---
product_id: 445782806
title: "LC/UPC Duplex SM(9/125) Fibre Optic Loopback Module Connector Tester Adapter"
brand: "jeirdus"
price: "818927₫"
currency: VND
in_stock: true
url: https://www.desertcart.vn/products/445782806-lc-upc-duplex-sm-9-125-fibre-optic-loopback-module
store_origin: VN
region: Vietnam
---

# ≤0.20 dB insertion loss 45~60 dB return loss ≤0.10 dB repeatability LC/UPC Duplex SM(9/125) Fibre Optic Loopback Module Connector Tester Adapter

**Brand:** jeirdus
**Price:** 818927₫
**Availability:** ✅ In Stock

## Summary

> 🔌 Plug into precision — test smarter, troubleshoot faster!

## Quick Answers

- **What is this?** LC/UPC Duplex SM(9/125) Fibre Optic Loopback Module Connector Tester Adapter by jeirdus
- **How much does it cost?** 818927₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/445782806-lc-upc-duplex-sm-9-125-fibre-optic-loopback-module)

## Best For

- jeirdus enthusiasts

## Why This Product

- Trusted jeirdus brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Consistent Performance:** Repeatability within 0.10 dB guarantees reliable, repeat tests every time.
- • **Durable Ceramic Sleeve:** Robust ceramic connection sleeve enhances longevity and stable fiber alignment.
- • **Superior Noise Isolation:** High return loss (45~60 dB) minimizes signal reflection for accurate diagnostics.
- • **Effortless Duplex Handling:** Duplex clips securely hold connectors for quick, hassle-free insertion and removal.
- • **Precision Signal Integrity:** Ultra-low insertion loss (≤0.20 dB) ensures crystal-clear loopback testing.

## Overview

The Jeirdus LC/UPC Duplex SM (9/125) Fiber Optic Loopback Module is engineered for high-accuracy fiber optic testing and network troubleshooting. Featuring ultra-low insertion loss, exceptional return loss, and repeatability, it ensures reliable signal return for diagnosing network issues. Its durable ceramic sleeve and duplex clip design provide ease of use and long-lasting performance, making it an essential tool for professionals demanding flawless fiber optic diagnostics.

## Description

Fiber Loop back is designed to provide a media of return patch for a fiber optic signal; typically it is used for fiber optic testing applications or network restorations. For the testing applications, the loopback signal is used for diagnosing a problem. Sending a loopback test to network equipment, one at a time, is a technique for isolating a problem.

## Features

- LC/UPC Duplex (9/125) Fiber Optic Loopback
- Insertion loss ¡Ü 0.20 dB,Return loss 45~60 dB,Repeatability ¡Ü 0.10 dB,Changeability ¡Ü 0.20 dB,This adapters uses ceramic sleeve to connect between two SC fiber Optic cables.
- Fiber Optic Loopback Cables provide a return signal for fiber optic equipment which can be using for tesing purposes and isolating any network issues
- 100% Functionally d before shipping,Ease and accuracy of insertion as duplex clips hold connectors togethe

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07DG3PLP1 |
| Best Sellers Rank | #71,974 in Electronics ( See Top 100 in Electronics ) #155 in Fiber Optic Cables |
| Brand Name | Jeirdus |
| Cable Type | Fiber Optic |
| Color | LC-OS1 |
| Compatible Devices | Surveillance Camera |
| Compatible Phone Models | No Compatible Phone Models |
| Connector Gender | Male-to-Female |
| Connector Type | Lc/Pc-lc/Pc |
| Customer Reviews | 4.6 4.6 out of 5 stars (46) |
| Data Transfer Rate | 100 Gigabits Per Second |
| Indoor Outdoor Usage | Indoor |
| Item Shape | Round |
| Item Weight | 10 Grams |
| Manufacturer | Jeirdus |
| Model | FBM-HLQ-SLC |
| Model Name | FBM-HLQ |
| Number of Pins | 4 |
| Other Special Features of the Product | Data Transfer |
| Part Number | FBM-HLQ-SLC |
| Recommended Uses For Product | fiber optic testing and network troubleshooting |
| UPC | 669591920557 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Jeirdus
- **Cable type:** Fiber Optic
- **Compatible devices:** Surveillance Camera
- **Connector type:** Lc/Pc-lc/Pc
- **Special features:** Data Transfer

## Images

![LC/UPC Duplex SM(9/125) Fibre Optic Loopback Module Connector Tester Adapter - Image 1](https://m.media-amazon.com/images/I/31soVP4QDAL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Frequently Bought Together

- Jeirdus LC/UPC Fiber Optic Loopback Duplex SM 9/125 Module Connector Tester Adapter
- LC/UPC Fiber Optic Circuitors Connector SM & MM Fiber Optic Loopback Adapter LC Interface Signal Loop Connector (LC/UPC SM-9/125)
- Visual Fault Locator 30KM, VFL Fiber Optic Tester Kit - Include Single Mode 9/125um FC Male to LC Female Adapter, Light Pen for Fiber Network Cable Test

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**Shop now:** [https://www.desertcart.vn/products/445782806-lc-upc-duplex-sm-9-125-fibre-optic-loopback-module](https://www.desertcart.vn/products/445782806-lc-upc-duplex-sm-9-125-fibre-optic-loopback-module)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-09-25*