GW Instek AFG-100/200 Series Quick Start Guide - Manual (Page 6)

Installing the AFG-125/225 Module
The AFG-125/225 modules are installed into the area
that is left between both of the DS2-FH1 housings.
1. Slide the module into the slot that was created
between the DS2-FH1 housings. The front of the
module should be facing forwards.
2. Make sure the module is secure. The module will
click into place when it is inserted properly.
3. Make sure the GDS-2000A is turned off before
proceeding.
4. Connect one end of the GTL-254 USB cable to the
rear panel USB Device port and to the USB Host
port. Connect the other end to the Device port on
the AFG-125/225, as shown below.
5. Turn the power back on. The AFG-125/225 will
now be accessible in the Option menu.