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8x931HA USB Customer Hub

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Advance Information Datasheet

4.2

Plastic Encasing Removal and Assembly Procedures

The CHUB uses a molded plastic encasing to protect the PCB. Removing and assembling the 
plastic encasing requires some care since there are no screws used in the assembly of the PCB and 
the plastic encasing. Refer to Figure 4 for a Top and Bottom view of the CHUB plastic enclosure. 

4.2.1

Plastic Encasing Removal

The CHUB is shipped pre-assembled. The following section briefly describes the procedure for 
removing the plastic encasing.

To remove the Top portion of the plastic case, the user must orient the CHUB so that the bottom 
label is facing the user (upside down). Take ahold of the four corners of the Top portion of the 
encasing and gently extend the sides away from the Bottom portion. This extension will cause the 
Bottom portion of the encasing to free itself from the Top portion. Gently lift the Bottom portion 
out, one side at a time, until the Bottom portion is completely detached from the Top portion. This 
frees the PCB from the grooves located on the sides of the Top portion. 

Once the top portion is removed, the PCB will sit on the bottom portion. To remove the PCB from 
the Bottom portion, the user must gently extend the sides away from the Bottom portion, starting 
with the side of the PCB containing the USB connectors. Once this side of the PCB is out of the 
Bottom portion of the encasing, the user can lift the PCB out at a 25° angle. Be careful of the 
placement of the toggle switch in respect to the Bottom portion. Pulling out the PCB without 
angling it may cause damage to PCB and the Bottom portion. 

4.2.2

Plastic Encasing Assembly

This section briefly describes the procedure to assemble the Top and Bottom portions of the plastic 
enclosure to the PCB.

Place the PCB into the Bottom portion, as depicted in Figure 4, at a 25° angle, placing the toggle 
switch into its Bottom portion opening. Extend the opposite side of the Bottom portion enough to 
lower the PCB into the Bottom portion. Both the toggle switch and USB connectors should fit snug 
into their respective openings on the Bottom portion.

Note:

Be careful with the LED. The user may have to adjust the LED once the above procedure is done. 
This can be done by gently pushing the LED into its Bottom portion opening.

Starting from one side, extend the Top portion such that the Top portion grooves can be placed 
onto the PCB within the Bottom portion. Perform this procedure on the second side so that both 
grooves on the Top portion sides are firmly holding the PCB in place. Gently push down until the 
PCB snaps into place, and the Bottom and Top portions are reassembled.

4.3

Component Specifications

The CHUB uses off-the-shelf components. Refer to the specific manufacturer’s datasheet for 
component specifications. See Section 5.0, “Bill of Materials”.

Содержание 8x931HA

Страница 1: ...Hub Connectivity Management Downstream Device Connect Disconnect Detection Power Management Including Suspend and Resume Bus Fault Detection and Recovery Full and Low Speed Downstream Device Support...

Страница 2: ...product descriptions at any time without notice Designers must not rely on the absence or characteristics of any features or instructions marked reserved or undefined Intel reserves these for future...

Страница 3: ...pping 10 4 0 Mechanical Data 11 4 1 Module Dimensions 11 4 2 Plastic Encasing Removal and Assembly Procedures 12 4 2 1 Plastic Encasing Removal 12 4 2 2 Plastic Encasing Assembly 12 4 3 Component Spec...

Страница 4: ......

Страница 5: ...l com design usb manuals A variety of product information is available at http developer intel com design usb USB software support can be found at http developer intel com design usb swsup Intel 8x931...

Страница 6: ...user The CHUB device will have a label on the bottom resembling Figure 3 Table 3 describes the device connections and their specific types A4601 01 Port0 Upstream Port2 Port3 12 MHz Clock 8x931 Hx Int...

Страница 7: ...5 0 V 2 Switch S1 Double pole double throw n a UPSTREAM J3 Type B USB connector Port 2 J4 Type A USB connector Self 500mA Bus 100mA Port 3 J4 Type A USB connector Self 500mA Bus 100mA Port 4 J2 Type A...

Страница 8: ...from either internal or external memory 3 3 Internal Program Memory Option Intel s 8x931HA USB Peripheral hub controller comes preprogrammed with an internal ROM code which enumerates and configures...

Страница 9: ...ovide a starting point to IHVs for development of their products Users of the CHUB are responsible for all designs they may create with the CHUB Some trade offs should be noted which were made to inco...

Страница 10: ...with a 5V 5 power supply but will not have the allocated voltage drop budget allowed Any power supply used should have the ability to provide a minimum of 2 Amps continuous current The USB system des...

Страница 11: ...ncasing Figure 5 gives the device dimensions and connector orientations Figure 4 Top and Bottom View of CHUB Encasing Figure 5 Device Dimensions A4543 01 Bottom portion of case Top portion of case A45...

Страница 12: ...containing the USB connectors Once this side of the PCB is out of the Bottom portion of the encasing the user can lift the PCB out at a 25 angle Be careful of the placement of the toggle switch in res...

Страница 13: ...ble contains the bill of materials used in building the CHUB Reference the specific manufacturer s datasheet for specifications Intel does not recommend or endorse any suppliers The inclusion of this...

Страница 14: ...JMP3POS JMP3 90726 103 not populated 15 5 JW3 JW4 JW6 JW7 JW8 shunt 68786 102 Low profile 2 pin shunt clip 16 1 J1 CON2 RAPC 722 Phihong PSA 183 supply mate R A PCB mount 17 2 J4 J2 USB_A_Stacked 7876...

Страница 15: ...USB Customer Hub 6 0 Schematics This section displays schematics for the 8x931HA CHUB board These schematics are also on the diskette s provided with this kit These schematics may also be downloaded v...

Страница 16: ...Y1 12 MHz 1 2 JW1 shunt C5 1uF 1 2 U2X SOCKET68 RP1 22 ohm 1 2 3 4 5 6 7 8 RP5 22 ohm 1 2 3 4 5 6 7 8 RP2 15k ohm 1 2 3 4 5 6 7 8 9 10 JW1 1 2 3 4 5 6 RP3 22 ohm 1 2 3 4 5 6 7 8 U1 27C256 JW2 shunt C8...

Страница 17: ...V DGND P5V DGND P5V DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND C4 10uF 1 2 C14 0 1uF 1 2 C17 100 uF 1 2 C15 100 uF 1 2 J4 USB_A_Stacked B1 B2 B3 B4 T 1 T 2 T 3 T 4 R1 1 5k ohm 1 2 J2 USB_A_Stac...

Страница 18: ......

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