As the saying goes, "you get what you pay", in order to get value things, shop around is absolutely the only way for quality buyers! How to play the power of fire eye in the purchase of optical module? Today, let's share the essence of it!

The basic structure of optical module includes the following parts: optical device + main chip +PCB+ resistance/capacitance + electrical interface + shell

Comparative analysis of advantages:

According to the iteration of the product, the optical device market is mixed. How to avoid falling into the trap of inferior products in this mixed era? Let's simply classify optical devices based on usage:

A：New optical devices, it turn into TO after domestic chip packaging/imported chip packaging , and it is processed and equipped with adapters and pins to break into optical devices.

B：Used optical devices, optical module products that have been eliminated from foreign data centers, removed PCBs, and re-flowed back to the market for circulation.

There is no data to define whether the device is old or new, and only long-term use can find the problem of product. In the long-term high temperature work, the life of optical devices is constantly lost, although the price of disassembled optical devices has a very big advantage, but in use there is a great communication hidden trouble, leading to signal transmission interruption, it is a great waste of the maintenance cost and time of the communication system.

C: Bad optical devices eliminated by large factories. Because of optical devices maintenance needs a lot of time/equipment and manpower, so some powerful leading enterprise in order to improve the production efficiency, abandon the bad goods stranded, eliminate some bad optical devices, and other companies is a very good circulation channels in this industry, buy through low prices, re-screen and repair, and re-enter the market, no doubt adding a vitality to the circulation market!

Main chip: Imported chips/domestic chips are highly concentrated in the market, such as Macom/Maxim/Semtech/Marvel Marvel/UX.

PCB: From the selection of the main chip to the PCB design, it does not infiltrate the engineers' innumerable efforts and sweat.PCB production from laser imaging, high-precision impedance testing, ETU-Link's PCB partners have 15 to 20 years of experience, these details shelter from wind and rain for the product in the application environment. Every nuance will be outstanding. In order to facilitate the identification of customers, PCB will screen ROHS and UL certification marks, and it is another milestone in product standardization and technological progress!

PCB copper, its significance is to reduce the ground wire impedance, improve the anti-interference ability; reduce the voltage drop, improve the power efficiency; and it connect to the ground wire which reduce the area of the loop. Suppliers rarely highly break down the details of these products, or even restrict the use of materials. This is the truth of "you get what you pay".

In order to ensure the signal stability and anti-interference ability of the optical module, the r&d engineer of ETU-Link has designed 3-4 layers of copper skin for our optical module. Do you feel very willing to splurge?

Resistance/capacitance: in order to reduce costs, some manufacturers have significantly reduced the amount of resistance/capacitance. In some harsh application environments, the protective circuit/step-down/shunt function of resistance/capacitance is continuously reduced. Precision circuit design, reasonable resistance/capacitance layout to improve product performance (picture is truth).

As a messenger of signal transmission, goldfinger is composed of a number of golden conductive contacts, The gold plating requirement of goldfinger is 0.38um hard gold in ETU-Link with high strength resistance to plugging. As the saying goes, Customers say yes is really good. The customer of ETU-Link has passed the high-intensity plugging test, which proves that the number of plugging of our optical module can be controlled at about 10000 times, ensuring the more lasting use of the product.

Does the zinc alloy shell fit like every clothes? Is the pull ring tight and is the plating spray paint resistant to oxidation? Is the plug smooth?

"As distance tests a horse's strength, so time reveals a person's heart", the product is good let time to witness, as the use cycle will find the advantages and disadvantages of the product. The market will wash every floating factor, ETU-Link will pour every detail by heart, carefully selected materials, design and manufacturing, and used with confidence!

When everything is ready, only the package is needed...

Only you can not think,there is nothing we can not do!

Feature 1: customize boxes of different sizes to avoid volume weight in international transportation and save freight cost for customers.

Feature 2: are you worried that your love package will be damaged during transportation? Don't worry, when the goods are packed, we will go up and down, left and right have put the stuffing, so that the product is fully protected.

Feature 3: Whether it is independent packaging, 5 or 10 packaging, ETU-Link is available for you to choose. Who makes you God?

Be my god and let us spoil you!

Whether it is in the transportation of products, or in the details of packaging, ETU-Link will pay more attention by heart, We hope that we can win your touch by heart!