Determining maximum cable lengths | Sennheiser SDC 8200 specification

Structuring the SDC 8200 system

Determining maximum cable lengths

In the preceding examples, the standard length of “3 m” is always given for the system cables between the conference consoles. However, it is no problem to use other cable lengths or cables of differing lengths within the same string.

However, if you wish to use longer cables, make sure that all consoles – including the last one in a string – are supplied with a voltage of at least 30 V!

Calculating the voltage drop on the system cables

Every meter of system cable and every console in a string causes a voltage drop. Thus, the further back a console is located in a string, the less voltage it receives.

Delivery includes a the calculating program “Powercalc.exe” with which you can easily calculate the voltage drops on the individual sections of a string. In this way, you know even before setting up the conference system whether it will work or not.

This program can also be downloaded from www.sennheiser.com.

Structuring an interpretation system

If your SDC 8200 system comprises interpreter consoles, these are usually installed in acoustically isolated interpreter booths so that the interpreters cannot disturb each other or the audience.

One booth with a team of interpreters is normally required per target lan- guage. Within one language team, interpreters will take turns every twenty minutes or so, in order to give each other an adequate break and maintain a high level of quality.

Your SDC 8200 interpretation system can comprise

ya maximum of 224 interpreter consoles,

ya maximum fo 28 intepreter booths,

ya maximum of eight interpreter consoles per booth.

Within a booth, each interpreter console has to be assigned a number, with the numbering starting always from 1.

The interpreter consoles can be connected anywhere in the cable strings.

Booth 1	Booth 2		Booth 3	Booth 4
Desk 1 Desk 2	Desk 1	Desk 2	Desk 1 Desk 2	Desk 1 Desk 2	...	15
...
...
1	2	3		...		15
...
1	2	3		...		15
1	2	3				15

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Sennheiser SDC 8200 system manual Determining maximum cable lengths, Structuring an interpretation system

