1783-US7T1F

The Allen-Bradley 1783-US7T1F is part of the Stratix 2000 unmanaged Ethernet switch product family. This switch features Seven (1) Fast Ethernet (FE) ports that supports 100 Mbps communication speed and One (1) SFP port with pre-installed multimode fiber SFP module.

The 1783-US7T1F is available in Series A and B. The main difference between each series are the electrical characteristics however, the number of ports and communication speed remain the same. The series A 1783-US7T1F features maximum inrush current of 1.06 A, current rating of 442.3 mA and power dissipation of 5.927 W. Series B 1783-US7T1F has an inrush current rating of 0.41 A, nominal current rating of DC 250 mA / AC 500 mA and maximum power consumption of 4.6 W.

Regardless of the series, the 1783-US7T1F supports DIN rail or direct panel mounting. It does not require installation within a PLC rack or requires specialty installation accessories.

The 1783-US7T1F’s pre-installed SFP module features central wavelength of 1310 nm, with transmission distance of 2km and applicable distance of 0-2 km. The 1783-US7T1F has broadcast threshold of 20 pps for 10 Mbps per port and 200 pps for 100 Mbps per port.

When establishing power connections to the 1783-US7T1F, appropriate wire size is 4…0.25 mm. sq (12…24 AWG) twisted-pair copper wire suitable for 86 °C (187 °F) above surrounding ambient temperature outside the enclosure.

The indicator’s blink rate is 105 ms with broadcast storm thresholds of 20 packets per second (pps) for 10 Mbps per port and 200 pps for 100 Mbps per port. The entire switch measures 4.5 x 3.02 x 1.8 inches and it has an open enclosure. The power input of the 1783-US7T1F switch is 24V (18-60V DC, 18-30V AC, 50-60 Hz) and the current rating of the Series A switch is 442.3 mA. The Series A switch also has a maximum inrush current of 1.06 A, while the Series B switch is 0.41 A. The maximum power dissipation of the Series A switch is 5.927 W and comes with a 30V continuous isolation voltage.

The nominal currents of the switch are 250 mA DC and 500 mA AC, maximum currents are 510 mA DC and 1100 mA AC, and maximum power consumption is 4.6 W. The 1783-US7T1F switch’ operating temperature is -40-167 Deg. Fahrenheit and storage temperature requirement of -40 to -185 Deg. Fahrenheit. Its maximum ambient and surrounding air temperatures are both 167 Deg. Fahrenheit and its non-condensing relative humidity is 5-95%. The 1783-US7T1F’s operating vibration is 2 g at 10-500 Hz, its operating shock is 15 g, and its non-operating shock is 30 g.