Digital microwave stations can be classified as follows;
1. Pivotal stations - A station located in the backbone link to communicate with other stations in various directions.
2. Add/drop relay stations - A station located in the middle of the link to add/drop tributaries and communicate with the two stations in two directions of the backbone link.
3. Relay stations - A station located in the middle of the link without adding/dropping voice channels.
4. Terminal stations - A station located at either end of the link or at the endpoint of a tributary link.
