SMX System MultiMatrix Switchers
• Programmer's Guide
Programmer's Guide
4-2
Also refer to the
SMX System MultiMatrix Switchers User’s Manual
at www.extron.com.
Selected SIS
™
Commands
The switchers use Simple Instruction Set (SIS) commands for
operation and configuration. These commands can be run from
a PC connected to either of the switcher’s serial ports or the
Ethernet port. See
b
and
d
on page 2-2, and
f
on page 2-6, for
connection information.
N
The tables that begins on the page 4-4 are a partial
list of SIS commands. For a complete list, refer to the
SMX User's Manual
, chapter 4, “Programmer’s Guide”.
Establishing a network (Ethernet) connection
1
.
Open a TCP socket to port 23 using the switcher’s IP
address.
N
The factory default IP address is 192.168.254.254.
The switcher responds with a copyright message including
the date, the name of the product, firmware version, part
number, and the current date/time.
2
.
If the switcher is not password-protected, the device is
now ready to accept SIS commands.
If the switcher is password protected, enter the appropriate
password. If accepted, the switcher responds with
Login
User
or
Login Administrator
. If the password is not
accepted, the
Password
prompt reappears.
Connection time-outs
The Ethernet link times out and disconnects after a designated
period of time of no communications. By default, this time-out
value is set to five minutes but the value can be changed.
N
Extron recommends leaving the default time-out at five
minutes and periodically issuing the Query (Q) command
to keep the connection active or disconnecting the socket
and reopening the connection when necessary.
Number of connections
A switcher can have up to 200 simultaneous TCP connections,
including all HTTP sockets and Telnet connections. When the
limit is reached, the switcher accepts no new connections until
some have been closed. No error message or indication is given
that the limit has been reached. To maximize performance
unnecessary open sockets should be closed.
Verbose mode
Telnet connections to a switcher can be used to monitor changes
that occur on the switcher. The Telnet session must be in
verbose mode 1 or 3. See the Verbose Mode command in the SIS
command tables.