User's Manual

USING FRONT PANEL MODES
©
©©
© RF Innovations Pty Ltd, 1998 Page: 13
234839, Revision 2.2
LED NAME MODE 1
N
ETWORK
L
INK
•
Green - Modem has locked onto a signal from the same network.
•
Red - Modem has just lost link to the operational network and will
drop out if the connection is not established within the required time
(as set in software).
C
ARRIER
D
ETECT
•
Green - An RF carrier has been detected and contains valid
information.
•
Red - An RF carrier has been detected and contains invalid
information.
T
RANSMIT
D
ATA
• RS232 Data is being moved out the RS232 port through either the
main or auxiliary port (to the terminal).
R
ECEIVE
D
ATA
•
RS232 Data is being received from the RS232 port from either the
main or auxiliary port (from the terminal).
O
NLINE
•
Green - Data is being received from a remote modem that contains the
receiving modems address.
•
Red - A data packet has been lost or has not been able to be sent to
the remote modem (automatic ARQ function fail).
P
OWER
•
Green - This indicator will flash on and off at one-second intervals to
indicate the Radio internal functions are OK.
•
Red - This indicator will flash when the Modem has serious faults,
such as channel synthesiser out of lock, low power or power supply
problems, or software CRC errors. The user Fault event log can be
used to find the cause of any intermittent problems (AUX port
configuration).
Table 5-1 LED Indicators Mode 1
Mode 2
When the RFI-9256 is in Mode 2 the display changes to a LED bar graph that indicates the RSSI
(Received Signal Strength Indicator) value, the display has a resolution of 5dB. Intermediate steps are
indicated by a RED display and whole numbers by a GREEN display i.e., the bottom two LEDs on green
would indicate a received signal of -100dBm while a display of RED on the –100dBm level would indicate
-105dBm. Table 5-2 below shows the scale RSSI according to the LEDs. Details are also shown on the
front panel under the heading Mode 2. -60dBm is the strongest signal, and -110dBm the weakest. Any
signal above -90dBm will result in a very strong signal, with high throughput. Weaker strengths will still
transmit, but throughput may be affected.
LED NAME MODE 2 (dBm)
N
ETWORK
L
INK
-60
C
ARRIER
D
ETECT
-70
T
RANSMIT
D
ATA
-80
R
ECEIVE
D
ATA
-90
O
NLINE
-100
P
OWER
-110
Table 5-2 LED Indicators Mode2