Dish Network 112182 - Manual (Page 106)

Page 100
Chapter 4
Installation Instructions
One DISH 500 with a DishPro Twin LNBF, One DISH 300 with a
DishPro Single LNBF, and One DP21 Switch
This diagram leaves out grounding to be clear. Make sure you
ground the system per the National Electrical Code (NEC) and all
local electrical codes.
Note : This setup supports only one receiver from three satellite locations and
the other receiver from only two satellite locations.