The Allen-Bradley 1734-IV2 is a POINT digital DC input module. Two input points are available with this module and they are together in a group. It also has 2 yellow input status indicators, 1 green/red network status indicator, and 1 green/red module status indicator. The keyswitch position of the 1734-IV2 is 1 and the whole module measures 2.21 x 0.47 x 2.97 inches. Its compact size lets users mount it horizontally or vertically on a DIN rail or in small spaces. Note that users can only use a 1734-TB or 1739-TBS terminal base unit and 22 to 141 AWG stranded or solid copper wire with this module. It also comes with an open-type enclosure.

The 1734-IV2 has a surge transient immunity of +/-1 kV line to line and +/-2 kV line to earth (CM) on signal ports. Its maximum thermal dissipation is 3.4 BTU/hour at 28.8 Volts DC and its maximum power dissipation is 1 W at 28.8 Volts DC. The input delay time of this module is 0.5 milliseconds hardware plus user-selectable time, which ranges from 0 to 65 milliseconds. Its operating temperature is from -20 to 55 degrees Celsius and its non-operating temperature is from -40 to 85 degrees Celsius. The operating shock is 30 g while the non-operating shock is 50 g. The 1734-IV2’s operating vibration is 5 g at 10 to 500 Hertz and its non-condensing relative humidity is 5 to 95%. The maximum POINT bus current of the 1734-IV2 is 75 mA at 5 Volts DC and its nominal input voltage is 24 Volts DC. Its on-state input voltage ranges from 10 to 28.8 Volts DC, while its on-state input current ranges from a minimum of 2 mA to 5 mA. The 1734-IV2 also has a maximum input current of 1.5 mA in off-state.