Just want to share my experience if you are encountering the same. After much drama (detailed below), finally I got 202L set up for 932L and 5020L cameras. My question now is that what happens when my HDD is full? Please confirm that my guess of an overwrite of the oldest recordings is correct.
Drama 1) 202L could not recognize 932L: This is due to my firmware version on the 202L being outdated. It is v1.01 out of box, and v1.02 is required for recognition. Log on to mydlink, select 202L, tab support, download v1.02 firmware which is a "bin" file; tab my devices, find your 202L, go setting, connect then go NVR info, go maintenance, go firmware update, then browse for the bin file and proceed as instructed
Drama 2) cannot send alert email to gmail account: The default port number is 25, and for gmail it is 587. go to NVR advanced setting as described above, then select setup, then event setup. save the correct port number then test
Hope this saves you from too much trouble installing.