S90-010 CS (APR 08) FRICK
QUANTUM™ COMPRESSOR CONTROL PANEL
Page 10 COMMUNICATIONS SETUP
• Reference the drawing of the Quantum™
Main Board in this manual to identify wiring
and jumpering locations for Com-2.
• Reference the Main Board Communications
Com-2 section in this manual for the correct
jumpering of RS-232, RS-422, or RS-485.
0191 Send a single command to read data from
this Quantum™ using its ID.
0191 Check if you received a data response at
your device.
0191 Troubleshooting when you don’t receive a
data response:
• Check if Com-2 on the Operating Status
screen is showing ACTIVE or OFF.
• ACTIVE is shown only when the Quantum™
understands it is receiving a properly
composed message to itself.
• Check that the RX2 I/O communication
activity lamp on the Quantum™ Main
Processor Board is blinking as it receives the
instruction from your device.
• A steady lit RX2 LED or one that isn’t
lighting, are signs of improper wiring.
• If the RX2 LED is properly blinking, then
check if the TX2 LED is blinking in response.
• If the TX2 is not blinking then check the
communication protocol setup at the panel,
the panel’s ID and the Com-2 baud rate
setting.
• If the TX2 is blinking, then check that the
Com-2 communication jumpers are correct.
• If you are sure that the wiring and
Quantum™ setup is correct, then select the
[Show Comms] key from the Service
Screen to see what is being received and
transmitted from Com-2.
Note: A useful tool for troubleshooting is Windows
HyperTerminal. Using HyperTerminal can help you
determine if you are wired OK. Reference the
HyperTerminal Setup section in this manual.
0191 If you properly receive data and you need
to communicate to more than one panel, then
setup and wire to another panel. Reference the
wiring diagram drawings in the back of this
manual. Send a single command to read data
from this Quantum™ using it’s ID and
troubleshoot as above, if necessary. To prevent
noise feedback which is possible when
communicating over a long distance, only the last
panel should have the termination for long
communications lines jumpered.
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