LC to ST Fiber Optic Cable Adapter is a hybrid fiber optic adapter designed to connect LC-terminated fiber with ST-terminated fiber without re-terminating the existing cables. It uses precision alignment components to maintain stable fiber coupling, suitable for singlemode and multimode networks.
Adapter Specifications
|
Parameter |
Specification |
|
Adapter Type |
LC to ST Hybrid Adapter |
|
LC Interface |
LC female |
|
ST Interface |
ST female |
|
LC Ferrule |
1.25 mm |
|
ST Ferrule |
2.5 mm |
|
Fiber Type |
Singlemode OS2; Multimode OM1/OM2/OM3/OM4 |
|
Polish Type |
UPC; APC available for applicable configurations |
|
Alignment Sleeve |
Zirconia ceramic |
|
Insertion Loss |
≤0.3 dB typical; ≤0.5 dB max. |
|
Return Loss |
≥45 dB UPC; ≥60 dB APC |
|
Repeatability |
≤0.1 dB |
|
Mating Durability |
≥500 cycles |
|
Housing |
High-strength plastic; metal housing optional |
|
Mounting |
Panel-mount |
|
Operating Temperature |
-25°C to +70°C |
|
Configuration |
Simplex; duplex assembly available |
Connector Compatibility
The adapter provides direct mechanical coupling between lc and st connectors, making it suitable when equipment, patch panels, or installed cabling use different connector interfaces.
Lc side: Compatible with standard lc connectors using a 1.25 mm ferrule.
St side: Compatible with standard st connectors using a 2.5 mm ferrule and bayonet coupling.
Singlemode: Supports os2 9/125 μm configurations with upc or applicable apc polishing.
Multimode: Supports om1 62.5/125 μm and om2/om3/om4 50/125 μm configurations.
Connector mixing: The adapter changes the connector interface only; the connected fibers should remain matched to the required transmission mode and optical system.
Adapter Structure
The adapter consists of an LC-side interface, ST-side interface, precision alignment sleeve, housing, and mounting structure.
The zirconia ceramic sleeve maintains ferrule concentricity during mating, helping control lateral misalignment and optical insertion loss.
The standard housing is high-strength plastic for compact panel installation. Metal housing, flange type, snap-in retention, threaded mounting, and other footprint arrangements can be specified for equipment with different mechanical requirements.
Applications
Network migration: Connects new lc-based equipment to existing st-terminated fiber infrastructure without replacing the complete cable link.
Patch panels and odfs: Provides mixed lc/st connectivity in fiber distribution and patching systems.
Test equipment: Interfaces lc patch cords with st ports on optical test instruments and measurement equipment.
Telecommunication networks: Supports mixed-connector installations during network expansion or equipment replacement.
Enterprise and campus networks: Suitable for legacy st infrastructure that remains in service alongside lc-based equipment.
Industrial and instrumentation systems: Provides connector conversion where existing fiber equipment uses st interfaces.
Hybrid adapters are specifically used for mixed-connector environments and equipment migration where re-termination is undesirable.
Customization / OEM
Interface combinations: Lc-st, lc-sc, lc-fc, sc-st and other hybrid configurations.
Fiber mode: Os2, om1, om2, om3 or om4.
Polish: Upc or apc where mechanically and optically compatible.
Housing: Plastic or metal; customized color identification available.
Mounting: Flange, threaded, snap-in or customer-specified panel footprint.
Configuration: Simplex or paired duplex arrangements.
Identification: Logo, part number, connector identification and other markings.
Packaging: Bulk packing, individual bags, pre-sorted sets and private-label packaging.
Quality & Inspection
Quality control should cover both optical performance and mechanical compatibility. Each production batch can be inspected against the agreed specification, with key inspection items including:
Visual and dimensional inspection of housing and interfaces
LC/ST ferrule and sleeve alignment inspection
Insertion loss measurement
Return loss measurement for specified singlemode configurations
Connector interchangeability and mating verification
Mating durability testing
Housing and mounting structure inspection
Marking, quantity and packaging verification
Inspection records can be provided according to project requirements.
FAQ
Q: Does the adapter require any special tools for installation?
A: No special optical termination tools are normally required. The adapter is designed for mechanical connector mating and panel installation. If a customized mounting structure is supplied, installation should follow the corresponding equipment or panel design.
Q: Can the adapter be used for both indoor and outdoor fiber systems?
A: It is primarily intended for protected indoor, equipment-room, rack, patch-panel, and cabinet installations. For outdoor deployment, the adapter should be installed inside a suitable weatherproof enclosure rather than exposed directly to rain, dust, or prolonged environmental conditions.
Q: Can I order samples before a bulk purchase?
A: Yes. Samples can be supplied for connector, dimensional, mounting, and optical-performance evaluation before volume production. Sample requirements and charges can be confirmed according to the requested configuration and quantity.
Q: Can you supply adapters according to an installed-system part number?
A: A reference part number can be used for technical comparison, but production should be based on verified dimensions and performance requirements rather than the part number alone. Customers can provide samples, drawings, or datasheets for compatibility review.
Q: How are fiber optic adapters packaged for international shipment?
A: Adapters are normally protected against contamination and physical damage during handling and transportation, with inner packaging and suitable outer cartons selected according to order quantity. Individual or customized packaging can be arranged for OEM and distributor orders.
Q: What is the typical order lead time?
A: For standard commercial orders, a typical processing lead time is 7–14 days, followed by approximately 20–30 days of shipping time, depending on the destination and shipping method. Customized or large-volume orders should be scheduled separately after specification confirmation.
Q: What payment terms are available for orders?
A: Common payment methods include T/T, L/C, PayPal, and credit card. Other payment arrangements can be discussed for qualified orders, with the final terms confirmed in the quotation or sales contract.
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