Measurement Computing AI-EXP32 - Manual (Page 7)

AI-EXP32 User's Guide Installing the AI-EXP32
7
Connecting to a USB-2416 Series device with the DSUB37 expansion
connector
Use the 37-pin expansion connector to connect the AI-EXP32 to a USB-2416 Series device.
To connect the two devices directly to each other, follow these steps.
1. Disconnect the USB cable from the USB-2416 Series device.
2. Remove the external power cable from the USB-2416 Series device.
3. Connect the two devices together by inserting the AI-EXP32' DSUB37 connector into the DSUB37
connector on the USB-2416 Series device.
Figure 1. AI-EXP32 directly connected to a USB-2416-4AO
4. Turn the connected devices over and secure the connection by screwing the connection plate to both
devices, as shown below.
Figure 2. AI-EXP32 secured to a USB-2416-4AO
5. Connect the external power supply to the power input port of the USB-2416 Series device, and then plug it
into an AC outlet.
By connecting external power to the device before connecting the USB cable to the computer, the USB-
2416- Series device informs the host computer upon connection of the USB cable that the device requires
minimum power from the computer's USB port.
6. Connect the USB cable from the USB-2416 Series device to the host computer's USB port.
Connect to a USB 2.0 high speed hub to achieve the highest transfer rate (480 Mbps).
When connected to a USB 1.1 full-speed port, the transfer rate is limited to 12 Mbps.
Connecting the device for I/O operations
User connectors
The following table lists the device connectors and compatible hardware for the AI-EXP32.
User connectors and hardware
Connector type  Six banks of removable screw-terminal blocks
 37-pin male DSUB connector (for connection to parent device)
Wire gauge range (screw terminals) 16 AWG to 30 AWG