Appendix: Optical Connector and Patch Cable
The optical port in the MMA1L10-CR 100GBASE-LR4 optical transceiver is a duplex LC receptacle.
The cable to use between transceivers of this type is a two-fiber single-mode cable, terminated in duplex LC connectors.
Two fiber single mode cable with duplex LC connectors
![image2021-9-14_18-53-59.png](https://docscontent.nvidia.com/dims4/default/2235304/2147483647/strip/true/crop/583x49+0+0/resize/583x49!/quality/90/?url=https%3A%2F%2Fk3-prod-nvidia-docs.s3.us-west-2.amazonaws.com%2Fbrightspot%2Fconfluence%2F00000187-94ca-d3c2-a7af-9fde5cab0000%2Fimages%2Fnetworking%2Fdownload%2Fattachments%2F58765403%2Fimage2021-9-14_18-53-59.png)
One fiber for transmitting, the other for receiving.