The Matrix-Hub can be connected to the app server by a standard RS-232 cable. The settings of the serial port are displayed on the router’s screen. The Matrix-Hub router requires that the user should log on from the serial port. In order to automate this, set the name of the physical router to the password. The default password is mh1. If you want to do all switches in RS-422 mode, then the name of the serial level should contain the string 422, for example, you can name it Serial-422. If that string (422) is not found, then all the switches are done in RS-232 mode.

It is impossible to do both 422 and 232 switches. The system always assumes that the Video level has frame ID 1, the K/M level has frame ID 2 and the serial level has frame ID 3. Note that the K/M switch takes about 0.5 seconds, so there is a noticeable delay. The K/M and serial connections are unicast (that is, you can connect one source to only one destination although a bug in Matrix-Hub firmware sometimes allows you to do that). It means that if the source was connected to a destination, and then user connects it to another destination, the first destination is disconnected automatically. A video source can be connected to several destinations simultaneously.