Fiber interface types:
1、FC circular with thread (most used on distribution frames);
2、ST clamping type circular shape;
3、SC clamping type square shape;
4、PC microsphere surface grinding and polishing;
5、APC at an angle of 8 degrees and is micro-spherical grinding and polishing;
6、MT-RJ square type, one dual-fiber transceiver (use on Huawei 8850);
7、fiber optic modules: generally support hot swap;
8、GBIC Giga Bitrate Interface Converter, the fiber interface used is mostly SC or ST type;
9、SFP small package GBIC, the fiber used is LC type (the attachment is some jumper physical map).
Fiber Transceiver:
Example 1 Optical Transceiver

Type of optical transceiver


LC-LC interface fiber patch cord

SC-SC interface fiber patch cord

FC-SC interface fiber patch cord

ST-FC interface fiber patch cord
Fiber Transceiver Type 2:

Functions of six lights for illustration and indication:
1.POWER: Light indicates that the fiber optic transceiver is energized;
2.FX LINK/ACT: Light indicates that the fiber connector is connected. Flashing indicates that the fiber interface has data received or transmited;
3.FX100: Light indicates that the optical port of the transceiver is in the 100M (the same as 1000M);
4.FDX/COL: Light indicates that the transceiver is in full-duplex mode. No light indicates that the transceiver is in half-duplex mode. Flashing indicates that the connection is in conflict or has collision;
5.TP LINK/ACT: Light indicates that the RJ45 interface on the fiber transceiver is connected; Flashing indicates that the RJ45 on the fiber transceiver has data received or transmitted;
TP100: Light indicates that the speed of the twisted pair port is 100M; No light indicates that the speed of the twisted pair port is 10M.
6.FX-100m: optical port rate indication/100M optical port rate indication, the light is on the 100M speed; FX-LNK fiber connection status indicates that the fiber is connected when it is normal, it is off when the light is not received, and it is flashing when data is being transmitted or received.
7.Meaning of optical fiber transceiver indicator light:
8.The fiber optic transceiver has six LED indicators that show the transceiver’s operating status. According to the LED, it can be determined if the transceiver is working properly and may have problems, which can help identify the fault. Their roles are as follows:
9.PWR: Light indicates that the DC5V power supply is working normally;
10.FX 100: Light indicate that the optical fiber transmission rate is 100Mbps;
11.FX Link/Act: The long light indicates that the fiber link is connected correctly; Light flashing indicates that data is being transmitted through the optical fiber;
12.FDX: Light indicates that the fiber transmission data in full duplex mode;
Cabinet
13.TX 100: Light indicates that the twisted pair transmission rate is 100Mbps; if the light is off, the twisted pair transmission rate is 10Mbps;
14.TX Link/Act: The long light indicates that the twisted pair link is connected; the light is flashing, indicating that there is data in the twisted pair.