Description
Singlemode and Multimode Fiber Optics
The 845398-B21 HPE 25GB SFP28 100m LC Multimode Fiber Transceiver Module is designed to support multimode fiber optics, which is one of two types of fiber optics used in data communication systems. The other type is single-mode fiber optics. Here’s an explanation of the differences between the two types:
- Multimode fiber optics: Multimode fiber optics are designed to carry multiple modes or paths of light simultaneously. This allows them to transmit data over short distances (up to a few hundred meters) at high speeds. Multimode fibers have a larger core diameter, typically ranging from 50 to 62.5 microns, which allows for easier coupling of light into the fiber.
- Single-mode fiber optics: Single-mode fiber optics are designed to carry only one mode or path of light. This allows them to transmit data over longer distances (up to tens of kilometers) at high speeds with minimal signal distortion. Single-mode fibers have a much smaller core diameter, typically around 9 microns, which makes them more difficult to couple light into and requires more precise alignment of the optics.
The 845398-B21 HPE transceiver module is designed to support multimode fiber optics with an LC connector type. Multimode fiber optics are typically used in data communication systems within a building or campus, where distances are relatively short and high data transmission rates are required. Single-mode fiber optics, on the other hand, are typically used in long-distance data communication applications, such as telecommunications networks and submarine cables.
It’s important to note that the choice between single-mode and multimode fiber optics depends on the specific requirements of the data communication system. Factors such as distance, bandwidth, and cost will determine which type of fiber optic is most suitable for a given application.
Fiber Optic Cable Types and Connectors
The 845398-B21 HPE 25GB SFP28 100m LC Multimode Fiber Transceiver Module is designed to be used with multimode fiber optic cables, which are typically available in two core diameters: 50 microns and 62.5 microns. The core diameter is an important factor in determining the distance over which the cable can transmit data at a given speed.
There are several types of fiber optic cable constructions available, including:
- Simplex cable: This type of cable consists of a single fiber and is typically used for point-to-point communication.
- Duplex cable: This type of cable consists of two fibers, allowing for bi-directional communication.
- Ribbon cable: This type of cable consists of multiple fibers arranged in a ribbon-like configuration.
In addition to the cable type, the 845398-B21 HPE transceiver module is designed to be used with LC (Lucent Connector) connectors. The LC connector is a small, easy-to-use connector that provides reliable performance and low insertion loss. It uses a 1.25 mm ferrule, which is smaller than the 2.5 mm ferrule used in other connectors such as the SC (Subscriber Connector) or ST (Straight Tip) connectors.
LC connectors are used in a variety of applications, including high-speed data communication, telecommunication networks, and cable TV networks. They are also widely used in data centers and server rooms because of their small form factor, which allows for higher port density on networking equipment.
The 845398-B21 HPE transceiver module is designed to work with multimode fiber optic cables with LC connectors. The choice of fiber optic cable and connector type will depend on the specific requirements of the data communication system, including distance, bandwidth, and environmental conditions.
Installation and Configuration
Installing and configuring the 845398-B21 HPE 25GB SFP28 100m LC Multimode Fiber Transceiver Module involves several steps. Here’s a general overview of the process:
- Ensure compatibility: Before installing the transceiver module, make sure that it is compatible with your networking equipment, including switches, routers, and servers. Check the technical specifications of your equipment to ensure that it supports the SFP28 standard and is compatible with the module.
- Install the transceiver module: To install the module, first turn off the networking equipment and unplug it from the power source. Insert the transceiver module into the appropriate slot on the equipment. Make sure that the module is securely seated and the latch is engaged.
- Connect the fiber optic cable: Next, connect the fiber optic cable to the LC connector on the transceiver module. Make sure that the connector is properly aligned and inserted into the port.
- Power on the equipment: Once the transceiver module and fiber optic cable are installed, plug in the networking equipment and turn it on. The equipment should detect the module and configure it automatically.
- Configure the transceiver module: If necessary, you may need to configure the transceiver module manually using the command line interface (CLI) of the networking equipment. Consult the equipment’s user manual for instructions on how to do this.
- Verify connectivity: Finally, verify that the networking equipment is communicating properly over the fiber optic link. Use diagnostic tools such as ping or traceroute to verify connectivity and troubleshoot any issues.
The installation and configuration process for the 845398-B21 HPE transceiver module is relatively straightforward, but it’s important to follow the manufacturer’s instructions carefully and ensure compatibility with your equipment before proceeding.
Main Specifications about this 845398-B21
- Manufacturer: HPE
- Part Number or SKU# 845398-B21
- Type: Networking
- Transceiver Type: Transceiver Module
Media & Performance of Transceiver Module
- Ethernet Technology: 25 Gigabit Ethernet
- Form Factor: Plug-in module
- Interfaces: 1 x Ethernet 25GBase-SR – LC multi-mode x 2
- Media Type Supported Optical Fiber
- Fiber Mode Supported Multi-mode
Networking of 25 Gigabit Ethernet Module
- Connectivity Technology: Wired
- Cabling Type: 25GBase-SR
- Data Link Protocol: 25 Gigabit LAN
- Data Transfer Rate: 25 Gbps
- Max Transfer Distance: 328 FT
