**CFL-Center** product is a fiber optic digital link produced by **Cominet** company and designed to transmit video, audio and data signals through fiber optic cables. This device is used as a solution for optical fiber communication and can be installed in 19-inch racks. Among the important features of this device, the following can be mentioned: 1. **Power supply**: The device has a dual power supply with the ability to support 220 V AC voltage, which allows quick replacement of the power supply. 2. **SNMP Management**: This product supports SNMP-V2 and MIB-Ⅱ management protocols. 3. **Multiple Inputs**: The device has 12 slots for fiber optic link cards, which allows multiple video, audio or data signals to be connected through a single fiber optic pair. 4. ** Long-distance transmission capability **: It is possible to transmit signals up to a distance of 80 km, which is very suitable for industrial applications and video surveillance. This device is mainly used in security systems, telecommunication networks and bulk data transmission. Also, due to the use of optical fiber, it is immune to electrical noise and performs better than coaxial cables.