25G SFP28 ZR 1310nm 80km

Ascent’s SFP28-25LP-31-80 optical transceiver supports high-speed serial links over Single Mode (SM) optical fiber at signal rates up to 25.78 Gb/s. The product is compliant with Small Form Pluggable industry agreements SFP and SFP28 for mechanical and low-speed electrical specifications. It is intended for use in interconnect applications between data centers with switches, routers, storage equipment etc. The optical performance supports distances up to 80km. The transmitter side of the module incorporates one 1310 nm EML and CDR integrated with the EML driver to transport a 25G Ethernet signal and the receiver side is integrated with SOA and PIN- TIA followed by Rx CDR. As stipulated by the 25G Ethernet standards, Forward Error Correction (FEC) is required to be implemented by the host equipment to ensure reliable system operation. The optical parameters below will provide a bit error ratio (BER) of 5 x 10E-5 for 25G Ethernet. FEC will provide the required quality for secure service. The electrical interface is according to 25GAUI specifications per IEEE 802.3cc. Digital diagnostic monitoring information (DDMI) is present in this module per the requirements of SFF-8472, providing real- time monitoring information of transceiver laser, receiver, and environment conditions over an SFF-8419 2-wire serial interface.