SFP-ge-t vs glc-te: : What's the difference?

"SFP-GE-T" and "GLC-TE" are both Gigabit Ethernet SFP transceivers for Cisco switches and routers. They are designed to work with copper cabling, especially Cat 5 copper cables or higher. Here are the primary differences and similarities: Similarities:
1.Type of Connectivity: Both are designed for Gigabit Ethernet connectivity over copper cabling.
2.Connector: They both use the standard RJ-45 connector.
3.Data Rate: Both support a data rate of 1000 Mbps (1 Gbps).
4.Reach/Distance: Generally, both can support distances up to 100 meters (around 328 feet) over unshielded twisted pair (UTP) cables.
5.Hot-Swappable: Both modules are hot-swappable, allowing for easy replacement without shutting down the device.
Differences:
The main difference between the two lies in their naming conventions, specific models, and sometimes in the platforms they support or the time of their release.
1.Naming Convention: The naming usually indicates that they are meant for similar applications but might have slightly different technical specifications or are optimized for different Cisco device series.
2.Release Time: Sometimes, a newer version (e.g., GLC-TE) might have been released after an older version (e.g., SFP-GE-T) with improvements or broader compatibility with newer Cisco devices.
3.Supported Devices: They might be optimized for specific Cisco switches or routers. Hence, one might be supported on a particular set of devices while the other might not be.
4.Technical Specifications: While they might have many similar features, there could be subtle differences in performance, power consumption, or other technical specs.
To understand the exact differences and to determine which one is suitable for a specific application or device, it's crucial to refer to Cisco's product datasheets, compatibility matrix, or other technical documentation.
 
 

What do sfp-ge-t and sfp-glc-te respectively represent?

 
 

What is sfp-ge-t？

The SFP-GE-T is 1000BASE-T SFP transceiver module for Category 5 copper wire, extended operating temperature range, RJ-45 connector. It is NEBS 3 ESD grade.
 
The "SFP-GE-T" is a designation for a type of Gigabit Ethernet SFP transceiver module that is designed for use with copper cabling, specifically Cat 5 copper cables, in Gigabit Ethernet networks. Here are the specifics of SFP-GE-T:
1.Interface: It uses a standard RJ-45 connector and is designed to operate over Cat 5 or higher copper cable.
2.Data Rate: It supports a data rate of 1000 Mbps (or 1 Gbps), consistent with Gigabit Ethernet standards.
3.Reach/Distance: Typically, it can support distances up to 100 meters (328 feet) over unshielded twisted pair (UTP) cables.
4.Compatibility: The module is generally hot-swappable, allowing it to be plugged or unplugged from a switch or router without needing to power down the device.
5.Application: It's primarily used in scenarios where there's a need to connect switches and routers to existing copper cabling infrastructure, especially when it's not feasible to transition to fiber-optic cabling due to cost or other logistical reasons.
6.Auto-Negotiation: Some SFP-GE-T modules support auto-negotiation, which allows them to communicate at either 10 Mbps, 100 Mbps, or 1000 Mbps, depending on the capabilities of the device they're connected to.
In general, the SFP-GE-T is a popular choice for organizations that want to achieve Gigabit speeds without the need to overhaul their existing copper cabling infrastructure.
 
 

What is SFP-glc-te?

The GLC-TE is referring to 1000BASE-T SFP extend temperature transceiver module for Category 5 copper wire, RJ-45 connector, Extended Temperature. It’s very similar with SFP-GE-T SFP module.
 
The "SFP-GLC-TE" refers to a specific type of Gigabit Ethernet SFP transceiver module designed by Cisco for use with copper cabling, especially Cat 5 copper cables or higher, in Gigabit Ethernet networks. Here's a brief overview of the SFP-GLC-TE:
1.Interface: It features a standard RJ-45 connector and is engineered to operate over Cat 5 or higher copper cables.
2.Data Rate: It supports a data rate of 1000 Mbps (or 1 Gbps), consistent with Gigabit Ethernet standards.
3.Reach/Distance: Generally, it can accommodate distances up to 100 meters (around 328 feet) over unshielded twisted pair (UTP) cables.
4.Compatibility: As with many SFP modules, the SFP-GLC-TE is hot-swappable, allowing users to plug or unplug it from a switch or router without the need to power down the device.
5.Application: The module is especially useful in scenarios where there's a need to connect switches and routers to a current copper cabling infrastructure. It's a practical solution when transitioning to fiber-optic cabling isn't feasible due to cost or other logistical reasons.
6.Auto-Negotiation: Some SFP-GLC-TE modules also support auto-negotiation, enabling them to operate at either 10 Mbps, 100 Mbps, or 1000 Mbps, based on the capabilities of the connected device.
It's always recommended to consult the specific product documentation or datasheet to understand all the features and specifications of a particular transceiver module.
 
 

Comparison: GLC-T vs SFP-GE-T vs GLC-TE, What is the similarity and difference?

Now let us make a comparison of the similarity and difference on GLC-T vs SFP-GE-T vs GLC-TE, it will help you choose right 1000BASE-T SFP module for your Gigabit Ethernet switches.

Models / Specs	Data Rate	Fiber mode	Standard	Distance	Connector	Operating Temperature	Note
GLC-T	1G	Copper	1000BASE-T	100 m	RJ45	Commercial 0~70°C
SFP-GE-T	1G	Copper	1000BASE-T	100 m	RJ45	Extended -5~85°C	NEBS 3 ESD
GLC-TE	1G	Copper	1000BASE-T	100 m	RJ45	Extended -5~85°C

 
We can learn the similarity from the above specs comparison, the similarity is all the three 1000BASE-T SFP support same data rate, same connector, and same distance, and with the same SFP form factor. The difference is the operating temperature and ESD, that is for different application.
Based on the different features, GLC-T usually target on general copper networking application and with the lowest pricing, while the SFP-GE-T and GLC-TE is for some industrial networking applcation and with b bit higher pricing.
 
 

Which One Should I Use: GLC-T vs GLC-TE vs SFP-GE-T

In terms of Cisco original GLC-T vs GLC-TE vs SFP-GE-T transceivers, GLC-T and SFP-GE-T will be End-of-Sale June 1, 2017 and replaced by the GLC-TE. So then you can only buy GLC-TE transceivers from Cisco.
 
If you’re dealing directly with a company like a telecom who specifically requires NEBS compliance, they’ll let you know and you should choose SFP-GE-T. But for most of the networks, GLC-T and GLC-TE transceivers are all you’d need for Gigabit Ethernet, and they cost less as well. Fiberstore (FS.COM) provides all these three SFP modules.
 
We are manufactured to the exact same standards as Cisco’s own brand, and come with true lifetime warranties. Every SFP module in Fiberstore was tested to ensure 100% compatibility, but only cost a small fraction of name-brand alternatives.