Variable Optical Attenuator Board

In this user interface, you can set the maximum or minimum attenuation rate for optical ports and path use status. You can set or query parameters related to working wavelengths, including fixed band and the parity of working band.

Parameters

Field	Value	Description
Optical Interface/Channel	Equipment that supports the master and slave shelf management: optical NE name-NE name-shelf ID(shelf name)-slot number-board name-port number(port name) Equipment that does not support the master and slave shelf management: optical NE name-NE name-slot number-board name-port number(port name)	Displays the optical interface.
Optical Interface Name	For example: IN1/OUT1	Displays default names. Do not modify this field.
Optical Interface Attenuation Ratio (dB)	0-40	Sets the attenuation ratio of the optical port.
Max. Attenuation Ratio (dB)	For example: 40	Displays the maximum attenuation ratio. If the actual attenuation ratio is greater than this value, the output power is so small that it may cause decrease of the optical signal noise ratio (OSNR) at the receive end.
Min. Attenuation Ratio (dB)	For example: 5	Displays the minimum attenuation ratio. If the actual attenuation ratio is smaller than this value, the output power is so large that it may cause decrease of the OSNR at the receive end.
Path Use Status	Used, Unused Default: Used	Sets whether the path is being used.
Actual Band	C	Displays the current working band of the path. Currently only C band is supported.
Configure Band	C	Configures the working band of the port.
Threshold of Input Power Loss (dBm)	For example: -50	Input power that is smaller than this value cannot be determined.
Actual Working Band Parity	Even, Odd	Displays the parity of the current working band of the port. Currently only even band is supported.
Configure Working Band Parity	Even, Odd	Configures the parity of the working band of the port. Currently only even band is supported.