National Instruments usb device 628x 用户手册

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© National Instruments Corporation
17
NI USB-622x/625x/628x OEM User Guide
Device Components
Table 2 contains information about the components used for interfacing 
and interacting with the USB-622x/625x/628x OEM device.
Table 2.  USB-622x/625x/628x OEM Components
Component
Reference Designator(s) on PCB
Manufacturer
Manufacturer 
Part Number
LEDs
DS1
Dialight
553-0332
34-pin connectors
(USB-6221/6251/6281 OEM)
 J1
3M
N2534-6002RB
(USB-6225/6229/6255/6259/6289 
OEM) 
J1, J2
50-pin connectors
(USB-6221/6251/6281 OEM) 
P1
3M
N2550-6002UB
(USB-6225/6229/6255/6259/6289 
OEM) 
P1, P2
USB connector
J3
AMP
787780-1
Power connector
(USB-6221/6229 OEM)
 J6
Switchcraft
722RA
(USB-6225/6255 OEM)
 J4
(USB-6251/6259/6281/6289 OEM)
 J8
Power switch
SW1
ITT Industries, 
Cannon
E101J1A3QE2
T 2A 250V fuse
XF1
Littelfuse
218.002XP
F 2A 125V fuse
(USB-6281/6289 OEM)
 F1
Littelfuse
0453002
68-pin 
connectors
*
(USB-6221 OEM)
 J8
Honda
PCS-E68RLMD1+
(USB-6225/6229/6255 OEM)
 J7, J8
(USB-6251/6281 OEM)
 J7
(USB-6259/6289 OEM)
 J6, J7
*
 Optional mass termination connectors. These are not populated by default.