8 Fibers MTP OM3 Fiber Optic Loopback Module for 40/100G Network Testing

8F MTP OM3 Fiber Optic Loopback Module / Cable

The MTP loopback contains MTP fiber jumpers configured in a loopback arrangement, with both ends of the fiber terminated in an MTP connector to create an optical path within the same connector. This enables testing of device launch capacity and receiver sensitivity, particularly in 40/100G network communications. By returning signals to the source, various potential issues can be identified, allowing effective testing and evaluation of individual components or interfaces within fiber optic networks.

Optical fiber loopbacks are available in multiple configurations to accommodate 8-core, 12-core, and 24-core MTP connectors with various fiber arrangements for comprehensive port testing. The 8F MTP Fiber Loopback Module verifies and tests transceivers with MTP interfaces, specifically 40GBASE-SR4/CSR4 QSFP+ devices. The 12F version supports 40GBASE-SR4 QSFP+ or 100GBASE-SR4 devices, while the 24F version is designed for 100GBASE-SR10 CXP/CFP devices.

MTP Loopback modules provide looped signals to test transmit and receive functions, widely used in testing environments especially within parallel optics 40G and 100G networks. Loopbacks connect Transceiver (TX) and Receiver (RX) positions of MTP transceiver interfaces. These modules facilitate and accelerate insertion loss (IL) testing of optical network segments when connected to MTP trunks and patch leads.

OMC offers a comprehensive line of MTP fiber optic loopback assemblies for burn-in testing and validation of MTP network components and systems. These assemblies effectively test transmitter capability and receiver sensitivity for telecom and datacom requirements, packaged in compact housings for maximum density in high-density applications.

MTP Singlemode Reference: EIA/TIA-604-5
MTP Singlemode Housing Details:
• SM APC: Green connectors + black boot (Standard Loss MTP)
• SM APC: Yellow connectors + black boot (Super Low Loss MTP)

MTP Multimode Reference: EIA/TIA-604-5
MTP Multimode Housing Details:
• OM1 & OM2 PC: Beige connectors + black boot (Standard Loss MTP)
• OM3 & OM4 PC: Aqua connectors + black boot (Standard & Super Low Loss MTP)
• OM3 & OM4 PC: Heather Violet connectors + black boot (Standard Loss MTP)

A loopback test involves sending a signal from a communication device and looping it back to the same device to verify proper functionality or troubleshoot defective network nodes. For fiber optic loopback testing, optical loopbacks verify the operational reliability of devices. Using fiber optic loopback cables or modules for data transmission, the signal emitted by the device is looped from the transmit (Tx) port back to the receive (Rx) port of the same component.

Fiber optic loopback testing is commonly employed for checking fiber optic transceivers. Since transceivers have separate ports for receiving and transmitting light signals, testing these ports is essential for maintenance and troubleshooting. The testing process routes the laser signal from the transmitter port back to the receiver port, then compares the transmitted pattern with the received pattern to ensure they are identical and error-free.

When selecting a loopback for a transceiver, consider the connector type, polish type, and cable type. The selection guide for commonly used transceiver modules is summarized in the following tables.

This guide provides specific fiber loopback choices for commonly used fiber optic transceivers. For transceiver modules not mentioned here, suitable loopbacks can be selected by understanding their interface type, physical contact, and cable type requirements.

These fiber optic cables are packaged in easily handled, well-protected packaging with OMC labeling as standard. Available carton sizes include 34×22×15 cm, 44×34×24 cm, and 54×39×34 cm. The specific carton used depends on the quantity of goods ordered. Custom packaging options are available.

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