muxponder

In fiber-optic communications, a muxponder is the element that sends and receives the optical signal on a fiber in much the same way as a transponder except that the muxponder has the additional functionality of multiplexing multiple sub-rate client interfaces onto the line interface.[https://www.cisco.com/en/US/prod/collateral/optical/ps5725/ps2011/product_data_sheet0900aecd801d2889.html Muxponder]. Cisco.com. Retrieved July 2011[https://search.ciena.com/ciena/Muxponder Muxponder] Ciena.com. Retrieved July 2011