[Unit]
Description=DCC USB-to-Network Bridge Daemon
After=network.target
# Device will be available via udev rule, but add condition as safety check
ConditionPathIsReadWrite=/dev/ttyUSB0
# Stop this service when the device is no longer needed (removed)
StopWhenUnneeded=yes

[Service]
ExecStartPre=/usr/bin/stty -F /dev/ttyUSB0 -echo 115200
ExecStart=/usr/bin/bash -c "/usr/bin/ncat -n -k -l 2560 </dev/ttyUSB0 >/dev/ttyUSB0"
KillMode=mixed
TimeoutStopSec=5
PrivateTmp=true

[Install]
WantedBy=default.target