24F MTP loopback modular

Function: Optical testing component for self-loop, port validation and IL/ORL check.
Fiber & Connector: 24 fibers; SM/MM; MTP (Male/Female, Type A, UPC/APC).
Optical Performance: Low IL (≤0.7dB), stable RL/PDL, compatible with standard wavelengths.
Mechanical: Compact PC housing, push-pull connector, ≥500 mating cycles.
Key Features: High-density, low-loss, rugged, for 100G/200G/400G testing.
Applications: Transceiver/network testing, diagnostics in data centers/telecom.

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Product Description
Specification
Product Advantage

Product Description

1. Scope

This document establishes the technical requirements, optical performance, mechanical characteristics, environmental specifications, and compliance standards for 24-Fiber (24F) MTP Loopback Modules. These modules are designed for optical system testing, port validation, continuity checks, insertion loss (IL), and optical return loss (ORL) verification in high-density data center and telecommunication networks.

2. General Description

The 24F MTP Loopback Module is a precision optical testing component that creates a closed optical circuit by internally routing the transmit (TX) channels to corresponding receive (RX) channels of a 24-fiber MTP interface. It enables self-loop testing of transceivers, network equipment, and cabling infrastructure, supporting high-speed applications including 100G, 200G, and 400G parallel optics. The module features a compact, rugged housing with a push-pull connector for easy insertion and extraction.

Specification

3. Optical Specifications

3.1 Fiber & Connector Options

• Fiber Count: 24 fibers (24F)

• Fiber Type:

￮ Singlemode (SM): 9/125 µm, OS2 (ITU-T G.652.D/G.657.A2)

￮ Multimode (MM): 50/125 µm, OM3/OM4 (laser-optimized)

• Connector Type: MTP (compatible with MPO)

￮ Gender: Male (with guide pins) / Female (without guide pins)

￮ Polarity: Type A (Key Up – Key Down, straight-through)

￮ Polish: UPC (Ultra Physical Contact) / APC (Angled Physical Contact, 8°)

3.2 Optical Performance

Parameter	Singlemode (OS2)	Multimode (OM3/OM4)	Test Method
Insertion Loss (IL)	≤ 0.7 dB (typical ≤ 0.3 dB)	≤ 0.7 dB (typical ≤ 0.3 dB)	IEC 61280-4-1
Return Loss (RL)	- UPC: ≥ 50 dB - APC: ≥ 60 dB	≥ 20 dB	IEC 61280-4-1
Polarization-Dependent Loss (PDL)	< 0.1 dB	< 0.1 dB	IEC 61280-4-1
Wavelength Range	1310 nm / 1550 nm	850 nm (OM3/OM4)	–
Channel-to-Channel Uniformity	≤ 0.3 dB	≤ 0.3 dB	–

4. Mechanical Specifications

4.1 Physical Dimensions

• Dimensions (L × W × H): 80 mm × 10 mm × 10 mm (approx.)

• Housing Material: High-strength PC (Polycarbonate) composite

• Color: Standard black (connector color indicates fiber type)

4.2 Mechanical Durability

• Mating Durability: ≥ 500 mating cycles; ΔIL ≤ 0.5 dB after 50 cycles

• Pull Strength: ≥ 100 N (axial)

• Impact Resistance: Complies with IEC 61753-1 (1.5 m drop test)

• Vibration Resistance: 10–2000 Hz, 0.75 mm amplitude, no performance degradation

5. Environmental Specifications

Parameter	Value
Operating Temperature	-40°C to +75°C (-40°F to +167°F)
Storage Temperature	-40°C to +85°C
Humidity	5–95% (non-condensing)
Thermal Stability	No optical performance shift after temperature cycling

6. Compliance & Standards

• IEC 61754-7 (MTP/MPO connector standard)

• IEC 61755 (Connector optical requirements)

• Telcordia GR-1435-CORE

• TIA-604-5 (FOCIS 5)

• RoHS & REACH compliant

• UKCA certified

7. Key Features

• High-Density Design: 24 parallel fiber channels in a compact form factor

• Low-Loss Performance: Optimized for high-speed 400G/800G testing

• Push-Pull Connector: Easy installation in high-density panels

• Stable Performance: Excellent IL/RL stability over temperature and cycles

• Versatile Polarity: Supports Type A configuration for system compatibility

• Rugged Housing: Protects internal fiber circuit from mechanical stress

8. Applications

• Port validation & continuity testing for MTP-based transceivers

• Self-loop testing of 100G/200G/400G QSFP-DD/OSFP modules

• Insertion loss (IL) & return loss (RL) measurement

• Network troubleshooting & system diagnostics

• Burn-in testing for optical components

• High-density data center & telecom infrastructure validation

9. Ordering Information (Simplified)

• Configuration: [Gender] – [Fiber Type] – [Polish]

￮ Example: Male – OS2 – APC / Female – OM4 – UPC

Product Advantage

1

High-density design with 24 parallel fiber channels in a compact form factor.
2

Low insertion loss (≤0.7dB) and stable optical performance for reliable testing.
3

Rugged PC housing protects internal fiber circuit from mechanical stress.
4

Push-pull MTP connector enables easy installation in high-density panels.
5

Excellent performance stability over temperature and mating cycles.
6

Compatible with high-speed 100G/200G/400G optical system testing.