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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.
ManufacturerRockwell Automation
I/O Capacity2 fiber modules
Communication Rate5 Mbps
Power Consumption8.5 W
Power Dissipation8.5 W
Thermal Dissipation29 BTU/hr
BrandAllen-Bradley
Product Description:Modular Repeater Adapter
IS Media Type :Ex ib IIB/IIC T4, AEx ib IIC T4, Class I, Division 1 Groups A to G T4
IS Module Type:Ex ib IIB/IIC T4, AEx ib IIC T4, Class I Division 1 Groups A to D T4
ControlNet Ex BNC:Oscillation powered by: Uo < 5.4V dc I o < 201 mA ac coupled with high-pass filter f > 500 kHz
Indicators:Comm - green/red Module - green/red Power - green
Power Supply (-V, +V Intrinsically Safe):Ui < 9.5V dc Ii < 1 A Pi < 9.5 W Li = negligible Ci < 120 nF
Wire Size:4 mm2 (12 gauge) stranded max; 1.2 mm (3/64 in.) insulation max
Part Number/Catalog No.1797-RPA
Product TypeControlNet Ex Modular Repeater Adapter
Power Supply9.5V DC
Output Power5.4V
Weight200 g
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.).
