Description
Understanding the GLC-EX-SMD 1GBPS SMF Optical Network Transceiver
GLC-EX-SMD, also known as 1000Base-EX, is a type of optical network technology capable of transmitting data at a rate of 1 Gigabyte per second (GBPS). It utilizes Single-Mode Fiber (SMF) for transmission, covering distances up to 40 kilometers. This technology operates at a wavelength of 1310 Nanometers (NM) and employs Full-Duplex communication, allowing simultaneous transmission and reception of data. GLC-EX-SMD utilizes LC connectors and is typically implemented using Small Form-Factor Pluggable (SFP) transceiver modules.
Exploring 1000Base-EX
1000Base-EX is a standard for Gigabit Ethernet over optical fiber. It specifies the parameters and characteristics necessary for transmitting data at a rate of 1 Gigabyte per second over long distances using Single-Mode Fiber (SMF). The “EX” designation indicates extended reach, highlighting its ability to cover distances up to 40 kilometers without signal degradation.
Overview of the Cisco GLC-EX-SMD SFP Transceiver Module
- 1 Gigabyte Per Second (GBPS) Capability: The GLC-EX-SMD operates at an impressive data transfer rate of 1 Gbps. This high speed makes it suitable for demanding networking applications, ensuring efficient and swift data communication within a network.
- 1000Base-EX Standard: The GLC-EX-SMD adheres to the 1000Base-EX standard, which is part of the IEEE 802.3ab Ethernet standard. This standard specifies the physical layer attributes for Gigabit Ethernet over optical fiber. In the case of GLC-EX-SMD, it is optimized for Single-Mode Fiber connectivity.
- Single-Mode Fiber (SMF) Technology: The GLC-EX-SMD is designed to work with Single-Mode Fiber, a type of optical fiber with a small core diameter that allows only one mode of light to propagate. This ensures that the module can transmit data over longer distances with minimal signal loss, making it ideal for deployments where long-distance communication is crucial.
- 40km Reach: One of the standout features of the GLC-EX-SMD is its impressive reach of 40 kilometers. This long-distance capability makes it suitable for applications that require data transmission over extensive network infrastructures, such as metropolitan area networks (MANs) and long-distance connections between data centers.
- 1310nm Wavelength: The GLC-EX-SMD operates at a wavelength of 1310nm. The choice of wavelength is significant as it impacts the performance and distance capabilities of the module. In this case, the 1310nm wavelength strikes a balance between signal integrity and distance, contributing to the module’s ability to transmit data over the specified 40-kilometer range.
- Duplex LC Connector: The GLC-EX-SMD is equipped with a Duplex LC Connector, a standard connector type used in fiber optic communications. The duplex configuration enables bidirectional communication by using two fibers – one for transmitting data and the other for receiving data. This connector type is widely adopted in networking environments for its reliability and efficiency.
- Small Form-Factor Pluggable (SFP) Form Factor: The GLC-EX-SMD follows the Small Form-Factor Pluggable (SFP) standard. The SFP form factor is a compact and hot-swappable design that allows for easy installation and replacement of transceiver modules in networking devices such as switches and routers. This flexibility is valuable in scenarios where scalability and adaptability are essential.
Versatility in Network Configurations
GLC-EX-SMD’s compatibility with the 1000Base-EX standard ensures seamless integration into diverse network architectures. Whether used in data centers, telecommunications networks, or enterprise setups, the module adapts to different environments, providing consistent and reliable performance.
Working Principle of GLC-EX-SMD Transceivers
GLC-EX-SMD transceiver modules operate based on the principles of optical communication. Here’s how they work:
- Optical Transmission: The transceiver module converts electrical signals from the networking device into optical signals using a laser diode. These optical signals are then transmitted through the single-mode fiber optic cable.
- Signal Reception: When receiving data, the module detects incoming optical signals using a photodetector. The photodetector converts the optical signals back into electrical signals, which are then processed by the networking device.
- Wavelength and Modulation: The module operates at a specific wavelength of 1310nm, which is optimized for transmission over single-mode fiber. Additionally, the data is modulated onto the optical carrier using techniques such as amplitude or phase modulation.
Enhanced Data Transfer Speed
With a data transfer rate of 1 Gbps, GLC-EX-SMD facilitates high-speed communication, meeting the demands of modern networking applications. The ability to transmit data at this rate ensures smooth and efficient operations, supporting bandwidth-intensive tasks and applications.
Future-Proofing Networks with GLC-EX-SMD
As networking technologies continue to evolve, the GLC-EX-SMD’s compatibility with established standards and its versatility position it as a future-proof solution. Organizations investing in this transceiver module can be confident in its ability to meet the evolving demands of network infrastructure.
Benefits of GLC-EX-SMD Transceivers
The use of GLC-EX-SMD transceiver modules offers several benefits to network operators and organizations:
High Performance
These modules support gigabit-speed data transmission over long distances, ensuring reliable and efficient communication.
Compatibility
GLC-EX-SMD modules are compatible with a wide range of networking equipment, including switches, routers, and media converters, from various vendors.
