In substation communication transformation, link acceptance indicators are often normal, but attenuation increases significantly after half a year of operation. The root cause often occurs in the laying process. Armored jumpers used in the right place can save a lot of troubleshooting work later.

What is the difference between armored and ordinary jumpers?

Ordinary indoor jumpers only have sheaths and reinforcements, so they are afraid of being bitten, stepped on, and bent at right angles. Armored jumpers add a metal armor layer to the sheath, which significantly improves their resistance to extrusion and rodent bites, at the expense of thicker wire diameter, larger turning radius, and higher price. The idea is to differentiate between sections rather than one-size-fits-all: use armor for locations that are frequently touched by people or accessible to rodents, and use ordinary jumpers for short distances inside the cabinet.

Which sections are worthy of armoring?

• The upper and lower lead sections between the outdoor terminal box and the cable trench;
• The pigtails in the trench are parallel to the power cables and may be crushed by falling objects;
• The bridge section leading to the ODF of the communication equipment room has many cross operations and a high probability of collision;
• In-rack short jumpers are still availableLC-LC single mode dual core jumperFor this kind of ordinary specifications, the ordinary mixed strategy in the main armored frame is more cost-effective.

Construction adheres to bend radius and labeling

It is recommended that the bending radius of single-mode pigtail construction should not be less than 30mm, and the coil diameter should be more than 80mm. After exceeding this limit, macro-bending loss will increase significantly. The labels at both ends should be written in a three-section format with the equipment name and core number at both ends. It is recommended to machine type rather than handwriting. Handwriting is easy to fade in a humid environment; andSC-SC single mode single core jumperWhen these jumpers of the same type at both ends are used together, if the directions are marked wrong, it is easy to pull out the wrong fibers during maintenance.

Using armor in the right section saves money and is more practical than using armor across the board. Material binning and specifications can be obtained from Wolflight technical support, the working phone number is 0755-83179002.