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Chapter 4 Troubleshooting
IP-900 Series
118
The following table summarizes the LED display detail.
Table 4-4 Alarm LED Detail
LED Description
PWR Goes on when the device is powered on.
RDY
Blinks in green when the device ready for operation and stays on when the device runs in
operation state.
This LED also blinks in orange when the device is ready for maintenance mode, which
can be entered by turning on the power while holding down the MNT button, and stays on
in orange when the device runs in maintenance mode.
IN DWN
Remains off during normal operation, and goes on in orange when input signals are
interrupted. LED also blinks when DVB-ASI is selected with the communication
line-dependent setting of the decoder or encoder under the non-installation of option boards.
It blinks for 10 seconds also when the statistics input error counter is incremented.
ALM
Alarm LED, which blinks or goes on when a device alarm occurs. For conditions of
whether it blinks or goes on, see Table 4-3, "Alarm Code List."
DEC
Goes on in green during decoding. This LED stays off when decoding is not being performed.
It blinks in green when a decoding error occurs. (*1)
OPT Lights in green when the HD upgrade option is installed. (*2)
*1: Only for the IP-900D/IP-900IID
*2: Only for the IP-900E