Ports and Connectors

The cRIO-903x provides the following ports and connectors.

Figure 8. cRIO-9030/9031/9033/9034/9035/9036/9038/9039 Ports and Connectors

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  1. RJ-45 Gigabit Ethernet Ports
  2. Power Connector
  3. SD Card Removable Storage
  4. RS-232 Serial Port
  5. RS-485/422 (DTE) Serial Port
  6. Mini DisplayPort
  7. USB Host Ports
  8. USB Device Port
Figure 6. cRIO-9032/9037 Ports and Connectors

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  1. RJ-45 Gigabit Ethernet Ports
  2. Power Connector
  3. Antenna Port 2
  4. Antenna Port 1
  5. RS-232 Serial Port
  6. RS-485/422 (DTE) Serial Port
  7. Mini DisplayPort
  8. USB Host Ports
  9. USB Device Port

RJ-45 Gigabit Ethernet Ports

The cRIO-903x has two tri-speed RJ-45 Gigabit Ethernet ports. By default, both Ethernet ports are enabled and configured to obtain an IP address automatically. The Ethernet ports can be configured in MAX.

The following table shows the pinout for the RJ-45 Gigabit Ethernet ports.

Table 1. RJ-45 Gigabit Ethernet Port Pinout
Fast Ethernet Signal Gigabit Ethernet Signal Pin Pinout
TX+ TX_A+ 1 1378
TX- TX_A- 2
RX+ RX_B+ 3
No Connect TX_C+ 4
No Connect TX_C- 5
RX- RX_B- 6
No Connect RX_D+ 7
No Connect RX_D- 8
Note Both Ethernet ports perform automatic crossover configuration so you do not need to use a crossover cable to connect to a host computer.

The following NI Ethernet cables are available for the cRIO-903x.

Table 2. RJ-45 Gigabit Ethernet Cables
Cables Length Part Number
8M-8M Ethernet Cable 2 m 151733-02
5 m 151733-05
10 m 151733-10

Power Connector

The cRIO-903x has a power connector to which you can connect a primary and secondary power supply. The following table shows the pinout for the power connector.

Table 3. Power Connector Pinout
Pinout Pin Description
1378 V1 Primary power input
C Common
V2 Secondary power input
C Common
Notice The C terminals are internally connected to each other, but are not connected to chassis ground. This isolation is intended to prevent ground loops and does not meet UL ratings for safety isolation. You can connect the C terminals to chassis ground externally. Refer to the specifications for your controller for information about the power supply input range and maximum voltage from terminal to chassis ground.

If you apply power to both the V1 and V2 inputs, the cRIO-903x operates from the V1 input. If the input voltage to V1 is insufficient, the cRIO-903x operates from the V2 input.

The cRIO-903x has reverse-voltage protection.

The following NI power supplies and accessories are available for the cRIO-903x.

Table 4. Power Accessories
Accessory Part Number
NI PS-15 Power Supply, 24 VDC, 5 A, 100-120/200-240 VAC Input 781093-01
NI PS-10 Desktop Power Supply, 24 VDC, 5 A, 100-120/200-240 VAC Input 782698-01
NI-9981 CompactRIO 4-Position Gold PS Connector 783529-01
NI-9979 Strain Relief for 4-Position Power Connector 196939-01

SD Card Removable Storage and SD Slot Cover

(cRIO-9030/9031/9033/9034/9035/9036/9038/9039) The cRIO-903x provides an SD card slot that can read from and write to NI-approved SD cards.

You must use the SD card slot cover to protect the SD card in hazardous locations. Do not remove an SD card while either LED is flashing or lit because file corruption may result.

Caution Do not insert or remove SD cards unless power has been switched off or the area is known to be nonhazardous.
Attention N'insérer ou ne retirer des cartes SD que si l'appareil est hors tension ou s'il se trouve dans une zone non dangereuse.
Note Using SD cards that are not approved by NI might invalidate specifications and result in unreliable performance.

The following accessories are available for the SD card slot.

Table 5. cRIO-903x SD Storage Accessories
SD Card Capacity Part Number
Removable Memory Card 16 GB 783658-01
32 GB 783659-01
SD Slot Cover — 783660-01

Complete the following steps to attach the SD Slot Cover.

  1. Screw the slot cover closed completely.
  2. Tighten the captive screws to a maximum torque of 0.75 N · m (6.7 lb · in.) using a #1 Phillips screwdriver. Do not overtighten.

Wireless Antenna Ports

(cRIO-9032/9037) The cRIO controller provides two connectors for wireless antennas.

