According to the installation manual for the 1000.2:
The DPP 1000.2 LNBF can be connected to provide
119°W, 110°W and 129°W satellite signals to a DISH
Pro Plus 44 switch. Refer to the instructions provided
with the switch for additional considerations and
instructions. Signal for a fourth satellite location must
be provided directly from the fourth satellite
location’s LNBF to the DPP switch. The LNB IN port
on the DPP 1000.2 LNBF must not be connected. In
this installation, the DPP 1000.2 LNBF defaults to the
following settings:
• PORT 1 - 119°W
• PORT 2 - 110°W
• PORT 3 - 129°W
• LNB IN - Disabled when DPP 1000.2 LNBF is
connected to a switch. When connected to a
switch, any LNBF connected to the LNB IN port
must be disconnected from the DPP 1000.2 LNBF
and connected directly to the switch.
Note: The DPP 1000.2 LNBF is NOT compatible with DISH Pro switches in any installation.