Museum

Home

Lab Overview

Retrotechnology Articles

Online Manuals

⇒ dn(IV) — UNIX 6th Edition

Media Vault

Software Library

Restoration Projects

Artifacts Sought

Related Articles

dp (IV)

DN(IV)  −  PWB/UNIX 3/20/74

NAME

dn − DN-11 ACU interface

DESCRIPTION

The dn?  files are write-only.  The permissible codes are:

0-9dial 0-9

:dial *

;dial #

−4 second delay for second dial tone

=end-of-number

The entire telephone number must be presented in a single write system call.  It is recommended that an end-of-number code be given even though not all ACU’s actually require it.

FILES

/dev/dn0connected to 801 with dp0
/dev/dn1not currently connected
/dev/dn2not currently connected

SEE ALSO

dp (IV)

BUGS

Typewritten Software • bear@typewritten.org • Edmonds, WA 98026