Extron electronic IPI 200 Series IPI 201/204 SIS Programming and Control, IPI-initiated Messages

IPI 201/204 SIS™ Programming and Control

The Extron MediaLink IP Intercom modules can be remotely set up and controlled via a host computer or other device (such as a control system) attached to the LAN port, or the front panel Config port.

NRefer to the MLC 226 IP Series User’s Manual for IPI 101/104 series SIS command and control information.

The IPI can be set up and controlled by using Extron’s Simple Instruction Set (SIS) commands, accessed via RS-232 or Ethernet LAN connection.

IPI RS-232 protocol:

•38400 baud

•8 data bits

•1 stop bit

•no parity

•no flow control

NThe configuration port requires 38400 baud communication. This is a higher speed than many other Extron products use. If using HyperTerminal or a similar application, make sure the PC or control system connected to these ports is set for 38400 baud.

LAN port defaults:

•IP address: 192.168.254.254

•gateway’s IP address: 0.0.0.0

•subnet mask: 255.255.0.0

•DHCP: off

NThe IP Intercom (IPI) must be configured before use.

Host-to-IPI Communications

SIS commands consist of one or more characters per field. No special characters are required to begin or end a command sequence. When the IPI determines that a command is valid, it executes the command and sends a response to the host device. All responses from the IPI to the host end 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.

IPI-initiated Messages

If you are communicating with the IPI via RS-232 or via a verbose Telnet connection when a local event such as a front panel selection or adjustment takes place, the IPI responds by sending a message to the host. No response is required from the host. The IPI-initiated messages are listed here (underlined).

5-2 IPI 100 Series, IPI 200 Series • SIS Programming and Control