Panasonic AJ-SD955A RS-232C interface, Software specifications Protocol, Communication parameters

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RS-232C interface

Software specifications (Protocol)

1. Communication parameters

Communication

Asynchronous, full duplex

system

 

 

 

Communication

300/600/1200/2400/4800/9600

speed

 

 

 

Bit length

7bit/8 bit

 

 

Stop bit

1 bit/2 bit

 

 

Parity bit

NONE/ODD/EVEN

 

 

ACK code

ACK code returned/ACK code not returned

 

<Note>

 

The ACK code is what is returned from the

 

VTR to the controller when data has been

 

successfully sent from the controller.

 

 

The underlining indicates the factory settings.

Any changes to the settings can be made using the setup menu items listed below.

Communication

Setup menu item

parameter

 

 

 

 

 

Communication

No.205 BAUD RATE

speed

 

 

 

Bit length

No.206 DATA LENGTH

 

 

Stop bit

No.207 STOP BIT

 

 

Parity bit

No.208 PARITY

 

 

ACK code

No.209 RETURN ACK

 

 

2.Send format [controller (PC) 5 VTR]

$ Data format

[STX]

[command]

[:]

[data]

[ETX]

02h

XX XX XX

3Ah

XX

.....

XX

03h

 

20H<XX<7FH

(XX = ASCII code: symbols, numbers upper-case letters)

[command] :

Command identifier; a 3-byte identifier (ASCII code: symbols, numbers, upper-case letters) is sent as the command.

[ : ] :

This code serves as a delimiter between the command and data.

[data] :

Data (ASCII code: symbols, numbers, upper- case letters) can be added in the number of bytes required.

$ Outline of send procedure from controller

1The send command starts with STX (start of text = 02h).

The command is then identified by COMMAND which follows and the data is added as required. The format ends with ETX (end of text = 03h).

2When a different command is to be sent, a response is awaited from the VTR, and then the command is sent. (See page 72.)

3If STX is sent again before ETX is sent, the receive data buffer inside the VTR is cleared. A command error is returned to the controller, and the data is newly processed with STX which was received again at the head.

