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DCN Next Generation Release Notes
Product/function
DCN-NCO
DCN-CCU DCN-
NCO
DCN-NCO
DCN-CCU,
INT-TX04/08/16/32
DCN NCO
DCN-CCU
INT-TX04/08/16/32
DCN NCO
DCN-CCU
INT-TX04/08/16/32
INT-TX04/0816/32
Bosch Security Systems| 2014-10-31
Problem
DCN-NCO cannot be
downgraded or
upgraded.
Local floor muted after
download of NCO or
CCU
Unexpected behavior
when adding powered
system units to the
optical ring
Audio disruption when
switching on a
transmitter
Audio disruption when
one of the CCUs is in
the mode
"--"
The transmitter
displays the message
"No Network"
Solution
A known issue is that DCN-NCO cannot be
downgraded from SW 2.70.
Workaround
1) Install the Download and License Tool of the
version you want to use to downgrade or upgrade
to.
2) Open Notepad and paste the text below into
Notepad
user target password
cd /rfa
dele PDSDATA1.PDS
dele PDSDATA2.PDS
bin
hash
cd /rfa/drv
put mmu_3.bit
put mif_3.bit
cd /bim
put dune.bim
bye
3) Save the file in Notepad to C:\Program
Files\Bosch\Digital Congress Network\Download
and License Tool\Files with name dcn-nco.txt
4) Switch off the NCO and set dipswitch 1 of S3 to
on, set all other switches to off
5) Switch on the NCO
6) Open a command prompt (start -> run -> cmd)
and change to the following folder: C:\Program
Files\Bosch\Digital Congress Network\Download
and License Tool\Files
7) Download the NCO with the next command line
FTP with the command:
ftp -n -s:dcn-nco.txt x.x.x.x
Where x.x.x.x is the IP-address of the NCO
8) Switch off the NCO and set the dipswitches all to
off
9) Switch on the NCO
10) Start the Download and License Tool and start a
NCO download.
Switch off and on the CCU or NCO
In case system units are added to the optical ring
when the system is powered on, unexpected behavior
can occur. Only connect units to the optical network
when all units are powered off.
Select the option "enabled" in menu 4b (network
mode).
Change the slave id "--" to a number. (refer to menu
7I Multi Mode).
Connect a powered DCN Next Generation or DCN
wireless system to the transmitter or select the option
"standalone" in menu 4b (network mode)
en | 13
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