{"product_id":"allen-bradley-1745-c3-a-plc-expansion-interconnect-cables","title":"Allen Bradley 1745-C3 A PLC Expansion Interconnect Cables","description":"\u003cp\u003eConfigured for interconnecting high-speed input modules to expansion units in Allen-Bradley SLC 150 platforms, the \u003cstrong\u003eAllen-Bradley 1745-C3 A\u003c\/strong\u003e (\u003cstrong\u003e1745-C3 A\u003c\/strong\u003e PLC Interconnect Cable) provides direct physical\/electrical execution.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eBase Catalog Number\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eRevision Suffix\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eConnection Interface\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eCable Length\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1745-C3\u003c\/td\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003ctd\u003e20-Pin to 10-Pin\u003c\/td\u003e\n\u003ctd\u003e18.5 in\u003c\/td\u003e\n\u003ctd\u003eHigh Speed Input Module to Expansion Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003e1745-C3 A\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\u003e0.04 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e18.5 in length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive (0 W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Type\u003c\/td\u003e\n\u003ctd\u003e20-Pin to 10-Pin Interconnect Cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductor Configuration\u003c\/td\u003e\n\u003ctd\u003eTwisted Pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Rating\u003c\/td\u003e\n\u003ctd\u003e70 V max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eSLC 150 High Speed Input Module \/ Expansion Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eAllen-Bradley Technical Characteristics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Bus Communication Velocity\u003c\/strong\u003e: The 1745-C3 A utilizes twisted-pair signal routing across a 20-pin to 10-pin interface layout, minimizing crosstalk and signal propagation delay between high-speed input hardware and expansion backplane logic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI\/O Density Scaling\u003c\/strong\u003e: Enables modular system expansion by connecting high-speed input functions directly to downstream expansion units without signal attenuation or deterministic execution delays.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 1745-C3 A cable be hot-swapped while the SLC 150 processor unit is powered? A: No. The 1745-C3 A carries critical backplane signal paths between modules. Disconnecting or connecting this assembly under power can cause CPU fault states, logic disruption, or electrical stress on internal components.\u003c\/p\u003e\n\u003cp\u003eQ: What is the maximum voltage rating for the 1745-C3 A interconnect cable conductors? A: The conductors within the 1745-C3 A assembly are rated for a maximum line voltage of 70 V max.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 1745-C3 A cable be modified or extended for longer cable runs? A: No. Extending or splicing the 1745-C3 A alters line impedance and propagation delay, which degrades deterministic communication velocity and high-speed pulse processing across the backplane bus.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eIsolate primary system power from the SLC 150 processor and all associated expansion chassis before installing or removing the 1745-C3 A cable.\u003c\/li\u003e\n\u003cli\u003eVerify pin orientation on both the 20-pin header and 10-pin connector prior to insertion to prevent pin deformation or misaligned contact seating.\u003c\/li\u003e\n\u003cli\u003eEnsure the cable route maintains a minimum bend radius of 1.0 in (25.4 mm) to avoid strain on termination points.\u003c\/li\u003e\n\u003cli\u003eSeparate the interconnect cable from high-voltage AC conductors, motor output wiring, and heavy inductive loads to prevent noise coupling.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45338801963123,"sku":"1745-C3 A","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-08-10_14-21-28.png?v=1786343909","url":"https:\/\/www.dcssupplier.com\/ar\/products\/allen-bradley-1745-c3-a-plc-expansion-interconnect-cables","provider":"DcsSupplier Limited","version":"1.0","type":"link"}