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1771-ALX

Rated 4.8 with 18 reviews
About | Product Specifications | FAQ

DO Supply is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply. Product comes with DO Supply's 1-year warranty

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.


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1771-ALX

Revisions: Ser A 
Description: The Allen-Bradley 1771-ALX is a Local I/O adapter from the PLC-5 system. This module comes with One (1) local I/O port that allows installation of additional I/O modules for expansion. This module is installed to an I/O rack which occupies single slot only. It supports expansion of up to 30 cable meters (98.4 cable-feet). It has a current draw of 1.2 A @ 5VDC and compatible for use with any Series A or B 1771 I/O chassis and 1771 external or slot power supplies.
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Request a quote for 1771-ALX

Description: The Allen-Bradley 1771-ALX is a Local I/O adapter from the PLC-5 system. This module comes with One (1) local I/O port that allows installation of additional I/O modules for expansion. This module is installed to an I/O rack which occupies single slot only. It supports expansion of up to 30 cable meters (98.4 cable-feet). It has a current draw of 1.2 A @ 5VDC and compatible for use with any Series A or B 1771 I/O chassis and 1771 external or slot power supplies.
About | Products Specs | FAQ

DO Supply is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply. Product comes with DO Supply's 1-year warranty

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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Revisions: Ser A 

Warranty: 1 year DO Supply Warranty Included
Shipping: Worldwide shipping via UPS, DHL, and TNT
Repairs: We offer repair service for the 1771-ALX.
Exchange: Exchange credit for your defective unit available.
Conditions: We sell preowned surplus and refurbished parts.

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Rated 4.8 with 18 reviews

    Technical Specifications for 1771-ALX

ManufacturerRockwell Automation
Power supply:1771 external or slot power supplies
Chassis distance:30 cable-meters (98.4 cable-feet)
Keying:Between 54 and 56; Between 4 and 6
Cable terminator:1771-CXT
Interconnect cable1771-CX1 (1 meter); 1771-CX2 (2 meters); 1771-CX5 (5 meters)
Installation slot:Left most slot
Module locationLeftmost slot in any 1771 I/O chassis
Max Backplane Current (at 5 Volts DC)1.2 A
Compatibility:Series A or B 1771 IO chassis
BrandAllen-Bradley
LED indicators:ACTIVE: ADAPTER FAULT; I/O RACK Fault
Part Number/Catalog No.1771-ALX
Module TypeLocal I/O adapter
Rack AddressingAny method
Manufacturer Rockwell Automation / Allen-Bradley
Part Number/Catalog No. 1771-ALX
PortExtended Local I/O Adaptor
Series PLC-5 System
Rate of CommunicationN/A (Parallel)
Module Type Local I/O adapter
Compatible chassisSeries A or B 1771 I/O
ConnectorsD-Shell
Compatible Power supply1771 external or slot power supplies
Backplane Current (at 5 Volts)1.2 Amperes
Backplane Current at 5.1 Volts 1.2 A
Cable1771-CX1 (1 m), 1771-CX2 (2 m), 1771-CX5 (5 m)
Chassis Distance30 cable-meters (98.4 cable-feet)
Operating Temperature32-140 F (0-60 C)
Cable Terminator1771-CXT
Storage Temperature-40-185 F (-40-85 C)
Weight1.2 lbs (0.6 kg)
Keying Upper connector: between 54 and 56; Lower connector: between 4 and 6
Lower Connector Keying16-18
Power Dissipation:6.3 Watts (max.); 5.7 Watts (min.)
Thermal Dissipation:21.48 BTU/hr (max.); 19.44 BTU/hr (min.)
Operational Temperature0 to 60 oC (32 to 140 oF)
Dimensions3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)
Storage Temperature -40 to 85 oC (-40 to 185 oF)
UPC10612598115379
Relative Humidity5 to 95% (without condensation)
ManufacturerRockwell Automation
Power supply:1771 external or slot power supplies
Chassis distance:30 cable-meters (98.4 cable-feet)
Keying:Between 54 and 56; Between 4 and 6
Cable terminator:1771-CXT
Interconnect cable1771-CX1 (1 meter); 1771-CX2 (2 meters); 1771-CX5 (5 meters)
Installation slot:Left most slot
Module locationLeftmost slot in any 1771 I/O chassis
Max Backplane Current (at 5 Volts DC)1.2 A
Compatibility:Series A or B 1771 IO chassis
BrandAllen-Bradley
LED indicators:ACTIVE: ADAPTER FAULT; I/O RACK Fault
Part Number/Catalog No.1771-ALX
Module TypeLocal I/O adapter
Rack AddressingAny method
Manufacturer Rockwell Automation / Allen-Bradley
Part Number/Catalog No. 1771-ALX
PortExtended Local I/O Adaptor
Series PLC-5 System
Rate of CommunicationN/A (Parallel)
Module Type Local I/O adapter
Compatible chassisSeries A or B 1771 I/O
ConnectorsD-Shell
Compatible Power supply1771 external or slot power supplies
Backplane Current (at 5 Volts)1.2 Amperes
Backplane Current at 5.1 Volts 1.2 A
Cable1771-CX1 (1 m), 1771-CX2 (2 m), 1771-CX5 (5 m)
Chassis Distance30 cable-meters (98.4 cable-feet)
Operating Temperature32-140 F (0-60 C)
Cable Terminator1771-CXT
Storage Temperature-40-185 F (-40-85 C)
Weight1.2 lbs (0.6 kg)
Keying Upper connector: between 54 and 56; Lower connector: between 4 and 6
Lower Connector Keying16-18
Power Dissipation:6.3 Watts (max.); 5.7 Watts (min.)
Thermal Dissipation:21.48 BTU/hr (max.); 19.44 BTU/hr (min.)
Operational Temperature0 to 60 oC (32 to 140 oF)
Dimensions3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)
Storage Temperature -40 to 85 oC (-40 to 185 oF)
UPC10612598115379
Relative Humidity5 to 95% (without condensation)
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About 1771-ALX

