{"product_id":"adtran-1291021l2-termination-unit-circuit-board","title":"ADTRAN 1291021L2 Termination Unit Circuit Board","description":"\u003cdiv\u003e\u003cp\u003eThe ADTRAN TRDDS-R 1291021L2 Termination Unit Circuit Board is a two-wire termination card designed for ADTRAN Total Reach DDS-R remote termination systems. This 1291021L2 circuit board is intended for indoor DDS deployments and fits in standard ADTRAN T200 or T400 shelves, or the single-mount housing 1212007L1, to terminate a DDS two-wire link at the remote end. As part of the TRDDS-R family, it provides termination for a DDS two-wire circuit and enables built-in testing capabilities to verify line integrity and performance, delivering data rates up to 64 kbps. The unit is span-powered, drawing operational power from the DDS network rather than requiring a separate local power source, which aligns with the architecture of Total Reach DDS-R installations. \u003c\/p\u003e\u003c\/div\u003e","brand":"ADTRAN","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657022243118,"sku":null,"price":196.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_357eb97d-f7fd-4f4a-9431-3eb4bbc8f3da.jpg?v=1769465276","url":"https:\/\/plgautomation.com\/products\/adtran-1291021l2-termination-unit-circuit-board","provider":"PLG Automation ","version":"1.0","type":"link"}