If you will use any kind of terminal server, you will be able to connect any device to any PC (hardware RS-232 ports aren't required).
A terminal server (also referred to as a serial server or console server network access server) enables organizations to connect devices with an RS-232, RS-422 or RS-485 serial interface to a local area network (LAN).
So you connecting all you gears to terminal server and have them accessible trough LAN to any computer in your network as:
- Virtual serial ports on selected PC (driver installation required).
- Listening IP ports on terminal server IP address.
- Other less often used modes.
I can recommend you a Moxa Serial Device Servers (some setups - virtual serial ports - might require Windows). You can find there:
- 19 inch rack-mounted: NPort 5610/NPort 5630 Series.
- Desktop with LCD panel: NPort 5610-8-DT/NPort 5650-8-DT Series.
- Basic desktop: NPort 5610-8-DTL/NPort 5650-8-DTL Series.