What is the difference between fiber pigtail and patch cord?
In today''s world, fiber optic technology has become an essential part of our lives, whether it''s in the field of telecommunications, data centers, or any other industry that requires fast and reliable data transmission. Fiber optic cables come in different types, such as single mode, multimode, armored, and so on, but the most critical components of any fiber optic system are the connectors and cables that connect the various equipment and devices.
What is a fiber pigtail?
A fiber pigtail is a single fiber optic cable that has a pre-installed connector at one end and a length of exposed fiber at the other end. It is usually used to connect a fiber optic cable to a device or equipment that requires a specific type of connector. Fiber pigtails are available in different types of connectors, such as LC, SC, ST, and so on, depending on the application.
What is a patch cord?
A patch cord is a fiber optic cable that has connectors at both ends. It is used to connect two devices or pieces of equipment directly. Patch cords are also available in different connector types, and their length can vary from a few centimeters to several meters, depending on the application.
The physical differences
The most apparent difference between fiber pigtail and patch cord is their physical appearance. A fiber pigtail has a connector at one end and an exposed fiber at the other end, while a patch cord has connectors at both ends.
Another significant difference is the length of the exposed fiber. A fiber pigtail usually has a length of about 1 to 2 meters of exposed fiber, while a patch cord can have a length of up to 30 meters or more.
The functional differences
The functional differences between fiber pigtail and patch cord are more critical than their physical differences. The primary function of a fiber pigtail is to provide a connection between a fiber optic cable and a device or equipment that requires a specific type of connector. It is a permanent connection that cannot be disconnected easily.
On the other hand, a patch cord is a temporary connection that can be easily connected and disconnected as needed. It provides a direct connection between two devices or pieces of equipment, allowing them to communicate and exchange data.
When to use a fiber pigtail?
Fiber pigtails are typically used in situations where a specific type of connector is needed to connect a device or equipment to a fiber optic cable. For example, if a device needs to be connected to a single mode fiber optic cable with an LC connector, a fiber pigtail with an LC connector can be used to provide the connection.
Fiber pigtails are also used in situations where a splicing operation is involved. In this case, a fiber pigtail with a pre-installed connector can be spliced to the fiber optic cable using a fusion splicer or mechanical splice.
When to use a patch cord?
Patch cords are typically used when a direct connection between two devices or pieces of equipment is required. They are commonly used in data centers, server rooms, and other applications where patch panels are used to manage the connections between various devices.
Patch cords are also used in situations where a quick and temporary connection is needed. For example, if a technician needs to test a fiber optic transceiver, a patch cord can be used to connect the transceiver to a test instrument.
Conclusion
In summary, fiber pigtail and patch cord are both essential components of any fiber optic system, and each has its unique functions and applications. While fiber pigtails are used to provide a connection between a fiber optic cable and a device or equipment that requires a specific type of connector, patch cords are used to provide a direct and temporary connection between two devices or pieces of equipment.
Understanding the differences between fiber pigtail and patch cord is essential for anyone working with fiber optic technology to ensure that the right components are used for each application.