EXFO FTB-500 (Window XP) - Manual (Page 387)

COM Properties and Events
FTB-500 377
Properties
Properties
Write
Description With this method you can send a program
message (single command or compound of
commands) to the device input buffer.
Syntax object.Write (Message)
Parameter(s) Message: Required. A string value corresponding
to the program message to be sent.
Possible error(s) Timeout: This error will occur if the operation
could not be completed within the allowed
delay. For information on timeout setting, see
Initialize on page 381.