Can I use the extender module (DV100-011) with the DA100 Quick Start package?

Yes. This is possible both with the RS-232C and Ethernet models. Aside from the DA100 Quick Start package, this requires the extender base (DV100-012), expansion cable (DV200-XXX), and input module. The thinking is the same as the DA100 standalone model. After making connections, you must reconfigure the system. Note that the maximum number of input channels is the DA100 system total of 30.