Sennheiser SDC 8000 system manual Determining maximum cable lengths

Page 40

Structuring the SDC 8000 system

Expansion stage (3): several central units with up to 900 consoles

For larger conference and interpretation systems with up to 900 consoles, you can interconnect a total of 10 central units. The additional central units are connected as “slaves” to the central unit configured as “master”. If the conference and interpretation system is to be PC controlled, the PC must be connected to the “master” central unit.

To set up a conference system with several central units, you first have to interconnect the consoles in cable strings and then connect the cable strings to the central units. Finally, you interconnect the central units (see “Interconnecting several central units” on page 48).

<=3 m	1
<=3 m	2
<=3 m
<=3 m	3
RS 232	4
RS 232
<= 3 m

		0	0	m
	1		0
≤

...

...

...

...

...

...

...

...
...
...
...
...
100	m

≤

3 m		3 m	...
...
... 1	2	3	15
...
...
3 m		3 m	...
1	2	3	15

3 m		3 m	...
...
... 1	2	3	15
...
...
...
...		3 m	...
3 m		3 m	...

The distance between a central unit and the first console of a cable string must not exceed 100 m. The maximum length of the system cables used for interconnecting the central units must not exceed 3 m.

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 want 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!

40

Image 40

Contents SDC Thank you for choosing Sennheiser Contents Via a PA system Configuring the interpretation system 100 Appendix a Safety information SDC 8000 the digital conference and interpretation system Overview of the components SDC 8000 system Conference consoles$!# Technology used Components of the SDC 8000 system in detail All consoles featureConsoles Interpreter console features SDC 8000 D conference unit SDC 8000 C chairman unit SDC 8000 DC conference unit SDC 8000 CC chairman unit SDC 8000 DV conference unit Vote LEDSDC 8000 CV chairman unit SDC 8000 ID interpreter console Autofloor LEDSDC 8000 CU central unit SDC 8000 AO analog output unit optional System cables Direct Access mode Operating the components SDC 8000 systemOperating the delegate units Taking the floor / Making a request to speakOperating the components of the SDC 8000 system On your console go off With Req. No clear mode With request modeTurning off the microphone / Cancelling a request to speak Selecting an interpretation channel VotingUsing the chip card slot of a conference console Operating the VIP unitsOperating the chairman unit Turning all active conference consoles off priorityStarting a voting session Assigning a participant the speaking rightRequest Configuring the B-channel of an interpreter console Operating the interpreter consolesUsing the interpreter console Switching between the A-channel and the B-channel Adjusting the volume of the consoles’ built-in loudspeakersOperating the central unit Muting the microphone of the interpreter consoleMenu operating controls F1, F2 and F3 menu keysOperating control Menu level Working with the central unit’s operating menu Interconnecting the conference/interpreter consoles Connecting cable strings to a central unitInterconnecting up to 10 central units Structuring the SDC 8000 systemExpansion stage 1 one central unit with up to 15 consoles Expansion stage 2 one central unit with up to 90 consolesDetermining maximum cable lengths Structuring an interpretation system Calculating the voltage drop on the system cablesSelectable modes between or within interpreter booths Mode between booths MixedMode between booths Override Mode between booths Toggle OverrideMode in booths Mixed Mode in booths OverrideAuto-floor function ExampleAUTO-FLOOR Using external equipment Connecting external audio sourcesStructuring the SDC 8000 system Setting up the SDC 8000 system Preparing the SDC 8000 system components for set upInterconnecting the SDC 8000 system components Interconnecting the consolesConnecting a cable string to the central unit Interconnecting several central unitsConnecting additional equipment Turning the central units on and offCarrying out remote conferences Connecting PA systems, recording units, etc Pin assignment of the 9-pole sub-D socket AUX OUTDaisy-chaining SDC 8000 AO analog output units Connecting a PC to the central unit Configuring the SDC 8000 system Introduction to the central unit’s operating menuStart display Six main menusEnter Exit Submenus of the Conference menu part 1 Submenus of the Conference menu part 2 Submenus of the Conference menu part 3 Submenus of the Conference menu part 4 Submenus of the Conference menu part 5 Submenus of the Conference menu part 6 Submenus of the Interpretation menu part 1 Submenus of the Interpretation menu part 2 Submenus of the Interpretation menu part 3 Submenus of the Interpretation menu part 4 Submenus of the Interpretation menu part 5 Submenus of the Aux-In/Out menu part 1 EnterSubmenus 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 Submenus of the Aux-In/Out menu part 6 Submenus of the System menu part 1 Submenus of the System menu part 2 Submenus of the Language and the License menu part 1 Settingthe volume of theconsoles’ built-inloudspeakers Configuring the conference systemTurning on the central unit for the first time Automatically initializing all conference consolesManually initializing all conference consoles Reserving a microphone number Selecting a conference mode Setting the speaker limit Adjusting the audio settings for the consoles’ microphones Resetting the conference systemTesting the consoles’ built-in loudspeakers Testing the consoles’ microphonesConfiguring the display of the voting options Configuring the interpretation systemWorking with the interpreter configuration Creating a new interpreter configuration Modifying the currently active interpreter configuration Loading a previously saved interpreter configurationSetting the max. number of interpreter consoles per booth Setting the max. number of interpreter booths/languagesOptions Configuring the operating mode between booths Configuring the operating mode within a boothConfiguring the main target language A-channel of a booth Configuring the language options for the interpreter boothsConfiguring the second target language B-channel of a booth Enabling the auto-relay interpretation function Auto-floor ENG To transmit the selected booth number to Adding interpreter consoles to an existing configuration Resetting the interpretation system Adjusting the volume of the audio outputs Configuring the audio inputs and outputsChoosing the audio inputs and outputs Assigning a channel to an audio output Configuring the audio outputs for remote conferencingTurning the audio inputs or outputs on and off Adjusting the input sensitivity of an audio input Adjusting the input level of an audio inputConfiguring the outputs of the SDC 8000 analog output unit OUT Configuring connected additional components Making a system diagnosisChecking the communication within a cable string Camera controlConfiguring an ambient sound console Software, language and license Choosing the language of the central unit’s operating menuDisplaying the central unit’s serial number If problems occur Maintenance and careReplacing a fuse Conference/interpreter console does not workAccessories SDC 8000 D SpecificationsSDC 8000 C SDC 8000 DC SDC 8000 CCSDC 8000 DV SDC 8000 CVSDC 8000 ID 108 SDC 8000 AO analog output unit RJ 45 cableSyntax of the commands Appendix a Camera control protocolCommands Notation of the general syntaxCommands Appendix B Control panel protocol113 Appendix C Repeater for the SDC 8000 system 114115 Approval