To connect the DAQ to one of the PCs (PCI), a null-modem cable is needed. A null-modem cable is a special type of serial cable that allows data transfer between two devices by crossing the transmit and receive lines. It is commonly used for connecting two computers or computer peripherals directly.
To connect the oscilloscope to the other PC (PC2), a straight cable with one male to female converter is needed. The straight cable allows for a direct connection between the oscilloscope and the PC. The male to female converter is required to ensure compatibility between the cable and the respective ports on the devices.
To connect the Function generator to the other serial port of the oscilloscope, a null-modem cable with one male to female converter is needed. This configuration allows for data transfer and communication between the Function generator and the oscilloscope.
Finally, to connect the two PCs together using the remaining serial ports, a null-modem cable with one male to female converter is needed. This setup enables data exchange and communication between the two PCs.
In summary:
DAQ to PCI PC: Null-modem cable
Oscilloscope to PC2: Straight cable with one male to female converter
Function generator to oscilloscope: Null-modem cable with one male to female converter
Connecting the two PCs together: Null-modem cable with one male to female converter
Please note that the answers provided are based on the information given in the question and assume a standard configuration for the devices mentioned. It's always important to consult the device manuals or documentation for specific instructions regarding connectivity and cable requirements.