When the 2M clock signals need to be transmitted or the IEEE 1588V2 function needs to be supported,  the external clock is needed to be input through    clock interface.

In the OptiX OSN 8800 T32 and T64, the TN52STG/TNK2STG does not have clock interface, the external clock is input on the STI board.

In the OptiX OSN 6800, the STI board is not supported , and the TN11STG that used in the 6800 has clock interfaces, so the external clock is input on the STG board.

NB: This topic was posted in GS office.

     But now re-posting here, because I think it is the appropriate group

Great! Thanks for share this info!

Thank you for sharing.

Good info, thanks for sharing.