Extron electronic 12800 manual Host-to-Switcher Instructions, Establishing a connection

Programmming Guide, cont’d

Establishing a connection

Establish a network connection to BME 0 as follows:

1. Open a TCP socket to port 23 using the IP address of the BME.

NIf the local system administrators have not changed the value, the factory- specified default, 192.168.254.254, is the correct value for this field.

The BME responds with a copyright message including the date, the name of the product, firmware version, part number, and the current date and time.

NIf the BME is not password-protected, the device is ready to accept SIS commands immediately after it sends the copyright message.

NIf the BME is password-protected, a password prompt appears below the copyright message.

2. If the BME is password protected, enter the appropriate administrator or user password.

If the password is accepted, the BME responds with Login User or Login Administrator.

If the password is not accepted, the Password prompt reappears.

Number of connections

The BME can have up to 200 simultaneous TCP connections, including all http sockets and Telnet connections. When the connection limit is reached, the switcher accepts no new connections until some have been closed. No error message

or indication is given that the connection limit has been reached. To maximize performance of an IP Link device, the number of connections should stay low and unnecessary open sockets should be closed.

Host-to-Switcher Instructions

The switcher accepts commands through the either of the RS-232/RS-422 ports or the Ethernet port of BME 0. 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.

4-4 Matrix 12800 Switchers • Programming Guide