Scalability
Organizations can easily scale their network infrastructure by adding or replacing GLC-EX-SMD modules as needed, without requiring significant changes to existing hardware.
Cost-Effectiveness
Despite their high performance, GLC-EX-SMD transceivers are relatively affordable compared to other optical networking solutions, making them a cost-effective choice for organizations with budget constraints.
Reliability
These modules are built to withstand harsh environmental conditions and operate reliably in demanding network environments, ensuring continuous connectivity.
Applications of GLC-EX-SMD
The GLC-EX-SMD finds applications in various networking scenarios where high-speed, long-distance communication is crucial. Some notable applications include:
Data Center Interconnects
The module’s 40km reach and high data transfer rate make it suitable for connecting data centers that are geographically separated. This is particularly valuable in scenarios where redundancy and disaster recovery planning require reliable and fast interconnectivity.
Metropolitan Area Networks (MANs)
GLC-EX-SMD is well-suited for MANs where communication needs to span across a city or metropolitan area. Its long reach and high-speed capabilities make it an ideal choice for such networking infrastructures.
Telecommunication Networks
Telecommunication service providers can leverage the GLC-EX-SMD to extend their network reach, especially in scenarios where laying new physical cables might be impractical or cost-prohibitive. The module facilitates the expansion of high-speed communication services over existing optical fiber networks.
Enterprise Networks
In enterprise-level networks, the GLC-EX-SMD can be employed to connect buildings or offices over considerable distances, ensuring seamless and reliable communication between different locations within an organization.
General Information of the Cisco GLC-EX-SMD= SFP Transceiver Module
- Manufacturer: Cisco
- Part Number or SKU# GLC-EX-SMD=
- Product Name: 1000Base-EX SFP Module
- Product Type: Transceiver Module
Technical Information for 1000Base-EX SFP Module
- Form Factor: SFP (mini-GBIC)
- Date Rate: 1.25/1.0625Gbps
- Application/Usage: Data Networking
- Application/Usage: Optical Network
- Interfaces/Ports: 1 x 1000Base-EX
- Interfaces/Ports Details: 1 x 1000Base-EX Network
Performance of GBIC-SFP Plug-in module
- Maximum Data Transfer Rate: 1.25 GBPS
- Max Transfer Distance: 40 km (24.8 mi)
- Wavelength: 1310nm
- Fiber Operating Mode: Full-Duplex
- DDM: Yes
- Compatible Networks: 1000 Mbps (1 Gbps)
- MTBF: 3,013,496 hours
- Power Consumption (In Watts): < 1 W
Compatibility
- ASA5500 Series Appliances
- ASR 901 and 903 Series Routers
- ASR 1000, 9000, and 9000v Series Routers
- Catalyst Express 500 and Express 520
- Catalyst 2350 and 2360 Series
- Catalyst 2900, 2940, 2950, 2960, 2960-Plus, 2960-C, 2960-S, 2960-SF, 2960-X Series
- Catalyst 2970 and 2975 Series
- Catalyst 3000 and 3100 Blade Switches
- Catalyst 3500XL Series
- Catalyst 3550, 3560, 3560-C, 3560-E, 3560-X Series
- Catalyst 3750-E Series, 3750 Metro, 3750-X Series
- Catalyst 3850 Series
- Catalyst 4500 and 4500-X Series
- Catalyst 4900 Series
- Catalyst 6000 Series
- Catalyst 6800 Series
- Cisco 1941 Series Router
- Cisco 2600, 2800, 2900 Series Router
- Cisco 3200, 3600, 3700 Series Router
- Cisco 4400 Series Router
- Cisco 5700 Series Wireless LAN Controller
- Cisco 6400 Universal Access Router
- Cisco uBR7200 Series
- Cisco 7200, 7300, 7500, and 7600 Series Routers
- Cisco 10000 and uBR 10000 Series Routers
- Cisco 10700 Series Internet Router
- Cisco 12000 Series Router
- Cisco 2000 Connected Grid Router Series
- Cisco 2500 Connected Grid Switch Series
- Cisco IE2000 and IE2000U Series
- Cisco IE3010 Series
- Cisco MDS 9000
- Cisco ME 2400
- Cisco ME 2600X
- Cisco ME 3400
- Cisco ME 3600X and ME 3800X
- Cisco ME 4600 and ME 4900 Series
- Cisco ME 6500 Series
- Cisco MWR 2941 Mobile Wireless Router
- CRS Router Series
- CSS 11500 Series
- Cisco RF Gateway Series
- NAM 2200 Series Appliances
- Nexus 2000, 3000, 4000, 5000, 7000, 9000, 9300, 9500 (modular) Series
In general, the GLC-EX-SMD technology offers high-speed and reliable optical networking capabilities, making it suitable for a wide range of applications across industries. With its 1 Gigabyte per second data rate, extended reach, and compatibility with existing infrastructure, GLC-EX-SMD provides an effective solution for building robust and scalable networks to meet the demands of modern digital communication.
