The Allen-Bradley 1738-AENT ArmorPoint EtherNet/IP Series A Adapter can support a maximum of 63 modules, 5 rack-optimized connections, and 25 direct connections. While the adapter has a maximum backplane current output of 1.0 Amp, this output may be extended with a 1738-EP24DC Backplane Extension Power Supply. This adapter has an inrush current of 6 Amps (maximum) for 10 milliseconds. The general specifications on this adapter include a maximum power consumption of 8.1 Watts at 28.8 Volts as well as a maximum power dissipation of 2.8 Watts at 28.8 Volts. The maximum thermal dissipation for this adapter is 9.5 British Thermal Units (BTU) per hour at 28.8 Volts. Its input overvoltage protection type is reverse polarity and it has an isolation voltage of 50 Volts (continuous). This adapter is equipped with LED indicators to allow the end-users to determine the status of the adapter, with the adapter status LED being green/red, the network activity LED being green, the network status LED being green/red, the PointBus status LED being green/red, the system power LED being green, and the adapter power LED being green as well.

More general specifications on the 1738-AENT adapter include an operating temperature range between -4 and 140 degrees Fahrenheit and a storage temperature range between -40 and 185 degrees Fahrenheit. The relative humidity range on this adapter is between 5 and 95% (non-condensing). This adapter receives an operating shock rating of 30 g and a non-operating shock rating of 50 g. The 1738-AENT adapter receives a Group 1, Class A emissions rating that is compliant with the CSPR 11 standards. It has an enclosure type rating that meets the IP 65, 66, and 67 standards (when marked). This adapter has dimensions of 4.41 x 2.83 x 2.56 inches, or 112 x 72 x 65 millimeters. The 1738-AENT adapter weighs 0.80 pounds or 0.36 kilograms.