{"product_id":"allen-bradley-1756-cpr2-controllogix-controlnet-redundant-cable","title":"Allen-Bradley 1756-CPR2 ControlLogix ControlNet Redundant Cable","description":"\u003ch2 style=\"color: #1976d2; font-weight: bold; font-size: 1.6em; margin-bottom: 15px;\"\u003e\n  \u003cspan style=\"color: #1976d2; font-weight: bold;\"\u003eAllen-Bradley 1756-CPR2\u003c\/span\u003e ControlLogix ControlNet Cable Module\n\u003c\/h2\u003e\n\n\u003cp style=\"font-size: 1em; line-height: 1.5; color: #333; margin-bottom: 20px;\"\u003e\n  The module functions as a specialized communication link component engineered to interface high-speed ControlNet media lines inside an Allen-Bradley ControlLogix chassis. Occupying a single slot width, this intelligent media tap assembly supports deterministic 5 Mbps network networks, drawing 970 milliamps from the 5.1V DC backplane to manage redundant processing paths across distant physical locations using flexible 3-foot or 10-foot coaxial cabling configurations.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1976d2; font-weight: bold; font-size: 1.3em; margin-top: 20px; margin-bottom: 10px;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 20px; font-size: 0.95em;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; font-weight: bold; color: #333; width: 40%;\"\u003eManufacturer\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; color: #555;\"\u003eAllen-Bradley (Rockwell Automation)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; font-weight: bold; color: #333;\"\u003eProduct Model \/ Part Number\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; color: #555;\"\u003e1756-CPR2\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; font-weight: bold; color: #333;\"\u003eSystem Line Series\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; color: #555;\"\u003eControlLogix System Base\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; font-weight: bold; color: #333;\"\u003eComponent Interface Profile\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; color: #555;\"\u003eControlNet Communication Cable Connection Module\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; font-weight: bold; color: #333;\"\u003eNetwork Transmission Rate\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; color: #555;\"\u003e5 Mbps high-speed deterministic bus profile\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; font-weight: bold; color: #333;\"\u003eBackplane Current Draw (5.1V)\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; color: #555;\"\u003e970 mA (milliamps) logic logic load\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; font-weight: bold; color: #333;\"\u003eBackplane Current Draw (24V)\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; color: #555;\"\u003e1.7 mA (milliamps) auxiliary load\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; font-weight: bold; color: #333;\"\u003ePower \u0026amp; Thermal Loading\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; color: #555;\"\u003e5.1 Watts power dissipation | 17.4 BTU\/hour thermal dissipation loading\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; font-weight: bold; color: #333;\"\u003eChassis Space Occupancy\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; color: #555;\"\u003e1-Slot width form factor\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; font-weight: bold; color: #333;\"\u003eSupported Cable Lengths\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; color: #555;\"\u003e3 feet (0.91 meters) \/ 10 feet (3 meters) dedicated extensions\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; font-weight: bold; color: #333;\"\u003eHardware Net Weight\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; color: #555;\"\u003e0.28 kg \/ 0.62 lbs typical structural assembly mass\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"color: #1976d2; font-weight: bold; font-size: 1.3em; margin-top: 20px; margin-bottom: 10px;\"\u003eQuick Installation Guide\u003c\/h3\u003e\n\u003cul style=\"padding-left: 20px; line-height: 1.5; color: #333; margin-bottom: 20px;\"\u003e\n  \u003cli style=\"margin-bottom: 6px;\"\u003eTurn off all power feeding the target ControlLogix chassis rack before attempting to insert or remove communication components.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 6px;\"\u003eAlign the circuit board track constraints of the 0.28 kg 1756-CPR2 module with the selected single-slot location guides.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 6px;\"\u003ePress the 0.28 kg assembly inward until the top and bottom structural locking tabs click firmly into place against the chassis frame.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 6px;\"\u003eAttach the dedicated 3-foot or 10-foot ControlNet coaxial network connection links, securing the layout lines away from adjacent high-voltage AC cables to limit noise coupling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1976d2; font-weight: bold; font-size: 1.3em; margin-top: 20px; margin-bottom: 10px;\"\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 10px; color: #333; line-height: 1.5;\"\u003e\n  \u003cstrong\u003eQ1: Why does the 1756-CPR2 link require a continuous 970 mA current draw from the 5.1V backplane?\u003c\/strong\u003e\u003cbr\u003e\n  A1: The 970 mA load handles the high-frequency transceiver electronics needed to sustain a stable 5 Mbps transmission rate across long distances. This steady current consumption guarantees the signal amplitude remains clear and deterministic even when switching between primary and redundant network lines.\n\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 10px; color: #333; line-height: 1.5;\"\u003e\n  \u003cstrong\u003eQ2: How does the compact 0.28 kg physical form factor affect layout constraints in dense chassis spaces?\u003c\/strong\u003e\u003cbr\u003e\n  A2: A low 0.28 kg physical mass matches its single-slot width profile, allowing it to easily mount into any available location on the backplane without causing structural line stress. This lightweight design helps the module withstand environmental vibrations while producing a moderate 17.4 BTU\/hour thermal output.\n\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 10px; color: #333; line-height: 1.5;\"\u003e\n  \u003cstrong\u003eQ3: Can standard off-the-shelf BNC cables substitute for the 3-foot or 10-foot ControlNet cables?\u003c\/strong\u003e\u003cbr\u003e\n  A3: No. The 1756-CPR2 module relies on specific characteristic impedance values found in certified 3-foot and 10-foot ControlNet cable variants. Relying on uncertified consumer coaxial lines can introduce impedance mismatches and data reflection anomalies, which degrade the 5 Mbps signal quality and trigger packet drops.\n\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51047653376132,"sku":"1756-CPR2","price":184.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/1756-CPR2.jpg?v=1782831575","url":"https:\/\/www.etowonauto.com\/vi\/products\/allen-bradley-1756-cpr2-controllogix-controlnet-redundant-cable","provider":"Etowon Auto","version":"1.0","type":"link"}