Colorlight OP4 Fiber Optic Transceiver
The Colorlight OP4 converts between optical and electrical signals in an LED display control system. It provides two 2.5 Gb/s optical ports and four 1 Gb/s RJ45 Ethernet ports. The standard single-mode, dual-core LC optical module is specified for a 2 km transmission distance.
Connecting an LED control system over fiber
The OP4 can be used as a pair or with a compatible master controller that has an optical output. Its adaptive bidirectional operation supports optical-to-electrical and electrical-to-optical conversion. No driver installation or device settings are required, and hot swapping is supported.
All connectors are on the same side for wiring access. The compact housing can be installed behind or inside the display, with front and rear ventilation. Plan placement within the operating temperature and humidity limits below.
Technical Specifications
| Parameter | Specification |
|---|---|
| Optical ports | 2 |
| Optical data rate | 2.5 Gb/s |
| Ethernet ports | 4 × RJ45 Gigabit Ethernet |
| Data rate per Ethernet port | 1 Gb/s |
| Fiber mode | Single-mode, dual-core |
| Optical connector | Duplex LC |
| Optical wavelength | 1310 nm |
| Transmission distance | 2 km with the specified optical module |
| Power adapter | Input: AC 100–240 V, 50/60 Hz; output: DC 5 V |
| Power | 15 W |
| Operating temperature | −20°C to 70°C |
| Operating humidity | 0–80% RH, non-condensing |
| Storage temperature | −25°C to 80°C |
| Storage humidity | 0–90% RH, non-condensing |
| Dimensions (W × H × D) | 170.8 × 45.0 × 82.5 mm |
| Net weight | 0.3 kg |
Application Diagram

Frequently Asked Questions
How far can the Colorlight OP4 transmit?
The V1.0 specification gives a 2 km transmission distance for its standard single-mode, dual-core LC optical module.
How many ports does the OP4 have?
It has two optical ports with a 2.5 Gb/s data rate and four RJ45 Ethernet ports rated at 1 Gb/s each.
Do I need two OP4 transceivers?
The OP4 supports paired use. It can also work with a compatible master controller that provides an optical output, so the required arrangement depends on the controller connection.
What fiber connector does the OP4 use?
The specified optical module uses a duplex LC connector, single-mode dual-core fiber and a 1310 nm wavelength.
Does the OP4 need drivers or configuration?
No driver installation or device settings are required for the supported conversion function. The specification lists adaptive bidirectional operation and hot-swapping support.




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