Posted in Switch

Cisco Catalyst Vs. Small Business Switches

Over the years, Cisco have launched its Catalyst series switches in succession, from Cisco Catalyst 1900 Series Switch to Cisco Catalyst 9500 Series Switch. And they have been widely applied in data center, high-performance computing networks, enterprise core and distribution layers, and service provider applications. Nowadays, small business enterprises account a large share among all the forms of business enterprises. It seems that it is hard to choose network switches between Cisco Catalyst and small business switches. This article would mainly introduce the Cisco Catalyst series switches and small business switches and further analyze their differences.

Introduction to Cisco Catalyst Series Switches

Cisco switches have been highly favored by Ethernet users, for they come in a variety of Ethernet-based platforms, providing everything from simple connectivity to high-end, multilayer intelligent service switching solutions. The Cisco Catalyst series switch delivers ease of management and configuration for small to medium-sized enterprise wiring closets in a single system, without the need for additional modules. These switches also provide high performance switching solutions ideal for public service providers or large private enterprises with a high volume of traffic and mid-sized networks deploying Internet business applications such as IP telephony, e-commerce, or Enterprise Resource Planning (ERP). Cisco Catalyst Switch Series are mainly listed in the following: Until now, Cisco have launched about 25 Cisco Catalyst Series Switches.

Cisco Catalyst 6500 Series Switches

Information About Small Business Switches

Small business switch, also called SMB switch, which is a kind of switch specifically manufactured for small business enterprises. But small businesses can sometimes have a tough time buying networking equipment. The problem is often the cost- that equipment can cost upwards of thousands of dollars, a budget that often isn’t at all feasible for small businesses. Thankfully, however, there are high-performing, stable, and reliable switches for the small business market that come in at under $1000 and are still suitable for small business use. The top five small business switches are Cisco SR2024CT 24 Port Gigabit Switch, Cisco SG 300-28P 28-Port Gigabit Switch, D-Link DGS-1024D 24-Port Gigabit Switch, TP-Link TL-SG1024D 24-Port Gigabit Switch, and Netgear JFS524E-100NAS 100 Megabit Switch.


Cisco Catalyst Vs. Small Business Switches

Switching and forwarding bandwidth are typically higher in the Cisco catalyst series switch. Small business switches are relatively lower in terms of bandwidth. Customers would get better support with the catalyst (smart net) than the small business ( cisco small business )


The Catalyst series switches’ value is not around performance, but rather around the software and what it brings. Since it is deployed in more diverse and more mission critical environments than any other product in the market, you can pretty much be sure that it is rock solid. It also has a lot more levers and dials to tune around QoS, security, etc.


Small business switches would give basic configuration that would be sufficient for small businesses with less details on controlling the network. On the other hand, the catalyst would provide you with more variety of options and would help you control your network better.


Relatively speaking, Cisco small business switches cost less than Cisco Catalyst series switches. One good news the SMB switch will fit the bill at 1/3 the price. Cisco has 4 models of the Small Business Switch line that will meet or beat 176, just shown as the following.

4 Modules of Cisco SMB switches


This article mainly covered the Cisco Catalyst series switches, small business switches and their differences from the aspect of bandwidth, software, configuration and costs. You can choose an appropriate one according to your actual need. For the small business switch, you can take FS a try. We offer the small business switch with best price and quality. For 1/10G poe switch, only needs $249. For more details, please visit


Posted in Switch

Why Do We Use Fiber Optic Switch?

A fiber optic switch is a device of transferring signal and data through fiber optic cables and optical modules. Compared to copper cables, the speed of data transmission is faster and more efficient. Nowadays, the fiber optic switches have been widely applied to our daily life and data center. Some extremely fine glass tubing is used to send signals for phones, computer networks, televisions and other systems. Like with many other great inventions, there are both advantages and disadvantages associated with fiber optic. This article would mainly give an explanation about the reason of using fiber optic switch from the perspective of pros and cons of fiber optic switch.


Fiber optic usage can be used in a wide range of applications to enhance service delivery. Phone systems, mechanical systems, lighting, television and computer networking have all benefited from fiber optic developments. The improved system performance is a vital factor in the overall service delivery as well as efficient and improved communications. Congestion and crowded networks are now a thing of the past with the invention of the fiber optic switch. Signals are transmitted as they occur rather than all at once.