Contents

SDC Thank you for choosing Sennheiser Contents Interconnecting several central units in master/slave mode 100 Important safety instructions Objects and liquids Important safety informationDisconnection from the mains Overload Safety check Maintenance and careReplacement parts SDC 8200 the digital conference and interpretation system Conference consoles Overview of the components SDC 8200 system SDC 8200 CU central unit Interpreter consolesCentral units SDC 8200 AO analog output unit System cablesSoftware control SDC 8200 CU-M central unit Technology used Display of voting results as diagrams Consoles All consoles featureComponents of the SDC 8200 system in detail Interpreter console features SDC 8200 D conference unit SDC 8200 C chairman unit SDC 8200 DC conference unit SDC 8200 CC chairman unit Vote LED SDC 8200 DV conference unit SDC 8200 CV chairman unit Autofloor LED SDC 8200 ID interpreter console SDC 8200 CU central unit SDC 8200 CU-M central unit SDC 8200 AO analog output unit optional System cables Turning on the central unit for the first time Operating the components of the SDC 8200 systemTurning the conference and interpretation system on/off Taking the floor / Making a request to speak Operating the delegate unitsTurning interconnected SDC 8200 CU central units on/off Direct Access mode Group 3 mode With Req. No clear mode With request mode Hearing damage due to high volumes Turning off the microphone / Cancelling a request to speak Vote 1 Selecting an interpretation channelVoting Operating the VIP units Using the chip card slot of a conference console Starting a voting session Operating the chairman unitTurning all active conference consoles off priority Assigning a participant the speaking right This system is capable of producing sound pressure Operating the interpreter consoles Configuring the B-channel of an interpreter console Switching between the A-channel and the B-channel Using the interpreter console Restarting the conference and interpretation system Adjusting the volume of the consoles’ built-in loudspeakersOperating the central unit Muting the microphone of the interpreter console Operating Menu Control Level F1, F2 and F3 function keysMenu operating controls Working with the central unit’s operating menu Operating the components of the SDC 8200 system Structuring the SDC 8200 system Interconnecting the conference/interpreter consolesConnecting cable strings to a central unit Interconnecting up to twelve SDC 8200 CU central units Expansion stage 1 one central unit with up to 20 consoles =10 m RS 232 = 10 m Calculating the voltage drop on the system cables Determining maximum cable lengthsStructuring an interpretation system Mode between booths Toggle Override Selectable modes between or within interpreter boothsMode between booths Mixed Mode between booths Override Example Mode in booths MixedMode in booths Toggle Override Auto-floor function AUTO-FLOOR Using the audio outputs of the central unit Using external equipmentConnecting external audio sources Central unit Setting up the SDC 8200 systemPreparing the SDC 8200 system components for set up Conference and interpreter consoles Setting up the SDC 8200 system Connecting a cable string to the central unit Interconnecting the SDC 8200 system componentsInterconnecting the consoles Exiting the slave mode of a central unit Activating the master/slave mode Setting up remote conferences Connecting additional equipment Pin assignment of the 15-pole sub-D socket AUX OUT Connecting PA systems, recording units, etc Load Connecting a PC to the central unit Six main menus Configuring the SDC 8200 systemIntroduction to the central unit’s operating menu Start display Exit Enter Menu part 1 Submenus Submenus Conference menu part 2 Menu part 3 Submenus of the Conference menu part 4 Manual Init Submenus of the Conference Submenus of the Conference menu part 6 Submenus of the Conference menu part Part 1of InterpretationMenu Submenus of the Interpretation menu part 2 Submenus of the Interpretation menu part 3 Submenus of the Interpretation menu part 4 Interpretation menu part Submenus of the Aux-In/Out menu part 1 Submenus of the Aux-In/Out menu part 2 Submenus of the Aux-In/Out menu part 3 Submenus of the Aux-In/Out menu part 4 Submenus of the Aux-In/Out menu part 5 Menu part 6 Aux-In/Out Submenus of the Aux-In/Out menu part 7 Submenus of the Aux-In/Out menu part 8 Part 1 Submenus of the System menu Submenus of the System menu part 2 Language and the License menu part 1 Manually initializing all conference consoles Setting the volume of the consoles’ built-in loudspeak- ersConfiguring the conference system Automatically initializing all conference consoles Text Mic. Number = 00 is shown on the display Reserving a microphone number Setting the speaker limit Selecting a conference mode Adjusting the audio settings for the consoles’ microphones Deleting the list of chairman units Chairmen Configuring additional chairman units Chairmen Deleting the list of VIP units VIP Configuring additional VIP units VIPResetting the conference system Reset Testing the consoles’ microphones Testing the consoles’ built-in loudspeakers Working with the interpreter configuration Configuring the interpretation systemConfiguring the display of the voting options Creating a new interpreter configuration Loading a previously saved interpreter configuration Modifying the currently active interpreter configuration Options Setting the max. number of interpreter booths/languagesSetting the max. number of interpreter consoles per booth Configuring the operating mode between booths Configuring the language options for the interpreter booths Configuring the operating mode within a booth Configuring the second target language B-channel of a booth Configuring the main target language A-channel of a booth Enabling the auto-relay interpretation function Auto-floor 100 101 102 Adding interpreter consoles to an existing configuration Choosing the audio inputs and outputs Resetting the interpretation system103 104 Adjusting the volume of the audio outputs Assigning a channel to an audio output 105 Turning on/off the audio inputs or outputs 106 107 Configuring the audio outputs for remote conferencingAdjusting the input level of an audio input Adjusting the input sensitivity of an audio input 108 Displaying the current port status Making a system diagnosis109 Turning on/off a camera control Configuring connected additional components110 Checking the communication within a cable string 111 Configuring an ambient sound console Displaying the central unit’s serial number Software, language and license112 Choosing the language of the central unit’s operating menu 113 Console does not work If problems occur114 Central unit does not work 115 Accessories 116 SpecificationsFeatures of the central units 117 AUX OUT 118 119 SDC 8200 AO analog output unitRJ 45 cable 120 Syntax of the commandsAppendix a Camera control protocol Notation of the general syntax Commands121 122 Appendix B Control panel protocol 1X06060606 123 124 Appendix C Repeater for the SDC 8200 system FCC Rules Warranty regulationsManufacturer declarations CE Declaration of Conformity 126