The Allen-Bradley 1734-AENTR is a dual Ethernet POINT I/O communication module that is used to interface a POINT I/O rack to the central controller in the Ethernet I/P network. This adapter is capable of being implemented in Ring, Star and Tree Topology and is powered by an External 24VDC supply.

The 1734-AENTR supports TCP/UDP/IP protocol with physical connection established using Category 5 or Category 6 cable. This adapter supports 10/100 Mbit transmission speed with auto-negotiation function.

IP address may be assigned through the thumbwheel switches or with the use of BOOT-P DHCP utility. In most applications, this module is configured with a static IP address. With static IP address, the IP address do not change even if the device is powered off. Alternatively, the module may be configured with dynamic IP address. With dynamic type of address, the IP address changes every time the module is power cycled. This mode is applied in applications with a very specific requirement as it may result in communication errors due to sudden change in the IP address.