1. Brand-name Optical Fibers
MTP/MPO patch cords are mostly deployed in confined spaces such as telecommunication distribution boxes and data center cabinets, where fibers are often bent. Inferior fibers are prone to excessive signal loss and even transmission interruptions under bending.
Premium brand fibers feature excellent bend resistance, which greatly reduces signal attenuation risks and simplifies on-site cabling and installation. Therefore, adopting high-quality branded fiber cores is fundamental to reliable MTP/MPO patch cords.
2. MTP/MPO Connectors Compliant with Industry Standards
A single MTP/MPO connector can accommodate 12, 16, 32 or even 72 optical fibers, delivering ultra-high cabling density and making it ideal for space-constrained data center environments.
Authorized industry-grade MTP/MPO connectors (e.g., US Conec MTP) adopt patented designs to ensure perfect physical contact between mating end faces. This effectively cuts insertion loss, boosts return loss and guarantees high-quality transmission of optical signals.
3. Insertion Loss & Return Loss
Insertion loss is a core performance metric for fiber networks — lower insertion loss means better network performance.
- For multimode MTP/MPO patch cords, the standard insertion loss is below 0.6 dB;
- For single-mode counterparts, the threshold is 0.75 dB.
High-grade products typically control insertion loss within 0.35 dB for both single-mode and multimode types. Users shall select products according to actual network requirements.
The current MTP/MPO Base 16 solution supports 800G transmission, and is upgradeable to 1.6T and 3.2T in the future, making it a mainstream MPO connector type for years to come. In AI data centers, optical connections are mostly deployed within 100 meters to minimize latency, a typical application scenario for multimode fibers.
The new SR4.2 standard extends the transmission distance to 150 meters. AI high-computing networks set stricter requirements for optical links, especially for return loss (reflective performance). Consequently, APC-style contact has been widely adopted for 16-fiber multimode MTP/MPO connectors in AI networks — a configuration previously only used in high-end telecommunication applications.
Meanwhile, stricter standards are imposed on connector cleaning. Apart from high-quality raw materials, manufacturers with rich production experience, professional high-precision testing equipment and experienced R&D teams are more reliable choices to meet sophisticated application demands.
4. Flame Retardant Rating
The outer jackets of MTP/MPO patch cords are made of different materials such as PE, PVC and LSZH, which vary greatly in fire resistance. For installations in ceilings, raised floors and other special environments, patch cords with superior flame retardant performance are highly recommended. Jackets with good fire resistance, low smoke and zero halogen properties can effectively reduce hazards caused by fire and toxic smoke.
Prior to purchase, check the flame retardant grade of the cable jacket and pick suitable products based on the actual installation environment.
5. Professional Testing for Patch Cords
(1) End-face Inspection
The IEC 61300-3-35 standard specifies acceptance criteria for connector end faces. The end face of an MTP/MPO connector is divided into four areas: fiber core, cladding, adhesive edge and ferrule surface.
The standard sets strict limits on scratches and defects across all areas. Scratches refer to permanent linear surface flaws, while defects include particles, pits, chips and other irregular blemishes. A cleaner end face indicates better product quality.
(2) 3D Interferometry for Geometric Dimension Inspection
IEC has formulated strict specifications for the geometric parameters of MTP/MPO connector end faces (IEC 61755-3-31 for single-mode fibers, IEC 63267-3-31 for multimode fibers). The geometric precision of connector end faces is decisive for stable long-term connection. It is essential to choose manufacturers whose products meet or exceed the above IEC standards.
About FDC
FDC is equipped with multiple high-performance production lines. All products undergo rigorous reliability tests and fully comply with international standards including IEC 61755-1 and IEC 61755-3-31 for MTP/MPO optical performance.
Our MPO-16, MPO-12 and other series products feature excellent interoperability with mainstream optical modules, delivering stable and high-quality optical signal transmission. For users pursuing premium quality and long-term reliability, FDC MTP/MPO patch cords are your optimal solution.
