Crestron cnmsx User Manual

Integrated Control System 

Crestron CNMSX

NOTE:  If an optional CNX Ethernet expansion card is installed into the CNMSX, 
communications can be obtained over TCP/IP. The Operations & Installation Guide 
for the card explains how to load the required IP Table that contains the addresses of 
the Ethernet devices and set up the control system for Ethernet communications. 
Refer to the CNXENET or CNXENET+ Operations & Installation Guide (latest 
revision of Doc. 8129 or 8153, respectively) for further information. 

Before attempting to upload the program files into the CNMSX, it is necessary to first 
establish communication between the CNMSX and a PC. There are two ways of 
communicating with the CNMSX, either via the COMPUTER port (RS-232 serial 
communications) or via Ethernet if the optional CNX Ethernet expansion card is 
installed. Prior to completing the following steps, be sure the communication cable is 
properly connected as described in "Loading Crestron Control Software" on page 18.  

1.  Make sure that no programs accessing the COM port of the PC are 

running.  

2. Select 

Start | Programs | Crestron | SIMPL Windows to start SIMPL 

Windows.  

3.  SIMPL Windows responds with an opening splash screen and may 

display the “What do you want to do?” dialog box. If so, close the 
dialog box.  

4.  As illustrated after this step, select Tools | Viewport to open the 

“Crestron Viewport” dialog box.  

 

5. From 

the 

Setup menu, verify that Auto Baud Search is checked; refer 

to illustration below.  

 

6.  While the Viewport is displayed, select Setup | Communications 

settings (alternatively, depress Alt+D) to open the “Port Settings” 
dialog box. Refer to the illustration on the next page.  

•  Integrated Control System:  CNMSX