Initially, the X-BERT has been created to measure the bit error rate (BER) of a complete transceiver module or just the transmitters like lasers or receivers operating at data rates between 9.9 and 11.1Gbps with an option to go down to 8Gbps.
There are separate slots for the optical and electrical BER testers. Each slot provides a transmit and receive port. An internal pseudo random binary sequence (PRBS) generator and error detector computes the BER.
The externally referenced clock can be in the 10GHz range or 622MHz so that the operating data rate can match the applicable standards such as Sonet, Ethernet, Fiber Channel, FEC etc. A fixed frequency internal clock can also be used which provides a correlated 10GHz clock on the front panel.
For more information please visit our website www.bbnint.co.uk/instruments/fibre_optic_instruments.asp. |