{"product_id":"abb-gjr5251000r0303-07-kp-90-ac31-communication-coupler","title":"ABB GJR5251000R0303 07 KP 90 AC31 Communication Coupler","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eABB 07 KP 90\u003c\/strong\u003e (Order Code: \u003cstrong\u003eGJR 525 1000 R0303\u003c\/strong\u003e) is a \u003cstrong\u003eCommunication Coupler\u003c\/strong\u003e designed for integration within the ABB Advant Controller 31 (AC31) automation platform. Functioning as a dedicated protocol interface, this module enables structured data exchange across industrial networks using the RCOM communication protocol.\u003c\/p\u003e\n\u003cp\u003eOperating on a standard 24 V d.c. auxiliary supply, the \u003cstrong\u003e07 KP 90\u003c\/strong\u003e facilitates flexible network topologies by supporting both master and slave interface configurations. It allows central AC31 controllers to link with remote stations, field devices, and secondary control systems over dedicated serial communication lines.\u003c\/p\u003e\n\u003cp\u003eBy offloading protocol management from the main processing unit, the \u003cstrong\u003eABB 07 KP 90\u003c\/strong\u003e maintains deterministic bus communication and reliable data throughput across distributed control architectures. Its compact unit footprint integrates directly into standard AC31 rack configurations.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt-in RCOM protocol engine for deterministic network communication.\u003c\/li\u003e\n\u003cli\u003eConfigurable master and slave operational modes on the RCOM interface.\u003c\/li\u003e\n\u003cli\u003eDirect integration into ABB Advant Controller 31 (AC31) 90 Series architectures.\u003c\/li\u003e\n\u003cli\u003eOperating voltage requirements met via standard 24 V d.c. power connection.\u003c\/li\u003e\n\u003cli\u003eLightweight 0.450 kg construction designed for industrial cabinet mounting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaster\/slave network coupling across ABB AC31 programmable logic controller networks.\u003c\/li\u003e\n\u003cli\u003eRemote station communication and telemetry in distributed water, energy, or infrastructure installations.\u003c\/li\u003e\n\u003cli\u003eProtocol interfacing between central control nodes and sub-distribution panels.\u003c\/li\u003e\n\u003cli\u003eRetrofit, maintenance, and expansion of legacy Advant Controller 31 automation systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ch4\u003eGeneral\u003c\/h4\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e07 KP 90\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrder Code\u003c\/td\u003e\n\u003ctd\u003eGJR 525 1000 R0303\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eCommunication Coupler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003eAdvant Controller 31 (AC31) \/ 90 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch4\u003eElectrical \u0026amp; Communication\u003c\/h4\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e24 V d.c.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Protocol\u003c\/td\u003e\n\u003ctd\u003eRCOM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Mode\u003c\/td\u003e\n\u003ctd\u003eMaster \/ Slave configurable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch4\u003ePhysical Attributes\u003c\/h4\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.450 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-Installation Checks:\u003c\/strong\u003e Verify the order code (GJR 525 1000 R0303) and ensure the system power supply is turned off before insertion or removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Secure the module into the designated slot of the AC31 base rack or mounting assembly, ensuring panel locking mechanisms engage fully.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Connection:\u003c\/strong\u003e Connect the regulated 24 V d.c. power lines to the appropriate supply terminals, paying close attention to polarity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication Cable Routing:\u003c\/strong\u003e Route the RCOM communication lines away from high-voltage power cables to prevent electromagnetic interference. Ensure proper shield grounding at the designated system tie points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitial Power-Up:\u003c\/strong\u003e Apply power and monitor the front-panel status indicators to confirm module initialization and bus activity.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eConfiguration \/ Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNode \u0026amp; Mode Setup:\u003c\/strong\u003e Ensure the module address and master\/slave mode settings are assigned in accordance with the project's RCOM network map.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Backup:\u003c\/strong\u003e Prior to replacing an active unit, upload or verify the host controller's configuration and network address parameters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement Procedure:\u003c\/strong\u003e Power down the system segment, disconnect the terminal connections, release the unit from the mounting rack, install the replacement module, and restore communication links before applying 24 V d.c. power.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":52701957554539,"sku":"GJR5251000R0303","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/gjr5251000r0303-5r1rxws3fue_c0464d48-6e3d-4220-be45-53bfe34ae457.jpg?v=1766478124","url":"https:\/\/www.plcprotech.com\/products\/abb-gjr5251000r0303-07-kp-90-ac31-communication-coupler","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}