DCN Next Generation 2.40 Release Notes
en 13
10 Release 1.00
10.1 General
10.1.1Release Date
June 15th 2004
10.1.2Firmware/FPGA versions
Product | FPGA | SWA | SWB |
LBB 4100 | 1.00 | 1.00.0552 | 2.10.1402 |
LBB 4112 | 1.3 | ||
LBB 4120 | 1.0 | 1.00.0552 | |
LBB 4124 | 1.0 | ||
LBB 4402 | 1.00.0552 | 2.10.1402 |
10.2 Errata
10.2.1 Audio Expander: not possible to disable audio outputs using input contacts
In paragraph 10.3.5 of the Installation and User Instructions is described that the audio outputs 1 to 4 can be disabled by closing respectively control input 5 to 8. This function is not supported. However disabling audio inputs 1 to 4 by closing respectively control input 1 to 4 is supported.
10.2.2Audio Expander: output range 12 dB In paragraph 10.7.7 of the Installation and User Instructions is the output range specified as 30 dB, while the output range is 12 dB. Table 10.3 of the Installation and User Instructions represent the correct values.
10.2.3Audio Expander: power consumption 7.6 Watt
The power consumption of the LBB 4402/00 Audio Expander is 7.6 Watt instead of 5.6 Watt. Add power by using a Network Splitter (LBB 4410/00) with an external power supply in case the power is insufficient.
10.3 Known limitations
10.3.1System: reset of units after connecting new units to a trunk
When a Channel Selector, Interpreter desk, Trunk Splitter,
If it is important that the channel selectors are not reset to default in above described situation: use the auto restore function of the channel selector.
See the Installation and User Instruction for how to set the auto restore function.
If it is important that you can connect and replace each unit during operation, without the above described reset behavior: power the units with the LBB 4106 Extension Power Supply Unit. The LBB 4106 Extension Power Supply Unit is less prone to the inrush current.
10.3.2System: noise during system start During system start up noise is heard for a maximum time of 30 seconds. The noise is heard from the headphones connected to the channel selectors and interpreter desks and the loudspeaker of the interpreter desks.
10.3.3Central Control Unit: fault contact closed despite system is ok
When the system is initialized for four times, the fault contact is activated, while the system works properly. Switch off the CCU in order to reset the fault contact.
10.3.4Audio Expander: not more than one input used for floor insertion
Undefined behavior occurs if more than one audio input is used for floor insertion per system. Use not more than one audio input for floor insertion.
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