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DIAGNOSTIC LED(S)
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LED
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Color
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Status
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Condition
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ALRT
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Amber
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On
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Power-on self diagnostic test is running; reset button has been pressed
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ALRT
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Amber
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Blinking
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Diagnostic test has failed or unit placed in firmware download mode
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ALRT
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Amber
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Off
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Unit has passed diagnostic tests and is working properly
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PWR
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Green
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On
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Power is on
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PWR
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Green
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Off
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Power is off
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ISDN
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Green
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On
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ISDN interface and data channel signaling are synchronized
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ISDN
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Green
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Blinking
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Interface synchronization is being attempted or ISDN data channel parameters have changed
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ISDN
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Green
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Off
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ISDN interface and data channel signaling are not synchronized
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B1/B2
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Green
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On
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Data call in progress
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B1/B2
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Green
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Blinking
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Data call in dialing state
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B1/B2
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Amber
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On
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Voice call in progress
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B1/B2
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Amber
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Blinking
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Voice call in dialing state
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TX
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Green
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Blinking
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Data is being transmitted to the Ethernet LAN from the ISDN LAN Modem
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TX
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Green
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Off
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Data is not being transmitted
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COL
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Amber
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Blinking
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Collisions are detected on Ethernet LAN
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COL
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Amber
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Off
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Collisions are not detected on Ethernet LAN
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P1
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Green
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On
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Ethernet link integrity signal detected; port 1 is operating normally
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P1
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Green
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Blinking
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Port 1 is receiving data
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P1
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Green
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Off
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Ethernet link integrity signal not detected on port 1
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P2
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Green
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On
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Ethernet link integrity signal detected; port 2 is operating normally
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P2
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Green
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Blinking
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Port 2 is receiving data
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P2
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Green
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Off
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Ethernet link integrity signal not detected on port 2
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P3
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Green
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On
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Ethernet link integrity signal detected; port 3 is operating normally
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P3
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Green
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Blinking
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Port 3 is receiving data
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P3
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Green
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Off
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Ethernet link integrity signal not detected on port 3
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P4
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Green
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On
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Ethernet link integrity signal detected; port 4 is operating normally
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P4
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Green
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Blinking
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Port 4 is receiving data
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P4
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Green
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Off
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Ethernet link integrity signal not detected on port 4
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