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Sierra Video Systems 

 

55

 

Specifications 

Audio Specifications 

 

Audio 

Nominal Input Level 

+4 dbm 

Maximum Input Level 

+ 24 dbm 

Input Impedance 

15k ohms, balanced 

Common Mode Rejection 

≥

 40 db @ 60 Hz 

Nominal Output Level 

+4 dbm 

Maximum Output Level 

+24 dbm into 150 ohms 

Output Source Impedance 

150 ohms, balanced 

Voltage Gain 

Unity ± 0.1db (High Z load) 

Frequency Response 

20Hz to 20kHz ± 0.1 db 

Bandwidth 100 

kHz 

S/N Ratio (20 Hz to 20 kHz)  110 db ref. To +24 dbm 

Crosstalk (all inputs hostile) 

≥

 80db @ 15 kHz 

IM & THD (20Hz to 20 kHz) 

≤

0.05% to +24 dbm 

 

Chapter 

7 

Содержание Tahoe 2010A

Страница 1: ...SIERRA VIDEO SYSTEMS Tahoe Series 20 Routing Switchers Models 2010V 2010VA 2010VAA 2010A 2010AA 2020V 2020VA 2020VAA 2020A 2020AA User s Manual...

Страница 2: ......

Страница 3: ...al Sierra Video Systems P O Box 2462 Grass Valley CA 95945 Tel 530 478 1000 Fax 530 478 1105 Email info sierravideo com Version 2 0 Publication Date February 2012 The information contained in this man...

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Страница 5: ...Breakaway Audio Configurations 12 J1 Connector 12 Connecting Peripherals 13 Sync Input 14 AC Power Connections 14 Control Processor Dip Switch Settings 14 Names 16 Salvos 16 Operation 17 Control Syste...

Страница 6: ......

Страница 7: ...cher Matrix The crosspoint array of the switcher module that selects which input is selected to an output Output Connects the signal to the destination device Protocol The command structure used on a...

Страница 8: ...shock plug the power cord into a properly wired receptacle before connecting inputs and outputs Route power cords and other cables so that they are not likely to be damaged or create a hazard Dangero...

Страница 9: ...NEMA configurations International Power Supply Cords If shipped outside North America this equipment is supplied with molded ground connector IEC 320 C13 at one end and stripped connectors 50 5mm at t...

Страница 10: ...connected together by a J1 connecting cable Tahoe routing switchers can be video or audio only Multiple frames can be connected together up to 8 levels under the same Tahoe control system For multipl...

Страница 11: ...20x Routing Switchers Front and Rear panel illustrations are provided in the following subsections for each switcher model Take time to familiarize yourself with the location of your switcher model fe...

Страница 12: ...s In some cases these frames may be configured with fewer video channels and perhaps no audio i e Tahoe models also offer redundant power supplies Consult the rear panel serial number and model number...

Страница 13: ...in the final result For long distances over 15 meters between sources and destinations special measures should be taken to avoid high frequency cable losses These measures include using higher qualit...

Страница 14: ......

Страница 15: ...he front of the frame None of the switcher models require spacing above or below the unit for ventilation If ample space exists a 1RU spacing gap is recommended Rack Mounting To rack mount the routing...

Страница 16: ...at of the input signal format All signal connections that use more than one cable interconnecting between devices should be of equal timing length example cables between a camera and the switcher shou...

Страница 17: ...nation device of both channels To connect an unbalanced device to the switcher first place a jumper between the negative and the ground on the switcher jumper not included Then connect the device posi...

Страница 18: ...separately after the breakaway Audio channels can be configured to breakaway from each other left and right ect J1 Connector The connector labeled J1 on the back panel is used to connect other routin...

Страница 19: ...me The peripherals area may vary depending on the model size and type Tahoe series routing switchers offer redundant power supplies but must be specified prior to order Note Rear Panels vary according...

Страница 20: ...o order Voltage selection must be specified prior to order Turn on power to the frame ONLY AFTER all video and control connections have been completed as described below Control Processor Dip Switch S...

Страница 21: ...Tahoe Series 20 15 Note Changing any Dip Switch causes an automatic reset after a few seconds...

Страница 22: ...on of this manual Salvos A Salvo is a group of Sources and Destinations that are stored in the routing switcher and switched by a single Salvo Take command GRIP Routing Software allows up to 40 Salvos...

Страница 23: ...m s internal control computer are located on the rear of the routing switcher frames When systems are ordered with more than one frame only one frame will have a control computer module installed The...

Страница 24: ...onnect pin for pin RS 485 Interconnect Cable Power Up Once all signal and control connections have been made turn on the power switch AC to the router is indicated by an LED above the power switch If...

Страница 25: ...in a group called a command string A command string can contain zero or more commands limited only by the size of the receive buffer of the router whose size depends on the particular router model A c...

Страница 26: ...he commands some of them may generate additional output back to the host These command response characters are always preceded and followed by a space character making the response string easily human...

Страница 27: ...Inquiry L L Matrix Size and Level Names Inquiry O O5 Output Status inquiry N N5 Input Status inquiry S S Status inquiry C C Clear matrix K K9999 Set Password to Change Protected Settings M M139 Set R...

Страница 28: ...ommands The Q command will eventually be added to all For example the command I might return the following string ILSX OK CR indicating that the router supports the I L S and X commands from the host...

Страница 29: ...allow an input to be connected to at most one output The status information is sent as a Y command or a sequence of L X commands where L number of levels that allow an input to be connected to at most...

