I/O Board


BIO Board Design Service

  2016/12/22 下午 04:28:16      Administrator      General   0 Comments
BIO Board Design Service
The BIO interface, or board-to-board I/O interface, is AAEON’s latest innovation for product customization. The BIO board is designed with compactness in mind and is highly customizable for other add-on features like MiniCards, USBs, COM, PoE(Power over Ethernet) ports, etc., for the perfect solution.

BIO Standardized Pin Definition
While there are many approaches to which a product can be customized, AAEON recommends the BIO daughterboards, a series of daughterboards equipped with AAEON’s Board-to-board Interface for AAEON’s Standard Products. Being simple in design and madeto-order, the board takes time and effort out of customization by bypassing the traditional process of re-specifying, building, and testing
a product. Simply pick the features you want, build the board, connect it to the motherboard and your solution is ready. No fuss, no muss. 

Some key features include:
■  Unified screw holes on both the motherboard and daughterboard
■  Flexible to demands of vertical markets
■  Easy thermal and system assembly



Customization Made Easy 

POE (Power Over Ethernet)

  2016/12/28 下午 03:51:44      Administrator      General   0 Comments
What is PoE?
 
  • POE (Power Over Ethernet)
    • A technology that can transfer power and data to devices through the Ethernet using Cat 5. twisted pair cables.
    • Able to operate without the need to change the Ethernet cable architecture, saving time and money to configure the cables and relatively lowering the cost for the entire device system.
    • Equipped with remote power-on/power off capabilities, short-circuit protection, over/under-voltage protection and over-current protection.
  • PSE (Power Sourcing Equipment)
    • Responsible for injecting power into the Ethernet cable and implementing power plans and management.
  • PD (Power Device)
    • For example, IP phones, AP wireless network base stations, PDA or mobile phone chargers etc.
  • PSE End-Span:
    • Switches that include POE functions.
  • PSE Mid-Span:
    • Power supply trunk enhancer, which only provides power and not signals; the signal comes from your original inputand the PSE Mid-Span will output additional power.
IEEE 802.3af & IEEE 802.3at
Standard Poe Parameters and Comparison
  Available power Maximum power output Voltage range
(at PSE)
Voltage range
(at PD)
Maximum current Maximum cable resistance Supported wiring Supported mode
802.2af
(802.3at
Type 1)
12.95W 15.40W 44.0~57.0V 37.0~57.0V 350mA 20 ohm
(Cat 3)
Cat3
Cat5
Type A
(End-span)
Type B
(Mid-span)
802.3ar
Type 2
25.50W 34.20W 50.0~57.0V 42.5~57.0V 600mA
Per
mode
12.5 ohm
(Cat5)
Cat5 Type A & Type B
 
  • IEEE 802.3af:
    •  PSE provides voltages between 44~57V, approximately 350mA of direct current power; each port must at least be able to provide 15.4W of power and the wattage received by the PD terminal after passing 100 meters of cable must be at least 12.95W.
 
  • IEEE 802.3at:
    • PSE provides voltages between 50~57V, approximately 600mA of direct current power; each port must at least be able to provide 30W of power and the wattage received by the PD terminal after passing 100 meters of cable must be at least 25.5W.






1. Detection:
At first, the PSE equipment will output very small voltages at the terminal until it detects wherea power-receiving terminal device that supports the IEEE 802.3af standard is connected at the end-terminal of the cable.
 
2. Classification:
Once it detects the power-receiving terminal device (PD), the PSE equipment might categorize the PD device and assess the power loss needed by the PD device.
 
3. Start-Up:
Within the start-up period whenthe time can be configured (usually less than 15μs), the PSE equipment starts to supply power to the PD device starting with low voltages until it provides 48V of the direct current power.

4. Operation:
Providing stable and reliable 48V of direct current power to the PD device and satisfying the PD device with a power consumption of no more than 15.4W.
 
5. Disconnection:
If the PD device is disconnected from the network, the PSE will quickly (usually within 300~400ms) stop supplying power to the PD device and repeat the detection process to detect whether a PD device is connected at the end-terminal of the cable.


PoE Process(Cont.)
 
1. Detection:
At first, the PSE equipment will output very small voltages at the terminal until it detects that a power-receiving terminal device that supports the IEEE 802.3af standard is connected at the end-terminal of the cable.






