OPTICAL TIME-DOMAIN REFLECTOMETER (OTDR) WITH INTEGRATED, RETRACTABLE LAUNCH CABLE

摘要

The advantages of such a device are: the ability to conveniently hold, place, or hang the instrument as a single unit while in use; the ability to place the instrument into its carry case without disconnecting the launch cable, thus reducing the number of connection, cleaning, and inspection steps that must be performed each time the instrument is removed from its carry case for use and reducing wear on the OTDR test port and launch cable (OTDR end) connectors; the ability to remove and replace Launch Cable module in the field without special tools should it become damaged or if the user wants a different connector type; the ability to use an external device to analyse and format test results and provide additional networking functions; the ability to move processing functions to the external device, which in turn allows the use of lower power, lower cost processors in the OTDR to reduce cost and increase battery life. The present invention also includes a special embodiment in which the OTDR module is physically located within the Launch Cable module so that the overall device becomes more compact, and more resistant to drops and other external impacts.