CHAPTER 4: USING THE LANVIEW LEDS
4.2T1/FT1 PORT LEDS
The following LEDs indicate the status of the T1/FT1 port.
LOS (Loss of Signal)
•On - Indicates a loss of link at the T1/FT1 port. This condition occurs when the T1/FT1 port receives 192 consecutive 0’s, this should not happen under normal conditions. Check the T1 port cable.
•Off - Signal OK.
TST (Test)
•On - Indicates that the T1/FT1 port is in the test mode.
•Off - Indicates that the T1/FT1 port is in the
YEL (Yellow Alarm)
•On - Indicates that the remote bridge has lost T1 Frame synchronization. Check the remote bridge, T1 port cable, or T1 Frame Type setting.
•Off - Synchronization OK.
RED (Red Alarm)
•On - Indicates that the bridge has lost T1 Frame synchronization with the remote bridge. Check the remote bridge, T1 port cable, or T1 Frame Type setting.
•Off - Synchronization OK.
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