Ciena 136-0010-803 Rear T1-16 IOA Module For Edge Director 500

The Ciena 136-0010-803 Rear T1-16 IOA Module is a rear IOA card designed for the Edge Director 500 chassis, delivering sixteen T1 interfaces to enable multiple T1 service connections at the network edge. In addition to 136-0010-803, this part is listed under alternate identifiers 136-0010-900 and 036-0010-900RA Rev A, reflecting documentation variations found in supplier catalogs and marketplaces. In reseller inventories, including platforms like eBay and other used-gear outlets, the module is commonly sold as a used item compatible with Edge Director 500 deployments. This IOA module slots into the Edge Director 500 to provide the I/O path required for integrating legacy T1 services within Ciena's edge transport framework.