1-919-535-3180 | 1-800-360-6802

GE / IP FANUC Series 90/30 In Stock

A Global Supplier of Industrial Electronics



Mon-Fri 8AM-5PM EST



Rated 4.3/5 Based on 25 ratings.

Rate your purchase of the 1771-AF1

In Stock! 1771-AF1 AB PLC5 FIber Optic Converter Module Stand Alone 1771-AF1/B 1771AF1/B 1771-AF1 |

In Stock! 1771-AF1 AB PLC5 FIber Optic Converter Module Stand Alone 1771-AF1/B 1771AF1/B 1771-AF1 | In Stock! 1771-AF1 AB PLC5 FIber Optic Converter Module Stand Alone 1771-AF1/B 1771AF1/B 1771-AF1 |

Includes a PDF Electric and Supply warranty.

(Never Used)



3 Yr PDF Supply warranty

What is Surplus?



2 In Stock

2 Yr PDF Supply Warranty

What is Refurbished?

Repair Service


Fast Turnaround

2 Yr PDF Supply warranty


Order Today - Ships Today!

*US continental orders placed Monday-Friday before 4:30pm EST!

Other Available Revisions for the 1771-AF1 1771-AF1/A1771-AF1/B

Common misspellings:
  • l771-AF1
  • 177l-AF1
  • 1771-AFl
  • 1771AF1


The 1771-AF1 is a stand-alone fiber-optic converter. The 1771-AF1 is wired through a terminal block and it is powered through an external power source of 5V. The module operates within a temperature range of -25 to +70 degrees Celsius and it has a storage temperature range of -25 to +85 degrees Celsius. For the 1771-AF1, the twinaxial cable should be connected to the terminal block. The 1771-AF1 functions as a repeater and increases the strength of the electrical signals it receives to reach a maximum distance of 30,000 feet.


The 1771-AF1 communicates at a rate of 57.6K bits per second and it reaches a communication rate of 115,200 bits per second when using the duplex fiber-optic cable. For easier operation and quicker troubleshooting, the 1771-AF1 has indicators to show the channel and the power status. The module is used in an electronically noisy environment to enhance communication between 2 PLC-5 systems. This is achieved allowing the DH+ and I/O signals to travel in the same fiber-optic cable.


The 1771-AF1 fiber optic converter module acts as an encoder and decoder where it converts electrical signals to optical signal to be transmitted through a fiber-optic cable. It also converts the optical signal received back to electrical signals. They are then transmitted through the twinaxial cable. The 1771-AF1 converter module uses a pre-terminated fiber-optic cable and a twinaxial cable with lengths not exceeding 256 feet. At 5V, the 1771-AF1 module draws a current of 1A. A star configuration is used with the 1771-AF1. The module has to be installed in enclosures with the NEMA type 12 rating. When using the 100/140um, the maximum length between 2 fiber-optic modules cannot exceed 6500 feet. A combination of twinaxial and fiber-optic cables cannot exceed a distance of 43,000 ft.

AB PLC5 FIber Optic Converter Module Stand Alone 1771-AF 1771-AF1/B

PDF Electric & Supply Inc. sells new, new surplus and refurbished products which are sourced through independent channels. All warranties and support, if applicable, are with PDF Electric & Supply Inc. and not the manufacturer. PDF Electric & Supply Inc. is not an authorized distributor or representative for the listed manufacturers and makes no representations as to any quality control performed by any listed manufacturer on the products. The products listed on this website may vary as to their country of origin; the accessories, and other items included with the product; and the language used on the packaging, the parts, and any related instructions or printed material related to the products. This website is not sanctioned or approved by any manufacturer or tradename listed. Designated trademarks, brand names and brands appearing herein are the property of their respective owners.