ST Fiber Optic adapter – Rugged Fiber Connector for Secure and Quick Installations

SC adapter (Subscriber Connector Adapter), as one of the most classic and widely used connection components in the field of optical fiber communication, relies on itsSMoothing: antialiased; font-family: -apple-system, BlinkMacSystemFont, " segoe="" helvetica="" pingfang="" hiragino="" sans="" microsoft="" yahei="" source="" han="" apple="" color="" ui="" liST-STyle:="" margin:="" scrollbar-width:="" font-weight:="">cost-effectiveandease of useIt continues to play an important role in scenarios such as access networks, fiber-to-the-home (FTTH), security monitoring, and traditional data centers. The following is an in-depth analysis based on technical details, application scenarios, and user requests:

ST ADAPTOR Specification

1 Insertion loss

2 Part material

3、Requirement

First, the core functions of the SC adapter

1. mechanical coupling mechanism
   passed推拉式塑料卡扣实现快速插拔，无需旋转工具，支持单工（Single）或双工（Duplex）光纤跳线、尾纤的端接。

2. End face alignment and fixation
   internal adoption陶瓷或塑料套筒（ferrule holder），确保连接器端面（PC、UPC、APC）精准对接，并通过弹簧压力保持物理接触。

II. Detailed explanation of technical characteristics

1. Physical structure and size

• Shell size：
  • 方形设计，宽2.5mm（与FC/ST通用），长度约10mm（单工），双工版本集成两个独立通道（间距6.25mm）。
• material selection：
  • 套筒：塑料（低成本，插入损耗约0.5dB）或陶瓷（高精度，损耗
  • 外壳：塑料（轻便，适合室内）或金属（增强EMI防护，工业环境适用）。

2. Optical performance parameters

3. End face type and compatibility

• PC（Physical Contact）Flat end face, low cost, suitable for short distances (≤ 2km).

• UPC（Ultra Physical Contact）Spherical surface polishing, return loss improvement, suitable for medium distance (≤ 10km).

• APC（Angled Physical Contact）8 ° inclined end face, eliminating reflection interference, suitable for long-distance or CATV systems.

III. Application scenarios and advantages

1. Typical application
   • access network: Fiber optic distribution frame (ODF) termination of FTTH/FTTB network.
   • security monitoringFiber optic jump connection between camera and switch.
   • Industrial ControlFlexible deployment of signal transmission between devices.
   • Traditional data center: Legacy systems of early 1G/10G networks.
2. core advantage

   • EconomyPlastic material reduces costs and is suitable for budget-sensitive scenarios.

   • ease of useThe push-pull design requires no tools, and the installation efficiency is increased by more than 50%.

   • compatibilitySupport mainstream SC connectors, suitable for different manufacturers of equipment.