Table 6. cRIO-9032/9037 Wireless Antenna Ports
Port Description
Antenna 1 Primary antenna connector
Antenna 2 Secondary antenna connector

Follow these guidelines to prevent interference with the C Series modules when transmitting data wirelessly.

  • When mounting the cRIO-903x inside an enclosure, use RP-SMA (male) to RP-SMA (female) extension cables to route antennas outside of enclosure.
  • Do not route C Series module cabling near either antenna.
  • Do not position the antennas in an orientation that crosses the antenna keepout shown in the following figure.
Figure 7. Antenna Keepout

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Note NI recommends connecting both antennas for the optimal wireless performance and reliability.
Notice In regions governed by the FCC and ETSI, only those antennas tested with the device or similar antennas with equal or lesser gain may be used with this transmitter. Depending on the regulatory region or country, alternate antennas may not be covered by National Instruments transmitter certifications of the cRIO-903x. NI recommends using only antennas provided with the cRIO-903x.

The following accessory is available as a replacement for the antennas provided by NI.

Table 7. Replacement Accessories
Antenna Part Number
cRIO Dual Band Antenna 784818-01

RS-232 Serial Port

The cRIO-903x has an RS-232 serial port that is implemented with an RJ-50, 10-position modular jack to which you can connect devices such as displays or input devices. Use the Serial VIs to read from and write to the serial port. Refer to the LabVIEW Help for information about the Serial VIs.

Find examples on how to use NI-Serial or NI-VISA to perform serial communication in the NI Example Finder. The NI Example Finder is located at Help » Find Examples.

Note The RS-232 serial port cannot be accessed by the user application when the Console Out startup option is enabled.

The following table shows the pinout for the RS-232 serial port.

Table 8. RS-232 Serial Port Pinout
Pinout Pin Signal
1378 1 No Connect
2 RI
3 CTS
4 RTS
5 DSR
6 GND
7 DTR
8 TXD
9 RXD
10 DCD

You can use the Ring Indicator (RI) on pin 2 to wake the controller from a low-power state. You can drive RI with a logic level high to wake the cRIO-903x. Refer to the specifications for your controller for the RI wake voltage.

The following accessories are available to connect the RS-232 serial port to a 9-pin DSUB plug.

Table 9. RS-232 Serial Port Accessories
Accessory Length Part Number
10RJ50-DB9M Serial Cable 1 m 182845-01
2 m 182845-02
3 m 182845-03

RS-485/422 (DTE) Serial Port

The cRIO-903x has an RS-485/422 (DTE) serial port that is implemented with an RJ-50, 10-position modular jack. The RJ-50 connector is isolated from the cRIO-903x. For more information about the electrical isolation of the RS-485/422 (DTE) port, refer to the specifications for your controller.

Find examples on how to use NI-Serial or NI-VISA to perform serial communication in the NI Example Finder. The NI Example Finder is located at Help » Find Examples.

The following table shows the pinout for the RS-485/422 (DTE) serial port.

Table 10. RS-485/422 (DTE) Serial Port Pinout
Pinout Pin Signal
1378 1 No Connect
2 TXD-
3 TXD+
4 No Connect
5 No Connect
6 RXD-
7 RXD+
8 No Connect
9 No Connect
10 Isolated GND
Notice To ensure the specified EMC performance, you must use an isolated cable with the RS-485/422 (DTE) serial port. The following accessory meets this requirement.
Table 11. RS-485/422 (DTE) Serial Port Accessory
Accessory Length Part Number
10RJ50-DB9M Serial Cable 1 m 184428-01

Mini DisplayPort

Use the Mini DisplayPort to connect a monitor and implement a local HMI. You can use a single real-time VI to interactively develop both your user interface and system logic. For more information, refer to the Using the Embedded UI to Access RT Target VIs topic in the LabVIEW Help.

Caution Do not disconnect the power supply wires, I/O-side wires, or connectors from the product unless power has been switched off or the area is known to be nonhazardous.
Attention Ne déconnectez les fils d'alimentation, les fils côté E/S et les connecteurs du produit que s'il est hors tension ou qu'il se trouve dans une zone non dangereuse.
Hazardous Voltage The product is designed for nonhazardous, live signals. You must ensure that all signals connected to the product are isolated from hazardous, live circuits and no unsafe voltages are present at the inputs. Voltages that exceed the specifications could result in damage to the product or electric shock.
Tension dangereuse Le produit est conçu pour les signaux en direct non dangereux. Vous devez vous assurer que tous les signaux connectés au produit sont isolés des circuits dangereux sous tension et qu'aucune tension dangereuse n'est présente aux entrées. Des tensions supérieures à celles mentionnées dans les spécifications peuvent endommager le produit ou provoquer un choc électrique.