Fiber-optic is versatile, it has been penetrated almost every walk of life, the telecommunication industry in particular. Phone systems, mechanical systems, lighting, television and computer networking have all benefited from fiber optic developments. Thanks to the fiber optic switch, the efficiency of the service delivery has been greatly enhanced. With the invention of fiber optic switch, network congestion is no longer a problem. All the signals and data can almost be transmitted and received at the same time. Moreover, the number of transmitting signals are not limited anymore.

Fiber optic cable are used for transmitting signals, which could be more clear and stronger than those transmitted via copper cabling. Signals attached great importance to create a more organized system of signal delivery. Through fiber optic installations, crashing or stalling of systems due to signal overload is eliminated.

In addition to signal delivery systems, fiber-optic also has to do with other systems such as electrical noises, radio frequencies, electromagnetic interference or alarm systems. The disruptions caused in the airwaves would not affect signal transmitting. Apart from being more efficient, the fiber switch is also much faster than the previously used copper switch. This has positively lifted the Internet bandwidth. Increased bandwidth and capacity encourages more effective data handling and transfer. Signal security is also much higher with fiber cabling than electric interfaces. This is extremely vital where sensitive and confidential transmissions are involved, such as FBI (Federal Bureau of Investigation), CIA (Central Intelligence Agency), DHS(United States Department of Homeland Security).


Every new invention has its defects, so does the fiber optic switch. Relatively speaking, the fiber optic is an emerging technology and there is still a long way to go. The expertise and resources required to install fiber cabling have not yet spread out widely. In this way, the fiber cabling really costs a lot. It is a complex project, for it covers a wide range of specialized knowledge, tools and complicate processes.

It seems that fiber optic switch is easy to make network connectivity, but it is not so easy to install it. Installation is both a time and labor-intensive undertaking albeit one that yields improved communications. Prerequisite conditions add to the rigors of installation. Prior to installing of a fiber optic cable and switches, the environment must be checked and found to be free of pollution and dust. Temperatures must not exceed 113 degrees Fahrenheit, and the area must be well-ventilated. It is a delicate process that requires extremely careful handling.

Economic Choices for Fiber Optic Switch

For optical switch, you can take FS.COM for a try, we offer network Ethernet switches with high performance and high quality. The following is our S3700-24T4S, which is deployed at the access layer of an enterprise network to deliver cost-effective packet switching capability. It provides 24*10/100/1000Base-T Ports and 4 10G SFP+ ports to extend your home or business network at gigabit speeds.

FS enterprise switches


This article mainly talked about the merits and defects of using fiber optic switch. All in all, the advantages outweigh the disadvantages. It has changed our life a lot, and we are benefit from it, especially the datacom industry. Overall, there is a prosperous future ahead for the fiber optic switch, we shall see.


Posted in Switch

Layer2 Versus Layer3 Networking Switch

Developed in 1980s, Layer 2 (L2) switches have been widely applied to high-speed data transmission in the enterprise between end stations. Layer 3 (L3) switch works as routing over IP network, which mainly functions as dealing with network traffic. This article would provide general information about layer 2 and layer 3 switches, their differences as well as guidance on making choices between those two switches.

Layer 2 and Layer 3 Networks

Information About OSI Model

If you want to figure out the layer things, you must understand what is the OSI model at first. OSI stands for Open Systems Interconnection, which is a model used to standardise the functions of telecommunication and computing systems around the world. It is a controlled hierarchy where information is passed from one layer to the next creating a blueprint for how information is passed from physical electrical impulses all the way to applications.

Basically, there are totally 7 layers in the OSI model, the “layers” refers to how you configure an IT network. Function of each layer is to provide services to the above layer, so L2 props up L3, shown as the below figure.


Layer 2 Switch

As per OSI Model, Layer 2 is Data Link Layer (DLL), which is basically divided into two sub-layers: Logic Link Control (LLC) and Media Access Control (MAC). LLC layer provides services to upper layer, and controls frame synchronization, flow control and error checking. MAC layer performs Layer 2 functions like switching, physical addressing etc. Besides, it controls how a computer on the network gains access to the data and permission to transmit it. Traditional switching operates at layer 2 of the OSI model, where packets are sent to a specific switch port based on destination MAC addresses. There are three distinct functions of layer 2 switching. The following figure shows how layer 2 switching working.

