GLC-LH-SMD

Can the GLC-LH-SMD replace the GLC-LH-SM?

Yes. It's the replacement of GLC-LH-SM.

What platforms does it support?

Almost all Cisco platforms which have SFP ports can use this GLC-LH-SMD.

What is the difference between LH and LX modules?

The 1000BASE-LX, 1000BASE-LH and 1000BASE-LX/LH all refer to Gigabit Ethernet transmission. Among them, the 1000BASE-LX is a standard specified in IEEE 802.3 Clause 38 which uses a long wavelength laser, while the 1000BASE-LH and 1000BASE-LX/LH are just terms widely used by many vendors. Long Haul (LH) denotes longer distances while Long Wavelength (LX) denotes less energy which is obviously shorter distance. The 1000BASE-LX SFP modules compatible with the IEEE 802.3z 1000BASE-LX standard can achieve a distance up to 10km over single mode fiber. Unlike 1000BASE-LX SFP modules, 1000BASE-LH SFP modules operate at a distance up to 70km over single mode fiber.

Can 1000BASE-LX be compatible with 100BASE-LX?

1000BASE-LX and 100BASE-LX are very different standards. 1000BASE-LX SFP (GLC-LH-SMD) and 100BASE-LX SFP (GLC-FE-100LX) are two module types, one for GE and one for FE slots. The GLC-LH-SMD does not operate at 100Mbps. You will need to use a 100Mb module to connect to another device at 100Mb. Check optical transceiver compatibility with your equipment by reviewing the Cisco Fast Ethernet SFP module compatibility document and choose the one it says is compatible.

Does GLC-LH-SMD work with GLC-LH-SM?

Yes. Both the GLC-LH-SM and GLC-LH-SMD transceivers support the IEEE 802.3 1000BASE-LX/LH standard and so are compatible with each other. The difference between the two is that the GLC-LH-SMD transceiver has additional support for Digital Optical Monitoring capability.

Can the GLC-LH-SMD replace the SFP-GIG-LX?

The optical modules of the same rate and the same type are theoretically compatible. But only through the specific practice test can we know whether it can be placed. Using the optical modules of the same brand with the switch is recommended.

What is GLC-LH-SMD?

The GLC-LH-SMD is a Cisco 1000BASE-LX/LH SFP transceiver module that supports both multimode and single-mode fibers. It operates at a wavelength of 1310nm and comes with Digital Optical Monitoring (DOM) capabilities.

What is the application scenario of GLC-LH-SMD?

GLC-LH-SMD is commonly used in long-distance optical communication networks, such as fiber optic links between buildings or in campus networks. It is suitable for both single-mode and multimode fiber connections.

What are the key features of GLC-LH-SMD?

GLC-LH-SMD offers a range of features including a 1310nm wavelength, support for DOM functionality, and compatibility with both single-mode and multimode fibers. It is hot-swappable and can be easily installed in compatible devices.

What are the alternatives to GLC-LH-SMD?

Some alternatives to GLC-LH-SMD include GLC-SX-MMD for short-range multimode fiber connections and GLC-EX-SMD for longer-range single-mode fiber connections. The choice depends on the specific requirements of your network.

How to install GLC-LH-SMD?

To install GLC-LH-SMD, ensure that the device is powered off, remove the protective caps from the transceiver module, align the module with the SFP slot in your device, and gently push it in until it clicks into place. Finally, power on your device.

Does GLC-LH-SMD require any firmware upgrades?

GLC-LH-SMD does not require any firmware upgrades. Simply plug it into a compatible device and it will work with the existing firmware. However, it is always a good practice to keep your device's firmware up to date.

What troubleshooting steps should I follow if GLC-LH-SMD is not working?

If GLC-LH-SMD is not working, first check if it is properly installed and firmly seated in the SFP slot. Ensure that the fiber connections are correctly aligned and securely connected. If the issue persists, try using a different GLC-LH-SMD module or consult the user manual for further troubleshooting steps.

What accessories are available for GLC-LH-SMD?

Some accessories available for GLC-LH-SMD include fiber optic patch cables, fiber optic connectors, and fiber optic cleaning kits. These accessories can aid in the installation and maintenance of GLC-LH-SMD in your network.

What are the benefits of using GLC-LH-SMD?

GLC-LH-SMD offers a cost-effective solution for long-range fiber optic connections. It provides flexibility with support for both single-mode and multimode fibers, and the DOM functionality allows for easy monitoring and troubleshooting. Its compatibility with Cisco devices ensures seamless integration into your network.

How does GLC-LH-SMD compare to other similar products?

Compared to other similar products, GLC-LH-SMD stands out due to its versatility and compatibility. It supports both single-mode and multimode fibers, making it suitable for different network configurations. The DOM functionality provides enhanced monitoring capabilities, and its performance is backed by Cisco's reputation for quality and reliability.