2. Classification:
Once it detects the power-receiving terminal device (PD), the PSE equipment might categorize the PD device and assess the power loss needed by the PD device.




3. Start-Up:
Within the start-up period whenthe time can be configured (usually less than 15μs), the PSE equipment starts to supply power to the PD device starting with low voltages until it provides 48V of direct current power.




4. Operation:
Providing stable and reliable 48V of direct current power to the PD device and satisfying the PD device with a power consumption of no more than 15.4W.






5. Disconnection:
If the PD device is disconnected from the network, the PSE will quickly (usually within 300~400ms) stop supplying power to the PD device and repeat the detection process to detect whether a PD device is connected at the end-terminal of the cable.





















BIO-ST03-P2U1

 
  • 802.3af is divided into A Type and B Type, and the Ethernet transmission and power supply pins used are also different, resulting in the product device of the power-receiving terminal to also be different.
 
  • The following comparison table can be used to referto distinguishingfeatures between the pins:
    A Type: Power supply pins used are 1, 2, 3 and 6.
    B Type: Power supply pins used are 4, 5, 7 and 8.
 
The PSE terminal cannot supply power to all 8 pins simultaneously, but the PD terminal can be designed to receive power from all 8 pins.
  PSE (1,2,3,6 supply power) PSE (4,5,7,8 supplypower) PSE (all 8 pins supply power)
PD (1,2,3,6 receive power) V X X
PD (4,5,7,8 receive power) X V X
PD (all 8 pins receive power) V V V
 


 
  • The power supply pin is determined by the POE LAN Connector; some are only 1,2,3,6, some are only 4,5,7,8, but there are also methods thatallow all 8 pins to supply power. This is when a jumper or resistor needs to be used to select the power supply pin.




 

Intel ® What Is M.2(NGFF)_Tech Paper

  2016/9/10 下午 05:25:59      Administrator      General   0 Comments
The miniaturization of computers, particularly laptops, calls for a reduction in size for its parts and components, such as storage drives. The introduction of solid state drives (SSDs) has undoubtedly made a stride in making storage devices more conducive to compact designs like Ultrabooks, but the problems associating with the SATA interface, which is the industry standard and still widely used by SSDs, is becoming apparent as SSD technology advances. Though the thinner and smaller mSATA interface is later created, its inception still does not prevent the fact that the SATA 3.0 standard is bottlenecking the performance of SSDs. As a remedy to this situation, a new form of compact card interface, originally named the Next Generation Form Factor (NGFF), is developed and standardized into the new M.2 interface under the SATA version 3.2 specifications.

Image 1. Comparison between M.2 (NGFF) with other storage devices

Image 1 shows a side-by-side comparison between M.2 (NGFF) with other storage devices. We can see that in addition to SATA (Serial ATA), the pins for M.2 also incorporate PCI Express (Peripheral Component Interconnect Express) functionality, and the Key IDs for the corresponding pins of this new function are defined. In addition, image 2, which shows the difference between M.2 (NGFF) B Key and M Key, shows that B Key-M Key integrated modules are likewise supported.
 
With the all the functionalities supported by the module, please refer to the section below to get a quick understanding on its specification. 


Image 2.M.2(NGFF) B Key vs. M Key different




Image 3. Specification of M.2 module TYPE 2242-D2-B-M


Image 3 shows that in addition to dimensions, the height for components at the top and under side is clearly defined, subsequently affecting the height of the corresponding interface. The last two alphabets define the capability of the device. For example, by looking at the last two alphabets of Sample TYPE 2242-D2-“B”-“M”, we know that the device supports PCIe*4/SAT and PCIe*2/SATA/USB/PCM.

In a case study, the design team at AAEON’s Embedded Computing Division makes the M.2 design (SSD DC S3500 Series) practical and manages to install the SSD (Solid State Drive) to the underside of the solution, successfully integrating the M.2 design to the board for storage purposes and reducing the amount of room needed.

Image 4. M.2 module

Through this ODM case study, AAEON managed to fulfill the customer’s requirements by successfully completing the eye diagram and specifications tests and applying the M.2 interface, proving once again the ability of AAEON’s development team and stability of AAEON products.