Crestron CPU2 Dokumentacja Strona 15

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Crestron RACK2 2-Series Card Cage System
Example of External Power Connections for the NET2 Hub – Using an Additional Power
Supply for a Group of Four Mini Hub Connectors
NET
2
CPU
2
A
B
C
D
EF
G
H
P
W
R
NET
24 Y Z G
24 Y Z G
24 Y Z G
24 Y Z G
24 Y Z G
24 Y Z G
24 Y Z G
24 Y Z G
24 Y Z G
G
INT
EXT
24 VDC
GND
From Cresnet
Power Supply
CNPWS-75
Remove Jumper and Connect External
Power Supply 24 VDC to EXT and
Ground to G
24 VDC
GND
From Cresnet
Power Supply
CNPWS-75
Reset Buttons
Two reset buttons are provided on the front panel of the RACK2.
HW-R
Pressing this button initiates system hardware reset. (Same effect as disconnecting
and reconnecting power.)
SW-R
Pressing this button in combination with the HW-R button performs a system restart
without loading the program (refer to “Troubleshooting Communications” on page
23). Pressing it alone momentarily while the system is running restarts the program.
RACK2 Indicators
There are 23 LED indicators on the front panel of the RACK2 and 10 LED indicators
on the rear panel.
PWR
This LED illuminates when the RACK2 receives power from the external power
supply (sold separately).
NET
This LED illuminates when the CPU is processing data or communicating with
system hardware. Examples include: a button pressed at the local or a network panel,
data being sent out of either serial port.
ERR
This LED illuminates when one or more error conditions are detected by CPU2. This
may be the result of hardware or software failure, hardware incompatibility with
software definitions, a programming error, or a connectivity problem.
Operation Guide – DOC. 5958 2-Series Card Cage System: RACK2 11
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