Tieline ViA User Manual page 23

Left Side Panel Connections
Connection
1 USB Port 1
2 RS232
3 S/PDIF In/Out (Auxiliary
input)
4 LAN1 and LAN2 Ports
5 Control Port I/O
© Tieline Pty. Ltd. 2017
Details
USB host port 1 for attachment of a supported cellular modem for
data connections. Also supports attachment of a USB keyboard.
Nine pin female RS232 serial data connection for local and remote
control of equipment at either end of the link.
S/PDIF IN/OUT auxiliary input and output via RCA connectors.
The codec features two Gigabit (10/100/1000) RJ-45 Ethernet ports
for IP connections. By default, the codec assumes LAN1 is the
primary LAN connection and LAN2 is the backup (secondary) LAN
connection when in use.
Four relay inputs and four opto-isolated outputs for machine control
via the DB15 CONTROL PORT I/O connector.
ViA User Manual v2.0 23