On June 27, 2017 at 4:13 PM systems_glitch via vcf-midatlantic <vcf-midatlantic@lists.vintagecomputerfederation.org> wrote:

V.35 sync serial. You can *get* V.35 cards for PCs, but I'd imagine it's
not supported in most OSes I'd want to do routing in (namely, OpenBSD). I
specifically want a DECbrouter because it'll plug into the DEChub 90 I've
got.

The CGS I offered has 2 V.35 interface (and 2 ethernet) but I can't recall if they're high or low speed. It might be possible to alter the hardware to high speed but I don't know how to do it. I haven't investigated it because no one seems to be interested in the CGS.