What Are The Differences Between 100Mbps, Gigabit And 10GbE?

The biggest difference between 100Mbps, Gigabit, and 10GbE optical modules is their transmission rate. 100Mbps and Gigabit optical modules are packaged in SFP form factor, while 10GbE optical modules are packaged in SFP+ and XFP form factors. 100Mbps modules have a transmission speed of 155Mb/s; Gigabit modules have a transmission speed of 1.25Gb/s; and 10GbE optical modules have a transmission rate of 10Gbps.

1. Definition of an Optical Module

1.1 What is a 100Mbps Optical Module?

A 100Mbps optical module is an optical module with a transmission rate of 100Mbps. It is a small, pluggable transceiver module based on the SFP Multi-Source Ability (MSA) protocol. It is an SFP optical module that connects to copper wire networks and supports the 100Base-T Ethernet standard. 100Base-T is a local area network (LAN) standard that operates at a rate of 100Mbps. It is often referred to as the Fast Ethernet standard and uses UTP (Unshielded Twisted Pair) copper cable. 100Mbps SFP optical modules are primarily used in Fast Ethernet and are compatible with the 100Mbps Ethernet and 100BASE-T Ethernet standards specified in IEEE 802.3z and 802.3ab.

1.2 What is a Gigabit Optical Module?

A Gigabit optical module is an optical module with a transmission rate of 1000Mbps. It is usually designated as GE, and generally comes in two types: Gigabit SFP and GBIC. Transmission distances can reach 80m-160km. Generally, we can identify a Gigabit optical module from the product specifications and the naming conventions used by different companies.

1.3 What is a 10 Gigabit Optical Module?

A 10 Gigabit optical module is an optical module with a transmission rate of 10G, also known as a 10G optical module. Its packaging is SFP+ or XFP. The standards for 10 Gigabit optical modules include IEEE 802.3ae, IEEE 802.3ak, and IEEE 802.3an.

2. How to differentiate between 100Mbps/Gigabit/10 Gigabit optical modules?

2.1 Packaging Classification of 100Mbps, 1Gbps, and 10Gbps Optical Modules:

Both 100Mbps and 1Gbps optical modules are packaged in SFP (Surface Mount Technology) form factors. Gigabit optical modules include six types: 1000Base SFP, BIDI SFP, CWDM SFP, DWDM SFP, SONET/SDH SFP, and GBIC.

10Gbps optical modules include nine types: 10G SFP+, BIDI SFP+, CWDM SFP+, DWDM SFP+, 10G XFP, BIDI XFP, CWDM XFP, DWDM XFP, and 10G X2.

2.2 Applications of 100Mbps, 1Gbps, and 10Gbps Optical Modules:

100Mbps optical modules are used for 100Mbps Ethernet (Fast Ethernet), 1Gbps optical modules are used for Gigabit Ethernet, dual-channel and bidirectional synchronous fiber optic networks (SONET), and 10Gbps optical modules are used for 10Gbps Ethernet, STM-64 and OC-192 standard synchronous fiber optic networks (SONET), and 10G Fibre Channel.

The choice between 100Mbps, 1Gbps, and 10Gbps optical modules depends primarily on the network type. For example, if your network is 100Mbps Ethernet, you should use a 100Mbps optical module; if it's 1Gbps Ethernet, you should use a 1Gbps optical module; and if it's 10Gbps Ethernet, you should use a 10Gbps optical module.