{"product_id":"6393","title":"Cisco AX-CESM-8T1","description":"\u003cp\u003e\r\nCISCO AX-CESM-8T1, 800-02750-03, 8200 8800 8850 8890 MGX 8200 8 port T1 front card CISCO CESM AX-CESM-8T1\r\n\u003c\/p\u003e\r\n\u003cp\u003e\r\nThe Cisco T1\/E1 circuit emulation service modules (CESMs) are designed for use with the MGX 8230, MGX 8250 series wide-area edge switches. The CESM-8T1 and CESM-8E1 offer eight T1s or E1s for structured and unstructured circuit services over an ATM backbone for the new world of data networking.The CESM provides constant-bit-rate (CBR) services over an ATM network. It allows circuit-based equipment, such as PBXs, to be interconnected over an ATM backbone via CBR connections. The current CESM-8 supports both channelized (n x 64 Kbps) and unchannelized (T1\/E1) circuit-based equipment. In ATM Forum terminology, the terms structured data transfer (SDT) and unstructured data transfer (UDT) are used for channelized and unchannelized circuit emulation, respectively.\r\n\u003c\/p\u003e\r\n","brand":"Cisco","offers":[{"title":"Used","offer_id":31557924192338,"sku":"63936","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/9803\/8866\/products\/Cisco_BAI4FH0DAB_REFURB_1.jpg?v=1575624028","url":"https:\/\/nwrusa.com\/products\/6393","provider":"NW Remarketing Inc","version":"1.0","type":"link"}