The interface type of the optical fiber jumper: there are square mouth and round mouth and should be the same as the port type of the photoelectric conversion product (optical fiber transceiver). Generally, single-mode fiber is used outdoors. Multimode fiber is used indoors. Singlemode is better than multimode.

1. Multi-mode, the theoretical distance is 550 meters; single-mode distance can reach 2 kilometers, 10 kilometers, 40 kilometers, 70 kilometers, etc.

2. Optical fiber transceivers, if I understand correctly, you should refer to photoelectric converters, which convert optical signals into electrical signals. The function is that the LANs on both sides are Ethernet cables, and the intermediate link medium connecting the two LANs is optical fiber. You need to convert the electrical signal into an optical signal and transmit it to the opposite end, and then the opposite end converts the optical signal into an electrical signal and sends it to the local area network of the opposite end.

3. This product can be used in pairs or individually. That is, if you cannot receive and transmit optical signals on your side, use a photoelectric converter, and if the peer device can receive and transmit optical signals, then the peer end does not need to use the device.

4. Because there are many types of optical fiber interfaces, the interface type of optical fiber jumpers needs to be considered when the equipment is interconnected.