GRADE B PATCH CORD

T&S grade B patch cord connectoris the patchcordwith the random mating performance of Grade B as IEC-61753-1 defined, more than 97% of maximum 0.25dB random mated with each other and the average is less than 0.12dB. Simplex, duplex grade B patchcord is well fabricated and all grade B connectors (including LC, MU, SC, FC, etc.) are compliant to IEC-61754, end face geometry is superior to IEC-61755. As an experienced fiber patch cordmanufacturer, T&S provides high-quality grade B patch cord connector for years.

Grade B Patch Cord Basic Info

With the advances in fiber optic technology and transmission systems, reliable cabling systems are becoming even more important. Active optical equipment, which is often worth hundreds of thousands of dollars, is all connected to the network via the humble fiber optic patch cord or patch lead. The risk of network downtime due to unreliable cabling is one that should be avoided. Therefore, these types of networks, along with many other Data Center and high-speed Commercial networks require reliable patch cord connector infrastructure in order to maximize performance and to ensure long-term reliability.

Grade B Patch Cord Connector Features

IEC 61753-1 random mating grade B

Precision zirconia ferrules for patch cord connector

LC, MU, SC, FC, ST, all single fiber connector

Usually available on single-mode connector

Excellent geometry and end face appearance

Good repeatability and interchangeability

Flame retardant optical fiber cable

Standard Compliance of Grade B Patch Cord

Connector compliant to IEC 61754

Optical fiber cable compliant to IEC 60793

ITU G.657

Qualified to Telcordia GR-326-Core

Reach, RoHS and SvHC compliant

Grade B Patch Cord Cable Specifications

Technical Specification

Fiber Optical Cable Specification

Items	Description
Connector Type	LC/MU/SC/FC/ST/Others
Polishing Type	UPC/APC 8°/APC 9°
Insertion Loss (dB)	≤0.20
Random mating loss (dB)
Return Loss (dB)	UPC ≥ 50, APC ≥ 65
Wavelength (nm)	1310/1550
Installation Temperature (°C)	-20 to 70
Storage Temperature (°C)	-40 to +85

Optical Fiber Connector Grades of Grade B Patch Cord Connector

IEC standards dictate the patch cord connector performance for each grade of fiber-optic patch cord connector based on IEC 61753-1. As defined, there are four grades for insertion loss from A (best) to D (worst). For conventional patch cord connector, mated performance is over 0.5dB, even to 1.0dB. This may cause the whole high-speed optical connection system unreliable and transmission unstable. Therefore, the grade B patch cord connector is stable with the excellent optical performance of a maximum 0.25dB while mating each other which is a guarantee for hundreds of gigabit data exchange with connections.

Grade	Average of Random Mating	97% of Random Mating
A*	Not Defined	Not Defined
B	≤0.12 dB	≤0.25 dB
C	≤0.25 dB	≤0.50 dB
D	≤0.50 dB	≤1.0 dB

Remark: Grade A is not determined yet according IEC 61753-1

Grade B Patch Cord Cable Mechanical Data

Fiber Count	OD (mm)	Nominal
		Weight (kg/km)	Short Term	Long Term	Short Term	Long Term
Simplex 1.6			80	40	500	100
Simplex 2.0			100	60	500	100
Simplex 3.0			100	60	500	100
Duplex 1.6			80	40	500	100
Duplex 2.0			200	100	500	100
Duplex 3.0			200	100	500	100

For fiber optic patch cord typesor buy optical communications products, please contact us.

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