Hello, I am new to the forum and have a very basic understanding of RS-232.

I am looking to control 10 Kramer switcher/scalers VP-443 via RS-232 port.

To make things stupid simple for my client, I am planning to install three mechanical buttons that will switch the 3 necessary inputs on all 10 Kramers at once.

My plan is to go from the mechanical buttons to the three contactors on a Global Cache GC-100-12 device. Output from the GC device via RS-232 to the 10 Kramers.

I have struggled to find a hub of some type that will broadcast my single RS-232 output to all 10 switchers. Any suggestions will be appreciated.

Thanks,
Disco