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Gigabit vs. 10 Gigabit Optical Transceivers: What’s the Difference?

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In a literal sense, the biggest difference between gigabit optical transceivers and 10 gigabit optical transceivers is obvious. The transmission rate of a gigabit optical module is 1,000 Mbps (1 Gbit/s), and the transmission rate of a 10 Gigabit optical module is 10,000 Mbit/s (10 Gbit/s). So other than that what are the differences between them? Follow along with us in this article to explore: Gigabit vs. 10 Gigabit Optical Transceivers

Gigabit vs. 10 Gigabit Optical Transceivers: Parameter Differences

Interface Type

In addition to GBIC optical modules, most of the interface types of gigabit optical modules are LC duplex. Similarly, most of the interface types of 10 Gigabit optical modules are LC duplex, except for one – XENPAK 10 Gigabit optical modules.

Transmission Distance

Gigabit optical modules and 10 Gigabit optical modules can generally transmit hundreds of meters on multimode fibers, and can transmit longer on single-mode fibers. The transmission distance of 10 Gigabit optical modules on single-mode optical fiber can reach 80 kilometers, and the transmission distance of Gigabit optical modules can reach more than 120 kilometers. In general, gigabit optical modules can achieve higher transmission distances with the support of certain fiber types. In practical applications, the transmission distance of 10 Gigabit optical modules can meet the requirements of most scenarios. If you don’t have too many requirements for bandwidth but need long-distance transmission, gigabit optical modules are a good choice. However, if there are requirements for efficient transmission and low latency, you must choose a 10 Gigabit optical module.

Laser Type

DFB (Distributed Feedback) and EML (Electro-Absorption Modulated Laser) are two different types of fiber lasers. DFB is suitable for short-range, low-data-rate fiber rates, and EML is suitable for long-distance, high-data-rate fiber-optic communication systems. The table below shows the different laser types used in these two modules:

Modules

Laser Types

Gigabit Optical Transceivers

DFB 1550nm、DFB BiDi、DFB 1310nm、DFB CWDM、DFB DWDM
10 Gigabit Optical Transceiver

EML 1550nm、DFB BiDi、EML CWDM、EML DWDM、DFB CWDM

DOM Functions

The DOM (Digital Optical Monitoring) function refers to the optical monitoring function, which can help administrators monitor the metrics of optical modules in real time. Gigabit optical transceivers support DOM functions except for FBIC optical transceivers. All types of 10 Gigabit optical transceivers support the DOM function.

Weight vs. Volume

Gigabit optical modules and 10 Gigabit optical modules are basically the same in terms of size. However, due to the housing material and internal components of 10 Gigabit optical modules, they are usually slightly heavier than those of Gigabit optical modules.

Power Consumption and Energy Efficiency

Gigabit optical modules have a low power consumption, usually around 1W, so they are relatively economical in terms of energy consumption. The power consumption of 10 Gigabit optical modules is usually 1-2W, and the power consumption in some special scenarios is higher, so the energy consumption will be higher. However, due to the emergence of low-power components, the energy consumption of 10 Gigabit optical modules has been reduced. Both are hot-swappable and both have a thermal design.

Gigabit vs. 10 Gigabit Optical Transceivers: Classification Differences

Both are available in a variety of transceiver types. The following table lists the common types of Gigabit optical transceivers and 10 Gigabit optical transceivers:

Module TypePackage TypeWavelengthApplication
1.25G Optical Module1000Base SFP Optical Module/GBIC Optical Module850nm/1310nm/1550nm/SFP BIDI/SFP CWDM/SFP DWDMSONET (Synchronous Optical Network for Two-channel and Bi-directional Transmission)/SDH
10G Optical Module10G SFP+ Optical Module/10G XFP Optical Module/10G X2 Optical Module/XENPAK Optical Module850nm/1310nm/1550nm/BIDI/CWDM/DWDMSONET (Synchronous Optical Fiber Network for STM-64 and OC192 Rate Standard Version)/SDH

Gigabit vs. 10 Gigabit Optical Transceivers: Compatibility Differences

Gigabit vs. 10 Gigabit Optical Transceivers Compatibility Differences

The 10 Gigabit transceivers can process the maximum rate signal of about 12 Gbit/s, so the rate signal below 12 Gigabit can be processed by the 10 Gigabit transceivers. Therefore, as long as there is a 10 Gigabit interface on the Gigabit switch, the 10 Gigabit transceivers can be used in it. On the contrary, gigabit transceivers cannot be used on 10 Gigabit switches.

How to Choose?

Gigabit modules are mainly used in Gigabit Ethernet and synchronous optical fiber networks with dual channel and bidirectional transmission. In our daily life, we use computers, printers, and servers in the process of using gigabit modules. 10 Gigabit modules are mainly used in 10 Gigabit Ethernet, STM-64 and OC192 standard synchronous fiber networks, and 10G Fibre Channel.

Summary

In summary, when selecting an optical transceiver, you should select the appropriate type according to the specific application scenarios and requirements, and pay attention to its power consumption and energy efficiency.

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