Colorlight OP4 Fiber Optic Transceiver for LED Displays
The Colorlight OP4 converts optical and electrical signals for an LED display control system. Its compact housing can be installed inside or behind an LED display cabinet, with the ports grouped on one side for straightforward cabling. It can operate as a pair of OP4 units or with a compatible processor that has a fiber output port.
OP4 Ports and Key Specifications
| Item | Specification |
|---|---|
| Fiber ports | 2 duplex LC fiber ports, 2.5Gb/s per port |
| Ethernet ports | 4 RJ45 Gigabit Ethernet ports, 1Gb/s per port |
| Optical module | Included single-mode dual-core LC module; 1310 nm; up to 2 km |
| Power | DC 5V input; locking power adapter included |
| Operating mode | Bidirectional optical-electrical conversion; plug and play; hot-swappable |
Connection and Compatibility
Use two OP4 transceivers as a paired fiber link, or connect an OP4 to a Colorlight processor with a suitable fiber output. Check the processor port and optical module specifications before ordering. The Colorlight specification recommends 9/125 µm single-mode LC-LC fiber with PC or UPC connectors. The quoted 2 km reach applies to the supplied optical module and suitable fiber cabling.
No driver installation or device configuration is required for normal operation. The front-to-rear ventilation design helps dissipate heat when the unit is mounted in an enclosed LED display installation.
Typical LED Display Application
The diagram below illustrates where the OP4 fits in a fiber-connected LED display control system.

Frequently Asked Questions
How many Ethernet outputs does the Colorlight OP4 provide?
It provides four RJ45 Gigabit Ethernet ports, each specified at 1Gb/s.
Can the OP4 be used without a second OP4?
Yes, when the connected LED processor has a compatible fiber output. Otherwise, use a pair of OP4 units.
What fiber distance does the included module support?
The included single-mode dual-core LC optical module is specified for up to 2 km. Confirm the fiber cable and connector type for your installation.
Download Specification
Colorlight OP4 Fiber Transceiver for LED Control System Specification
Need help confirming your controller and fiber connection? Contact our team with your controller model and planned fiber run.




