Sawadika, I am a good student In the previous article, many of my friends were asking me about my phone case. In fact, it is Apple's official liquid silicone shell Just when my friend sent a New Year's gift, she just wrote it out of the box. â–¼ The current Apple official is basically SF and EMS â–¼ After opening, a piece of paper on a shell Apple's official mall is able to fill in the speech "Hearts are mountains and seas, and they have no boundaries." I like it very much, thanks to the distant friends In fact, it is a gift message, but this incident also made a lot of jokes. Do you remember the days before Apple bought products to send SoLo3 headphones? There was a big brother that night. I didn't know that the message was just a gift. It was just like taking out the chili and remarking. Cook Dad:? ? ? Nothing else was said about this big brother, and he shared the thought of laughing at the middle of the night. Pull away, we continue to say â–¼ Outer packaging The friend sent this called PRODUCT RED Although there is some dissatisfaction with the fact that Apple has intensified its efforts to save money, this kind of work involving public welfare is still quite in place. â–¼ Compare with the previous sea blue â–¼ Only a simple Apple Logo on the back In recent years, Apple has tightened its use of its own Logo. Manufacturers of accessories that are currently shipping a bit larger will avoid using Apple's Logo. â–¼ The camera's position is depressed in a circle to protect the 7th-generation raised lens â–¼ The hole is naturally very accurate, it is slightly higher than the lens, avoiding daily wear and tear â–¼ sea blue â–¼ But the quality control of the official shell is not perfect, pay attention to see the burr on the edge of the lens opening, and the sea blue does not have this problem â–¼ On both sides of the button and mute button hole, button rebound soft and hard moderate â–¼ We all know that the mold line of silicone products is inevitable, but Apple's silicone shell is a good solution to this problem Note that the mould line is basically invisible, which is also an important basis for distinguishing genuine products from cottages. â–¼ The inner lining is ultra-fibre flocking, the workmanship is very fine, it will not produce scratch marks on the back shell of the mobile phone â–¼ Neri fonts are sharp and sharp, iPhone fonts are thick This is also an indicator of authenticity â–¼ Red has the Product Red logo â–¼ Inside the camera opening, even if the individual quality control a little burr, but the overall hole is too uniform At the same time, in the opening of the inner lining laser laser engraving in a circle, you can put the superfine fiber flattened will not produce flash â–¼ Part of the chin is open â–¼ Many of my friends may worry that the drop will not hurt the unprotected bottom during daily use. For my official shell use in recent years, the drop has not caused any damage to the chin. â–¼ On the machine Let's talk about the feeling here. If you score 100 points, I can give 95 points. The official silicone shell, tried once in the store since iPhone 6, never tried other shells again Soft and hard, moderate friction. Good fit with the phone, feels silky smooth It is recommended that friends who want to buy better go to the store to feel it. â–¼ limited by the material, the shell will be more gray, fortunately easier to remove â–¼ In front of you, I want to give it a try. It is these two corners that basically have no end to the silicone shell in my hand. All of them are the same cracking problem. Demolition is usually more attention, but still inadvertently cracked, and genius said it is not within the scope of the warranty It is recommended not to dismantle regularly â–¼ In addition to the silicone shell, the official also has a leather back shell Price is more expensive than silicone shell Compared to silicone shell, the advantage is that it is not easy to get dirt and sweat But leather, there will be signs of years when you use it for a long time. As usual, the advantages and disadvantages advantage: Officially produced, accurate opening, perfect fit with the phone; Lined with fine flocking to effectively protect the phone; Feel good, button rebound moderate; The choice of colors is varied, and the red color matches this year's bright black and matte black with a good face value; Disadvantages: Silicone material is easily contaminated with dust and hand sweat; The lower two legs are very fragile and relatively easy to crack. Details can be visited at major Apple Stores; The fit is very high, so the disassembly will be more difficult; Personally, rather than buying a lot of cheap fancy shells, it's better to buy a liquid silicone. In terms of materials, fit and feel, there are really few on the market The official shell of the millet Mix and hammer M1 is also the same supplier as Apple. The price of 258 is not cheap, but after you get it, you may feel the value of returning the fare Markets are mixed and there are mostly fake products. The first rich family's shells, fakes are basically more than 95%, many of which are well-known KOL involved in the sale. As far as I currently buy, only the K family is genuine Finally, let's talk briefly about the authentication method. 1: The official shell basically does not have any taste, most imitation products have some odors, and some are still relatively pungent 2: look at the side of the shell side of the mold line, which is the mold seam The genuine is almost invisible, and most of the imitations will be more obvious. â–¼ Both of the following figures are fakes. 3: The original font is carved clearly, the letter depth is consistent, and the iPhone is thicker 4: Lens opening The official lens opening is even and sleek, with few burrs And after laps with a laser laser around the lens, there will be obvious signs of depression. 