The 1771-ALX is an Allen-Bradley Local I/O adapter module. This module is part of the PLC-5 system that is used to extend the I/O capability of the PLC-5 system and provide a safe and practical method of disconnecting I/O modules from the bus without disrupting the backplane connection.

The 1771-ALX is installed to any Series A and B chassis of any slot, and compatible for use with any 1771 external or slot power supplies. It has One (1) I/O adapter port where the interconnect cable with catalog numbers 1771-CX1 (1 meter); 1771-CX2 (2 meters) and 1771-CX5 (5 meters) may be connected. The 1771-ALX’ maximum allowable chassis distance is 30 cable-meters or 98.4 cable-feet.

The 1771-ALX is installed to the leftmost slot of the 1771 I/O chassis. It has a backplane current draw of 1.2 A @ 5VDC with compatible keying of between 54 and 56 for upper connector and between 4 and 6 for lower connector. A cable terminator is needed to be installed at the last module to determine the end of the expansion. This terminator plug has a part number of 1771-CXT.

The 1771-ALX has power dissipation of 6.3 Watts, maximum and 5.7 Watts, minimum while the thermal dissipation is 21.48 BTU/hr, maximum and 19.44 BTU/hr, minimum. It must be installed at an environment with temperature range of 0 to 60 oC (32 to 140 oF) and stored at -40 to 85 oC (-40 to 185 oF) with relative humidity of 5-95%, non-condensing. During installation, power to the backplane must be removed to avoid damage to the module and nearby components.

The 1771-ALX PLC 5 Local I/O Adapter Module by Allen-Bradley is an I/O chassis module which allows for disconnection of the rack from the BUS without disrupting or shutting down the entire system. The module is located on the leftmost I/O slot of the 1771 I/O chassis and it has a 30m maximum cable length for connection-to-system which can be a combination of 1m (1771-CX1), 2m (1771-CX2), or 5m (1771-CX5) cables. It has a 1771-CXT terminator plug for termination of the 1771-ALX PLC 5 Local I/O Adapter Module on the BUS with the PLC 5 Programmable Controller and when operational, the adapter module dissipates 6.3W maximum heats and 21.48 BTU/hr thermal dissipation. The module draws a backplane current of 1.2A at 5V DC and is designed to function without de-rating at a temperature range between 0 and 60 0C (32 and 140 0F) at a relative humidity range of 5-95% without condensation. The 1771-ALX has 3 LED light indicators which show the status and also allows users to troubleshoot the module.

