More optical fiber cables are being installed to upgrade subscriber cable networks,
making maintenance an increasingly-important issue.
For preventive maintenance, deterioration of optical fiber cables must be monitored
before it affects communications. If a cable is broken, the fault must be detected
The Option 02 Monitoring Function incorporates these functions into the MW9070B
Optical Time Domain Reflectometer (OTDR) and eliminates the need for a personal
computer to control the OTDR; optical fiber cables can be monitored automatically for
faults, and when a fault is detected, the OTDR sounds a local alarm, or notifies a
?Optical Fiber Fault Point Detection Function
Various functions including: quick scan (for quickly determining whether there is a
fault), normal scan (for determining fault magnitude and location by checking entire
optical fiber cable), and near-end scan (for determining fault magnitude and location in
near-end dead zone), can be selected according to the application.
This function performs monitoring automatically according to a schedule. The easy-touse
scheduler function does not require a personal computer (PC) either to control the
OTDR, or to create a monitoring program.
The OTDR can be controlled from a remote PC via a telephone line (using modem*),
or directly via the RS-232C interface. When an alarm occurs, the OTDR sends the
alarm information to the PC.
?Alarm Generator Control Function
When a fault is detected, the OTDR sends a alarm control signal from the parallel port.
?Optical Switch Control Function
The OTDR sends a signal to control the optical switch from the parallel port.
*Only model specified in ordering information can be used.