The 1757-FFLD4 is a critical component in the Allen-Bradley ControlLogix family, engineered to provide robust fiber-optic communication for distributed control systems. This module eliminates electrical interference and ground loop issues by converting standard copper signals to optical signals, ensuring high-integrity data transfer across expansive plant floors. With its four independent channels and support for multimode fiber, the 1757-FFLD4 is the preferred solution for applications requiring galvanic isolation and extended transmission distances. Whether deployed in oil and gas, power generation, or heavy manufacturing, this module delivers deterministic performance with minimal latency.
| Parameter |
Specification |
| Product Type |
Fiber-Optic Link Module |
| Model Number |
1757-FFLD4 |
| Number of Channels |
4 |
| Fiber Type |
Multimode (62.5/125 µm or 50/125 µm) |
| Data Rate |
100 Mbps per channel |
| Maximum Distance |
2 km (1.24 miles) with multimode fiber |
| Connector Type |
ST or SC (depending on variant) |
| Communication Protocol |
Proprietary ControlLogix fiber-optic protocol |
| Power Supply |
5V DC from backplane (via ControlLogix chassis) |
| Power Consumption |
1.5 W typical |
| Operating Temperature |
-20°C to +70°C (-4°F to +158°F) |
| Storage Temperature |
-40°C to +85°C (-40°F to +185°F) |
| Relative Humidity |
5% to 95% non-condensing |
| Vibration Resistance |
5 g at 10–500 Hz (per IEC 60068-2-6) |
| Shock Resistance |
30 g (per IEC 60068-2-27) |
| EMC Compliance |
FCC Part 15, EN 55011, EN 61000-6-2 |
| Safety Certification |
UL 508, CSA C22.2 No. 142, CE Mark |
| LED Indicators |
Channel status (4), link health, power, fault |
| Hot-Swap Capable |
Yes |
| Dimensions (H x W x D) |
5.25 in x 1.75 in x 4.5 in (133 mm x 44 mm x 114 mm) |
| Weight |
0.5 lbs (0.23 kg) |
| Warranty |
1 year (extended options available) |
What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22