65
6 Appendix B: Status LEDs
Enclosed Ethernet radios have PWR, XMIT/TX and MODE/RCV/RX LEDs.
The PWR LED shows radio power and link state. A
red
PWR LED indicates that the radio
has power but is not linked. A
PWR LED indicates that the radio has power and is
green
linked. Radios configured to Point to Multipoint Master radio always show a
PWR
green
LED. All other radio configurations show a
red
PWR LED upon power up until the radio
link is established. When the link is established the PWR LED becomes
. If the link
green
is dropped, then the PWR LED returns to
red
.
The XMIT/TX LED flashes
red
every time the radio transmits data. Depending on the
specific model and age of the radio, this LED may say “XMIT” or “TX”. The functionality
remains the same across all different names.
The MODE/RCV/RX LED flashes
when the radio is receiving and decoding an RF
green
packet. Depending on the specific model and age of the radio, this LED may show
“MODE”, “RCV” or “RX”. The functionality remains the same across all different names.
Because of the high speed of the embedded microprocessor and communications, all
status LEDs can turn on and off very quickly. In some cases the LEDs turn on and off so
quickly that the LEDs appear to be on but dimly lit. This behaviour indicates that events
are happening in very quick succession. A good example is the TX LED changing intensity
from dim
red
to bright
red
to off. This indicates many small packets in quick succession
(dim
red
), followed by many large packets with almost continuous transmissions (bright
red
), then no transmissions (off).
6.1 Status LEDs for Xeta9x-E (Eman)
The Xeta9x-E, Eman, has all the LEDs that enclosed Ethernet radios have. In
addition to those listed above, the Xeta9x-E has a UP OK LED. The UP OK LED indicates
that the microprocessor is running.
Appendix B
Содержание Xeta9-E
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