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Contents Operating Instructions Model No. AJ- P$ this Apparatus Must be Grounded FCC NoteContents IntroductionFeatures Parts and their functions Front panelParts and their functions Front panelSearch button PlayerRecorder ? SHTL/SLOW buttonInsert buttons SD955A Assem button SD955ATrim buttons SD955A Unity VARRegen PresetOFF EXTDisplay panel REC Display panelEdit REC REC INHIN/OUT Rear panelOUT Monitor OUT connectors Parallel Remote connectorAnalog Audio OUT connectors = Signal GND terminalRecorder ConnectionsSource machine OFFAV monitor AV monitor Reference signal GeneratorConnections with editing controller Editing controllerTapes Cassette sizeJog mode Jog/ShuttleManual editing SD955A Preroll SD955AWhen using the AJ-SD955A as the player Switch settings and adjustmentsWhen using the AJ-SD955A as the recorder Automatic editing deck-to-deckSD955ASelecting the editing mode Match frame processing functionHow to calculate the duration Checking and previewing edit pointsModifying edit points Re-registering an edit pointAutomatic editing deck-to-deckSD955A Executing and reviewing automatic editingAudio split editing SD955A Between the audio in and OUT points Between the video in and OUT pointsMatch frame processing system Variable memory editing operation procedure Variable memory editing SD955AChanging the settings Setup initial settingsSetting and releasing the lock mode Setup menusChanging the file Loading user files Lock mode can be setLock mode can be set Counter display Menu screen Load/saveSaving user files Setup menusMenu screen System menu SYS SC/H Setup LevelOffset LocalUser menu Basic Moni User menuBasic ControlOperation Memory stop function Eject SW REC INHLamp INHInterface Edit IN/OUT DELVAR REV MAX VAR FWDMAX JOG FWDTape Protect Time Code SBC RUN ModeVitc OUT VauxOUT Vsync YC SEP ModeINT SG Mute SELSetup ESR ModeCCR Mode CmpstSignals on the tape DVCPRO50 50 Mbps modeSub-screen This selects the 7.5% setup processing for CC RECCH3 in LV CH1 in LVCH2 in LV CH4 in LVPCM Moni CH SELManu REC CH1SEL Moni SEL INHMON Auto Audio VR SELREC LINE1 BlankADD Line REC LINE2REC LINE4 REC LINE2REC LINE3 Teletext SELDET Number of lines which can be set for TeletextTeletext REC LINE13Menu Time code Setting the internal time codeTime code/user bit User bitLTC Setting the external time codeVitc Characters displayed Operation modeSuperimpose screen Display positionExternal synchronization of video output signals Video output signals and servo reference signalInternal synchronization Servo reference signal StartAudio V fade function Audio signal aFade is performed instantaneously to eliminate the noise Audio recording channel Audio recording channel and monitor output selectionPrinted circuit board Monitor output channelRack-mounting adaptors Rack mountingStandard rack Fasten it to the rack with set screws Condensation Video head cleaningMaintenance Attaching the dust cover$ Displaying the Diag menu Error messagesDiag menu $ Warning information display$ Displaying the Hours Meter information Invalid Video SIG High Error RateUnknown SIG Invalid Audio SIGError messages Reel Rota VTR Stop TOO Fast Tension VTR Stop ErrorTorque VTR Stop Error ReelConnector specifications Hardware specificationsRS-232C interface Communication parameters Software specifications ProtocolRS-232C interface Send format controller PC 5 VTR$ When the communication has terminated normally Error code tableReturn format VTR 5 controller PC Command table $ Commands relating to operation controlCTL/TC Data STX QCD ETX $ Commands relating to inquiriesRequest Sdti signals Precautions to observe when using the Sdti signalsSource Reference signal Generator Sdti interfaceRemote IN/OUT Connector signalsRemote OUT RS-232C SUB 25-pin crossover cable supported$Digital video Specifications$Video input connector $Digital IN/Analog Component OUTSpecifications Other Input/Output ConnectorsPage Western Zone Panasonic Broadcast & Television Systems CompanyEastern Zone Technical Support

AJ-SD930, AJ-SD955A specifications

The Panasonic AJ-SD955A and AJ-SD930 are noteworthy additions to the world of professional video production, combining cutting-edge technology with user-friendly features. Both models are designed for broadcast and post-production environments, offering high-quality video capture and playback at an impressive level of performance.

The AJ-SD955A is a versatile digital disk recorder that supports a wide range of formats, including DV and DVCPRO. This model stands out due to its capability to record in both standard definition and high definition, making it suitable for various production requirements. One of its main features is its dual-slot P2 card system, which allows for hot-swappable memory cards, enabling uninterrupted recording and extended shooting times. This flexibility is invaluable in fast-paced production settings.

The AJ-SD930 is a more compact option, ideal for mobile applications. Like the AJ-SD955A, it supports both DV and DVCPRO formats, but it offers slightly fewer advanced features, focusing instead on portability and user convenience. The SD930 includes balanced audio inputs, a built-in LCD monitor, and a straightforward interface that allows for intuitive operation in the field.

Both models utilize MPEG-2 compression technology, providing high-quality video while minimizing file sizes. This is particularly important for content that demands efficient storage and fast transfer rates. Additionally, they support both 16-bit linear PCM audio and embedded audio recording, catering to professionals who require top-notch audio fidelity alongside their video.

The build quality of both the AJ-SD955A and AJ-SD930 is robust, making them suitable for rigorous use in various environments. The devices feature extensive connectivity options, including SDI and analog outputs, which facilitate seamless integration into existing production setups. This versatility ensures that users can adapt to different workflows with ease.

In conclusion, the Panasonic AJ-SD955A and AJ-SD930 are exemplary choices for professionals seeking reliable and high-quality video recording solutions. Their combination of innovative technology, flexibility, and durable design makes them indispensable tools for anyone serious about video production, whether in a studio or on location. With their ability to deliver outstanding performance while accommodating evolving industry standards, they remain relevant in the ever-changing landscape of professional videography.
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