  • Address learning
  • Forward/filter decisions
  • Loop avoidance

layer 2 switching
Layer 3 Switch

With the support of switching and routing technologies, Layer 3 creating logical paths, known as virtual circuits, for transmitting data from node to node. Routing and forwarding are functions of this layer, as well as addressing, internetworking, error handling, congestion control and packet sequencing. Compared to Layer 2 switching, Layer 3 switching is a relatively new term. That has been extended by a numerous vendors to describe their products. Here is an example to illustrate it. one school uses this term to describe fast IP routing via hardware, while another school uses it to describe Multi Protocol Over ATM (MPOA). The following figure shows how layer 3 switching working.

layer 3 switching

Layer 2 Vs. Layer 3 Switching


Layer 2 Data Link: Responsible for physical addressing, error correction, and preparing the information for the media.

Layer 3 Network: Responsible for logical addressing and routing IP, ICMP, ARP, RIP, IGRP, and routers.

—Network traffic

Layer 2 networks forward all their traffic, including ARP and DHCP broadcasts. Anything transmitted by one device is forwarded to all devices. This type of broadcast traffic is very fast. When the network gets too large, the broadcast traffic begins to create congestion and decreases network efficiency.

Layer 3 traffic restricts broadcast traffic. Administrators on L3 can segment networks and restrict broadcast traffic to subnetworks, limiting the congestion of broadcast on large networks. This reduce overall traffic levels by allowing administrators to divide networks into smaller parts and restrict broadcasts to only that sub-network.

In a conclusion, there is a limit to the size of a layer 2 network. However, a properly configured layer 3 network with the correct knowledge and hardware can have infinite growth.

—Network routing

Layer 2 switch lacks router hardware, leaving them susceptible to broadcast storm and the additional administrative overhead of IP allocations due to flat subnet across multiple sites. A Layer 3 switch is a high-performance device for network routing. A router works with IP addresses at layer 3 of the model. Layer 3 networks are built to run on on layer 2 networks. But Layer 2 switches only require switching, no routing gear is necessary. Besides, they cost less and offer very low latency.

Which is Better?

This is an open question, and the answer actually depends on what is your need. Both layers of the OSI have their role in the architecture of network performance. An L2 network would be more useful broadcasting information between two computers in the same office, close together. Routing controls happen at Layer 3, and that is what most businesses need. If you are looking for some L2/L3 switches, you can take FS a try. We offer L2/L3 network switches with high performance but low costs. For details, please visit our website.


Posted in Modules, Switch

AgilePorts—An Unique Design for Connection on Arista 7150S-64 Switch

In order to meet the requirements of demanding environments such as ultra low latency financial ECNs, HPC clusters and cloud data centers, Arista launched a series of switch—Asita 7150S, including 7150S-24, 7510S-52 and 7510S-64. The Arista 7150S series represents the industry’s leading ultra low latency 1RU 1/10/40GbE layer 2/3/4 wire speed switch family. As one member of the Arista 7150S family, Arista 7150S-64 switch has both SFP+ and QSFP+ ports while the another two haven’t QSFP+ ports. This article would provide the basic information about Arista 7150S-64 switch and its network migration with Agile ports.

An overview on AgilePorts

The most distinctive feature of Arista 7150S switch is the design of AgilePorts on the switch which enables flexible deployment. AgilePorts deliver complete flexibility in connectivity—each SFP+ interface is capable of supporting 100M-10G over a variety of media, including DWDM with distances up to 80 km. The AgilePorts feature also enables groups of adjacent SFP+ ports to be configured for 40Gb operation using 10G transceivers and cables providing maximum port flexibility and a seamless migration from 10Gb to 40Gb.

