[comp.dcom.telecom] Using a DS0 For Data

derrick@uunet.uu.net (Derrick Rowlandson) (11/21/89)

Excuse the ignorance, but I am merely fumbling my way thru this stuff.

My understanding of T1, and it's associatted DS0's, is that a 56K
channel will carry a 56Kbit stream of traffic in *one* direction only.
Most communications devices that may use, say HDLC, as a Link access
protocol expect a full-duplex channel don't they? By this line of
thinking, we would need two DS0's to carry a full-duplex 56K
connection (example remote ethernet bridges). So what is the scoop?
Are 2 DS0's needed, or do most WAN devices use a single DS0 in a
half-duplex manner (if so can it still be HDLC)?

Would someone be as kind to point out where I am going wrong here.

Thanks,

Derrick Rowlandson - Computing Services - Athabasca University