Crestron
RACK2
2-Series Card Cage System
Network Analyzer
To assist with troubleshooting, this unit contains Crestron’s patent-pending network
analyzer to continuously monitor the integrity of the Cresnet network for wiring
faults and marginal system performance or other network errors. For more
information on how to use the network analyzer, refer to the SIMPL Windows help
file and use the index to search for "Network Analyzer".
Battery Replacement
A Lithium battery is used to power the system clock within the CPU2. Under normal
conditions, it will last for approximately 10 years. In the event that the clock fails,
only an authorized technician should replace it. Refer to the following caution
statement.
CAUTION:
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the manufacturer.
Dispose of used batteries according to the manufacturer's instructions.
CPU2 and NET2 Replacement
Refer to the latest version of Crestron CPU2 Rack2 Processor Card Installation
Guide (Doc. 5961) for CPU2 replacement information.
Refer to the latest version of Crestron NET2 Cresnet Hub Card Installation Guide
(Doc. 5960) for NET2 replacement information.
Serial Communication Difficulties with Other
Devices Connected to the Control System
Passthrough Mode
Passthrough mode allows data to pass directly from the COMPUTER port to the
selected COM port on a Cresnet or Ethernet device (such as ST-COM or CEN-
COM), effectively “passing through” the control system. This makes it possible to
determine if the communication problem is in the control system or in the device
itself. While passthrough mode is running, the program currently in memory is
suspended and will not execute. When passthrough mode is exited, the program
resumes operation. The TX and RX LEDs for the given port illuminate when in
passthrough mode.
Entering passthrough mode for one of the internal COM ports reinitializes it, which
clears the data for that port. The COM analyzer also functions while the unit is in
passthrough mode.
Passthrough mode is accessed from the Crestron Viewport by selecting
Functions |
Enter Passthrough Mode (CNX / 2-Series only)
. The window, shown after this
paragraph, is used to select the port configuration for passthrough mode. For more
information, refer to the Viewport Help files.
Operation Guide – DOC. 5958
2-Series Card Cage System: RACK2
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