Ar a type of optical module

The two primary types of optical modules are pluggable and embedded modules. Pluggable or hot-swappable modules can be easily inserted or removed from a networking device without shutting it down. Optical modules typically have an electrical interface on the side that connects to the inside of the system and an optical interface on the side that connects to the outside. Optical modules are a core component of optical fiber communication systems. They work for short distances or fast data transfers. Its fundamental role is to bridge the gap between electrical equipment and optical fibers. [pdf]