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L-DEVICES(5)									     L-DEVICES(5)

NAME
       L-devices - UUCP device description file

DESCRIPTION
       The  L-devices  file  is  consulted  by	the  UUCP daemon uucico(8) under the direction of
       L.sys(5) for information on the devices that it may use.  Each line describes exactly  one
       device.

       A line in L-devices has the form:

       Caller  Device  Call_Unit  Class  Dialer  [Expect  Send]....

       Each  item  can	be  separated by any number of blanks or tabs. Lines beginning with a `#'
       character are comments; long lines can be continued by appending a `\'  character  to  the
       end of the line.

       Caller denotes the type of connection, and must be one of the following:

       ACU     Automatic call unit, e.g., autodialing modems such as the Hayes Smartmodem 1200 or
	       Novation ``Smart Cat''.

       DIR     Direct connect; hardwired line (usually RS-232) to a remote system.

       DK      AT&T Datakit.

       MICOM   Micom Terminal switch.

       PAD     X.25 PAD connection.

       PCP     GTE Telenet PC Pursuit.

       SYTEK   Sytek high-speed dedicated modem port connection.

       TCP     Berkeley TCP/IP or 3Com UNET connection. These are mutually exclusive.  Note  that
	       listing	TCP  connections in L-devices is superfluous; uucico does not even bother
	       to look here since it has all the information it needs in L.sys(5).

       Device is a device file in /dev/ that is opened to use the device. The device file must be
       owned by UUCP, with access modes of 0600 or better. (See chmod(2)).

       Call_Unit  is  an optional second device file name.  True automatic call units use a sepa-
       rate device file for data and for dialing; the Device field specifies the data port, while
       the Call_unit field specifies the dialing port.	If the Call_unit field is unused, it must
       not be left empty.  Insert a dummy entry as a placeholder, such as ``0'' or ``unused.''

       Class is an integer number that specifies the line baud (for dialers and direct lines)  or
       the port number (for network connections).

       The Class may be preceded by a non-numeric prefix.  This is to differentiate among devices
       that have identical Caller and baud, but are distinctly different.  For example,  ``1200''
       could  refer  to  all  Bell  212-compatible  modems,  ``V1200'' to Racal-Vadic modems, and
       ``C1200'' to CCITT modems, all at 1200 baud.  Similarly, ``W1200'' could denote long  dis-
       tance lines, while ``L1200'' could refer to local phone lines.

       Dialer applies only to ACU devices. This is the "brand" or type of the ACU or modem.

       DF02    DEC DF02 or DF03 modems.

       DF112   Dec  DF112 modems. Use a Dialer field of DF112T to use tone dialing, or DF112P for
	       pulse dialing.

       att     AT&T 2224 2400 baud modem.

       cds224  Concord Data Systems 224 2400 baud modem.

       dn11    DEC DN11 Unibus dialer.

       hayes   Hayes Smartmodem 1200 and compatible autodialing modems.  Use a	Dialer	field  of
	       hayestone  to  use tone dialing, or hayespulse for pulse dialing.  It is also per-
	       missible to include the letters `T' and `P' in the  phone  number  (in  L.sys)  to
	       change  to  tone or pulse midway through dialing.  (Note that a leading `T' or `P'
	       will be interpreted as a dialcode!)

       hayes2400
	       Hayes Smartmodem 2400 and compatible modems.  Use a Dialer field of  hayes2400tone
	       to use tone dialing, or hayes2400pulse for pulse dialing.

       novation
	       Novation ``Smart Cat'' autodialing modem.

       penril  Penril  Corp ``Hayes compatible'' modems (they really aren't or they would use the
	       hayes entry.)

       rvmacs  Racal-Vadic 820 dialer with 831 adapter in a MACS configuration.

       va212   Racal-Vadic 212 autodialing modem.

       va811s  Racal-Vadic 811s dialer with 831 adapter.

       va820   Racal-Vadic 820 dialer with 831 adapter.

       vadic   Racal-Vadic 3450 and 3451 series autodialing modems.

       ventel  Ventel 212+ autodialing modem.

       vmacs   Racal-Vadic 811 dialer with 831 adapter in a MACS configuration.

       Expect/Send is an optional Expect/Send script for getting through a smart  port	selector,
       or  for	issuing  special  commands  to the modem.  The syntax is identical to that of the
       Expect/Send script of L.sys.  The difference is that the L-devices script is  used  before
       the connection is made, while the L.sys script is used after.

FILES
       /etc/uucp/L-devices
       /etc/uucp/UUAIDS/L-devices    L-devices example

SEE ALSO
       uucp(1), uux(1), L.sys(5), uucico(8)

4.3 Berkeley Distribution		 October 22, 1996			     L-DEVICES(5)
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