V7M/man/man4/dn.4

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.TH DN 4 
.SH NAME
dn \- DN-11 ACU interface
.SH DESCRIPTION
The
.I dn?
files
are write-only.
The permissible codes are:
.TP
0-9
dial 0-9
.br
.ns
.TP
.B :
dial *
.br
.ns
.TP
.B ;
dial #
.br
.ns
.TP
\-
4 second delay for second dial tone
.br
.ns
.TP
<
end-of-number
.PP
The entire telephone number must be
presented in a single
.I write
system call.
.PP
It is recommended that an end-of-number
code be given even though not all
ACU's actually require it.
.DT
.SH FILES
/dev/dn0	connected to 801 with dp0
.br
/dev/dn1	not currently connected
.br
/dev/dn2	not currently connected
.SH "SEE ALSO"
dp(4)