Apc fiber ends have low back reflection even when disconnected.
Apc fiber connector color.
However the advent of metallic connectors like the fc and st made connector color coding difficult so colored strain relief boots were often used.
They have a slight curvature for better core alignment.
Giving each one a specific color allows better and faster recognition of the cable in use and avoids issues due to bad connections or confusions.
To put it simply pc upc and apc refer to the polish styles of the ferrules inside the fiber optic connectors just as the following figure shows the ferrule is the housing for the exposed end of a fiber designed to be connected to another fiber or into a transmitter or receiver.
Lc apc single mode 9 125um fiber optic connector in green color lc upc single mode 9 125um fiber optic connector in blue color.
Upc connectors are polished with no angle.
Apc connectors feature a fiber endface that is polished at an eight degree angle.
As you can see in the.
Upc connectors are easily identified by their blue color on the connector boot.
The following figure picture shows the differences mentioned above intuitively.
Lc upc multi mode 62 5 125um or 50 125um fiber optic connector in gray color.
Lc upc multi mode om3 om4 fiber optic connector in aqua color.
However significant insertion loss can result when mating to different styles and because of this we recommend that fc apc connectors be mated only with other fc apc connectors.
Fiber optic lc connector with apc upc polishing type.
These connectors also feature a low 0 25 db connector to connector typical loss.
Sc apc connector is commonly used in applications that are much more sensitive to return loss and requires for high precision signal such as fttx fiber to the x video delivery through rf signal wdm wavelength division multiplexing applications and analogue equipment like cctv.
Another more obvious difference is color.
An apc connector has an 8ยบ angle cut into the ferrule.
Fiber optics color standards.
The major physical difference between apc and upc connector is the endface geometry.
The generally accepted color code for connector bodies and or boots is beige for multimode fiber blue for single mode fiber and green for apc connectors.
Fiber optic cables are available in a wide range that varies according to use length diameter etc.
Introduction to different connector types.
Upc connectors are blue while apc connectors are green.
Cable jacket colors make it faster and simpler to pinpoint which.
These connectors are identifiable by their green color.
Each connector package includes a fiber connector cap and plastic boot.
An apc polished connector has an industry standard minimum f 60db orl measurement.
Since the earliest days of fiber optics orange black or gray was multimode and yellow singlemode.
Besides the fiber end face another more obvious difference is the color.
