GLC-SX-MMD vs SFP-10G-SR：What's the difference?

The main difference between GLC-SX-MMD and SFP-10G-SR is their respective data rates and supported distances.

1. GLC-SX-MMD: It is a multi-mode fiber (MMF) transceiver that supports a data rate of 1Gbps (Gigabits per second). It is commonly used for short-distance transmissions over multi-mode fiber cables (typically up to 550 meters).

2. SFP-10G-SR: It is a multi-mode fiber (MMF) transceiver that supports a data rate of 10Gbps. It is used for high-speed transmissions over multi-mode fiber cables (typically up to 300 meters). It provides a higher bandwidth compared to GLC-SX-MMD and is suitable for applications requiring faster data rates.

GLC-SX-MMD and SFP-10G-SR are both small form-factor pluggable (SFP) transceivers used in optical communication networks. They both support the same transmission speeds and have similar form factors, but there are a few key differences between them.

1. Transmission Speed

GLC-SX-MMD is a 1 Gigabit Ethernet SFP transceiver, while SFP-10G-SR is a 10 Gigabit Ethernet SFP+ transceiver. This means that SFP-10G-SR has a higher maximum transmission speed compared to GLC-SX-MMD.

2. Max Distance

Due to the different transmission speeds, GLC-SX-MMD and SFP-10G-SR have different maximum distance capabilities. GLC-SX-MMD can support transmission distances of up to 550 meters over multi-mode fiber, while SFP-10G-SR can support distances of up to 300 meters over multi-mode fiber.

3. Wavelength

GLC-SX-MMD operates at a wavelength of 850nm, while SFP-10G-SR operates at a wavelength of 1310nm. This difference in wavelength also affects the maximum transmission distance and the type of fiber that can be used with the transceivers.

4. Fiber Type

GLC-SX-MMD is designed for use with multi-mode fiber, while SFP-10G-SR can also support single-mode fiber. Single-mode fiber has a smaller core diameter and can support longer distances compared to multi-mode fiber.

5. Compatibility

GLC-SX-MMD is compatible with any device that has a 1 Gigabit Ethernet SFP slot, while SFP-10G-SR is only compatible with devices that have a 10 Gigabit Ethernet SFP+ slot.

Overall, the main differences between GLC-SX-MMD and SFP-10G-SR lie in their transmission speeds, maximum distance capabilities, and wavelength. When choosing between the two, it is important to consider the specific requirements of your network and choose the transceiver that best meets those needs. 

 

What do glc-sx-mmd and sfp-10g-sr represent respectively?

What is glc-sx-mmd?

glc-sx-mmd is a type of small form-factor pluggable (SFP) transceiver used in networking equipment to send and receive data over short distances using multi-mode fiber optic cables. It supports data transfer rates of up to 1 Gbps and has a maximum range of 550 meters. The "mmd" in the name stands for "multi-mode digital diagnostics", which means the transceiver has the ability to monitor its own performance and report back to the networking equipment for troubleshooting and maintenance purposes. 

GLC-SX-MMD is a type of transceiver module used in networking equipment. Specifically, it is a small form-factor pluggable (SFP) transceiver that supports multi-mode fiber (MMF) optic connections. GLC-SX-MMD operates at a data rate of 1Gbps (Gigabits per second) and is commonly used in switches, routers, and other network devices to provide Gigabit Ethernet connectivity. 

• Hot-swappable to maximize up-time and simplify serviceability

• Robust design for enhanced reliability

• Supports Digital Optical Monitoring (DOM) capability

What is  sfp-10g-sr?

SFP-10G-SR is a type of transceiver module used in networking equipment. It is a 10 Gigabit Ethernet small form-factor pluggable (SFP+) transceiver that supports multi-mode fiber (MMF) optic connections. SFP-10G-SR operates at a data rate of 10Gbps (Gigabits per second) and is commonly used in switches, routers, and other network devices to provide high-speed connectivity. It is designed for relatively shorter distance transmissions over multi-mode fiber cables, typically up to 300 meters. It offers a higher bandwidth and faster data rates compared to the GLC-SX-MMD transceiver module.

According to Cisco, it is 10GBASE-SR SFP+ Module supports a link length of 26m on standard Fiber Distributed Data Interface (FDDI)-grade Multimode Fiber (MMF). SFP-10G-SR is a hot-swappable input/output device which allows a 10 Gigabit Ethernet port to link with a fiber optic network. SFP-10G-SR is also used as the replacement model of compatible 10GBase-SR SFP+ Transceiver with the same function and performance supplied by many other 3rd party suppliers and stores.

SFP-10G-SR is a very common optical transceiver model, CISCO, HUAWEI and other manufacturers have production, Mainly used in switches and routers, we can separate it from three elements.
SFP, Full name is Small Form-factor Pluggables, is the upgraded version of early GBIC transceiver. Smaller than GBIC, higher degree of integration. It is the most common transceiver at present, is the transceiver we usually say.

10G represents its highest transmission rate can reach 10.3Gbps, applicable to Gigabit ethernet. 10G optical network has spread out in the telecommunications network, 10G switches are also being used by more and more people.
 

SR represents the transmission distance of optical transceiver, SR, LR, ER and ZR are more common in 10G IEEE standard. They represent the transmission distance from short to long, you can check from below table.

We need to consider compatibility and cost when select the optical transceiver.

There are many third party manufacturers produce optical transceivers compatible with CISCO SFP-10G-SR on the market, but not all compatibility is good. So when purchase optical transceivers, we must first ensure that it is compatible with the switch.

Next is the cost, many users will choose the original optical transceiver,of course is the best if under sufficient funds. ETU-Link provides SFP-10G-SR compatible module with cost-effective, good quality and reasonable price, become the choice of more and more people.

Which Patch Cable Should I Use for SFP-10G-SR?

10GBASE-SR SFP module has an LC duplex connector operating over 850nm for short reach, a multimode LC-LC fiber patch cable is the best fit. It supports a link length of 26 meters on standard multimode fiber (MMF), and the reach can be extended up to 300 m with laser-optimized OM3 MMF and to 400 m with OM4 MMF.