MTP®/MPO loopback modules
$21.00
MTP®/MPO loopback modules are used widely within testing environment especially within parallel optics 40G networks. Devices allow verification and testing of transceivers featuring MTP® interface – 40GBASE-SR4/CSR4 QSFP+ devices. Loopbacks are built to link Transmitter (TX) and Receivers (RX) positions of MTP® transceivers interfaces. MTP® loopbacks can facilitate and speed up IL testing of optical networks segments by connecting them to MTP® trunks/patch leads.
8/12/24-Fiber MTP®/MPO loopback modules
MTP®/MPO loopback modules are used widely within testing environment especially within parallel optics 40G networks. Devices allow verification and testing of transceivers featuring MTP® interface – 40GBASE-SR4/CSR4 QSFP+ devices. Loopbacks are built to link Transmitter (TX) and Receivers (RX) positions of MTP® transceivers interfaces. MTP® loopbacks can facilitate and speed up IL testing of optical networks segments by connecting them to MTP® trunks/patch leads.
Product Details
| Fiber Type | SM/MM | Fiber connrctor | MTP®/MPO |
| Return loss | SM>50dB,MM>35dB | Insertion loss | <1.0dB |
| Insert-pull test | 50times, IL<0.5dB | Size | 80mm*10mm |
| Operation temperature | -40 to 75°C (-40 to 167°F) | HTS-Harmonized Code | 8517709000 |
Quality Certification

Product Details

MTP®/MPO loopback modules
| Standard ConnectorMTP® loopback connector adopts 8/12/24 fibers with different types of polarity. | ![]() |
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Upgrade DesignThe fiber loopback is slim and takes up less space than tranditional fiber loopback. |
| Dustproof FunctionEvery loopback module is equipped with a dust cap, which is convenient to protect it from pollution. | ![]() |
FOCC provides type 1 polarity loopback modules as default for your networks.
And please note that 8/12 fibers MTP® is for 40G QSFP+/100G QSFP28, 24 fibers is for 100G CFP/CXP.

MTP®/MPO loopback modules Structure
Collocated with 40G or 100G MPO/MTP® interface transceivers
Loopback module can be used for testing the transmission capability and receiver sensitivity of fiber optic network equipment.





Tom –
MTP/MPO loopback modules