Advantech BB-VESR9 Series, User Manual, Page: 11 / 59

VESR9xx Serial Servers
5
SERIAL PORT LEDS
Model VESR901 serial server features one serial port.
Model VESR902D features two serial ports. Each serial port has an
associated LED. Serial Port LEDs blink (green) when data is being
transmitted or received on the serial port. When the LED is On, it
indicates the serial port is open.
LED INDICATORS (VESR92X)
Model VESR922T Serial Server has four LED indicators: E1 and E2
LEDs , a Ready LED and two Serial Port LEDs .
LEDs on VESR922T
E1 and E2 LEDs -
The E1 and E2 LEDs illuminate (green) if the
Ethernet connection is operating in 100BaseTX mode. The LEDs are off
if the mode is 10BaseT. When the LED is blinking it indicates that there
is data traffic on the Ethernet link.
Ready LED -
The Ready LED (green) blinks once per second if the
system is operating correctly. If the LED is off, it indicates the system is
not operating correctly.
Serial Port LEDs
VESR922T features two serial ports. Each serial
port has an associated LED. Serial Port LEDs blink (green) when data is
being transmitted or received on the serial port. When the LED is On, it
indicates the serial port is open.