Features and Specifications of 2.5 Meter Copper Cable
The Cisco QDD-400-CU2.5M QSFP Passive 2.5M Copper Cable is a high-speed networking cable that is designed to connect network switches, routers, and other networking devices. It is a direct attach copper (DAC) cable that supports 40 Gigabit Ethernet (GbE) data transfer speeds, making it ideal for high-bandwidth applications such as data centers, server farms, and cloud computing environments.
Some of the key features and specifications of the Cisco QDD-400-CU2.5M QSFP Passive 2.5M Copper Cable include:
- Cable length: The cable is 2.5 meters (8.2 feet) long, which is suitable for connecting devices in close proximity.
- Connector type: The cable features QSFP connectors on both ends, which are compatible with QSFP ports on Cisco networking devices and other brands of networking equipment that support QSFP interfaces.
- Data transfer speed: The cable supports data transfer speeds of up to 40 GbE, which is sufficient for high-bandwidth applications.
- Cable type: The cable is a passive copper cable, which means that it does not require any power to operate.
- Temperature range: The cable is designed to operate in a wide temperature range, from 0°C to 70°C, which makes it suitable for use in a variety of environments.
- Compatibility: The cable is compatible with a wide range of Cisco networking devices, including Cisco Nexus switches, Cisco Catalyst switches, and Cisco ASR routers.
Working Principle of QSFP Cable
The Cisco QDD-400-CU2.5M QSFP Passive 2.5M Copper Cable is a high-speed cable designed to provide reliable connectivity between switches, routers, servers, and storage devices. It is designed to work with QSFP ports, which are commonly found in data centers and high-performance computing environments.
The cable is made up of four high-speed copper pairs, each capable of carrying data at speeds of up to 10 Gbps. These copper pairs are twisted together to minimize crosstalk and interference, which helps to ensure reliable data transmission.
The working principle of the Cisco QDD-400-CU2.5M QSFP Passive 2.5M Copper Cable is relatively simple. When connected to a QSFP port on a switch or other networking device, the cable establishes a physical link between the two devices. Data is then transmitted through the cable using a variety of protocols, depending on the specific networking application.
One key advantage of the Cisco QDD-400-CU2.5M QSFP Passive 2.5M Copper Cable is its passive design. Unlike active cables, which require power to transmit data, passive cables use no power and simply rely on the physical properties of the cable itself to transmit data. This makes the cable simpler and less expensive to manufacture, while also reducing the risk of failure due to power issues.
Benefits of Passive Copper Cable
The Cisco QDD-400-CU2.5M QSFP Passive 2.5M Copper Cable is a high-speed networking cable that provides several benefits to users. Here are some of the benefits of using this cable:
- High speed connectivity: The Cisco QDD-400-CU2.5M cable provides a high-speed connectivity solution with a data transfer rate of up to 40 Gbps. This makes it an ideal cable for high-bandwidth applications such as data centers, cloud computing, and video streaming.
- Passive design: This cable has a passive design, which means that it does not require any power source or active components. This makes it easy to install and use, and also reduces the overall power consumption of the system.
- Copper construction: The cable is made of copper, which is a highly conductive material that provides superior signal quality and reduces signal loss. Copper cables are also more affordable than optical cables, making them a cost-effective solution for high-speed connectivity.
- QSFP+ form factor: The cable is designed to support the QSFP+ form factor, which is a compact and versatile interface that can support multiple data rates and protocols. This makes the cable compatible with a wide range of devices and networking equipment.
- Length: The cable is 2.5 meters in length, which provides sufficient distance for connecting devices in close proximity to each other. Longer cables can be used with the help of compatible extender modules.
General Information about this Cisco QDD-400-CU2.5M
- Manufacturer: Cisco
- Part Number or SKU# QDD-400-CU2.5M
- Product Type: Copper Cable 2.5 Meter
About New Bulk Pack Products
Cables - Copper Cable
Coper cables still remain the most popular option in high voltage and low voltage applications such as networking. Despite the disadvantages, such as electromagnetic interference, copper still offers a cost-effective solution for many applications.
How does Copper Cable Transmit Data?
It is a simple process that starts by energizing one side of a copper wire to set electrons in it in motion. The electrons travel to the other end of the wire with the signal information. Since movement is involved, you can expect the electrons to lose their energy and eventually stop moving if the cable is very long. The loss of electron energy leads to a reduction in signal strength. When the electrons stop moving before reaching the other end of the copper wire, a total signal loss occurs. In long-distance data transmission, boosters are placed at an appropriate location to re-energize the electrons. That is usually not a problem of concern when wiring your server because of the short distance involved.
Does Length of Copper Cables Matter?
Yes, it does. As already mentioned, there is a degradation of signals as they move through the copper conductor due to losses. Copper wires have an internal resistance that will oppose the movement of current through them. Data moves through these copper cables as a stream of or pulses of current. The longer the wire, the higher the resistance and more likely signal strength deterioration. Think of it as walking uphill. The further you go, the more tired you become, and you may eventually stop moving.
When you are shopping for copper cables, just make sure you get an appropriate wire length for the application. Do not use a 10-meter cable where you can use a 5-meter cable. You make your system more efficient by using the best cable for the application.
Copper Cables for Every Application
You might have been made to believe that all copper cables are the same. That is not true. Manufacturers of these cables do so with specific applications in mind. A different approach is followed for applications where data rate and bandwidth are a priority. That is why you will find InfiniBand copper cables intended for such applications. Also, the connectors at the end of the copper wires show the intended use. You will find a big difference in the connectors used by IBM's RIO-2 copper cable and HP's X240 direct attach cable.When you are shopping for a copper cable, know what you intend to use it for. If you are not sure, consult with the sales representatives for any help. At ALLHDD, we have a technical team to help you solve any mystery in cable selection. Just contact us for the support you are entitled to get. We will help you to choose the best products and deliver them on time.
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