FAQ for 1771-ALX

How many local I/O adapters can I install in one control system?


It supports up to 16 Local I/O, 1771-ALX adapters.

How is the module starting group and rack address assigned to this module?


Rack address and module starting group is assigned using the Address switch assembly.

What is the backplane current draw of the 1771-ALX?


The 1771-ALX has a backplane current draw of 1.2 A at 5VDC.

1. What is the maximum allowable chassis distance of the 1771-ALX?


The 1771-ALX supports up to 30 cable-meters or (98.4 cable-feet).

2. What is the compatible 1771 chassis for installation of the 1771-ALX?


The 1771-ALX is compatible with Series A or B 1771 I/O chassis.

3. What is the appropriate cable terminator for use with the 1771-ALX?


The 1771-ALX requires installation of a cable terminator at the last I/O adapter module. The cable terminator has part number of 1771-CXT/

Technical Description of 1771-ALX

The 1771-A3B1 is an Allen-Bradley local I/O adapter. This adapter provides modularity as it allows rack disconnection without shutting the entire control system. It is installed in the left-most slot on the chassis and supports a connection distance of 30 cable-meters or 98.4 cable-feet. It may be used with the 1771-CX1, 1771-CX2, and 1771-CX5 interconnect cables and cable terminator with catalog number 1771-CXT.

Repair Services for 1771-ALX

Type Lead Time Price Action
Repair Service 2-4 weeks Askenvelope Get Quote

Our highly skilled technicians can repair your 1771-ALX. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions for 1771-ALX

Please refer to the manual for more information about the 1771-ALX such as the wiring diagrams, data sheets and migration or obsolescence details.

Revision Part # Also Known as Availability
1771-ALX Ser A
1771-ALX/A, Series A, Rev A Request Quote
Common misspellings:
  • l771-ALX
  • 177l-ALX
  • 1771-A1X
  • 1771ALX

Reviews for 1771-ALX

Internal Review

"The 1771-ALX is a Local I/O adapter module that is used to extend the I/O capability of any 1771-I/O rack. This rack adapter is comparable to today’s rack extenders that serve the same purpose. Rack extension is different from Distributed I/O architecture. Rack extension uses a rack extension cable such as the 1771-CX1, 1771-CX2 and 1771-CX5 while distributed I/O architecture utilizes an industrial communication protocol to extend I/O chassis. " -DO Supply Tech

Product Review

"The 1771-ALX is a local I/O adapter module from Allen-Bradley. It is part of the legacy system, PLC-5 platform, mainly used to expand I/O capability as well as provide a safe and practical means of removing or disconnecting an I/O rack or group of I/Os to the backplane. This specific module functionality comes integral to most modern communication adapters today. " -DO Supply Tech

Dimensions For 1771-ALX

Size
Input Type
Panel Cutout Height in mm
Panel Cutout Width in mm
Terminal Height in mm
Terminal Width in mm
Terminal Overall Depth in mm
Terminal Mounted Depth in mm

