View source for Serial OverIP communication between Server and Client

=Introduction=
This article provides a configuration example to enable communication from a serial device connected to the TRB142/5 to another serial device (e.g. RUT955/6) using OverIP via public IP or RMS VPN.
==Configuration Overview and Prerequisites==
TRB142/5 and RUT955/6 have serial communication ports, that combined with '''Serial-Over-IP''' functionality on server enabled to gather of all information from clients, and simultaneously send to all clients in remote sites.
==Prerequisites==
*2 devices with serial port (e.g. TRB142/5, RUT955/6, TRB245/55)
*2 end devices capable of serial communication (we're going to use a PC and [https://www.hw-group.com/software/hercules-setup-utility Hercules] app)
*Serial cables to connect to the end device ( 2 x RS232-USB will be used)
*Public IP or RMS VPN configured.
==Topology==
[[File:Serial overip7.png|border|class=tlt-border|1100x700px]]
=Configuration=
==OverIP server==
Firstly, we'll need to configure the Serial-Over-IP server. Navigate to '''Services->RS232''', or (if you're going to use '''RS485''', navigate there instead).
[[File:Serial overip1.png|border|class=tlt-border|1100x700px]]
#'''Enable''' the interface
#Select baud rate ('''9600''')
#Serial type ('''Over IP''')
#Mode '''Server'''
#Select port ('''8000''')

Now, you should let specific IP through, or just use 0.0.0.0/0 for the whole internet to be allowed in.
[[File:Serial overip2.png|border|class=tlt-border|1100x700px]]
#Select through which interface serial packets will come in
#Add it
#Type, which IPs will be allowed in
#Save
==OverIP client==
[[File:Serial overip3.png|border|class=tlt-border|1100x700px]]
#'''Enable''' the interface
#Select baud rate ('''9600''')
#Serial type ('''Over IP''')
#Mode '''Client'''
#Type in the server's public IP or RMS VPN's IP
## You can check your RMS VPN's IP by navigating to '''RMS VPN->VPN Hubs''' and selecting the hub where your serial devices are connected.
##Now you can check your OverIP server's IP<br>[[File:Serial overip4.png|border|class=tlt-border|700x450px]]
#Select port ('''8000''')
=Testing=
After configuration has been complete, we'll need to test it. Launch Hercules on both PCs and connect using serial protocol to connect to TRB142/5 and RUT955/6.
[[File:Serial overip5.png|border|class=tlt-border]]
#Select serial protocol
#Select the COM port to which your device is connected (On PC you can use Device Manager (Windows) to check this)
#Match the baud rate to which you've configured in the device
#Open the connection
[[File:Serial overip6.png|border|class=tlt-border]]
#Now try sending any message from the client to the server and vice versa.
#You should see the message you've sent appearing on the other side of the serial device.