ST/PC Adapter SM

Name: ST/PC Adapter SM
Brand: Ever Expresslink
SKU: st-pc-adaptor-sm-184

Fiber AdapterPCSingle Mode

ST/PC Adapter SM is part of the fiber adapter range built by Ever Expresslink Limited in Ningbo, China. It is built on the ST (Straight Tip) interface.

Same-type mating sleeves that hold two ferrules on one axis

Interested in ST/PC Adapter SM

Email the model and quantity with your destination country. We reply with pricing, lead time and a datasheet.

Request A Quote Request A Sample

Product Overview

ST/PC Adapter SM is part of the fiber adapter range built by Ever Expresslink Limited in Ningbo, China. It is built on the ST (Straight Tip) interface.

We supply the ST fiber optic adapters, including the single mode and multimode types. These ST fiber adapters are simplex style, most are with zirconia sleeves, optional bronze sleeve adapters are available for multimode.

ST fiber optic adapter applications Premise installations Telecommunication networks Metro networks Local Area Networks (LANs) Data processing networks Instrumentation ST fiber optic adapter features Compact design High precision alignment Low insertion and return loss and back reflection Choice of metal or plastic housing, phosphor bronze or zirconia split sleeves

It remains common in installed multimode building backbones and in industrial or campus networks that were cabled before SC and LC took over. The bayonet pin has to clear the slot fully. A partially rotated ST looks seated but sits off the reference plane and reads high loss.

Single-mode fiber carries one propagation mode in a 9 µm core, so pulse spreading stays low and the link budget is set by loss rather than dispersion. Use it for access, metro and long-haul spans, for PON distribution and for anything that has to survive a future speed upgrade.

PC is the baseline physical-contact polish, with a lighter dome than UPC. It appears on older plant and on multimode links where return loss is not the limiting factor.

Key Benefits

Supplied as ST/PC Adapter SM, so the part you receive matches the designation you ordered against
PC end face: It appears on older plant and on multimode links where return loss is not the limiting factor.
Single Mode at 9/125 µm: Use it for access, metro and long-haul spans, for PON distribution and for anything that has to survive a future speed upgrade.
Color coding by polish type, so APC ports are visible at a glance
Simplex, duplex and quad bodies for different port densities
Precision alignment sleeve sized for the ferrule and fiber mode

Problems It Solves

Sleeve wear after repeated matings, which shows up as slowly rising loss
Panel cut-outs that do not match the adapter flange being supplied
Dust entering open ports between commissioning and service turn-up
Mixed single-mode and multimode adapters in the same field with no visual difference

Application Scenarios

Service and repair of installed plant
Populating an optical distribution frame during a build-out
Replacing worn ports found during a maintenance sweep
Building faceplates and terminal boxes on an assembly bench
Creating temporary cross-connects on a test bench

Who It Is For

Data-center cabling contractors
FTTH terminal box and closure assemblers
Maintenance teams replacing worn ports
Distributors stocking a full adapter matrix

Technical Features

ST (Straight Tip) interface
The bayonet pin has to clear the slot fully. A partially rotated ST looks seated but sits off the reference plane and reads high loss.
Single Mode fiber at 9/125 µm
Flanged, flangeless and square mounting options
Simplex, duplex and quad body formats
Dust caps on both sides as supplied
Color-coded housing by polish type

Materials

Zirconia ceramic or phosphor bronze alignment sleeve
Thermoplastic or metal housing
Stainless mounting hardware
Thermoplastic dust caps

Specifications

Product Designation	ST/PC ADAPTOR SM
Product Family	Fiber Adapter
Connector Interface	ST (Straight Tip)
End Face Polish	PC
Fiber Mode	Single Mode (9/125 µm)
Manufactured In	Ningbo, China
Warranty	One year against defects in materials and workmanship

Values shown are those carried by the product designation. Dimensional and optical values for a specific order are confirmed on the quotation.

Manufacturing Process

Sleeve inner diameter inspection on incoming parts
Housing molding or machining
Sleeve insertion and retention check
Mating force and alignment verification
Dust cap fitting and packing

Quality Control

Sleeve inner diameter sampled per lot
Insertion loss checked with reference cords on sample units
Repeated mating durability test on samples
Panel fit verified against the stated cut-out dimension
Visual check for sleeve seating and housing flash

Customization Options

Ceramic or bronze sleeve
Flanged, flangeless or square mount
Simplex, duplex or quad body
Housing color to your polish convention
Private-label bagging for distributors

Compared With Other Options

SC	SC pushes straight in; ST needs a twist but is quick once the technique is habitual
FC	Both use a 2.5 mm ferrule; FC screws down for vibration, ST trades that for speed
APC version	APC adds an eight degree angle so reflections leave the core, which matters on PON, CATV and RF-over-glass paths. It is not interchangeable with this part.
Multimode version	Multimode is cheaper to drive over short in-building distances but cannot carry the reach or the upgrade headroom of single mode.

Use Guide

Handling ST/PC Adapter SM

Before You Order

Confirm the panel cut-out before ordering flanged or flangeless
Keep dust caps on both sides until the port is commissioned
Clean both ferrules before every mating, not only the first one

In Service

Replace rather than clean a sleeve that has visible wear
Keep APC and UPC ports physically separated and color coded
Torque panel screws evenly so the body does not sit skewed

FAQ

Questions About ST/PC Adapter SM

What do you need from us to quote ST/PC Adapter SM?

The quantity, the destination and anything that has to match on your side: connector and polish at each end, fiber mode and core size, and length where the item is an assembly. If you are matching a part you already buy, send the sample and we will quote against it.

Can ST/PC Adapter SM be supplied with a different connector interface?

Yes. ST (Straight Tip) is what this designation carries, and the same family is stocked across the other mainstream connector standards. Tell us the port you have to mate with and we will confirm the equivalent part.

Is ST/PC Adapter SM available in the other fiber mode?

This item is single mode. Single-mode alignment tolerance is tight. End-face cleanliness matters more here than on any multimode link. The corresponding version in the other fiber mode is available; confirm the installed plant at both ends before ordering.

How often should adapters be replaced?

Replace when a port shows rising loss that cleaning does not fix, or when the sleeve is visibly worn. In a heavily re-patched field this is a consumable, not a permanent fixture.

Do adapters come with dust caps?

Yes, adapters are supplied with caps on both sides. Leave them in place until the port is actually patched, because an open port in a dusty building will need cleaning before first use.

More Fiber Adapter

Fiber Adapter

E2000 Adapter

We supply the E2000 fiber optic adapters, including the single mode and multimode types, there are UPC and APC adapters available.

View Details

Fiber Adapter

SMA Adapter

We supply SMA multimode fiber optic adapters, these FSMA mating adapter can be used with all standard FSMA fiber optic connectors and are suitable for panel.

View Details