SFP optical transceiver and PC/APC/UPC fiber jumper matching problem

Optical fiber jumper can be an indispensable connection line in optical fiber wiring. When purchasing optical fiber jumper, we will often start to see the words PC/APC/UPC, such as LC/UPC fiber jumper, FC/UPC fiber jumper, SC/APC fiber optic patch cord, ST/PC fiber optic patch cord, etc., do you know what PC/APC/UPC stands for? May be the Cisco GLC-SX-MM-RGD matched with PC/APC/UPC fiber optic jumpers?

PC/APC/UPC identifies different polishing ways of optical fiber connectors on optical fiber jumpers, and various polishing strategies determine the standard of optical fiber transmission, mainly reflected in exchange loss and insertion loss.

PC, that is, physical contact. It really is the most typical polishing way for optical fiber connectors on optical fiber jumpers. The return lack of optical fiber jumpers using PC polishing method is -40dB.

UPC means Super Physical Contact. Evolved from PC, it has better surface finish, and the return loss is normally -50dB.

APC, that's, angle physical contact. The finish face is usually ground into an 8 degree angle, that may effectively reduce reflection, and the return loss is approximately -60dB. APC can only just be connected with APC. Because the structure of APC is completely not the same as UPC, if both connectors are linked with flanges, the fiber end face of the connector will be damaged.

How to choose PC/APC/UPC fiber jumper properly for SFP optical transceiver?

SFP optical transceiver have two transmission channel ports. One port is used to send out signals and the other port is utilized to get signals. Normally, signal transmission must be realized by optical fiber jumpers. All these PC/APC/UPC three different polishing types of fiber optic patch cords. Can these three fiber patch cords be utilized with SFP optical transceiver?

The bond port of the SFP optical transceiver is flat. As the fiber end structures of the PC and UPC are flat (with hook bend) structure, it could be connected with the fiber jumper of PC and UPC; as the APC and PC and UPC The fiber end face structure is totally different, therefore the HP J4859A can not be linked with the APC fiber jumper. If the bond is forced, the connector will be damaged, leading to invalid connection or network failure.

PC and UPC fiber patch cords can be utilized on Ethernet tools such as for example fiber optic switches, and used in combination with SFP optical transceiver; APC fiber patch cords are mainly utilized for FTTx, passive optical network (PON) and wavelength division multiplexing (WDM). Usually do not utilize it with SFP optical transceiver. The precise choice depends upon your network requirements. OEMfibers communication can offer you with PC/APC/UPC fiber optic patch cords and SFP optical transceiver with three different polishing methods.

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