How to put fiber jumpers for 10G/40G/100G optical transceivers?

- Nov 18, 2020-

There are many types of optical transceivers that can be classified according to packaging (SFP, SFP+, XFP, XENPAK), transmission distance, wavelength, and speed (10G/40G/100G optical transceivers).

When judging the type of fiber jumper, the interface type is one of the indispensable judging factors.

Optical fiber interface is a physical interface used to connect optical fiber cables, usually SC, LC, FC, ST, MPO/MTP and other types. Different optical transceivers correspond to different optical fiber interfaces. The interface of a common optical transceiver usually has two ports (one for receiving optical signals and one for transmitting optical signals), namely duplex SC or duplex LC. Therefore, such a need to use duplex SC/LC fiber jumpers.

In recent years, the newly launched BiDi optical transceiver has only one port (which can receive and transmit optical signals), so simplex fiber jumpers are required.

In addition to judging the type of fiber optic patch cords based on the interface type, it is also necessary to consider the transmission mode of fiber optic patch cords. According to the different transmission modes, fiber optic patch cords can be divided into two types: single-mode fiber patch cords and multi-mode fiber patch cords. Single-mode fiber optic patch cords use 9/125 fiber diameter fiberglass, while multimode fiber optic patch cords use OM1 62.5/125 fiber diameter or OM2 50/125 fiber diameter fiberglass.

In addition, there are also 10G OM3 and OM4 multimode fiber patch cord types. Different jumpers are suitable for different usage scenarios.

Single-mode fiber jumpers support long-distance transmission, while multi-mode fiber jumpers are generally used for short-distance links.

1.A 10G optical transceiver refers to an optical transceiver that can send and receive 10G data signals per second. According to different packages, 10G optical transceivers can be divided into XENPAK optical transceivers, X2 optical transceivers, XFP optical transceivers and SFP+ optical transceivers. The most popular one is 10G SFP+ optical transceivers. The reason why it is very popular is:

1. Strong compatibility: SFP+ optical transceiver and SFP optical transceiver have the same size, so they can be compatible with all SFP models.

2. Small size, saving space.

3. Low cost: SFP+ optical transceivers can follow a variety of specifications established by the SFP standard, so SFP+ optical transceivers have lower manufacturing costs, and SFP+ optical transceivers have low power consumption, which can save costs.

The specific matches are as follows:

SFP Transceiver

Patchcord

SFP-XG-SX-MM850

LC MM

SFP-XG-LX220-MM1310

LC MM

SFP-XG-LX-SM1310

LC SM

SFP-XG-LH40-SM1550

LC SM

SFP-XG-LH80-SM1550

LC SM

2.40G optical transceiver refers to an optical transceiver with a transmission rate of 40G, and its packaging forms are CFP and QSFP+, which are mainly used for backbone network transmission.

The specific matching is shown in the following table:

QSFP Transceiver

Patchcord

QSFP-40G-UNIV

LC SM/MM

QSFP-40G-ER4

LC SM

QSFP-40G-LR4-WDM1300

LC SM

QSFP-40G-LR4L-WDM1300

LC SM

QSFP-40G-BIDI-SR-MM850

LC MM

QSFP-40G-BIDI-WDM1310

LC SM

QSFP-40G-SR4-MM850

MPO(PC 12F) MM

QSFP-40G-CSR4-MM850

MPO(PC 12F) MM

QSFP-40G-PLR4L

MPO(APC 12F) SM

QSFP-40G-IR4-PSM1310

MPO(APC 12F) SM

QSFP-40G-LR4-PSM1310

MPO(APC 12F) SM

 The rate of 100G optical transceiver is 100G. The 100G optical transceiver types currently on the market mainly include: CXP optical transceiver, CFP optical transceiver, CFP2 optical transceiver, CFP4 optical transceiver and QSFP28 optical transceiver.


Conclusion

Optical transceivers of different wavelengths cannot be interconnected; optical transceivers of different transmission modes correspond to different jumpers.