Indoor fiber optic cables are designed for use within buildings or controlled environments where the cables are protected from harsh external conditions. They are used for high-speed data transmission and are commonly used in networking, telecommunications, and data center applications. Here are some common types of indoor fiber optical cables:

1. Tight-Buffered Fiber Cable: Tight-buffered cables are designed with a protective coating directly applied to the individual fibers. This coating provides mechanical protection and eliminates the need for additional buffer tubes. Tight-buffered cables are flexible and easy to terminate, making them suitable for indoor applications where flexibility and ease of installation are important.
2. Distribution Fiber Cable: Distribution cables are designed for short-distance indoor applications, typically within a data center or building. They contain multiple tight-buffered fibers bundled within a single jacket. Distribution cables are suitable for installations that require high fiber counts in a limited space.
3. Breakout Fiber Cable: Breakout cables consist of multiple tight-buffered fibers, each with its own protective jacket. These individual fibers can be separated easily from the main cable, which makes breakout cables ideal for applications requiring frequent terminations and connections.
4. Ribbon Fiber Cable: Ribbon cables contain multiple fibers that are organized in flat ribbons within the cable. Each ribbon can contain several fibers. Ribbon cables are designed to maximize fiber density, making them suitable for high-fiber-count installations where space is limited.
5. Simplex and Duplex Fiber Cable: Simplex cables contain a single fiber, while duplex cables consist of two fibers. These cables are commonly used for point-to-point connections and are often used for applications like connecting network equipment or patching.
6. Patch Cords and Pigtails: Patch cords and pigtails are short lengths of indoor fiber optical cable terminated with connectors on one or both ends. They are used for connecting devices and equipment in data centers, telecommunications rooms, and other indoor settings.
7. Plenum-Rated Fiber Cable: Plenum-rated cables are designed for use in plenum spaces, which are the air handling areas in buildings. These cables have fire-resistant jackets that emit minimal smoke and do not release toxic fumes in the event of a fire, making them suitable for installations where fire safety is a concern.
8. Non-Plenum (Riser) Fiber Cable: Riser-rated cables are used for vertical runs between floors in a building. They have jackets that are fire-resistant but may emit some smoke and fumes. Riser cables are suitable for installations where fire safety is important, but plenum-rated cables are not required.

When selecting an indoor fiber optical cable type, consider factors such as the environment, installation requirements, data transmission speeds, and the specific application’s needs. Additionally, ensure that the cable complies with relevant industry standards to ensure optimal performance and compatibility.