LC/SC/MTP/MPO Single Mode Fiber Loopback Module

Short Description:

Fiber Mode: OS1/OS2 9/125μm

Using Life: 3 Years Warranty & 30-Day Easy Return

Fiber Mode: OM1 62.51/125μm/OM2 50/125μm

Color: Grey, Aqua or customized


Lead Time: 3 days

Country of Origin: China

Product Detail

Product Tags

Product Description

Fiber loopback cables can be classified by the connector types, such as LC, SC, MTP, MPO. These fiber optic loopback plug connectors are compliant to IEC, TIA/EIA, NTT and JIS specifications.

Fiber Loopback Module 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.

MTP/MPO Loopback modules are used widely within testing environment especially within parallel optics 40/100G networks. Devices allow verification and testing of transceivers featuring MTP/MPO interface – 40GBASE-SR4 QSFP+ or 100GBASE-SR4 devices. Loopbacks are built to link Transmitter (TX) and Receivers (RX) positions of MTP/MPO transceivers interfaces. MTP/MPO loopbacks can facilitate and speed up IL testing of optical networks segments by connecting them to MTP/MPO trunks/patch leads.

Fiber Loopback Module is abosolutely an economical solution for a number of fiber optic test applications.

Product Specification

Fiber type OS1/OS2 9/125μm Fiber connector LC/SC/MTP/MPO
Return loss SM≥50dB Insertion loss SM≤0.3dB
Jacket material PVC (Yellow) Insert-pull test 500times, IL<0.5dB
Operation temperature -20 to 70°C(-4 to 158°F)

Product Features

● Used to Test Applications with Single Mode 9/125μm
● UPC Polish
● 6 Inches
● Duplex
● Ceramic Ferrules
● Low Insertion Loss for Accuracy
● Corning Fiber & YOFC Fiber
● Immune to Electrical Interference
● 100% Optically Inspected and Tested for Insertion Loss

SC/UPC Single Mode Duplex 9/125μm PVC (OFNR) Fiber Loopback Module

SC Single Mode Loopback-1
SC Single mode Loopback-2

LC/UPC Single Mode Duplex 9/125μm Fiber Loopback Module

LC Single Mode Loopback-1
LC Single Mode Loopback-2

MTP/MPO Female Singlemode 9/125 Fiber Loopback Module Type 1

MTP MPO Single Mode Loopback-1
MTP MPO Single Mode Loopback-2

LC Multimode Fiber Loopback Module

LC Multimode Fiber Loopback Module

① Dustproof Function

Every Loopback Module is equipped with two small dust caps, which is convenient to protect it from pollution.

Dustproof Function

② Internal Configuration

Equipped with a LC Loopback cable inside, it supports the test of transceivers featuring LC interface.

Internal Configuration

③ External Configuration

Equipped with a black enclosure to protect the optical cable, and the looped space is reduced for an easier usage and economic package.

External Configuration

④ Energy Saving

Complying with the RJ-45 style interface. Having a low insertion loss, low back reflection and high precision alignment.

Energy Saving

Application in Data Center

Collocated with 10G or 40G or 100G LC/UPC interface transceivers

Application in Data Center

Performance Test

Performance Test

Production Pictures

Production Pictures

Factory Pictures

Factory Real Pictures


PE bag with stick label (we could add customer's logo in the label.)


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