Originally posted by nfcphoneman:
If you choose to go with single-mode, you'll need to make sure you have the proper testing equipment. You cannot test SM with a MM light-source.
-Larry
To expand on what Larry said, your same light source that you use for 62.5 can be used for 50 micron fiber. You just need to match the correct patch to the corresponding fiber; 62.5 cord to 62.5 fiber...