Information About Arista 7150S-64

The Arista 7150S-64 has 48 SFP+ and 4 QSFP+ ports, you can see the detailed information in the below table. Different from the other two 7150S switches, 7150S-64 has the largest number port and it is the only one has QSFP+ ports. The SFP+ ports can support 1G and 10G operation and also 100Mb support with 100/1000-TX transceivers. On this 7150S-64 switch with QSFP+ ports, you can split the 40G interfaces into 4×10G. The 7150S-64 switch can provide 16×40G interfaces including 4 QSFP+ ports and 12×40G ports (48 SFP+ ports grouped into 12×40G) (see figure1).

Arista 7150S-64 Switch
Description 7150 Switch 48-Port SFP+ 4 QSFP+
Total Ports 64
SFP+ Ports 48
L2/3 Throughput 1.28 Tbps
L2/3 PPS 960 Mpps
Latency 380ns
Typical Power Draw 224 W

Table1: Information about Arista 7150S-64 Switch

7150s-64 switch

Figure1: Rear view on Arista 7150S-64 Switch

Compatible Optical Modules for Arista 7150S-64 Switch

There are many compatible 10GbE SFP+ transceivers for 7150S-64, such as 10GBASE-SR, 10GBASE-LRL, 10GBASE-CR, and so on. You can just plug these SFP+ transceivers into the SFP+ port on the switch. For the QSFP+ ports, there is a wide range of choices as well, including 40GBASE-CR4, 40GBASE-SR4, 40G-PLRL4, 40GBASE-LR4 and etc. The distances can be supported from 100 m over OM3 to 10 km over single-mode fiber on the 7150S-64 switch.

Two Different Connection Solutions

We would mainly compare the common practice of connection with connection with AgilePorts to highlight the key distinction of connection with AgilePorts.

General Connection From 10G to 40G Network

For any network migration, optical transceivers play an essential role. So does the 10G to 40G network migration—you must take 40G QSFP+ transceiver into consideration. If you use the general switches to migrate 10G to 40G network, you can take the following connection solution as a reference. Just as we see in the below picture, an MPO/MTP LGX cassette connects four 10G SFP+ links. And then a Type-B female MPO/MTP trunk cable is used to connect the cassette and 40G QSFP+ Transceiver.


Figure2: 10G to 40G solution (1)

Connection With AgilePorts on Arista 7150S-64

Like we described before, the Arista 7150S switch’s AgilePosts is designed to address device and cabling life cycles, you can upgrade from 10GbE to 40GbE only with just 10G SFP+ transceivers and cables. It provides maximum port flexibility and a seamless migration. Under this situation, 40G QSFP transceiver is unnecessary. 40G connection is achieved by connecting four 10GBASE-SR SFP+ transceivers with LC duplex fiber patch cables. In this way, time and space are saved through this kind of connection.


Figure3: 10G to 40G solution (2)


The Arista 7150S-64 is a 10/40G Ethernet switch, the distinctive design of AgilePorts on the switch plays a prominent role on the network data rate migration from 10G to 40G. If you need 40G optical transceiver for 10G to 40G migration, FS.COM is a good choice. Recently, we have a slump on 40G QSFP SR4 and 100G QSFP28 SR4, buy a 40G QSFP SR4 transceiver only needs $49 at FS.COM. If you choose to use the Arista 7150S-64 with AgilePorts to connect, we also offer large and in-stock Arista compatible 10G SFP+ transceivers. If you need any of our products, please feel free to contact us.


Posted in DAC/AOC cable, Modules, Switch

How to Connect Optics for Arista 7250QX-64 Switch

In the previous post “Compatible Optics for Arista 7250QX-64“, we are clear that the features and compatible direct attach cables and optical modules of the Arista 7250QX-64 switch. But how to make the right connection? Is there anything to notice before and in the process of installation? This article would provide a satisfying solution for you.

Connecting a QSFP+ DAC Cable to Arista 7250QX-64

The proper connectivity procedures and some installation notes are very essential for connection between DAC cable and the switch. The detailed information are just below.

The connectivity steps:

1. If the QSFP+ DAC cable connector is covered with a rubber safety cap, remove the cap. Save the cap.

2. Check the port on the switch and make sure the right connectivity. If you choose 40G QSFP+ to QSFP+ DAC cable for connectivity, please make sure that is a 40G port.

