Standardized fiber optic patch cords can make the optical cable look neat, facilitate future project maintenance, and make it easier to find your fiber or locate faults. This is a good thing that can be done once and for all.
1. What is a patch cord?
Fiber optic patch cords are mainly used to connect network devices at both ends, and are mainly used in the following three scenarios.
Between devices
Between devices and fiber optic patch panels
Between fiber optic patch panels
Classification of optical fibers
Classification by fiber optic interface
FC connector: Uses a metal sleeve for external reinforcement and is fixed with screw fasteners. Generally used on ODF (most used on MDF)
SC connector: Connects GBIC modules, its housing is rectangular, and the pin lock is fixed without rotation. (Most used on routers and switches)
ST connector: Commonly used in ODF, the housing is round and fixed with screw fasteners. (ST is usually used for 10Base-F.)
LC connector: Used to connect SFP modules, it is made of an easy-to-operate modular jack (RJ) locking mechanism. (Commonly used in routers)
How to use fiber optic patch cords?
For more details, see: What are the types of fiber optic connectors? How to choose
According to the length
1.5m, 2m, 3m, 5m, 10m, 15m, and 20m are available, and can also be customized.
According to the usage
LC interface is usually used between devices.
FC interface is often used in ODF to connect the remote core.
SC interface is often used for ODF and equipment.
2. What are the layout principles of fiber jumpers?
In order to reduce the difficulty of subsequent operation and maintenance, it is best to follow the following principles when deploying.
Fiber jumper operation must follow the principles of less crossover, neat and beautiful wiring, easy operation, and less space.
The length of the fiber jumper must be controlled within the remaining length of 500mm.
Fiber jumpers of inappropriate length shall not be used, and flanges are not allowed to connect two sections of fiber jumpers.
Each fiber jumper should ensure that the radius of curvature at each location is greater than 400mm.
Connect one end of the optical fiber to the device port, pass the other end through the wiring trough, pull out the fiber tray, wind the excess optical fiber into a circle, lay it on the fiber tray, wrap it with a fiber tie, and push it onto the fiber tray, and connect the other end to the device or ODF rack.
How to use fiber jumpers?
General requirements for fiber optic wiring: ① For optical fiber routing from the top, arrange the cable downward on the outside of the ODF rack, select the most suitable disk fiber column with the remaining optical fiber, route it upward on the inside of the ODF rack, horizontally ODM along the bottom edge of the rack, and vertically upward to the corresponding terminal. ② A fiber jumper is only allowed to go up once (along the outside of the ODF rack) or up once (along the inside of the ODF rack) in the ODF rack. It is prohibited to wind, cross, or hang between multiple fiber columns, that is, no fiber winding is allowed on the top edge of each fiber column. ④ All jumpers must be laid in the ODF cabinet, and it is strictly prohibited to lay or fly outside the cabinet.
Do not wind a fiber between multiple fiber trays.
When the optical fiber passes through the cabinet, use a sleeve to protect the optical fiber from being squeezed by other cables. If there is a patch panel, lay the optical fiber in the patch panel.
How to use the optical fiber patch cord?
When connecting the optical fiber, do not pull it too tight and the connector should be at right angles.
How to use the optical fiber patch cord?
All optical fibers must be laid in the wiring trough. Do not lay optical fibers or spread cables outside the rack.
How to use the optical fiber patch cord?
Do not use optical fibers that are insufficient in length. Do not use adapters to connect two optical fibers.
Clean the optical fiber end face when inserting the optical fiber. In a production environment, do not touch the end of the optical fiber with your hands or let the end of the optical fiber touch objects.
When connecting the optical fiber, insert the optical connector vertically into the optical port. The entire optical fiber connector should be inserted in place. The commonly used SC and LC connectors will hear a click, indicating that they are in place.
How to use the optical fiber patch cord?
Do not pull the optical fiber forcibly. Otherwise, the optical fiber and connector may break.
How to use the optical fiber patch cord?
Do not twist the optical fiber. To avoid twisting of the optical fiber, coil the optical fiber according to its natural relaxation state.
How to use optical fiber jumpers?
3. What is the process of laying optical fiber jumpers?
After understanding the concept and wiring principle of optical fiber jumpers, you can start laying out optical fiber jumpers, including six steps:
How to use optical fiber jumpers?
1. Preparation
Prepare tools, materials and hardware information according to business needs.
Tools: markers, sleeves, labels, oil pens, notepads, pliers, electrical tape.
Materials: optical fiber, optical module, optical fiber binding tape (nylon adhesive tape), the quantity, model or length of the corresponding materials depends on the needs.
Hardware preparation: Understand the IDC, the location of the equipment, and the ODF, and record them.
Obtaining tapes of various colors can distinguish optical fiber jumpers for different purposes.
2. Select optical fiber
Select the appropriate optical fiber according to the interface type and length.
Select the corresponding optical fiber according to the interface, beam splitter, and flange head on the fiber splitter box.
Choose the length of the optical fiber so that the margin of the optical fiber length is within 50 cm.
3. Laying the optical fiber
Arrange the optical fiber according to the rules of the optical fiber jumper.
Find the port, splitter or fiber splitter.
Remove the optical fiber connector.
Insert the connector at one end of the optical fiber into the corresponding device port.
Lay the optical fiber along the wiring area to the corresponding device.
Insert the connector at the other end of the optical fiber into the corresponding device port.
4. Paste the label
To facilitate equipment maintenance, labels should be affixed at both ends of each optical fiber 1cm~2cm away from the connector.
All optical fiber labels must be machine-marked, and handwriting is not allowed.
When multiple optical fibers are placed at the same time, first mark the optical fiber with a marker to avoid confusion, and affix the optical fiber label after placement.
Both ends of the optical fiber need to be marked.
After pasting, the label should face the same direction. For vertical cables, the head of the label usually faces left. For horizontal cables, the head of the label usually faces down.
How to use optical fiber jumpers?
5. Bundling optical fibers
Use optical fiber bundling tape to bundle optical fibers at a certain distance.
When bundling optical fibers, the distance between the bundling tapes is 20cm.
When the optical fiber turns, tie the bundling tapes on both sides of the corner to prevent the fiber core from being broken due to excessive force at the bend of the optical fiber. The bending radius of 2mm optical fiber cannot be less than 30mm. The bending radius of 3mm optical fiber cannot be less than 40mm.
How to use optical fiber jumpers?
The contact surface between the bundling tape and the optical fiber is a rough surface, and the hook surface of the bundling tape does not contact the optical fiber.
The optical fiber should be straightened before bundling. Optical fiber bundling tape The optical fiber should be tied tightly. Do not tie the optical fiber too tightly. Do not stagger the optical fiber.
How to use optical fiber jumpers?
6. Finishing work
Tool sorting: sort the tools used during installation to the designated location.
Residue recovery: Recycle the project residue.
Clean up debris: Clean up the garbage generated by the installation to ensure a clean environment.
Complete the installation report: Forward the on-site installation report to the relevant person in charge. If the site is running normally, notify the operation and maintenance personnel that the fiber jumper has been completed.
Standardized fiber jumpers can make the optical cable look neat, facilitate future project maintenance, and make it easier to find your fiber or locate faults. This is a good thing that is done once and for all.