Maintenance and Troubleshooting
4-7
DS7
Red
Link
On when Ethernet interface is in the link-up condition.
Flashes when the Ethernet chip detects transmits or
receives activity.
DS8
Red
Speed
On when the Ethernet interface is at 100Mbps. Off
when the Ethernet interface is at 10Mbps.
DS9
Red
Duplex
On when the Ethernet interface is at full duplex. Off
when the Ethernet interface is at half-duplex.
DS10
Red
Collision
Flashes when the Ethernet interface detects a collision
in half-duplex.
DS11
Red
+5V
On when +5V power supply is functioning.
DS12
Red
+3.3V
On when +3.3V power supply is functioning.
DS13
Red
+2.5V
On when +2.5V power supply is functioning.
Product Board
LED Color
Function
Operation
DS1
Green
+5V
On when +5V power supply is functioning.
DS2
Green
+3.3V
On when +3.3V power supply is functioning.
DS3
Yellow
COM1 TxD
Flashes when transmitting serial information.
DS4
Yellow
COM1 RxD
Flashes when receiving serial information.
Temp/Light Sensor
LED Color
Function
Operation
DS1
Green
+5V
On when +5V power supply is functioning.
DS2
Red
Run
A steady flash indicates the controller is running
correctly. Normal flash rate is about once a second.
Flashes faster when the sensor is transmitting
temperature or light information.
Modules and Drivers
The module and driver board are a single functional unit. The LED power supplies
are identified as assemblies. Each power supply unit controls two modules; a power
supply assembly (two power supply units) controls four.
To remove a module, complete the following steps:
Tools required:
1
/
8
" hex wrench
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