3. Insert the cable connector into the switch port.

DAC cable to switch-connection

Figure1: Connecting a DAC cable to a switch

4. Secure the cables so that they do not support their own weight. Place excess cable out of the way in a neatly coiled loop. Placing fasteners on a loop helps cables maintain their shape.

Warnings and Cautions

1. Before you begin connecting the QSFP+ DAC cables to the switch, ensure that you have taken the necessary precautions for safe handling of lasers.

2. Do not bend the QSFP+ DAC cables beyond their minimum bend radius. An arc smaller than a few inches in diameter can damage the cables and cause problems that are difficult to diagnose.

3. Do not let the DAC cables hang free from the connector.

4. Do not allow fastened loops of cables to dangle, which stress the cables at the fastening point.

Installing a QSFP+ transceiver in Arista 7250QX-64

There are many QSFP+ transceiver types supporting Arista 7250QX-64, including QSFP-40G-SR4, QSFP-40G-XSR4, QSFP-40G-PLRL4, QSFP-40G-LRL4, QSFP-40G-PLR4, QSFP-40G-LR4, and QSFP-40G-ER4. Before you begin installing one QSFP+ transceiver in an Arista 7250QX-64 switch, ensure that you have a rubber safety cap available to cover the transceiver. And to prevent electrostatic discharge (ESD) damage to the transceiver, do not touch the connector pins at the ends the transceiver. Figure 2 shows how to install a QSFP+ transceiver.

Optical transceiver-switch connection

Figure 2: installing a QSFP+ transceiver in a switch

Installation steps:

1. Remove the transceiver from its bag.

2. Check to see whether the transceiver is covered with a rubber safety cap. If it is not, cover the transceiver with a rubber safety cap.

Warning: Do not leave a QSFP+ transceiver uncovered except when inserting or removing a cable. The rubber safety cap keeps the port clean and prevents accidental exposure to laser light.

3. If the port in which you want to install the transceiver is covered with a dust cover, remove the dust cover and save it in case you need to cover the port later. If you are hot-swapping a transceiver, wait for at least 10 seconds after removing the transceiver from the port before installing a new transceiver.

4. Using both hands, carefully place the transceiver in the empty port. The connectors must face the switch chassis.

Caution: Before you slide the transceiver into the port, ensure that the transceiver us aligned correctly. Misalignment might cause the pins to bend, making the transceiver unusable.

5. Slide the transceiver in gently until it is fully seated.

6. Remove the rubber safety cap when you are ready to connect the cable to the transceiver.


From the above passage, we may observe that it is not difficult to connect QSFP+ DAC cables or QSFP+ transceiver to the Arista 7250QX-64 switch. Whether you are using DAC cables or QSFP+ transceivers to make connectivity, please remember that do not look directly into a optical transceiver or into the ends of the DAC cables, the laser light may damage your eyes. FS.COM offers large and in-stock Arista 40G QSFP+ DAC cables as well as 40G QSFP+ optical transceivers. If you need any of our products, please feel free to contact us.

Posted in DAC/AOC cable, Modules, Switch

Compatible Optics for Arista 7250QX-64

In order to meet the ever-growing need for dense 10 and 40 Gigabit Ethernet switching, Arista launches the 7250X Series switches to support a flexible combination of 10G and 40G in a compact form factor to accommodate both east-west traffic patterns and support the requirement for low latency and power efficiency in dense servers farms. Among the 7250X Series, the Arista 7250QX-64 switch has been highly favored by many Ethernet users due to its low latency, high power efficiency and high performance. The detailed information about the Arista 7250QX-64 switch and its compatible optics will be mainly covered in the following passage.

Features of Arista 7250QX-64

The Arista 7250QX-64 combines low latency, and a shared packet buffer pool of 12MB per group of ports that is allocated dynamically to ports that are congested. With 64 QSFP+ ports the 7250QX-64 is a dense 40GbE or 256 × 10GbE of wire speed performance in a 2RU system. Here are some highlights of this switch:

  • Built-in storage.
  • Resilient control plane.
  • Cloud networking ready.
  • Data center optimized design.

Arista 7250QX-64

The above figure shows Arista 7250QX-64 switch’s 64 QSFP+ ports supporting 64 × 40GbE or 256 × 10GbE.

