Extron electronic MKP 2000 - Manual (Page 20)

MKP 2000 Remote Control Panel • SIS Operation MKP 2000 Remote Control Panel • SIS Operation
SIS Operation
RS-232 Links
The MKP’s rear panel 3-pole, 3.5 mm, Host RS-232 connector
(figure 4-1) can be connected to the RS-232 serial port output of
a host device such as a computer running the HyperTerminal
utility, an RS-232 capable PDA, or a control system. This
connection makes software control of the control panel possible.
The rear panel Switcher connector can be connected to the
Remote or RS-232 port of a matrix switcher.
The default protocol for both ports is as follows:
• 9600 baud* • no parity
• 8-bit, 1 stop bit • no flow control
Pin Function
TX
RX
Gnd
Transmit data
Receive data
Signal ground
Tx
HOST
RS-232
SWITCH
RS-232
Rx
GND
Tx
Rx
GND
Figure 4-1 — RS-232 connector pin assignments
*The default baud rate is 9600, but this can also be
changed, using the MKP’s web pages, to 19200, 38400,
or 115200 baud to match the switcher’s baud rate. See
Port (RS-232) Settings in chapter 5,
HTML Operation, to change the baud rate.
Routing matrix switcher commands
When the MKP is connected to the matrix switcher via its
Switcher RS-232 port, the MKP can redirect SIS matrix switcher
commands received on the Host RS-232 port to the matrix
switcher.
If the MKP receives a valid matrix switcher SIS command on its
Host RS-232 port, it redirects the command to its Switcher
RS-232 port only if the MKP is set to Pass-through mode. See
the pass-through port redirect command set on page 4-8 to set
the Pass-through mode.
Ethernet Link
The rear panel LAN connector on the MKP can be connected
directly to a host computer (for set-up) or a matrix switcher (for
switcher control) or to an Ethernet LAN or WAN (to which a
host computer, other MKPs and a matrix switcher can also be
connected).
• Connection directly to a host computer requires a
crossover cable
.
• Connection via an Ethernet LAN requires a patch
(straight) cable
.
See TP cable termination in chapter 2, Installation to
create crossover and patch cables.
Default IP address
To access the MKP via the Ethernet port, you will need the
Extron IP address. If the address has been changed to an
address comprised of words and characters, the actual numeric
IP address can be determined using the ping (ICMP) utility. If
the address has not been changed, the factory-specified default
is 192.168.254.253.
Host-to-MKP Instructions
The switcher accepts SIS (Simple Instruction Set) commands
through the Host RS-232 port and Ethernet port. SIS commands
consist of one or more characters per command field. They do
not require any special characters to begin or end the command
character sequence. Each switcher response to an SIS command
ends with a carriage return and a line feed (CR/LF =
), which
signals the end of the response character string. A string is one
or more characters.
MKP-Initiated (Unsolicited) Messages
When a local event such as a front panel operation occurs, the
switcher responds by sending a message to the host. The
switcher-initiated messages are listed below (underlined).
(C) Copyright 2004, Extron Electronics MKP 2000, Vx.xx
The switcher initiates the copyright message when it is first
powered on or when connection via Internet protocol (IP) is
established. Vx.xx is the firmware version number.
Password:
The switcher initiates the password message immediately after
the copyright message when the controlling system is connected
using TCP/IP or Telnet and the switcher is password protected.
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