.TH DH 4 .UC 4 .SH NAME dh \- DH-11 communications multiplexer .SH DESCRIPTION Each line attached to the DH-11 communications multiplexer behaves as described in .IR tty (4). Input and output for each line may independently be set to run at any of 16 speeds; see .IR tty (4) for the encoding. .SH FILES /dev/tty[hi][0-9a-f] .SH "SEE ALSO" tty(4)