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✉  INQUIRE NOW SIEMENS · SCALANCE X-500 Media Modules 6GK5991-2AC00-8AA0 MM991-2LD Optical Media Module MANUFACTURERSiemens MODEL6GK5991-2AC00-8AA0 PART NUMBER6GK5991-2AC00-8AA0 PRODUCT TYPEMM991-2LD Optical Media Module SYSTEM FAMILYSCALANCE X-500 Media Modules ORDER SUPPORTModel Verification INDUSTRIAL AUTOMATION SPARE PARTS PARTNER 20 Years of Experience in Industrial Automation Supply AMIKON supplies industrial automation spare parts to maintenance, engineering and procurement teams worldwide. Our focus includes discontinued and hard-to-find DCS, PLC and TSI components, helping customers identify the correct model, source replacement parts and support urgent maintenance requirements. Discontinued Parts SourcingModel Identification SupportGlobal Customer SupportIn-Stock Supply Support .pro_table>ul.clearfix{display:none!important} a.inquiry_pro{display:none!important} .pro_main_title{display:none!important} @media(max-width:900px){.dsqc-inquire-top{position:static!important;margin:0 24px 22px!important;}} span.ms_btn{font-size:0!important;}span.ms_btn input{display:none!important;}span.ms_btn a.amikon-email-submit{display:inline-block;padding:12px 18px;background:#642981;color:#fff!important;text-decoration:none;font-family:Arial,Helvetica,sans-serif;font-size:14px;font-weight:700;text-transform:uppercase;} (function(){function setEmailButton(){var b=document.querySelector("span.ms_btn");if(!b||b.querySelector("a.amikon-email-submit"))return;var a=document.createElement("a");a.className="amikon-email-submit";a.href="mailto:sales7@amikon.cn?subject=Inquiry%20for%20Siemens%206GK5991-2AC00-8AA0";a.innerHTML="✉  SUBMIT";b.appendChild(a);}if(document.readyState==="loading"){document.addEventListener("DOMContentLoaded",setEmailButton);}else{setEmailButton();}setTimeout(setEmailButton,500);})();