1797-RPA

The 1797-RPA is an Allen-Bradley module that belongs to the 1797 product category. This module is a ControlNet Ex Modular repeater adapter. It has One (1) ControlNet BNC port that supports 5Mbps communication rate. This module has an I/O capacity of Two (2) fiber modules.

The 1797-RPA has an IS media type of Ex ib IIB/IIC T4, AEx ib IIC T4, Class I, Division 1 Groups A to G T4 and IS module type of Ex ib IIB/IIC T4, AEx ib IIC T4, Class I Division 1 Groups A to D T4. This module has embedded module indicators such as Comm LED, Module LED and Power LED. The communication and Module LED both have bi-color LED indicators, having green color for normal operation and Red color for faulted situation. The Power LED displays green depicting a valid input supply voltage is detected. This power supply module has a power consumption of 8.5 W, Power Dissipation of 8.5W and Thermal dissipation of 29 BTU/hr. Appropriate wire size for making connection to the module is 4 mm sq. or 12 gauge of stranded copper wire with insulation thickness of 1.2 mm (3/64 in.).

This module is certified for use in II (1) 2G ib[ia] IIC T4, Class I Division 1 Groups A to D T4 Class I Zone 1 AEx ib IIC T4, Class I Division 1 Groups A to D T4 Class I Zone 1 AEx ib IIC T4, BR-Ex ia/ib IIB/IIC T4 and Ex ib IIC T4 and Ex ib[ia] IIC T4.

The unit is Class I, II, and II/Div 1, Zone 1 and 22 rated for use in hazardous environments and it has a conformal coating that provides the necessary protection from corrosion. The 1797-RPA repeater module uses ControlNet communication protocol and it has 5 megabits per second of maximum speed at the communication port. The I/O capacity for the product is two fiber modules so the 1797-RPA repeater module is usually combined with either one or two 1797-RPFM modules. This combination of fiber module(s) and repeater module(s) can provide significant advantages for the overall system, creating a repeater hub to internally connect systems that are working in hazardous locations. The module uses 9.5 Volts DC power supply and its regular consumption of power and power dissipation are 8.5 Watts. In addition to that, it is important to note that the unit has a 5.4 Volts of output power and thermal dissipation of 29 BTU per hour. The 1797-RPA Flex Ex module weighs only 200 grams and it operates within a temperature range of -20 to 70 degrees Celsius (-4 to 158 degrees Fahrenheit). The unit can be stored in environments with temperatures between -40 and 85 degrees Celsius (-40 and 185 degrees Fahrenheit). Also, the unit can be used in environments with a relative humidity of up to 95% (non-condensing).