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Command Control Language (CCL) Scripts
893-826-A
Command Control Language (CCL) scripts are files that contain commands,
which initialize a modem and configure communication between the modem
and the device to which it is connected. The CCL script in an ASCII file. Since
there are many types of modems, the CCL script "language" is flexible enough
to accommodate them all.
CCLs were originally designed to be used with AppleTalk remote access. For
ARAP connections, CCL scripts provide modem initialization commands to
both modems that are part of a given AppleTalk remote access connection.
(That is to say: The remote Macintosh computer provides initialization
commands to its modem, and the remote access server does the same for its
modem.)
For Model 3395A servers, CCL scripts can be used to initialize ports for all
types of modem connections and protocols. One could think of a CCL as an
"alternate" method of autobauding, because the CCL will determine the
appropriate port speed and set it accordingly. CCL scripts are required for
ARAP connections but can be used to initialize the port and modem for other
types of connections (PPP, SLIP, interactive, and so on).
CCL scripts are stored on script servers (hosts that can transfer files to the
communication server via TFTP). Individual ports are configured to use a
specific CCL script. The communication server downloads the CCL script
once, then executes the commands in the script when the communication server
is first initialized and when a connection is disconnected. That way, the modem
is ready to accept the next incoming connection.
Model 3395A server software provides CCL scripts for use with a variety of
modems that can be connected to communication server ports and to remote
Macintosh computers. These scripts are listed in the Software Kit Information
supplied with your software kit. CCL scripts for use with remote Macintosh
computers can also be obtained from the manufacturer of the modem or from
public domain sources. Chapter 8 describes the use of CCL scripts in more
detail.
Command Control Language (CCL) Scripts
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