Devicemaster leds, Tx/rx leds, Network and device leds – Comtrol Hub DeviceMaster User Manual
Page 169: Tx/rx leds network and device leds, Leds, Devicemaster

DeviceMaster Installation and Configuration Guide: 2000594 Rev. A
Troubleshooting and Technical Support - 169
Troubleshooting and Technical Support
DeviceMaster LEDs
The DeviceMaster has network and port LEDs to indicate status. This subsection
discusses:
•
•
TX/RX LEDs
This subsection discusses RX and TX LEDs on the following products:
•
DB9: DeviceMaster 4-port and 8-port models and the DeviceMaster Serial
Hub 16-port.
•
RJ45: DeviceMaster RTS 16-port and 32-port models and the DeviceMaster
PRO 16-port.
Note: The DeviceMaster 1-port and 2-port models do not have TX/RX LEDs.
The RX (yellow) and TX (green) LEDs function accordingly when the cable is
attached properly to a serial device.
•
After power cycling the DeviceMaster, the RX/TX LEDs are off.
•
The LEDs do not function as described until the port has been opened by an
application. You can use Test Terminal to open a port or ports if you want to
test a port or ports (
Testing Ports Using Test Terminal
•
If the port is configured for RS-232/422 mode:
-
RX LEDs (yellow) are lit
-
TX LEDs (green) are lit when as the data exits the port
•
If the port is configured for RS-485 mode:
-
RX LEDs (yellow) are lit while receiving
-
TX LEDs (green) are lit during active data transmission
Network and Device
LEDs
The LEDs indicate that the default DeviceMaster application, SocketServer is
running or after driver installation, that the NS-Link driver loads. If you have
loaded PortVision DX, you can check the DeviceMaster status on-line.
Ports
Model
Network LEDs
1
DeviceMaster
RTS
•
The Status LED on the front of the unit is lit, which indicates that
it has power and has completed the boot cycle.
Note: The Status LED flashes while booting and it takes
approximately 15 seconds for the bootloader to complete
the cycle. When the Bootloader completes the cycle, the
LED has a solid, steady light that blinks approximately
every 10 seconds.
•
The red Link Act LED is lit, which indicates a working Ethernet
connection.
•
If the red Duplex LED is lit, it indicates full-duplex activity.
•
If the red 100 LED is lit, it indicates a working 100 MB Ethernet
connection (100 MB network, only).