What Types of Fiber Optic Cable Should I Use for 10G / 40G / 100G Optical Transceivers?

An optical transceiver is an optical device that can transmit and receive signals. The electric signal is converted into an optical signal after passing through the transmitting end of the optical module, and then the optical signal is converted into an electric signal through the receiving end to realize photoelectric conversion. If they want to realize information exchange, they need to be connected. However, due to different optical module interfaces, we need to use matching fiber optic cables. However, the BiDi optical module newly introduced in recent years has only one port (both can receive and transmit optical signals), so a simplex fiber jumper is required.

Types of the 10G SFP+ Transcivers interfaces

According to different packages, 10G optical modules can be divided into XENPAK optical modules, X2 optical modules, XFP optical modules and SFP + optical modules. And the SFP+ optical modules are current more popular. The interface of common optical modules usually has two ports (one for receiving optical signals and one for transmitting optical signals), namely duplex SC or duplex LC. SFP + optical modules generally use duplex LC jumpers to connect devices.

Interface of the 40G QSFP+ Transceivers

1. QSFP-SR4-40G optical transceivers
QSFP-SR4-40G optical module is an optical module with an operating wavelength of 850nm. It uses MPO / MTP connectors. It is usually used with multimode fiber. When used with OM3 fiber jumper, its transmission distance is 100m. When used with OM4 fiber optic jumper, its transmission distance is 150m.

2. QSFP-LR4-40G optical transceivers
QSFP-LR4-40G optical module is an optical module with a working wavelength of 1310nm. It uses an LC duplex connector and is usually used with single-mode fiber. The maximum transmission distance is 10km.

3． QSFP-ER4-40G optical module
QSFP-ER4-40G optical module is an optical module with a working wavelength of 1310nm. It uses an LC duplex connector and is used together with a single-mode fiber. The maximum transmission distance is 40km.

4． QSFP-PLRL4-40G optical module
QSFP-PLRL4-40G optical module is an optical module with a working wavelength of 1310nm. It uses MPO / MTP connectors and is used together with single-mode fiber. The maximum transmission distance is 1km.

Types of the 100G QSFP28 Transcivers interfaces

1. QSFP28 SR4 optical module is usually used with MTP multimode fiber. When used with OM3 fiber, the transmission distance can be up to 70m, and with OM4 fiber, the transmission distance can be up to 100m.

2. QSFP28 LR4 optical module is usually used with LC duplex single-mode fiber, and the maximum transmission distance can reach 10km.

3. QSFP28 PSM4 optical module is usually used with MTP single-mode fiber, and the transmission distance can reach 500m.

4. QSFP28 CWDM4 optical module is usually used with LC duplex single-mode fiber, and the transmission distance can reach 2km.