{"product_id":"honeywell-51305072-400-clcnio-circuit-board","title":"Honeywell 51305072-400 CLCNIO Circuit Board","description":"\u003ch1\u003eHoneywell 51305072-400 CLCNIO Circuit Board\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eHoneywell 51305072-400\u003c\/strong\u003e is a CLCNIO (Coaxial Local Control Network Input\/Output) circuit board designed for Honeywell Local Control Network (LCN) architectures. The board provides the interface between node-level processing hardware and the shared coaxial LCN communication backbone, supporting redundant network operation and continuous data exchange within Honeywell control system environments.\u003c\/p\u003e\n\u003ch3\u003eLCN Communication Function\u003c\/h3\u003e\n\u003cp\u003eThe CLCNIO board serves as the network interface layer between a local control node and the Honeywell LCN infrastructure. It enables communication between node processors and the shared coaxial network used for system-wide data transfer.\u003c\/p\u003e\n\u003cp\u003eBy managing network connectivity at the node level, the board supports communication across the control system while maintaining compatibility with legacy Honeywell LCN architectures.\u003c\/p\u003e\n\u003ch3\u003eRedundant Network Architecture\u003c\/h3\u003e\n\u003cp\u003eThe module supports dual redundant communication paths through:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eLCN A network channel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLCN B network channel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe board automatically manages communication between these redundant channels. If the active network path becomes unavailable, the module can switch communication to the alternate network channel, helping maintain continuous system communications.\u003c\/p\u003e\n\u003ch3\u003eNode Identification and Addressing\u003c\/h3\u003e\n\u003cp\u003eThe CLCNIO board requires a dedicated physical address plug or address pack to establish the node identity on the Local Control Network.\u003c\/p\u003e\n\u003cp\u003eThis addressing mechanism enables the control system to recognize and communicate with the installed node while maintaining the network topology defined within the Honeywell architecture.\u003c\/p\u003e\n\u003ch3\u003eChassis Integration\u003c\/h3\u003e\n\u003cp\u003eThe board is designed for installation within Honeywell LCN chassis systems and supports:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eStandard 5-slot Honeywell chassis\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStandard 10-slot Honeywell chassis\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIts single-slot card format allows installation as part of existing Honeywell control system hardware without external network interface assemblies.\u003c\/p\u003e\n\u003ch3\u003eLegacy System Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe 51305072-400 is associated with Honeywell control system environments that utilize Local Control Network technology.\u003c\/p\u003e\n\u003cp\u003eThe board is identified for use in:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eHoneywell TDC 3000 systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eExperion PKS environments incorporating legacy LCN infrastructure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn these applications, it functions as a communication interface between node electronics and the coaxial control network.\u003c\/p\u003e\n\u003ch3\u003eServiceability and Maintenance\u003c\/h3\u003e\n\u003cp\u003eThe module supports online replacement in properly configured redundant systems. When approved maintenance procedures are followed, replacement can be performed without interrupting overall system control functions.\u003c\/p\u003e\n\u003cp\u003eActual maintenance practices should follow the requirements of the installed Honeywell control system configuration.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable class=\"___1vyiefv f1ddd56o f16vktn6 f1ahpp82 f11qra4b f1uinfot fibjyge fvueend f9yszdx f1fu4s3n f3l3pb3 f10ghnd0 f8fmt76 fjvbh62 f1qrqxae f1vw5qpk fc02sbz fxawf59 fymf513 f1aoyrul f1el8yx3 f1pymoxg f1ofu761 fe6itr f7coize f1794535 f1o0pw0q fbjjl9v fk1v6el f16pyhcb f1ixlhx9 f12zef0i flu5r5u f19haqzy f1owmcxx f1oddm8q f1004tna fcoaxci fh0ee9u f15v23i2 f1dmj53 f1r1gcv9 f14z1veh ffufd3x f1ypplot f1660cg\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e51305072-400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eCLCNIO Circuit Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent Name\u003c\/td\u003e\n\u003ctd\u003eCoaxial Local Control Network Input\/Output Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Architecture\u003c\/td\u003e\n\u003ctd\u003eHoneywell TDC 3000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Architecture\u003c\/td\u003e\n\u003ctd\u003eExperion PKS with Legacy LCN Integration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Channels\u003c\/td\u003e\n\u003ctd\u003eDual Redundant (LCN A and LCN B)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Interface\u003c\/td\u003e\n\u003ctd\u003eCoaxial Network Connection via Chassis\/Backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis Compatibility\u003c\/td\u003e\n\u003ctd\u003eHoneywell 5-Slot and 10-Slot LCN Chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAddressing Method\u003c\/td\u003e\n\u003ctd\u003ePhysical Address Plug\/Pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy Support\u003c\/td\u003e\n\u003ctd\u003eAutomatic Channel Switchover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHot Swap Capability\u003c\/td\u003e\n\u003ctd\u003eSupported in Redundant Configurations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Weight\u003c\/td\u003e\n\u003ctd\u003e136 g (0.30 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm Factor\u003c\/td\u003e\n\u003ctd\u003eHoneywell Proprietary Single-Slot Card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eNetwork Role\u003c\/h3\u003e\n\u003cp\u003eUnlike conventional I\/O modules that directly acquire process signals, the 51305072-400 functions as a network communication interface board. Its primary responsibility is maintaining connectivity between node hardware and the Honeywell coaxial Local Control Network, making it an infrastructure component within the control system architecture.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the primary purpose of the 51305072-400 CLCNIO board?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The board interfaces a Honeywell control node with the Local Control Network (LCN), providing communication between node processors and the shared coaxial network backbone.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the board support redundant network operation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes. The module supports dual redundant communication channels identified as \u003cstrong\u003eLCN A\u003c\/strong\u003e and \u003cstrong\u003eLCN B\u003c\/strong\u003e, with automatic switchover capability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the 51305072-400 be replaced while the system is operating?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: According to the supplied information, online replacement is supported in properly configured redundant systems when approved maintenance procedures are followed.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":67752639463523,"sku":"51305072-400","price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/2775\/3315\/files\/80360230-001_1.png?v=1792050557","url":"https:\/\/precisemodule.com\/products\/honeywell-51305072-400-clcnio-circuit-board","provider":"Precise Module Ltd.","version":"1.0","type":"link"}