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Installation and Removal of QSFP+ Transceivers and DAC/AOC Cables

We should know how to install and remove the transceiver optics in a right way to keep the network working in high efficiency and stability.

In the data center network project, we must come across installing or removal fiber optical transceivers. To keep the network working in high efficiency and stability, we should know how to install and remove the transceiver optics in a right way. This article will mainly tell installation and removal of QSFP+ transceivers and DAC/AOC cables in 40G network.

About 40G QSFP+ Transceivers and DAC/AOC Cables

40 Gigabit Ethernet becomes more common in today’s data center. The equipment suitable for 40G like QSFP+ (Quad Small Form-factor Pluggable Plus), DAC (Direct Attach Copper) cables or AOCs (Active Optical Cables) are created. QSFP+ is the most common 40GbE interface type, and also as a high-density 10GbE interface via QSFP+ breakout cables. QSFP+ interfaces a network device (switch, router, media converter or similar device) to a fiber optic or copper cable, supporting data rates from 4×10 Gbps and supports Ethernet, Fibre Channel, InfiniBand and SONET/SDH standards with different data rate options. Compared with CFP (C form-factor pluggable) transceiver modules, QSFP+ transceiver modules are more compact and more suitable for port-density application. Two popular QSFP+ interface specifications for multimode and single-mode applications are 40GBASE-SR4 and 40GBASE-LR4. There are also some other types of 40G transceivers.

Installation/Removal of QSFP+ Transceivers and DAC/AOC Cables

Because QSFP+ transceivers and DAC/AOC cables are hot-pluggable, so you don’t need to power off the system when install or remove QSFP+ transceivers in your switch. But you still need to protect a QSFP+ module or cable from ESD (electro-static discharge) damage before doing these. Remember to wear an ESD wrist strap which is good skin contact and securely grounded. (If you are using ESD gloves, wear the wrist strap outside the ESD glove).

To Install a QSFP+ DAC Cable

The installation and removal procedures are the same for QSFP+ DAC cables and QSFP+ AOC cables. Here uses a QSFP+ DAC cable as an example:
>To Install a QSFP+ DAC Cable
Step 1. Align the QSFP+ transceiver module (with the clasp on top) at one end of the cable with the port in the chassis.
Step 2. Horizontally and gently push in the module to fully seat it in the port.

>To remove a QSFP+ DAC Cable
Step 1. Gently press and release the QSFP+ transceiver module.
Step 2. Holding the cable, gently pull the clasp on the cable to pull out the transceiver module.

>To remove a QSFP+ DAC Cable
Step 1. Gently press and release the QSFP+ transceiver module.
Step 2. Holding the cable, gently pull the clasp on the cable to pull out the transceiver module.

To Install/Remove a 40G QSFP+ to 4x10G SFP+ Cable

QSFP to 4xSFP+ breakout DAC40G QSFP+ to 4x10G SFP+ cable combines one 40G QSFP+ module on one end and four 10G SFP+ module on the other end. The installation and removal procedures of 40G QSFP+ connector are introduced above. Here only introduced the installation and removal of 10G SFP+ module:

>To Install an SFP+ Transceiver Module
Step 1. Align the module with the SFP+ port, with the golden plating facing the spring tab in the SFP+ port. If the chassis has two rows of ports, the spring tab in a port is on the bottom in the upper row and on the top in the lower row.
Step 2. Slightly press the module against the spring tab so you can push the module straight into the port.
>To Remove an SFP+ Transceiver Module
Step 1. Press the module with your thumb.
Step 2. Gently pull the clasp on the cable to pull out the transceiver module.

Verifying the installation

Execute the display transceiver interface command on the device to verify that the transceiver module or DAC/AOC cable is installed correctly. If the transceiver module and DAC/AOC cable information is displayed correctly, the installation is correct. If an error message displayed, it means the installation is incorrect or the transceiver optics is not compatible.

40G transceivers are widely used in data centers now. To protect the transceivers and device from damage can not only save the cost but also ensure good performance of 40G network. That’s why we need to know how to install and remove the transceivers in a right way. In addition, by executing the display transceiver interface command, we can verify whether the installation is correct. Of course, first you should note that the transceiver optics you use is fully compatible with your device. Fiberstore offers comprehensive high-compatible 40G transceiver optics, such as 40GBASE-SR4 QSFP+, 40GBASE-LR4 QSFP+ and 40G DACs and AOCs with competitive prices. Each of them is tested in original-brand switch which ensures the 100% compatibility to your device. For more information or quotationPsychology Articles, please contact us via sales@fs.com.

Source: Free Articles from ArticlesFactory.com

ABOUT THE AUTHOR


I'm a Fiber Optic Technician from Fiberstore with more than 6 years' experience in fiber optic system testing. I'm competent in using standard fiber optic preparation, splicing equipment, OTDRs and other testing equipment.



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