The detect uni-direction command configures the unidirectional detection on the SA module.
The undo detect uni-direction command restores to the default detection mode, namely, bidirectional detection.
By default, the SA module works in bidirectional detection mode.
SA detection falls into unidirectional detection and bidirectional detection. If the device is deployed in unidirectional mode, use the detect uni-direction command to configure the unidirectional detection mode of the SA module.