Numerical aperture

· One end of the cable is connected at Tx2 and the other end is connected in the NA unit.

· No other connections.

· In the NA unit for various heights note down the vertical and horizontal diameter of the light.

PC to PC communication:

· Startàprogramsàaccessoriesàcommunicationsàhyper terminalà hyper terminal (2)

· Give some name and OK

· Connect using : COM2

· Connect BUFINàCOM1

· BUFOUTàTTL in

· Detector to laser

· TTL out to COM2

· Then type the data.

File transfer:

Sending: transferàsend fileàbrowse and choose a fileàhave Kermit protocolàsend

Receiving: transferàreceive fileàbrowse to select location to store the fileà have Kermit protocolàreceive