The DTR uses a standard Ethernet cable (10/100BASE-T Cat 5e UTP cable with RJ45 connectors). The maximum cable length is 50 m (164 ft).
Ethernet connection is similar to that of a computer/PC: Use a cross-over Ethernet cable to connect the DTR directly to a computer, as shown in the figure below. If you are connecting the DTR to a LAN (Local Area Network) through a wall socket, use straight-through Ethernet cable, as shown in the following figure.
If you are connecting the DTR to a hub or switch or WLAN access point, please consult the user guide of your hub/switch/access point for the correct cable type, as shown in the following figures.
If you need a longer cable or the environment is electrically noisy, use fiber optics Ethernet with media converters as shown in the following figure.