Dimensions For 1771-ALX

Resolutions For 1771-ALX

About

Technical Specifications for 1771-ALX

ManufacturerRockwell Automation
Power supply:1771 external or slot power supplies
Chassis distance:30 cable-meters (98.4 cable-feet)
Keying:Between 54 and 56; Between 4 and 6
Cable terminator:1771-CXT
Interconnect cable1771-CX1 (1 meter); 1771-CX2 (2 meters); 1771-CX5 (5 meters)
Installation slot:Left most slot
Module locationLeftmost slot in any 1771 I/O chassis
Max Backplane Current (at 5 Volts DC)1.2 A
Compatibility:Series A or B 1771 IO chassis
BrandAllen-Bradley
LED indicators:ACTIVE: ADAPTER FAULT; I/O RACK Fault
Part Number/Catalog No.1771-ALX
Module TypeLocal I/O adapter
Rack AddressingAny method
Manufacturer Rockwell Automation / Allen-Bradley
Part Number/Catalog No. 1771-ALX
PortExtended Local I/O Adaptor
Series PLC-5 System
Rate of CommunicationN/A (Parallel)
Module Type Local I/O adapter
Compatible chassisSeries A or B 1771 I/O
ConnectorsD-Shell
Compatible Power supply1771 external or slot power supplies
Backplane Current (at 5 Volts)1.2 Amperes
Backplane Current at 5.1 Volts 1.2 A
Cable1771-CX1 (1 m), 1771-CX2 (2 m), 1771-CX5 (5 m)
Chassis Distance30 cable-meters (98.4 cable-feet)
Operating Temperature32-140 F (0-60 C)
Cable Terminator1771-CXT
Storage Temperature-40-185 F (-40-85 C)
Weight1.2 lbs (0.6 kg)
Keying Upper connector: between 54 and 56; Lower connector: between 4 and 6
Lower Connector Keying16-18
Power Dissipation:6.3 Watts (max.); 5.7 Watts (min.)
Thermal Dissipation:21.48 BTU/hr (max.); 19.44 BTU/hr (min.)
Operational Temperature0 to 60 oC (32 to 140 oF)
Dimensions3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)
Storage Temperature -40 to 85 oC (-40 to 185 oF)
UPC10612598115379
Relative Humidity5 to 95% (without condensation)
ManufacturerRockwell Automation
Power supply:1771 external or slot power supplies
Chassis distance:30 cable-meters (98.4 cable-feet)
Keying:Between 54 and 56; Between 4 and 6
Cable terminator:1771-CXT
Interconnect cable1771-CX1 (1 meter); 1771-CX2 (2 meters); 1771-CX5 (5 meters)
Installation slot:Left most slot
Module locationLeftmost slot in any 1771 I/O chassis
Max Backplane Current (at 5 Volts DC)1.2 A
Compatibility:Series A or B 1771 IO chassis
BrandAllen-Bradley
LED indicators:ACTIVE: ADAPTER FAULT; I/O RACK Fault
Part Number/Catalog No.1771-ALX
Module TypeLocal I/O adapter
Rack AddressingAny method
Manufacturer Rockwell Automation / Allen-Bradley
Part Number/Catalog No. 1771-ALX
PortExtended Local I/O Adaptor
Series PLC-5 System
Rate of CommunicationN/A (Parallel)
Module Type Local I/O adapter
Compatible chassisSeries A or B 1771 I/O
ConnectorsD-Shell
Compatible Power supply1771 external or slot power supplies
Backplane Current (at 5 Volts)1.2 Amperes
Backplane Current at 5.1 Volts 1.2 A
Cable1771-CX1 (1 m), 1771-CX2 (2 m), 1771-CX5 (5 m)
Chassis Distance30 cable-meters (98.4 cable-feet)
Operating Temperature32-140 F (0-60 C)
Cable Terminator1771-CXT
Storage Temperature-40-185 F (-40-85 C)
Weight1.2 lbs (0.6 kg)
Keying Upper connector: between 54 and 56; Lower connector: between 4 and 6
Lower Connector Keying16-18
Power Dissipation:6.3 Watts (max.); 5.7 Watts (min.)
Thermal Dissipation:21.48 BTU/hr (max.); 19.44 BTU/hr (min.)
Operational Temperature0 to 60 oC (32 to 140 oF)
Dimensions3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)
Storage Temperature -40 to 85 oC (-40 to 185 oF)
UPC10612598115379
Relative Humidity5 to 95% (without condensation)

About 1771-ALX

The 1771-ALX is an Allen-Bradley Local I/O adapter module. This module is part of the PLC-5 system that is used to extend the I/O capability of the PLC-5 system and provide a safe and practical method of disconnecting I/O modules from the bus without disrupting the backplane connection.

The 1771-ALX is installed to any Series A and B chassis of any slot, and compatible for use with any 1771 external or slot power supplies. It has One (1) I/O adapter port where the interconnect cable with catalog numbers 1771-CX1 (1 meter); 1771-CX2 (2 meters) and 1771-CX5 (5 meters) may be connected. The 1771-ALX’ maximum allowable chassis distance is 30 cable-meters or 98.4 cable-feet.

The 1771-ALX is installed to the leftmost slot of the 1771 I/O chassis. It has a backplane current draw of 1.2 A @ 5VDC with compatible keying of between 54 and 56 for upper connector and between 4 and 6 for lower connector. A cable terminator is needed to be installed at the last module to determine the end of the expansion. This terminator plug has a part number of 1771-CXT.

