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USER GUIDE
NI USB-6221/6229/6251/6259 OEM
This document provides dimensions, pinouts, and information
about the connectors, switch, LEDs, and chassis ground of the
NI USB-6221/6229/6251/6259 OEM devices.
Caution There are no product safety, electromagnetic compatibility (EMC), or
CE marking compliance claims made for the USB-6221/6229/6251/6259 OEM devices.
Conformity to any and all compliance requirements rests with the end product supplier.
Figure 1 shows the USB-6221/6251 OEM and USB-6229
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Dimensions Figure 2 shows the dimensions of the USB-6221/6251 OEM device. 4X Ø 0.110 (2.79) 6.950 (176.53) 7X Ø 0.125 (3.18) 4x 6.718 (170.63) 6.270 (159.26) 6.140 (155.96) 6.140 (155.96) 5.930 (150.62) 5.760 (146.30) 5.290 (134.37) 5.080 (129.03) 2X Ø 0.156 (3.96) 2.535 (64.39) 0.396 (10.06) 0.304 (7.72) 0.256 (6.50) 0.304 (7.72) 0.116 (2.95) 0.200 (5.08) 0.000 (0.00) 0.436 (11.07) 0.392 (9.96) 0.362 (9.19) 0.162 (4.11) 0.515 (13.08) 0.062 (1.57) 0.000 (0.00) 2X Ø 0.140 Cutout in Panel for LEDs
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Figure 3 shows the dimensions of the USB-6229/6259 OEM device. 4X Ø 0.110 (2.79) 6.950 (176.53) 7X Ø 0.125 (3.18) 4x 6.718 (170.63) 6.270 (159.26) 6.140 (155.96) 6.140 (155.96) 5.930 (150.62) 5.760 (146.30) 5.839 (148.31) 5.290 (134.37) 5.499 (139.67) 5.080 (129.03) 2X Ø 0.156 (3.96) 2.535 (64.39) 0.396 (10.06) 0.304 (7.72) 0.256 (6.50) 0.304 (7.72) 0.116 (2.95) 0.200 (5.08) 0.000 (0.00) 0.436 (11.07) 0.392 (9.96) 0.362 (9.19) 0.162 (4.11) 0.515 (13.08) 0.062 (1.57) 0.000 (0.00) 2X Ø 0.140 Cutou
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I/O Connector Pinouts Figures 4 through 7 show the connector pinouts for the USB-6221 OEM, USB-6229 OEM, USB-6251 OEM, and USB-6259 OEM devices. Refer to the M Series User Manual at ni.com/manuals for more information about USB-6221/6229/6251/6259 signals and how to connect them. NI USB-6221/6229/6251/6259 OEM User Guide 4 ni.com
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Bank 0 50-Pin Digital Connector +5 V +5 V D GND PFI 15 D GND PFI 14 D GND PFI 13 D GND PFI 12 D GND PFI 11 D GND PFI 10 D GND PFI 9 D GND PFI 8 D GND PFI 7 D GND PFI 6 D GND PFI 5 PFI 4 D GND D GND PFI 3 D GND PFI 2 D GND PFI 1 D GND PFI 0 D GND P0.7 D GND P0.6 D GND P0.5 D GND P0.4 D GND P0.3 D GND P0.2 D GND P0.1 D GND P0.0 Bank 0 34-Pin Analog Connector AI GND 34 33 AI 15 AI 7 32 31 AI GND AI 14 30 29 AI 6 AI GND 28 27 AI 13 AI 5 26 25 AI GND AI 12 24 23 AI 4 AI GND 22 21 AI 11 AI 3 20 19 AI
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Bank 1 Bank 0 50-Pin Digital Connectors +5 V 50 49 +5 V +5 V +5 V D GND 48 47 P0.31 D GND PFI 15 D GND 46 45 P0.30 D GND PFI 14 D GND 44 43 P0.29 D GND PFI 13 D GND 42 41 P0.28 D GND PFI 12 D GND 40 39 P0.27 D GND PFI 11 D GND 38 37 P0.26 D GND PFI 10 D GND 36 35 P0.25 D GND PFI 9 D GND 34 33 P0.24 D GND PFI 8 D GND 32 31 P0.23 D GND PFI 7 D GND 30 29 P0.22 D GND PFI 6 D GND 28 27 P0.21 D GND PFI 5 D GND 26 25 P0.20 D GND PFI 4 D GND 24 23 P0.19 D GND PFI 3 D GND 22 21 P0.18 D GND PFI 2 D GND 20
