{"product_id":"abb-1mrk002311-aar02-relion-fiber-optic-communication-module","title":"ABB 1MRK002311-AAR02 Relion Fiber Optic Communication Module","description":"\u003cp\u003eThe \u003cstrong\u003eABB 1MRK002311-AAR02\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1MRK002311-AAR02\u003c\/strong\u003e Communication Module, operates as a dedicated hardware component for long-distance signal transmission within ABB REx670 V1.1 relay systems.\u003c\/p\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\u003e1MRK002311-AAR02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eStandard ABB Factory Specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eStandard Module Weight Class\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e18 cm x 12 cm x 4 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +70 deg C (-40 to +158 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Distance\u003c\/td\u003e\n\u003ctd\u003eUp to 20 km (12.4 miles)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Rate\u003c\/td\u003e\n\u003ctd\u003eUp to 10 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiber Cable Type\u003c\/td\u003e\n\u003ctd\u003eSingle-mode fiber optic cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eABB REx670 V1.1 Relion Relay Platforms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication Velocity and Deterministic Networks\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe ABB 1MRK002311-AAR02 interface card integrates directly with the main chassis backplane, maintaining backplane bus communication velocity for Real-time sub-station protection events.\u003c\/li\u003e\n\u003cli\u003eSingle-mode fiber optic channels execute deterministic network signal pass-through over extended distances without electromagnetic distortion.\u003c\/li\u003e\n\u003cli\u003eModule firmware flash compatibility ensures synchronized parameter updates and continuous optical transceiver link diagnostic reporting.\u003c\/li\u003e\n\u003cli\u003eInternal power isolation circuits ensure channel stability during fluctuating 24 VDC auxiliary supply conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the maximum recommended physical distance for the fiber optic link on the 1MRK002311-AAR02?\u003c\/p\u003e\n\u003cp\u003eA: The module supports single-mode fiber optic transmission distances up to 20 km (12.4 miles) at data rates up to 10 Mbps.\u003c\/p\u003e\n\u003cp\u003eQ: Is the 1MRK002311-AAR02 module compatible with multi-mode fiber optic cables?\u003c\/p\u003e\n\u003cp\u003eA: No, the optical transceivers on the 1MRK002311-AAR02 are calibrated specifically for single-mode fiber optic cabling.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eEnsure power to the host REx670 V1.1 relay chassis is de-energized before inserting or removing the 1MRK002311-AAR02 card. Use clean LC\/ST fiber optic connectors and verify that optical end-faces are clean and free of dust before mating. Observe minimum bending radius requirements for single-mode fiber cables to prevent signal attenuation and optical glass micro-cracks. Connect the 24 VDC external supply to designated terminals using grounded, shielded power cables.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":45320238760051,"sku":"1MRK002311-AAr02","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-08-06_15-07-11_9714c946-8113-491a-b937-d5635f80001d.png?v=1786000667","url":"https:\/\/www.dcssupplier.com\/ar\/products\/abb-1mrk002311-aar02-relion-fiber-optic-communication-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}