Страница 30: ...ve input 1 as their source This command can take several seconds to execute depending on the size of the switcher matrix In order to help ensure that this command isn t accidentally executed it requir...

Страница 31: ...ion settings might require entry of an administrator password before allowing the router configuration to be modified The K command is used to send the password but the router must be able to record t...

Страница 32: ...anged For example the command U1 turns on automatic output change reporting When a crosspoint is changed the following message might be received X5 17 3 CR indicating that output 5 is now connected to...

Страница 33: ...3 to output 2 and input 9 to output 3 If the level number is specified as 0 this means that the connection is to be made on all levels AFV For example the command W0 8 3 7 says that connections are to...

Страница 34: ...anged An input number of dash means the output is to be disconnected If the router does not support disconnected outputs the output connection will be left unchanged Any input or implied output number...

Страница 35: ...nnect commands for later execution with the T command It must be followed by a register letter from A to Z or a register number from 1 to 256 giving the register into which the connect sequence is to...

Страница 36: ...ock state as before In the B command response that is sent by the router the password argument is the current lock password for the output 1 9999 or is 0 if the output is not locked and the lock argum...

Страница 37: ...a buffer that is marked to be delivered to the crosspoint hardware on a particular video field Suppose that previously an F5 command has been received Then crosspoint commands whose final command str...

Страница 38: ...he fielddelay value applies to the entire router not just to the control port on which the F command is received It is therefore recommended that a single value be settled on for the fielddelay value...

Страница 39: ...tional optional arguments may give a new value for the parameter All arguments are separated from one another by commas When the Modify form of the command is used and if the new value is a valid valu...

Страница 40: ...dify command has two or more arguments the name of the variable to be changed and the new value of that variable Most variables have only a single value associated with them but it is possible for a v...

Страница 41: ...is possible for a variable to be multi valued in which case the number of value arguments may be two or more The Query command has the name and index of the array variable whose value is to be queried...

Страница 42: ...ti valued in which case the number of value arguments may be two or more The Query command has the name and the two indexes of the array variable whose value is to be queried as its three arguments Th...

Страница 43: ...ealer Power and Indicators Problem Remedy No power Confirm that the rocker switch is in the ON position and that the power lamp is illuminated Confirm that power connections are secured at the switche...

Страница 44: ...that the connecting cables are of high quality properly built and terminated with 75 ohms Check level controls located on your source input device or output monitor or recorder Replace the video cros...

Страница 45: ...h quality and properly built Take special care in noting the wiring configuration of balanced to unbalanced cables if possible use a matching transformers Check level controls located on your source i...

Страница 46: ...ully and connect the suspect source to it If the channel continues to switch successfully then there is something wrong with the Matrix Switcher or the suspect source was not connected properly If it...

Страница 47: ...5 MHz This processor has 3 serial control channels built in The 504001 controls the switching matrix by means of a parallel interface This interface is designed to have the proper timing characteristi...

Страница 48: ...and one of the first things it does is set the range and address of the other chip selects properly The first three chip selects are used by the EPROM U2 the static RAM U3 and the battery RAM U4 The...

Страница 49: ...ognizes the DTACK and terminates the memory cycle It removes CS3 assertion which immediately returns U14 to the held in reset count state U14 returns to 0 and the entire process can then repeat with a...

Страница 50: ...ce circuits use and 12VDC Low voltage AC enters the module It is then rectified and filtered Three terminal fixed voltage regulators are used to provide the required ages Video Crosspoint Module 50403...

Страница 51: ...er supply It is the basic building block for the audio portion of the Tahoe series 20 routing switchers The 504035 employs balanced audio switching The advantages include higher internal levels to ach...

Страница 52: ...ars on the other logic lines to the 504035 Power Supply Low voltage AC enters the 504035 on J3 pins 27 and 28 If dual supplies are used low voltage AC from the second supply enters the 504035 on J3 pi...

Страница 53: ...Tahoe Series 20 47 Schematics 504001...

Страница 54: ...Sierra Video Systems 48...

Страница 55: ...Tahoe Series 20 49...

Страница 56: ...Sierra Video Systems 50...

Страница 57: ...Tahoe Series 20 51...

Страница 58: ...Sierra Video Systems 52 504034...

Страница 59: ...Tahoe Series 20 53...

Страница 60: ...Sierra Video Systems 54 504035...

Страница 61: ...Rejection 40 db 60 Hz Nominal Output Level 4 dbm Maximum Output Level 24 dbm into 150 ohms Output Source Impedance 150 ohms balanced Voltage Gain Unity 0 1db High Z load Frequency Response 20Hz to 20...

Страница 62: ...put Video Level 1 V p p Maximum Output Video Level 1 5 V p p Output Impedance 75 ohms Output Return Loss 35 db 5 MHz DC on Signal 50 mV Gain Unity 2 db adj Response 0 1 db to 5 MHz 0 3 db 5 50 MHz Dif...

Страница 63: ...P program For details on software upgrades refer to the GRIP manual Operation Download the software upgrade to a folder on your PC Open G R I P and click on Router Configuration from the drop down lis...

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Страница 65: ...fans are warranted for three 3 years from the date of purchase for new equipment and two 2 years for Factory Refurbished units from the date of purchase Buyer must obtain a Return Material Authorizat...

Страница 66: ...as provided in paragraph B immediately above all sales are final and Buyer may cancel this order or return products only upon written consent of SVS D General In the event of a breach of any of the t...

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