GW Instek GDS-2000A series Quick start guide for DS2-FGN - Manual (Page 4)

Installing the Function Generator
The function generator modules need to be installed
into the module slots on the rear panel.
Do not insert or remove the modules with the power
on.
1. Slide the tabs holding the
module cover to the unlock
position and then remove.
2. Install the optional module. Be sure to make sure
that the groves on the module line-up to the slots
in the module bay.
3. Slide the locking mechanisms back to the locked
position.
4. Turn on the GDS-2000A.
5. The GDS-2000A is now ready to operate