Hi,
The QSFP 100G PSM4 converts parallel electrical input signals into parallel optical signals by the Layser Array and then transmitted in parallel on the MTP/MPO single mode ribbon fiber. Upon reaching the receiving termination, the PIN array converts the parallel optical signals into parallel electrical signals.
Finisar FTLF1432P3BCV compatible
References:
http://gbic.xobor.de/t7f52052-What-are-the-different-types-of-QSFP.html#msg6387057
https://group7galactic.gamerlaunch.com//forums/viewtopic.php?p=40206234&gid=480635#40206234
https://anotepad.com/note/read/867chrcw
https://fundrazr.com/profiles/gbic-shop-2
Thanks