5: Genuine stencil pressed in the lining of the volume keys has the same position as the phone volume key This will make the press feel better, most imitation products on the suede surface pressure, but the depth is not as good as genuine 6: lined with two feet, the authentic microfiber is plumply attached to the bottom shell, the edge does not have a large gap Imitation gap is larger, and the corners are prone to wrinkles 7: Inside the volume key part, the genuine microfiber and the bottom case are tightly fit together Imitation is slightly harder, the bottom shell and the super fiber will be separated 8: Lined with ultra-fiber material, authentic ultra-fiber looks longer and feel better, imitation hair short and rough Authentic microfiber touch will have obvious traces, and can smooth, imitation products are not changed much Imitation Logo is carved after, can clearly see the signs of the middle Then say the next purchase channel, worry or recommend to go to Apple's official website, Tmall flagship store and Apple Store store to buy Most Taobao fakes, very few to sell genuine stores, but also most of the time out of stock, the arrival of the basic relies on buying The shells of the regular channels, outflows are very few, low prices are unlikely to be received, and thousands of sales at any time can be almost confirmed as fakes. OK, basically this is it I wish you all a happy New Year in advance, peace and joy Finally wave hard, welcome to pay attention End... Industrial Ethernet Switches are specifically designed to meet the needs of flexible industrial applications and provide a cost-effective industrial Ethernet communication solution. And its networking mode is more focused on loop design. The ring has the difference between single ring and multiple ring. At the same time, there are private ring protocols designed by various manufacturers based on STP and RSTP, such as RingOn, RingOpen open loop, FRP ring, turbo ring, etc. Industrial Managed Switch,Industrial 8 Port Switch,Gigabit L2 Ethernet Switch,Gigabit Poe Industrial Switch Shenzhen Scodeno Technology Co.,Ltd , https://www.scodenonet.com
The network management switch can be managed through the following ways: management through RS-232 serial port (or parallel port), management through web browser and management through network management software.
1. Management via serial port
The network management switch comes with a serial cable for switch management. First plug one end of the serial cable into the serial port on the back of the switch, and plug the other end into the serial port of an ordinary computer. Then power on the switch and the computer. The "Hyper Terminal" program is provided in both Windows 98 and Windows 2000. Open the "Hyper Terminal", after setting the connection parameters, you can interact with the switch through the serial cable. This method does not occupy the bandwidth of the switch, so it is called "Out of band" (Out of band).
In this management mode, the switch provides a menu-driven console interface or command line interface. You can use the "Tab" key or arrow keys to move through the menus and submenus, press the Enter key to execute the corresponding commands, or use the dedicated switch management command set to manage the switch. Switches of different brands have different command sets, and even switches of the same brand have different commands. It is more convenient to use menu commands.
2. Manage via web
The managed switch can be managed via Web (web browser), but an IP address must be assigned to the switch. This IP address has no other purpose except for the management switch. In the default state, the switch does not have an IP address. You must specify an IP address through the serial port or other methods to enable this management method.
When using a web browser to manage the switch, the switch is equivalent to a Web server, but the web page is not stored in the hard disk, but in the NVRAM of the switch. The Web program in the NVRAM can be upgraded through the program. When the administrator enters the IP address of the switch in the browser, the switch will transfer the web page to the computer like a server, and it will feel like you are visiting a website. This method occupies the bandwidth of the switch, so it is called "in band management" (In band).
If you want to manage the switch, just click the corresponding function item on the webpage and change the switch parameters in the text box or drop-down list. Web management can be carried out on the local area network in this way, so remote management can be realized.
3. Managed by network management software
Network management switches all follow the SNMP protocol (Simple Network Management Protocol), which is a set of network equipment management specifications that comply with international standards. All devices that follow the SNMP protocol can be managed through network management software. You only need to install a set of SNMP network management software on a network management workstation, and you can easily manage the switches, routers, servers, etc. on the network through the LAN.
The management of the network management switch can be managed in the above three ways. Which method is used? When the switch is initially set up, it is often through out-of-band management; after setting the IP address, you can use in-band management. In-band management Because the management data is transmitted through a publicly used LAN, remote management can be achieved, but the security is not strong. Out-of-band management is through serial communication, and data is only transmitted between the switch and the management machine, so the security is very strong; however, due to the limitation of the length of the serial cable, remote management cannot be realized. So which method you use depends on your requirements for security and manageability.