Where is the LC-LC 10 Gigabit single-mode fiber patch cable connected to?

　　LC-LC 10 Gigabit single-mode fiber patch cable is a high-performance fiber optic connection component, mainly used to connect network equipment that supports high-speed data tranSMission. Its connection scenarios and uses are as follows:

　　Connect location and device

　　Equipment type:

　　10 Gigabit switch: SFP + optical module port (LC interface) connected to the switch.

　　Router: Connect to the router, 10 Gigabit optical port (such as 10G SFP + slot).

　　Fiber optic transceiver: LC fiber optic input/output interface connecting the transceiver.

　　Server network interface card: 10G/25G network interface card connected to the server (need to support LC fiber module).

　　Storage devices, such as Fibre Channel ports for SAN storage arrays (some support LC interfaces).

　　Typical application scenarios:

　　Data center: High-speed data transmission (e.g., east-west traffic) between racks or cabinets.

　　Wide area network (WAN): long-distance communication (single-mode fiber supports transmission over 10 kilometers).

　　Enterprise network core layer: Connecting core switches and convergence layer devices.

　　Jumper characteristics and precautions

　　single mode fiber (OS2):

　　Wavelength: 1310nm/1550nm, suitable for long distances (≥ 500 meters).

　　Low attenuation: about 0.35dB/km @1550nm, ensuring signal quality.

　　10 Gigabit Rate:

　　It needs to be matched with a 10 Gigabit optical module (such as SFP + 10G SR/LR).

　　LC connector advantages:

　　High density: suitable for devices with dense ports (e.g. 40G/100G QSFP + split using LC interface).

　　Push-pull locking: easy to plug and unplug, suitable for frequent maintenance environments.

　　Connection diagram

　　Common mistakes and solutions

　　Rate mismatch:

　　Problem: Jumpers support 10 gigabit, but device ports only support gigabit.

　　Resolution: Confirm the device port rate (e.g. SFP + vs SFP).

　　Fiber type confusion:

　　Problem: Misusing multimode jumpers to connect single-mode devices.

　　Solution: Check the jumper label (yellow for single mode, orange/aqua for multi mode).

　　Distance restrictions:

　　Problem: Single-mode jumpers that are too long cause signal attenuation.

　　Solution: Select the jumper length according to the power budget (usually ≤ 10km).

　　summarize

　　LC-LC 10 Gigabit single-mode Fiber Patch Cords connect two fiber ports that support 10Gbps rates (such as SFP +) through LC connectors at both ends. Module), suitable for long-distance and high-bandwidth scenarios such as data centers and wide area networks. When using, it is necessary to ensure equipment compatibility, fiber type matching, and reasonable control of transmission distance.