Crestron cnrackx-dp User Manual

CNX Dual Processor Modular Control System  

Crestron CNRACKX-DP

 

8. Select 

Diagnostics | Check Operating System Version (alternatively, 

depress F5) from the Viewport. The Viewport may display a window 
as it scans various baud rates. Eventually, a message should appear in 
the Incoming section showing a version number. Such a response 
indicates that communications have been established. If a No 
Communications with Rack error message opens, proceed to 

 below. If the baud rate of the 

CNRACKX-DP was something other than 38400, the software 
automatically adjusts the baud rate to 38400.  

9.  If communications have not been obtained with both processors, refer 

to the first note at the beginning of this procedure, electronically switch 
active processors, and repeat this procedure. 

NOTE:  In order for the CNRACKX-DP to be fail-safe operational, communication 
must be established with both CNXCPUs. Make sure that the processor that has not 
established communications is the active processor. To switch processors from the 
Viewport, select Diagnostics | Switch Processors (CNRACKX-DP). To switch 
processors from the front panel default LCD display, press the DP button then CPU 
and the CNRACKX-DP will reset and make the other CNXCPU active. 

NOTE:  This section covers troubleshooting communications of the CNRACKX-DP 
via RS-232 to the COMPUTER port. For troubleshooting Ethernet communications 
of the CNRACKX-DP with optional CNXENET+ Ethernet Expansion Card, refer to 
the CNXENET+ Operations & Installation Guide (latest revision of Doc. 8153) for 
further information. 

•  CNX Dual Processor Modular Control System: CNRACKX-DP