{"product_id":"allen-bradley-1756-synch-controllogix-synchlink-communication-module","title":"Allen-Bradley 1756-SYNCH ControlLogix SynchLink Communication Module","description":"\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nThe \u003cstrong\u003eAllen-Bradley 1756-SYNCH\u003c\/strong\u003e functions as a dedicated, high-speed fiber-optic communication interface that establishes deterministic data broadcasting and system clock synchronization across multiple control platforms. Designed to slot directly into any standard chassis assembly, this \u003cstrong\u003eSynchLink communication module\u003c\/strong\u003e enables peer-to-peer data consumption between independent controllers, allowing motion axis variables and drive coordination data to be transferred with minimal latency. By managing specialized fiber-optic frames via dedicated physical layer ports, the unit aligns the distributed system time bases required for highly integrated co-dependent automation processes.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1rem;\"\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eDeterministic Data Transfer\u003c\/strong\u003e: Delivers synchronous communications with a fixed frame transmission speed of 50 microseconds.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eFixed Data Throughput\u003c\/strong\u003e: Runs at a continuous SynchLink data rate of 5 Mbps for real-time motion and control distribution.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eOptical Multi-Chassis Linkage\u003c\/strong\u003e: Integrates 2 localized fiber-optic cable ports utilizing a 650 nm operating wavelength.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eOptimized Frame Architecture\u003c\/strong\u003e: Uses a highly structured frame layout containing 3 flag bytes, 1 control byte, 24 data bytes, and a 2-byte cyclic redundancy check (CRC) field for transmission verification.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003ePower Infrastructure Support\u003c\/strong\u003e: Engineered to interface seamlessly within backplanes powered by either standard or redundant power supply modules.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1rem;\"\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eMulti-chassis master\/slave system clock synchronization in high-speed manufacturing lines.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eCoordinated drive systems and real-time motion control distribution across separated industrial racks.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eInter-controller consumption of critical motion axis variables without traditional network bandwidth overhead.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d; text-align: left;\"\u003e\n        \u003cth style=\"padding: 0.5rem; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 0.5rem; font-weight: bold;\"\u003eSpecification\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eModel Part Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e1756-SYNCH\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eModule Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eSynchLink Communication Module\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eProduct Line\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eControlLogix\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eGTIN\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e10612598275301\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eUPC\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e10612598307699\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eData Rate \/ Baud Rate\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e5 Mbps\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eOperating Wavelength\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e650 nm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eFrame Processing Speed\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e50 us\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eBackplane Current Draw (5.1V DC)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e1200 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eBackplane Current Draw (24V DC)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e3 mA (User text context indicates up to 3 mA; raw source parameters note 2.5 mA)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003ePower Dissipation (Max)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e6.2 W\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eThermal Dissipation\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e21.2 BTU\/hr\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eFiber Medium Compatibility\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e200-230 micron Hard-Clad Silica (HCS) cable\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eFiber Termination Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eVersalink V-System\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003ePermissible Cable Length Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 1 - 300 m;\"\u003e1 - 300 m\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eInternal Target Wire Size\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e20 AWG\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eOperating Enclosure Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eNone (open-style)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eOperating Temperature Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e0 Celsius to 60 Celsius (32 Fahrenheit to 140 Fahrenheit)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eOperating Shock Limits\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e30g\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eUnited States \/ USA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e1.00 lbs (0.45 kg)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e21.5 x 14.0 x 4.8 cm (8.46 x 5.51 x 1.89 in.)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nThe 1756-SYNCH module establishes explicit physical-layer communication configurations that dictate the use of specialized 200-230 micron Hard-Clad Silica (HCS) glass lines with Versalink V-System termination. It cannot be directly substituted with standard multi-mode or single-mode LC\/ST telecommunication fiber interfaces. For specific layout extensions, approved functional accessories include the 1403-CFxxx fiber-optic pre-assembled cable layouts or the simplex 200 um HCP-M0200T V01RK raw cable lines.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nA major installation risk involves ignoring fiber-optic link attenuation limits across long physical spans up to the 300 m cap. Ensure the core fiber run is free from tight routing bends that violate minimum radius restrictions, as micro-bending causes massive light loss at the 650 nm operating wavelength, throwing CRC link faults inside the frame parameter checker. Ambient particulates also threaten the interface; because the module uses an open enclosure design, deploying this unit in environments that do not meet clean, dry industrial specifications will foul the transceiver ports, destabilizing the 50 us clock alignment loop.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem; margin-top: 1.5rem; margin-bottom: 1rem;\"\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e Isolate and completely cut off all primary electrical utilities feeding the hosting control chassis backplane before sliding or uncoupling the communication assembly. Handling module insertion steps while the rack contains active residual voltage risks triggering unexpected backplane noise spikes, communication drops on adjacent nodes, or component degradation.\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-right: 0.75rem; margin-top: 0.1rem;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eIdentify an open slot inside the designated ControlLogix chassis and inspect the internal backplane connector pins for structural alignment.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-right: 0.75rem; margin-top: 0.1rem;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eAlign the module circuit board with the top and bottom card guides of the chosen slot tracking.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-right: 0.75rem; margin-top: 0.1rem;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003ePress the module firmly into the slot until the top and bottom housing tabs snap securely flush with the chassis frame.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-right: 0.75rem; margin-top: 0.1rem;\"\u003e4\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eRemove the protective dust caps from the 2 optical ports and clean the transceivers before inserting the Versalink V-System fiber terminations.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-right: 0.75rem; margin-top: 0.1rem;\"\u003e5\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eSecure the fiber-optic cabling in the wire ducting, verifying that the physical link length remains between 1 m and 300 m without strict bends.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695183163755,"sku":"1756-SYNCH","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1756-synch-synchlink-communication-module-egv5mzyonjk_6dbb8eb1-5aba-4032-83b2-889d4a0e4d4d.jpg?v=1766114367","url":"https:\/\/www.plcprotech.com\/products\/allen-bradley-1756-synch-controllogix-synchlink-communication-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}