Quick Product Summary
| Product Name | ST SX Adapter |
|---|---|
| Product Category | Fiber Connectivity / Fiber Optic Adapters |
| Connector Interface | ST fiber optic connector interface |
| Body Style | Simplex adapter body, commonly described as SX |
| Mounting Type | With flange for panel, ODF, cabinet and enclosure mounting |
| Alignment Sleeve | Ceramic sleeve for precise ferrule alignment |
| Main Function | Provides a mechanical and optical coupling point for two ST fiber optic connectors |
| Typical Use | Telecom rooms, ODF panels, industrial networks, legacy equipment interconnection, FTTH access cabinets and testing points |
Product Overview
The ST SX Adapter is a passive fiber optic interconnection component used to align and mate ST connectors in optical communication systems. The simplex structure makes it suitable for single-channel fiber connection points where compact panel mounting and stable mechanical fixing are required.
Compared with a loose connector-to-connector connection, a flanged ST adapter provides a fixed interface on the panel or enclosure. This helps installers control the connector position, protect the mating point and organize fiber routing inside cabinets, ODFs and distribution boxes.
The product uses a ceramic alignment sleeve, metal RoHS-compliant body and protective dust caps. For project orders, the adapter type, sleeve type, cap color, mode compatibility and polish compatibility should be confirmed before production.
Technical Specifications
| Item | ST SX Adapter |
|---|---|
| Adapter Type | ST |
| Body Style | Simplex |
| Mounting Type | With Flange |
| Insertion Loss | ≤0.2 dB |
| Alternating Loss | ≤0.2 dB |
| Repeatability | ≤0.2 dB |
| Durability | The change after 1000 insertion/removal cycles is less than 0.2 dB |
| Alignment Sleeve Material | Ceramic |
| Housing Material | Metal, RoHS compliant |
| Compliancy Status | Compliant |
| Supported Mode / Polish Options | SM PC, SM UPC, SM APC and MM PC according to project confirmation |
| Working Temperature | -40~85°C |
| Storage Temperature | -40~85°C |
Key Features
ST Simplex Coupling
Provides a fixed simplex ST-to-ST mating interface for optical panels, rack-mounted frames, cabinets and equipment access points.
Low Insertion Loss
The listed insertion loss is ≤0.2 dB, helping reduce extra connection loss in link budgets and test point designs.
Ceramic Alignment Sleeve
The ceramic sleeve supports accurate ferrule alignment and stable optical performance during repeated connector mating.
Flanged Metal Body
The metal body with flange can be fixed into adapter panels or equipment plates to improve mechanical stability.
Repeatable Performance
Repeatability is listed as ≤0.2 dB, supporting reliable use in maintenance, testing and routine patching environments.
Dust Cap Protection
Protective caps help prevent dust contamination before installation and during storage, which is important for connector end-face cleanliness
Adapter Structure and Dimension Reference
The ST SX Adapter uses a straight-through coupling structure with a central alignment sleeve. The flange plate provides a stable mounting surface for equipment panels and distribution frames.
- Front and rear ST connector entry positions
- Central ceramic sleeve for ferrule alignment
- Flange plate with screw holes for panel fixing
- Metal adapter body for mechanical support
- Dust caps for unused or pre-installation protection
Installation Guidance
Correct installation helps maintain low insertion loss and prevents unnecessary connector damage. The adapter itself is a passive alignment component, but the final optical performance depends strongly on connector cleanliness, correct mating and stable panel mounting.
1. Confirm Port Matching
Check the connector type, fiber mode and polish compatibility before installation. Do not mix unmatched connector types or unknown end-face conditions.
2. Fix the Adapter
Insert the adapter into the panel cutout and secure the flange with screws. The adapter should not rotate or loosen after mounting.
3. Inspect and Clean
Keep dust caps on until use. Inspect and clean ST connector end faces before mating to avoid dust-related insertion loss.
4. Mate ST Connectors
Insert the ST connector straight into the adapter and lock it with the bayonet mechanism. Avoid forcing the connector at an angle.
5. Route Fiber Properly
Manage patch cords with enough bend radius and strain relief. Avoid pulling force on the connector ferrule or adapter panel.
6. Test After Patching
For project handoff, record insertion loss or optical power level after patching, especially when the adapter is used in an ODF or access node.
Application Scenarios
ST adapters are often used where existing ST-based equipment, industrial fiber links or legacy optical panels need a reliable fixed coupling point. They are also useful in test points and controlled access cabinets where the connector position must be clearly defined.
ODF and Patch Panels
Installed on optical distribution frames or fiber patch panels to create fixed ST connection ports for cross-connection and link management.
Telecom Equipment Rooms
Used in equipment racks, transmission cabinets and network rooms where ST patching is still required for installed infrastructure.
