2-pair is just about gone from the market.
The last time I purchased CommScope 4-pair CAT3 cable, I found out that the company no longer manufactures low pair count CAT3. Now they take CAT5 cable that fails testing....label it as CAT3 and sells it as such.
It works out well if terminating to 110 blocks/panels, but requires a bit more work to terminate to 66 blocks as the pairs are twisted much more than old school CAT3.