Compatible Optics for Arista 7250QX-64 at FS.COM

The Arista 7250QX-64 supports a full rang of 10 and 40 Gigabit Ethernet connectivity options. Those 10G/40G ports support installation of SFP+ and QSFP+ modules. FS.COM provides many high-quality compatible 40G QSFP+ DAC cables and 40G QSFP+ modules for Arista 7250QX-64. You can see it clearly in the following tables.

40G QSFP+ Direct Attach Cables

Description of 40G QSFP+ DAC

From the above statement, we are clear that the Arista 7250QX-64 switch has 64 QSFP+ ports, so you can directly connect “transceivers” on the two ends of the DAC cables to the corresponding port on the switch. For transmission distance over short distance, you can choose 40G QSFP+ DAC cables to make network connectivity. By using 40G breakout cable, you can just plug the one end of 40G QSFP+ copper direct attach cable into the 40G QSFP+ ports and plug the other ends of the DAC cable into four 10G SFP+ ports. Besides, you can also connect the two ends of 40G QSFP+ DAC cable with the 40G QSFP+ ports directly to make connectivity on the Arista 7250QX-64 switch. When the transmission distance is longer, 40G QSFP+ AOC cable is a good option to transfer data. Like the 40G QSFP+ DAC cable, you can plug the two ends of 40G QSFP+ AOC cable into the QSFP+ ports on the Arista 7250QX-64 switch. Those 40G QSFP+ DAC and AOC cables are suitable for short distance and ideal for high cost-effective connectivity to your Arista 7250QX-64 switch.

40G QSFP+ Optical Transceivers

As we can see from the above figure, there are many 40G QSFP+ modules available to the Arista 7250QX-64 switch. By using 40GBASE-SR4 QSFP+ transceiver, the maximum distance can be up to 40 km via single-mode fiber on the switch. Through 40GBASE-XSR4 QSFP+ module, link lengths on 7250QX-64 switch can arrive 300 m and 400 m, respectively, on laser-optimized OM3 and OM4 multimode fibers. FS.COM offers the above 40G QSFP+ optical transceivers, which is of compatibility and performance. In addition, all of FS.COM’s optical transceiver are tested for 100% functionality and guaranteed compatible for outstanding network performance.


The Arista 7250QX-64 is designed for high availability, low latency and high power efficiency, which provides a better solution for 10G/40G Ethernet network connectivity. FS.COM offers large and in-stock Arista 40G QSFP+ DAC cables as well as 40G QSFP+ optical transceivers with low cost but high quality. Besides, our products are free shopping right now in USA, Canada and Mexico. If you need any of our products, please feel free to contact us.

Posted in DAC/AOC cable, Switch

Compatible DAC Cables for HPE 7510 Switch

In order to meet the evolving needs of integrated services networks, HPE launches a series of HPE FlexNetwork 7500 switches. They offer 40GbE connectivity and cost effective, wire-speed 10GbE ports to safeguard the throughput and bandwidth needed for mission-critical data and high-speed communications. The HPE FlexNetwork 7500 switches have three specifications: HPE FlexNetwork 7510 Switch, HPE FlexNetwork 7506 Switch and HPE FlexNetwork 7503 Switch. Among them, HPE FlexNetwork 7510 Switch is of popularity and highly favored by many Ethernet users. Today, we would mainly introduce the features of HPE 7510 switch and its compatible DAC cables.

Overview on HPE 7510 Switch

HPE 7510 Switch (JH333A) offers 10GbE and 40GbE connectivity. And it delivers wire-speed Layer 2 and Layer 3 routing services as well. HPE 7510 Switch is a 12-slot horizontal chassis of 16U, with ten I/O module slots support a maximum of 480 Gigabit Ethernet port SFP+ and two port 40GbE QSFP+ main processing units. The I/O module slots support a maximum of 480 Gigabit Ethernet ports or 480 autosensing 10/100/1000 ports or 160 × 1/10GbE ports or 80 × 10GbE posts or 40 × 40GbE ports, or a combination. Among the series of HPE FlexNetwork 7500 switches, JH333A has several distinctive features:

  • It uses an access controls list (ACL) to enforce increased bandwidth for ingress traffic on each port.
  • Industry-standard CLI with a hierarchical structure. Reduces training time and expenses; and increases productivity in multivendor installations.
  • Signature update service. It provides regular updates to the signature database, helping ensure that the latest available signatures are installed.
  • Management interface control. It provides management access through a modern port and terminal interface.