FTTH / PON Access Points
Can be used in passive access nodes or maintenance positions when the project design includes ST interface patching or testing requirements.
Industrial Fiber Networks
Suitable for industrial control, factory automation and monitoring systems using ST connector interfaces in field cabinets.
Data and Transmission Links
Supports stable simplex optical connection points in legacy data communication, CATV and transmission equipment environments.
Testing and Maintenance Points
Provides repeatable access for test jumpers and maintenance patching when the adapter is mounted securely and kept clean.
How to Select the Right ST Adapter
| Selection Point | Why It Matters | Recommended Check |
|---|---|---|
| Adapter Type | ST adapters must match ST connector interfaces. | Confirm ST interface on both sides. |
| Body Style | Simplex is used for one fiber channel per adapter. | Choose simplex or other layout according to panel design. |
| Mounting Method | Flanged adapters need suitable screw holes and panel cutouts. | Check panel thickness, cutout size and screw spacing. |
| Sleeve Material | Ceramic sleeve supports stable alignment and low-loss mating. | Confirm ceramic sleeve for optical performance-sensitive links. |
| Mode and Polish | Single-mode, multimode and polish compatibility affect link reliability. | Confirm SM/MM and PC/UPC/APC requirements before order. |
| Dust Protection | Contamination can increase insertion loss and cause unstable readings. | Keep dust caps installed until connector mating. |
Service and Project Support
Glory Optical can support ST SX Adapter orders for sample testing, panel assembly, equipment cabinet integration and batch procurement. For project-based purchases, confirm the adapter configuration together with the patch panel or enclosure design.
Configuration Support
Confirm adapter type, flange style, sleeve material, dust cap color and mode/polish compatibility before quotation.
Panel Assembly Matching
Adapters can be planned together with ODF panels, rack panels, termination boxes and project-specific fiber management layouts.
Batch Supply
Suitable for telecom projects, maintenance stock, equipment manufacturers and connectivity distributors needing consistent adapter specifications.
Information Needed for Quotation
| Required Information | Example |
|---|---|
| Product Model | ST SX Adapter |
| Quantity | Sample order / maintenance stock / project batch |
| Mode Requirement | Single-mode or multimode |
| Polish Compatibility | PC / UPC / APC according to connector requirement |
| Mounting Requirement | With flange, panel-mounted |
| Sleeve Material | Ceramic sleeve |
| Dust Cap Color | Yellow / red / black or project requirement |
| Application | ODF, patch panel, cabinet, equipment port or maintenance stock |
| Destination Country | For freight quotation and delivery planning |
FAQ
Q: What is an ST SX Adapter?
A: It is a simplex ST fiber optic adapter used to mate two ST connectors through a fixed alignment sleeve. SX here refers to the simplex body style, not a separate connector family.
Q: What is the listed insertion loss?
A: The listed insertion loss for this ST SX Adapter is ≤0.2 dB.
Q: Does this adapter use a ceramic sleeve?
A: Yes. The listed alignment sleeve material is ceramic, which supports precise ferrule alignment and stable optical connection.
Q: Can it be installed in an ODF or patch panel?
A: Yes. The adapter has a flanged mounting structure, making it suitable for ODF panels, patch panels, cabinets and equipment plates.
Q: Is it suitable for single-mode and multimode links?
A: The product specification lists SM and MM options. Confirm the exact mode and polish compatibility before placing an order.
Q: What applications commonly use ST adapters?
A: ST adapters are used in telecom equipment rooms, ODFs, patch panels, industrial fiber networks, legacy optical equipment, testing points and access cabinets.
Q: What should be checked before installation?
A: Check adapter type, panel cutout, sleeve material, connector cleanliness, fiber mode and polish compatibility. Keep dust caps on until the connectors are ready to mate.
Our Quality Promise
Comprehensive 3-Year Warranty
We confidently back all our products with a 3-year warranty. Our specific service policy is: within one year for quality issues, we take full responsibility for returns; within two years, for replacements; and within three years, for repairs.
Clear & Competitive MOQ
We welcome both trial and bulk orders. Our standard Minimum Order Quantity (MOQ) is 50 units. We also offer free samples for testing to help you evaluate our quality with confidence.
Fast & Reliable Logistics
We guarantee delivery within 10 days for standard items. Our logistics advantage includes cost-effective door-to-door service to simplify shipping for you.
Our Foundation
Backed by 18 years of experience since 2008, we control quality from our own factory, accept OEM/ODM requests, and maintain ready stock for wholesale. We focus on delivering the optimal balance of price and quality directly to end customers worldwide.
Your trust is our priority. Partner with us for dependable fiber optic solutions supported by clear promises.
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