Installation guide

Crestron CNX-B2/B4/B6/B8/B12 Single Gang Keypads
Operations & Installation Guide - DOC. 8173A Single Gang Keypads: CNX-B2/B4/B6/B8/B12 • 25
Setup | Communications Settings Command
4. Select RS-232 as the connection type. Verify that an available
COM port (COM 1 is shown after this step) is selected, and
that all communication parameters and necessary options
from the “Port Settings” window are selected as shown after
this step. Click the OK button to save the settings and close
the window.