The ComNet series of video transmitters and receivers can transmit 1, 2, or 4 independent 10-bit digital video signals and 1, 2, or 4 contact closures over multimode or single mode optical fibers for distances up to 4 km over multimode fiber and 54 km over single mode fiber. The modules support NTSC, PAL, or SECAM video standards and have features such as transient protection, status indicators, hot-swappable modules, and a lifetime warranty.