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Bank 0 50-Pin Digital Connector +5 V +5 V D GND PFI 15 D GND PFI 14 D GND PFI 13 D GND PFI 12 D GND PFI 11 D GND PFI 10 D GND PFI 9 D GND PFI 8 D GND PFI 7 D GND PFI 6 D GND PFI 5 D GND PFI 4 D GND PFI 3 D GND PFI 2 D GND PFI 1 D GND PFI 0 D GND P0.7 D GND P0.6 D GND P0.5 D GND P0.4 D GND P0.3 D GND P0.2 D GND P0.1 D GND P0.0 Bank 0 34-Pin Analog Connector AI GND 34 33 AI 15 AI 7 32 31 AI GND AI 14 30 29 AI 6 AI GND 28 27 AI 13 AI 5 26 25 AI GND AI 12 24 23 AI 4 AI GND 22 21 AI 11 AI 3 20 19 AI
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Bank 1 Bank 0 50-Pin Digital Connectors +5 V 50 49 +5 V +5 V +5 V D GND 48 47 P0.31 D GND PFI 15 D GND 46 45 P0.30 D GND PFI 14 D GND 44 43 P0.29 D GND PFI 13 D GND 42 41 P0.28 D GND PFI 12 D GND 40 39 P0.27 D GND PFI 11 D GND 38 37 P0.26 D GND PFI 10 D GND 36 35 P0.25 D GND PFI 9 D GND 34 33 P0.24 D GND PFI 8 D GND 32 31 P0.23 D GND PFI 7 D GND 30 29 P0.22 D GND PFI 6 D GND 28 27 P0.21 D GND PFI 5 D GND 26 25 P0.20 D GND PFI 4 D GND 24 23 P0.19 D GND PFI 3 D GND 22 21 P0.18 D GND PFI 2 D GND 20
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LEDs USB-6221/6229/6251/6259 OEM devices have two LEDs that reflect the device state. The green READY LED indicates whether the device is powered on and configured as a USB device. The yellow ACTIVE LED indicates whether there is USB bus activity. Three connectors on the device allow you to connect an external LED circuit to the device. To connect an external READY LED, use E1 as the positive connection (+3.3 V) and E2 as the negative connection. To connect an external ACTIVE LED, use E1 a
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XF1 Power Switch The power switch on the USB-6221/6229/6251/6259 OEM device powers the device on and off. Figure 10 shows the pins on the power switch. Provides VDC Comes Power to from Fuse Device 3 2 1 J4 SW1 100 kΩ Switch 45 Outer Shell Figure 10. Power Switch (USB-6229/6259 OEM Shown) Pin 1 is connected to VDC through the fuse (reference designator XF1). The VDC is the voltage provided by the power supply through the power connector (reference designator J4) and must be 11–30 V, 20 W. Pi
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Chassis Ground Chassis ground provides a connection between the enclosure and USB ground. D GND is connected to the chassis ground through an internal connection to hole A, shown in Figure 12. The chassis ground directly connects to USB shield ground. The USB-6221/6229/6251/6259 OEM device includes several mounting holes that are plated and designed for user-configured ground connections between the device chassis ground and the appropriate system ground. Figure 12 shows where the differen
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Device Components Table 1 contains information about the components used for interfacing and interacting with the USB-6221/6229/6251/6259 OEM device. Table 1. USB-6221/6229/6251/6259 OEM Components Reference Designator(s) Manufacturer Component on PCB Manufacturer Part Number LEDs DS1 Dialight 553-0332 * 34-pin connectors J1, J2 3M N2534-6002RB * 50-pin connectors P1, P2 3M N2550-6002UB USB connector J3 AMP 787780-1 Power connector J4 Switchcraft 722RA Power switch SW1 ITT Industries, Cannon
