CDR is mainly to extract the data sequence from the received signal, and restore the clock timing signal corresponding to the data sequence, thereby restoring the specific information received.
CDR bandwidth is an important indicator of CDR. It mainly affects the data lock time and jitter index of the optical module, which determines the key performance of the optical module.
The difference between DWDM with CDR and without CDR:
(1) The transceiver with CDR has the functions of clock retiming and signal shaping, so the signal will be better.
(2) Generally, CDR are mostly used in high-speed, long-distance transmission optical modules.
Therefore, by default SFP+ modules don't have CDR, and XFP modules must have CDR.
(3) For transceivers used on a switch, there is little difference between the two. You can choose with CDR or without CDR.
HTF is a professional manufacture of optical transceiver, you can check the features of 10G SFP+ DWDM with CDR.
If need to know more about optical transceiver with CDR, please contact our team:
Email/Skype: melanie@htfuture.com
Wechat/Whatsapp: +86 18111245405
