The last bit of the data frame enters the device and starts timing.

The first bit of the data frame enters the device and starts timing.

Reflects the performance of network devices. Generally, it is not compared with the bit forwarding device.

The first bit of the data frame appears at the output port of the device and stops timing.

The pulse width of emitted optical pulses varies according to monitoring modes, and affects the detection distance and measurement precision. A greater pulse width provides a larger dynamic range, longer detection distance and better measurement precision.

When the pulse width increases, the light emitting time increases and consequently a larger energy is obtained. This means that a larger dynamic range can be acquired but also larger dead zones will result.

Measurement is performed multiple times within the detection time. The average value is obtained based on the measurement results to improve the measurement precision. The actual duration from the time when a detection event starts to the time when the detection results are returned will be longer than the Detection time.

The total fiber loss will affect the detection distance and the dynamic range is fixed for the same detection mode. Therefore, a larger total fiber loss indicates a smaller detection distance.

Configuration Data Analysis

Meter Test

Replacement

Loopback

OSC

OCh

OMS

OTS