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1.\" Copyright (c) 1980 Regents of the University of California.
2.\" All rights reserved. The Berkeley software License Agreement
3.\" specifies the terms and conditions for redistribution.
4.\"
5.\" @(#)rv.4 4.1 (Berkeley) %G%
6.\"
7.TH RV 4
8.UC 4
9.SH NAME
10rv \- Racal/Vadic ACU interface
11.SH DESCRIPTION
12The racal/vadic ACU interface is provided by the files
13.I /dev/cua[01]
14which is a multiplexed file, and by the daemon
15.I dnd
16which monitors the file, simulating a standard DN dialer.
17To place an outgoing call one forks a sub-process
18trying to open
19.I /dev/cul?
20and then opens the corresponding file
21.I /dev/cua?
22file and writes a number on it.
23The daemon translates the call to proper format for the
24Racal/Vadic interface, and monitors the progress of the call
25recording accounting information for later use.
26.PP
27The codes for the phone numbers are the same as in the DN interface:
28.TP
290-9
30dial 0-9
31.br
32.ns
33.TP
34.B :
35dial *
36.br
37.ns
38.TP
39.B ;
40dial #
41.br
42.ns
43.TP
44\-
45delay for second dial tone
46.br
47.ns
48.TP
49<
50end-of-number
51.PP
52The entire telephone number must be
53presented in a single
54.I write
55system call.
56.PP
57It is require that an end-of-number
58code be given.
59.DT
60.SH FILES
61/dev/cua0 virtual dialer for 300 baud dialout
62.br
63/dev/cua1 virtual dialer for 1200 baud dialout
64.br
65/dev/cul0 the terminal which is connected to the 300 baud dialout
66.br
67/dev/cul1 the terminal which is connected to the 1200 baud dialout
68.br
69/usr/adm/dnacct Accounting records for sucessfully completed calls.
70.SH "SEE ALSO"
71cu(1), uucp(1)
72.SH BUGS
73Locking problems.
74.PP
75The multiplexor seems to have rare-case bugs which occasinally crash
76the system taking trap type 9's, usually in the
77.I sdata
78system routine.