1. Can single-fiber and dual-fiber fiber optic transceivers be interconnected?

Single-fiber and dual-fiber fiber optic transceivers cannot be connected. Because dual-fiber transceivers transmit over two fibers, each fiber is unidirectional. The wavelength used is 1310nm; single-fiber transceivers transmit bidirectionally through a single fiber. Two wavelengths are used, 1310nm and 1550nm respectively.

2. Can single-mode optical fiber transceivers from different manufacturers be connected?

Theoretically speaking, dual-fiber should be able to be connected. Now the standards of fiber-optic transceivers are unified, and most manufacturers' single-mode dual-fiber transceivers are compatible with each other; single-fiber can also be used, but due to power and sensitivity issues, the effect of mixing and matching Not very good. It is recommended to choose products from the same manufacturer as much as possible, which is also easier to handle in terms of maintenance and after-sales.

3. Can the single-fiber optical fiber transceivers be connected to the A-side or the B-side?

Single-mode single-fiber transceivers cannot be used in pairs if they are both A-end or B-end, because single-fiber transmission is bidirectional transmission through 2 wavelengths; A-end is 1310nm wavelength transmission, 1550nm wavelength reception, B The opposite is true. When transmitting, it must be ensured that the transmission and reception are the same wavelength. So if both are A or B, the wavelengths of emission and reception are the same. There are many cases where the optical fiber transceivers cannot communicate with each other. It is recommended to choose the same manufacturer as much as possible; the same model series are paired and used, do not mix and match.