HPE 7510 Switch

This HPE FlexNetwork 7510 Switch supports a maximum of 480 PoE/PoE+ ports, 480 Gigabit Ethernet ports or 480 autosensing 10/100/1000 ports or 480 1/10GbE ports or 480 10GbE ports or 44 40GbE ports or a combination.

Compatible DAC Cables for HEP 7510 Switch

The HEP 7510 switch supports a full rang of 10 and 40 Gigabit Ethernet connectivity options. Those 10G/40G ports support installation of SFP+ and QSFP+ optical modules as well as 10G and 40G direct attach cables for HEP 7510 switch. We would mainly focus on its compatible direct attach cables in the following part.

10G SFP+ Direct Attach Cables

Description of 10G SFP+ DAC Cable

From the last paragraph, we figure out that the HEP 7510 switch has 10G SFP+ ports, so you can directly plug one end of the 10G SFP+ “transceiver” of 10G SFP+ DAC cable into the SFP+ ports on the switch. As we can see from the above table, HEP 7510 switch supports 0.65 m, 1.2 m, 3 m and 5 m long SFP+ passive DAC cables. These cables are hot-removable and hot-insertable: You can remove and replace them without powering off the switch or disrupting switch functions. The cables use high-performance integrated duplex serial data links for bidirectional communication and the maximum data rates can be up to 10Gbps on this HEP 7510 switch connecting with 10 Gigabit Ethernet port. The above HEP SFP+ DAC cables are suitable for in-rack connections between server and HEP 7510 Switch. They are suitable for short distances and ideal for high cost-effective connectivity to your HEP switch.

40G QSFP+ Direct Attach Cables

Description of 40G QSFP+ DAC Cable

The HEP 7510 switch are fixed switch built to provide 10Gbps and 40Gbps server access connectivity. From the above statement, we are clear that the HEP 7510 switch has both 10G SFP+ and 40G QSFP+ ports. Thus, you can connect the end of 40G QSFP+ “transceiver” of 40G QSFP+ DAC cable with the 40G QSFP+ ports directly to make connectivity on the HEP 7510 switch. And also, you can use 40G QSFP+ to 4SFP+ DAC cable to connect—you can just plug the one end of 40G QSFP+ “transceiver” into the 40G QSFP+ ports and plug the other four 10G SFP+ “transceivers” on the other end into the 10G SFP+ ports. The QSFP+ “transceiver” connects directly into the QSFP+ access port on the HEP 7510 Switch with a data rate of 40Gbps while the other end with 4 SFP+ “transceivers” can arrive a data rate of 10Gbps each. The cables use high-performance integrated duplex serial data links for bidirectional communication on four links simultaneously. 40G QSFP+ passive DAC cables are suitable for very short distances and provide a simple and useful way to establish a 40G link between QSFP+ ports switches within racks and acrossadjacent racks.


HPE 7510 (JH333A) switch is a high performance switch, which can be deployed in the enterprise LAN core, aggregation layer, and wiring closet edge. If you are looking for its compatible optical modules and cables, FS.COM is an optimal option as it provides large and in-stock the optical modules and direct attach cables for the HPE 7510 switch with low cost but high quality. Recently, our products are free shipping in USA, Canada and Mexico. If you need any of our products, please feel free to contact us.

Posted in Switch

Compatible Optical Modules For FS.COM S5850-48S2Q4C 100G Switch

With the development of advanced technology, 100G products is fast growing in 100G market to cater to the demand of a higher bandwidth. How about 100G switches? Recently, FS.COM launches S5850/S8050 series 100G Switches including two configurations: S5850-48S2Q4C and S8050-20Q4C, to meet the market demands. The FS.COM S5850-48S2Q4C switch is high performance and cost-effective Ethernet access and aggregation platform to enterprise, data center and metro application. This article aims at providing a detailed information about FS.COM S5850-48S2Q4C switch and its compatible optical modules.

