12F MTP loopback modular

Function: Provides looped signal for testing 40G/100G optical transceivers and network segments.

Specifications: SM/MM fibers; 12/24-fiber ferrule; -40℃~+80℃ operating temp; 60mm×20mm.

Compatibility: Fits 40G QSFP+, 100G CXP/CFP transceivers (40GBASE-SR4, 100GBASE-SR4).

Features: Factory-tested MTP interface, compact rugged housing, multiple polarities.

Application: Tests MTP network components, transmitter/receiver performance in telecom/datacom.

Inquire Download

Product Description
Specification
Product Advantage

Product Description

1. Product Overview

12-Fibers MTP Fiber Loopback Module is designed to provide looped signal for testing transmit and receiving functions of optical transceivers and network segments. It is widely used in testing environments, especially for parallel optics 40G and 100G networks.

This module links Transceiver (TX) and Receiver (RX) positions of MTP interfaces, facilitating and speeding up insertion loss (IL) testing of optical network segments when connected to MTP trunks or patch leads. It supports verification and testing of MTP‑interface transceivers including 40GBASE‑SR4 QSFP+ and 100GBASE‑SR4 devices.

2. Key Features

• Supports singlemode (SM) 9/125μm, multimode (MM) 50/125μm and 62.5μm/125μm fiber types

• Available with 12‑fiber or 24‑fiber ferrule

• Female and male MTP connector options

• Multiple polarity variants available

• Compatible with 40G QSFP+ and 100G CXP/CFP transceivers

• Factory terminated and fully tested MTP interface

• Excellent optical and mechanical performance

• Compact and rugged housing for high stability and reliability

Specification

3. Technical Parameters

Item	Parameter
Fiber Type	Singlemode or Multimode
Fiber Diameter	9/125μm, 50/125μm, 62.5/125μm
Insertion Loss	MM＜1.2dB SM (G652D)＜1.5dB SM (G657A1)＜0.75dB
Return Loss	SM＞55dB; MM＞25dB
Insert‑pull Test	500 cycles, IL variation＜0.5dB
Operating Temperature	-40℃ ~ +80℃
Tensile Resistance	15kgf
Dimensions	60mm × 20mm

4. Polarity (Channel Alignment)

12‑Fiber Type 1 & Type 2 Polarity

• Fiber color sequence: 1‑Blue, 2‑Orange, 3‑Green, 4‑Brown, 5‑Grey, 6‑White, 7‑White, 8‑Grey, 9‑Brown, 10‑Green, 11‑Orange, 12‑Blue

• Channel alignment follows A‑A key‑up standard

5. Application

• Collocated with 40G or 100G MTP interface transceivers

• Used for burn‑in and functional testing of MTP network components and systems

• Verifies transmitter capability and receiver sensitivity of fiber optic equipment

• Applied in telecom and datacom testing scenarios

Product Advantage

1

Versatile fiber compatibility: Supports SM and MM fibers.
2

Flexible connectors: 12/24-fiber ferrule, female/male MTP options.
3

Broad device adaptability: Compatible with 40G QSFP+ and 100G CXP/CFP transceivers.
4

High reliability: Factory-tested MTP interface for stable performance.
5

Durable structure: Compact, rugged housing ensures stability.
6

Wide operating temperature: Works stably at -40℃~+80℃.