The 1771-ALX has power dissipation of 6.3 Watts, maximum and 5.7 Watts, minimum while the thermal dissipation is 21.48 BTU/hr, maximum and 19.44 BTU/hr, minimum. It must be installed at an environment with temperature range of 0 to 60 oC (32 to 140 oF) and stored at -40 to 85 oC (-40 to 185 oF) with relative humidity of 5-95%, non-condensing. During installation, power to the backplane must be removed to avoid damage to the module and nearby components.

The 1771-ALX PLC 5 Local I/O Adapter Module by Allen-Bradley is an I/O chassis module which allows for disconnection of the rack from the BUS without disrupting or shutting down the entire system. The module is located on the leftmost I/O slot of the 1771 I/O chassis and it has a 30m maximum cable length for connection-to-system which can be a combination of 1m (1771-CX1), 2m (1771-CX2), or 5m (1771-CX5) cables. It has a 1771-CXT terminator plug for termination of the 1771-ALX PLC 5 Local I/O Adapter Module on the BUS with the PLC 5 Programmable Controller and when operational, the adapter module dissipates 6.3W maximum heats and 21.48 BTU/hr thermal dissipation. The module draws a backplane current of 1.2A at 5V DC and is designed to function without de-rating at a temperature range between 0 and 60 0C (32 and 140 0F) at a relative humidity range of 5-95% without condensation. The 1771-ALX has 3 LED light indicators which show the status and also allows users to troubleshoot the module.

FAQ for 1771-ALX

How many local I/O adapters can I install in one control system?


It supports up to 16 Local I/O, 1771-ALX adapters.

How is the module starting group and rack address assigned to this module?


Rack address and module starting group is assigned using the Address switch assembly.

What is the backplane current draw of the 1771-ALX?


The 1771-ALX has a backplane current draw of 1.2 A at 5VDC.

1. What is the maximum allowable chassis distance of the 1771-ALX?


The 1771-ALX supports up to 30 cable-meters or (98.4 cable-feet).

2. What is the compatible 1771 chassis for installation of the 1771-ALX?


The 1771-ALX is compatible with Series A or B 1771 I/O chassis.

3. What is the appropriate cable terminator for use with the 1771-ALX?


The 1771-ALX requires installation of a cable terminator at the last I/O adapter module. The cable terminator has part number of 1771-CXT/

Technical Description of 1771-ALX

The 1771-A3B1 is an Allen-Bradley local I/O adapter. This adapter provides modularity as it allows rack disconnection without shutting the entire control system. It is installed in the left-most slot on the chassis and supports a connection distance of 30 cable-meters or 98.4 cable-feet. It may be used with the 1771-CX1, 1771-CX2, and 1771-CX5 interconnect cables and cable terminator with catalog number 1771-CXT.
Repairs
Type Lead Time Price Action
Repair Service 2-4 weeks Askenvelope Get Quote

Our highly skilled technicians can repair your 1771-ALX. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Type Lead Time Price Action
Repair Service 2-4 weeks Askenvelope Get Quote

Our highly skilled technicians can repair your 1771-ALX. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions

Please refer to the manual for more information about the 1771-ALX such as the wiring diagrams, data sheets and migration or obsolescence details.

Revision Part # Also Known as Availability
1771-ALX Ser A
1771-ALX/A, Series A, Rev A Request Quote

Common misspellings:
  • l771-ALX
  • 177l-ALX
  • 1771-A1X
  • 1771ALX
PDF
1771-ALX PDF
Reviews

Reviews for 1771-ALX

Internal Review

"The 1771-ALX is a Local I/O adapter module that is used to extend the I/O capability of any 1771-I/O rack. This rack adapter is comparable to today’s rack extenders that serve the same purpose. Rack extension is different from Distributed I/O architecture. Rack extension uses a rack extension cable such as the 1771-CX1, 1771-CX2 and 1771-CX5 while distributed I/O architecture utilizes an industrial communication protocol to extend I/O chassis. " -DO Supply Tech

Product Review

"The 1771-ALX is a local I/O adapter module from Allen-Bradley. It is part of the legacy system, PLC-5 platform, mainly used to expand I/O capability as well as provide a safe and practical means of removing or disconnecting an I/O rack or group of I/Os to the backplane. This specific module functionality comes integral to most modern communication adapters today. " -DO Supply Tech