Comtech-ef-data SNM-1000 Uživatelský manuál Strana 44

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SNM-1000 Node Control Modem Revision 3
Operation MN/SNM1000.IOM
3–2
3.1.1 LED Indicators
In addition to the LCD, the LED’s provides the modem status. The DAC board controls
LEDs 6 through 10. The LED’s support three states:
ON
OFF
Flashing
Table 3-1. SNM-1000 Front Panel Indicators
LED Color Description
POWER ON Green Power is applied to the modem.
FAULT Red A fault condition exists.
TEST MODE Yellow Flashes when the unit is in a test configuration.
TRANSMITTER ON Green Transmitter is currently ON.
Indicates the actual condition of the transmitter, as opposed to the
programmed condition.
In control mode, the indicator blinks since the transmitter is operating in
the burst mode.
In traffic mode, the indicator is solid green.
CARRIER DETECT Green Decoder is locked.
NODE Green Indicates the node has been enabled or disabled by the NMS. It is ON
if the node is enabled, OFF if the node is disabled.
NMS Green (OFF) Node did not receive timing or ACKNOWLEDGE messages
from the NMS.
(FLASHING) Node received timing message from the NMS, but no
ACKNOWLEDGE message was received.
(ON) Node received timing and ACKNOWLEDGE from the NMS.
CHANNEL Green (OFF) Not used on SNM-1000.
EFBUS1 Green (OFF) Indicates operational status of externally connected traffic
modems.
(ON) OK
(FLASHING) Fault indication.
EFBUS2 Green (OFF) Indicates operational status of externally connected traffic
modems.
(ON) OK
(FLASHING) Fault indication.
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