NEC Aspire S Manual page 112

Section 4: Telephones and Optional Equipment
2.
4-6 ◆ Section 4: Telephones and Optional Equipment
The back of the 2PGDAD module has two key-hole type openings. Place the 2PGDAD module
over the two screws and slide it down or over (depending on the positioning) to lock it in place.
Protruding
screws
Figure 4-8: WALL MOUNTING THE 2PGDAD MODULE
Protruding
screws
Aspire S Hardware Manual