiring Practices\n\u003cul\u003e\n\u003cli\u003eTerminate the field side 24 VDC output conductors into the removable terminal block mechanism.\u003c\/li\u003e\n\u003cli\u003eSeparate low-voltage direct current output wiring paths from alternating current main lines to suppress electromagnetic interference coupling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Technical Inquiries\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eQ: How many discrete switching channels does this hardware module provide?\u003c\/li\u003e\n\u003cli\u003eA: The hardware incorporates 4 separate digital output channels operating in a current sourcing configuration.\u003c\/li\u003e\n\u003cli\u003eQ: What is the nominal operating voltage required for the field-side output circuits?\u003c\/li\u003e\n\u003cli\u003eA: The output channels are engineered to switch 24 VDC nominal loads in typical industrial automation control loops.\u003c\/li\u003e\n\u003cli\u003eQ: Are the field wiring connections isolated from the internal logic circuits?\u003c\/li\u003e\n\u003cli\u003eA: Yes, opto-electrical isolation is implemented to separate the field terminal voltage from the sensitive backplane logic.\u003c\/li\u003e\n\u003cli\u003eQ: Does this architecture support hot-swapping during active machine operation?\u003c\/li\u003e\n\u003cli\u003eA: The POINT I\/O backplane supports live insertion and removal, though safety protocols and area classifications must be evaluated first.\u003c\/li\u003e\n\u003cli\u003eQ: How does the unit physically secure inside the control cabinet?\u003c\/li\u003e\n\u003cli\u003eA: The component is strictly designed for physical mounting onto a standardized 35 mm DIN rail bracket.\u003c\/li\u003e\n\u003cli\u003eQ: What is the designated manufacturing origin for this specific module batch?\u003c\/li\u003e\n\u003cli\u003eA: The manufacturing origin for this hardware component is listed as Singapore.\u003c\/li\u003e\n\u003cli\u003eQ: Can this open-style module be installed directly outdoors without an enclosure?\u003c\/li\u003e\n\u003cli\u003eA: No, open-style equipment requires placement inside a dedicated cabinet providing minimum IP54 environmental ingress protection.\u003c\/li\u003e\n\u003cli\u003eQ: How is the logic circuitry powered if no direct power terminals exist on the module?\u003c\/li\u003e\n\u003cli\u003eA: Logic operating power is supplied internally through the POINTBus backplane connection managed by the system network adapter.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066400100525,"sku":"1734-OB4","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1734-OB4_24.jpg?v=1785122727","url":"https:\/\/www.maxwellplc.com\/ga\/products\/allen-bradley-1734-ob4-point-i-o-digital-output-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}