PID IPA Management

The system provides the intelligent power adjustment (IPA) function for PID boards. When there is a fiber break on the line, the upstream PID board is shut down to prevent injuries to human body. After the system is recovered, the PID board resumes normal operation. This topic describes how to configure PID IPA attributes.

Navigation Path

In the NE Explorer, select the PID board and choose Configuration > IPA Management from the Function Tree.

Parameters

Parameter	Value	Description
Interface	For example: IN/OUT-1	Displays the optical port for which IPA is configured.
IPA Status	Enabled, Disabled	This parameter specifies whether to start the IPA function immediately in case of a fiber cut, equipment performance deterioration, or fiber disconnection from a PID board. When the parameter is set to Enabled, the PID IPA starts immediately in case of any of above-mentioned conditions. When the parameter is set to Disabled, the PID IPA function is invalid. It is recommended to retain the default value.
Restart Mode	Automatic, Manual	This parameter indicates the restart mode of the laser on the PID board participating in IPA. When Restart Mode is set to Automatic, the PID board automatically opens its laser without involving human intervention after the fiber is repaired. When Restart Mode is set to Manual, IPA must be started manually so that it can open the laser on the PID board after the fiber is repaired. Automatic The PID board restarts the laser at an interval of the specified Off Period (s) to test whether the line is restored. During the testing, laser pulses with low optical power are transmitted on the line. If the line functions properly, the laser keeps open. If the line malfunctions, the IPA shuts down the laser after a certain period of time. The operation is repeated until the line becomes normal. Manual The Restart IPA Manually button is valid only when Restart Mode is set to Manual. Click Restart IPA Manually to turn on the laser and test whether the line is normal. During the testing, laser pulses with low optical power are transmitted on the line. If the line functions properly, the laser keeps open. If the line malfunctions, the IPA shuts down the laser after a certain period of time.
Off Period (s)	100 to 300	This parameter specifies the time period in which the laser on a PID board is shut down during detection of laser pulses.When the Reset Mode is set to Manual, the turn-off duration is fixed at 100s.
Laser Status	ON, OFF	This parameter shows the laser status of a PID board.