User's Manual Part 2

CL1TC-4 400W DVB-H Transmitter Alarms
Product Manual, Rev. 1 131
10.5.12 Output Bitrate Is Out Of Limit
Outpu
t bit rate is out of limit - a hardware failure alarm set when the output bit-rate is 10%
higher or lower than the ideal bit rate corresponding to the selected mode.
Note: This alarm is only reported in SNF mode and is factory configured to mute the
modulator.
10.5.13 Bandwidth Not Supported
Bandwidth
Not Support - set when the modulator “Config from stream” is enabled and an
incorrect bandwidth value is specified
The modulator has factory settings for different transmission bandwidths (menu selectable).
If the factory setting does not match the desired bandwidth signaled in the MIP packets
then the alarm is raised.
Note: This alarm is only reported in SNF mode and is factory configured to mute the
modulator.
10.5.14 Hardware Muted Event
Hardware M
uted Output - set when the modulator hardware mutes its RF output due to a
short input stream interruption or SFN resynchronization.
The rationale for this alarm is not to disturb the greater SFN network in case an erroneous
stream enters a modulator or a modulator detects a shift of the mega frame start points.
Note: This alarm is only reported in SNF mode and is factory configured to mute the
modulator.
10.5.15 IP Input FIFO Overflow
IP Inp
ut Fifo Overflow - set when IP input channel bitrate is too high, causing a FIFO
overflow.
10.5.16 IP Input FIFO Underrun
IP
Input Fifo Underrun - set when the IP input channel bitrate is too low.
Note: This alarm is only reported in MFN mode.
10.5.17 IP Input Payload Error
IP Input Pa
yload Error - set when the IP input packet payload content does not start with
sync byte 0x47.