{"product_id":"allen-bradley-1756-cp3-logix-family-rs232-programmer-cable","title":"Allen-Bradley 1756-CP3 Logix Family RS232 Programmer Cable","description":"\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eAllen-Bradley 1756-CP3 Logix Family RS232 Programmer Cable\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003eConfigured for serial programming and controller-to-DTE communication in ControlLogix and Logix family systems, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1756-CP3\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003cstrong\u003e1756-CP3\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLogix Family RS232 Programmer Cable) provides direct physical electrical signal routing between Logix controllers and external programming or terminal devices over a 9-pin to 9-pin RS-232 interface across a 3 m (10 feet) link segment. The cable operates as a passive interconnect within the Logix communication stack, supporting redundant configuration environments and ControlNet-linked controller architectures.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-CP3\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a single fixed configuration part number with no documented suffix segmentation or functional variant matrix. It is supplied as a standardized Logix Family RS232 programmer cable assembly.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth class=\"last:pe-10\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\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\u003e1756-CP3\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\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.11 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e3 m (10 feet), 9-pin to 9-pin cable assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e5.1 W (cable dissipation equivalent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Type\u003c\/td\u003e\n\u003ctd\u003eRS-232 Programmer Cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Rate\u003c\/td\u003e\n\u003ctd\u003eUp to 5 Mbit\/s (ControlNet system context)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e970 mA at 5.1 VDC, 1.7 mA at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e17.4 BTU\/hr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eRedundant compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Width\u003c\/td\u003e\n\u003ctd\u003eLogix Family interface cable (Series A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAllen-Bradley ControlLogix Serial Communication Architecture\u003c\/h3\u003e\n\u003cp\u003eThe 1756-CP3 is integrated within the ControlLogix communication ecosystem where serial programming access is mapped through RS-232 DTE linkage paths. Within Allen-Bradley Logix platforms, backplane-to-communication module synchronization supports deterministic execution cycles over EtherNet\/IP or ControlNet, while the 1756-CP3 provides a physical-layer terminal access route for configuration, diagnostics, and controller-level programming operations.\u003c\/p\u003e\n\u003cp\u003eFirmware-level communication compatibility is maintained through Logix family controller stacks, enabling consistent configuration access behavior across redundant controller deployments and mixed communication topologies.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 1756-CP3 support hot-swap during active controller communication sessions?\u003cbr\u003eA: No hot-swap function is defined for RS-232 passive cable assemblies. Connection should be made only when controller serial port is in idle state to avoid frame corruption.\u003c\/p\u003e\n\u003cp\u003eQ: Does the cable affect backplane current or chassis load in ControlLogix systems?\u003cbr\u003eA: No direct backplane load is applied. However, system-level serial port interfacing may reflect minimal signaling current as specified by 5.1 VDC and 24 VDC reference inputs.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 1756-CP3 be used with EtherNet\/IP-only controllers?\u003cbr\u003eA: It is physically compatible only with RS-232 serial ports. EtherNet\/IP communication operates independently and does not use this cable path.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eEnsure RS-232 connector alignment is verified before insertion into Logix controller serial ports and DTE terminal devices. Maintain cable routing separation from high-frequency power conductors and inverter output lines to minimize induced noise on serial signaling pairs.\u003c\/p\u003e\n\u003cp\u003eShield continuity should be maintained across connector shells where applicable, with grounding performed at a single-point control cabinet earth reference. Avoid tight bend radius below standard RS-232 cable mechanical tolerance to prevent conductor fatigue over repeated maintenance cycles.\u003c\/p\u003e\n\u003cp\u003eDo not install under energized motion or high-vibration conditions without mechanical strain relief at both connector ends.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43578180534362,"sku":"1756-CP3","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1756-CP32.jpg?v=1782896713","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1756-cp3-logix-family-rs232-programmer-cable","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}