NAME

dz, dzk, dh − DZ-11, DZ-11/KMC-11, DH-11 asynchronous multiplexers

DESCRIPTION

Each line attached to a DH-11 or DZ-11 communications multiplexer behaves as described in tty(4). Input and output for each line may independently be set to run at any of 16 speeds; see tty(4) for the encoding. (For DZ-11 lines, output speed is always the same as input speed.  The 200 speed and the two externally clocked speeds (exta, extb) are missing on the DZ-11.)  The behavior of dzk lines is indistinguishable from that of dz lines, except that on the dzk backspace delays are implemented using fill characters (rubouts) instead of timed delays. 

Note that the DH-11 is considered obsolete and is not supported on the VAX-11/780. 

FILES

/dev/tty∗

SEE ALSO

kmc(4), tty(4). 

May 16, 1980