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1794-ASB2 Allen-Bradley

Original price $439.96 - Original price $1,499.98
Original price
$439.96
$439.96 - $1,499.98
Current price $439.96
Surplus - Tested (With Warranty)
Need a Specific Revision?
$439.96
4 in stock
New / Open-Box Surplus
Need a Specific Revision?
$1,499.98
2 in stock
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Product Details

Description · Specifications · Product Overview

Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.

Product Overview

The 1794-ASB2 is a Remote I/O adapter in the Allen-Bradley Flex I/O 1794 series. It provides a two-module capacity interface between Flex I/O modules and a Universal Remote I/O link. It integrates a built-in 24 V DC power supply to support communication and backplane I/O modules. Commonly used in distributed I/O applications where minimal module counts and legacy RIO communication (57.6/115.2/230.4 kbps) are required.

Best Suited For

  • Distributed I/O with Remote I/O (RIO) legacy systems
  • Compact two-module Flex I/O racks
  • Applications requiring adjustable RIO baud rates
  • Environments with -20 °C to 55 °C temperature range
Module capacity
2 modules
Input voltage range
19.2-31.2 V DC
FlexBus current (max)
640 mA
Communication speed
57.6/115.2/230.4 kbps
Operating temp range
-20 to 55 °C

Technical Specifications

I/O & Electrical

Input voltage range
19.2-31.2 V DC
Nominal input voltage
24 V DC
FlexBus output current
640 mA max
Power consumption
4.2 W
24 V load (current)
175 mA
Power dissipation (max)
3.4 W @ 19.2 V DC

Communication & Power

Communication speed
57.6/115.2/230.4 kbps
Isolation voltage
50 V continuous
ESD protection
8 kV Air Discharge
RF immunity
10 V/m
EFT/Surge immunity
±2 kV

Physical & Environmental

Operating temperature
-20…55 °C
Storage temperature
-40…85 °C
Relative humidity
5…95% non-condensing
Shock (operating)
30 g, 11 ms pulse
Vibration
5 g @ 10-500 Hz

1-Year Warranty

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Sourced and shipped from Texas, USA. Never anonymous overseas marketplace stock.

30-Day Returns

Hassle-free RMA. If the part is not right for your application, send it back within 30 days.

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Rockwell Automation documentation

Access official manuals, datasheets, and lifecycle information for this part directly from Rockwell Automation.

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Must Read: Disclaimer

PLC Department sells surplus and refurbished industrial automation products, including but not limited to programmable logic controllers (PLCs), which are sourced exclusively through independent third-party channels. PLC Department is not an authorized distributor, reseller, or representative of any manufacturer listed on this website, including Rockwell Automation or its Allen-Bradley brand. All product warranties, where offered, are provided solely by PLC Department and not by the original manufacturer.

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