The following table shows the pinout for the Mini DisplayPort.

Table 12. Mini DisplayPort Pinout
Signal Pin Pinout Pin Signal
DP_PWR 20 1378 19 GND
AUX_CH(n) 18 17 ML_Lane2(n)
AUX_CH(p) 16 15 ML_Lane2(p)
GND 14 13 GND
ML_Lane3(n) 12 11 ML_Lane1(n)
ML_Lane3(p) 10 9 ML_Lane1(p)
GND 8 7 GND
CONFIG2 6 5 ML_Lane0(n)
CONFIG1 4 3 ML_Lane0(p)
Hot Plug 2 1 GND

The following adapters are available to connect the Mini DisplayPort to full-size DisplayPort, VGA, or DVI. The cRIO-903x only supports DVI single link. Refer to the cRIO-903x pricing page on ni.com for a complete list of cables and accessories.

Table 13. Mini DisplayPort Accessories
Accessory Length Part Number
Mini DisplayPort to DisplayPort 0.5 m 157232-0R5
1 m 157232-01
2 m 157232-02
Mini DisplayPort to VGA Adapter Cable 0.5 m 157230-0R5
Mini DisplayPort to DVI Adapter Cable 0.5 m 157231-0R5
Mini DisplayPort Retention Accessory — 156866-01

USB Host Ports

The USB host ports on the cRIO-903x support common USB mass-storage devices such as USB Flash drives, USB-to-IDE adapters, keyboards, mice, and USB cameras.

Caution Do not disconnect the power supply wires, I/O-side wires, or connectors from the product unless power has been switched off or the area is known to be nonhazardous.
Attention Ne déconnectez les fils d'alimentation, les fils côté E/S et les connecteurs du produit que s'il est hors tension ou qu'il se trouve dans une zone non dangereuse.
Hazardous Voltage The product is designed for nonhazardous, live signals. You must ensure that all signals connected to the product are isolated from hazardous, live circuits and no unsafe voltages are present at the inputs. Voltages that exceed the specifications could result in damage to the product or electric shock.
Tension dangereuse Le produit est conçu pour les signaux en direct non dangereux. Vous devez vous assurer que tous les signaux connectés au produit sont isolés des circuits dangereux sous tension et qu'aucune tension dangereuse n'est présente aux entrées. Des tensions supérieures à celles mentionnées dans les spécifications peuvent endommager le produit ou provoquer un choc électrique.

The following table shows the pinout for the USB host ports.

Table 14. USB Host Port Pinout
Pinout Pin Signal Description
1378 1 VCC Cable power (5 V)
2 D- USB data-
3 D+ USB data+
4 GND Ground

The following NI cable is available for the cRIO-903x.

Table 15. USB Host Port Cable
Cable Length Part Number
USB Extension with Retention, Type A Connectors 0.5 m 152166-0R5
2 m 152166-02

USB Device Port

The cRIO-903x USB device port is intended for device configuration, application deployment, debugging, and maintenance. For example, you can use the USB device port to install software or driver updates during field maintenance instead of interrupting communication on the RJ-45 Ethernet ports.

Caution Do not disconnect the power supply wires, I/O-side wires, or connectors from the product unless power has been switched off or the area is known to be nonhazardous.
Attention Ne déconnectez les fils d'alimentation, les fils côté E/S et les connecteurs du produit que s'il est hors tension ou qu'il se trouve dans une zone non dangereuse.
Hazardous Voltage The product is designed for nonhazardous, live signals. You must ensure that all signals connected to the product are isolated from hazardous, live circuits and no unsafe voltages are present at the inputs. Voltages that exceed the specifications could result in damage to the product or electric shock.
Tension dangereuse Le produit est conçu pour les signaux en direct non dangereux. Vous devez vous assurer que tous les signaux connectés au produit sont isolés des circuits dangereux sous tension et qu'aucune tension dangereuse n'est présente aux entrées. Des tensions supérieures à celles mentionnées dans les spécifications peuvent endommager le produit ou provoquer un choc électrique.

The following table shows the pinout for the USB device port.

Description Signal Pin Pinout Pin Signal Description
USB data+ D+ 3 1378 2 D- USB data-
Ground GND 4 1 VCC Cable power (5 V)

The following NI cable is available for the cRIO-903x.

Table 16. USB Device Port Cable
Cable Length Part Number
USB Cable 1 m 157788-01