Features of FS.COM S5850-48S2Q4C Switch

The FS.COM S5850-48S2Q4C is designed based on the fourth generation high-end scalable chipset, which supports L2/L3/Data Center/Metro features. In a compact 1 RU form factor, the switches can provide line-rate L2 and L3 switching across up to 48 SFP+ ports or 20 QSFP+ ports, and offer 2× 40GbE QSFP+ or 4×100GbE QSFP28 uplink connections.Compared to other switch products on the market, this switch have the following characteristics:

  • Data center lever hardware design.
  • Design for traffic visual and trouble-shooting.
  • Design for data center applications.
  • Focusing on supporting 40G/100G ports with large capacity and high density port.
  • Complete system software with comprehensive protocols and applications to facilitate rapid service deployment and management for both traditional L2/L3 networks and Data Center networks.

Compatible Optic Modules For S5850-48S2Q4C

The FS.COM S5850-48S2Q4C switch supports a full rang of 10, 40 and 100 Gigabit Ethernet connectivity options. Those 10G/40G/100G ports support installation of SFP+, QSFP+ and QSFP28 transceiver modules. FS.COM provides many high-quality compatible SFP+, QSFP+ and QSFP28 modules for S5850-48S2Q4C.

10G SFP+ Modules

Description of 10G Modules

Among all the 10GBASE SFP modules on the market, 10GBASE SR SFP and 10GBASE-LR are warmly welcomed by many Ethernet users right now. The maximum transmission distance of Cisco 10GBASE-SR module can be up to 300 m and 400 m respectively on this switch by using multimode fiber OM3 and OM4. The Cisco 10GBASE-LR module can arrive a link length of 10 km on standard single-mode fiber through this switch. The 10G SFP+ modules here totally conform to the specification of this S5850-48S2Q4C switch. You can select a proper one to connect.

40G QSFP+ Modules

As we can see from the above figure, there are many 40G QSFP+ modules available to this switch. By using Cisco 40GBASE-SR4 QSFP modules, link lengths on this switch can arrive 100 m and 150 m, respectively, on laser-optimized OM3 and OM4 multimode fibers. It primarily enables high-bandwidth 40G optical links over 12-fiber parallel fiber terminated with MPO/MTP multifiber female connector. All of FS.COM’s transceivers are tested for 100% functionality and guaranteed compatible for outstanding network performance. So does the above 40G transceivers, they are completely applicable to this S5850-48S2Q4C switch. Recently, there is a big slump in Cisco 40GBASE-SR4 QSFP at FS.COM. So buying Cisco 40GBASE-SR4 QSFP now is really a good deal, for it only needs $49, which can help you save a lot.

100G QSFP28 Modules

The 100G QSFP28 SR4 is highly favored by many Ethernet users to connect switch. The 100G QSFP28 SR4 offers 4 independent transmit and receive channels, each capable of 25Gb/s operation for an aggregate data rate of 100Gb/s, which can be up to 100 m on this S5850-48S2Q4C switch by using OM4 multimode fiber. It provides increased port density and total system cost savings. An optical fiber ribbon cable with an MTP/MPO connector can be plugged into the QSFP28 module receptacle. The compatibility of the above 100G QSFP28 modules are guaranteed, you can rest assured to use them for connecting with this 100G S5850-48S2Q4C switch. Just like 40GBASE-SR4 QSFP, Cisco 100G QSFP28 SR4 is on a big sale recently at FS.COM as well. A Cisco 100G QSFP28 SR4 is yours only by paying $269.


FS.COM S5850-48S2Q4C switch is high performance 100G switch, offering cost-effective solutions for nest generation metro, data center and enterprise Ethernet network applications. It supports 10G, 40G and 100G Ethernet network connectivity. If you are looking for 100G switches and its compatible optic modules, FS.COM is an optimal choice. We offer 100G switches and its compatible optic modules with low price but high quality. Buying 40G QSFP+ SR4 and 100G QSFP28 SR4 right now is really worthwhile. In addition, all of our products are free shipping right now in USA, Canada and Mexico. If you need any of our products, please feel free to contact us.