AVT MAGIC AC1 XIP/XIP RM, Руководство по аппаратному и программному обеспечению

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PAGE 99
W i n d o w s P C S o f t w a r e
– Overheated : The system sets this alarm, if the system temperature is
higher than 57°C. Please disconnect the system from electricity or cool
down the ambient air temperature.
• Under
Application alarms
all possible application alarms are displayed.
A red LED signals a currently existing alarm. It is also displayed how often
the alarm occurs since the unit has been switched on. You can reset the
alarm counter by pressing the
Alarm Counter Reset
button .
–
H.221 Framing
: If the ITU-T J.52 inband signalling is used, faulty H.221
frames are displayed and filed.
–
Decoder synced
: This alarm occurs if the local decoder is not synchro-
nized.
–
Remote Decoder synced
: This alarm signals that the remote decoder
is not synchronized. It is only analysed if the ITU-T J.52 signalling is
used between
MAGIC Audio codecs.
–
Encoder not running
: This alarm occurs, if the communication with
the DSP module is faulty.
–
Encoder sampling clock
: This alarm is currently not analyzed.
–
Decoder sampling clock
: This alarm occurs when in the ISO/MPEG
data stream a sampling frequency of 44,1-kHz is signaled. This sam-
pling frequency cannot be decoded by the
MAGIC AC1 XIP .
– If the optional, digital Audio input is selected, but no digital Audio si-
gnal is connected to AUDIO1/AES/LEFT IN , the
AES3 Framing
alarm
occurs.
– The actual system temperature can be found under
System Tempera-
ture
. The temperature is measured in °C. A normal system temperature
lies around 30...40°C.
– Under
DSP Load
the load of he system is displayed. A normal DSP
load is 30...60%.
• Under
System Logfile
a detailed ISDN logfile can be generated.
–
ISDN Layer 1
: Physical Layer: All messages which concern the physi-
cal activation/deactivation of the ISDN interface are saved in Layer 1.
–
ISDN Layer 2
: Data Link Layer: The data link layer is responsible for
packing the data from the physical layer into frames. It can detect
and/or correct errors and manages the data flow between nodes. This
layer is only to be activated for logging if problems are supposed to oc-
cur. Please notice that if it is activated every 8 seconds an entry is gene-
rated and therefore the memory is filled very fast.
–
ISDN Layer 3
: Network Layer: The network router handles the routing
of the data (sending it in the right direction to the right destination on
outgoing transmission and receiving incoming transmimssions at the
packet level). For the logfile, this layer is the most important one since
all connection data is recorded here.
– The logfile can be deleted by pressing the
Delete File
button. For safety
reasons a confirmation is required.
TIP
You can also configure a system alarm as relay output (see PAGE 75).