Netvue NI-3250 Quick Manual page 15

Step 5 (Wired Connection):
Read this step if you are using wired connection, otherwise skip this step.
A weatherproof tube is needed for Ethernet cable to avoid leaking water
into Ethernet cable port. Insert the cable into the weatherproof tube, and
then connect it to the Ethernet cable port of Sentry Camera. Make sure the
cable works before installing.
Things you need:
Ethernet cable
weatherproof tube Ethernet cable Ethernet cable port