XSDI

The Embedder/Deembedder Board for Audio in SDI Video Signals

With the XSDI card, audio signals can be extracted from a digital SDI video data stream, replaced and simultaneously embedded again.

With the XSDI card, audio signals can be extracted from a digital SDI video data stream, replaced and simultaneously embedded again. The XSDI video card is an audio de-embedder and embedder for video signals according to the SMPTE-259M (SDI) standard. All 16 audio channels packed in the video data stream can be read and written. Different modes such as De-Embed, Embed, Replace, Bypass and Delete allow flexible handling of the embedded audio data. The unpacked channels can be used freely in the NEXUS routing matrix. To be able to adjust the levels as soon as you enter the system, a DSP is provided on the module. The image-sound offset that occurs during separate audio-video processing can be compensated by means of delay. Requantisation can be activated for audio formats with a different word width, such as 20 or 16 bit. Dithering and noise shaping are of course available. An integrated video test image generator helps when setting up new systems or troubleshooting.

The XSDI board is available in two versions: with three BNC connectors for Video In and 2x Video Out and alternatively with a BNC input, a BNC output and a bidirectional SFP port, which connects to an optical fiber with LC-duplex connectors using various modules. Optionally, the board can be equipped with sample rate converters to operate the NEXUS system in a different clock to the audio signals from the video source.

Adjustable Digital Gain in the Inputs

To adjust the levels, a digital gain is implemented for each channel of the inputs.

Adjustable Delay for Delay Compensation Compared to the Video

An adjustable delay can compensate for the image/sound offset that can result from separate processing.

Integrated Test Pattern Generator

Setup or troubleshooting supports an integrated test generator that generates a color bar in NTSC or PAL format. The pattern is output via the BNC or fiber optic connector.

Integrated DSP

If the word width is reduced during requesting, an integrated DSP calculates a dither to reduce rounding errors. Switchable noise shaping shifts the noise energy in the ear in less sensitive areas.

Optional Sample Rate Converter

Optionally, a sampling rate converter can be installed on the XSDI board to process incoming and outgoing signals asynchronously to the Nexus clock.

Connections

Variant: XSDI_BNC

1 x 4TE

BNC

SDI Embedded

Output

BNC

SDI Embedded

Input

Variant: XSDI_O

1 x 4TE

FSP

SDI Embedded

bidirectional

BNC

SDI Embedded

Output

BNC

SDI Embedded

Input

Technical Specifications

Characteristics

Data formats	Embedded audio as specified by SMPTE 259Mand SMPTE 272M-A, -C
Audio data	16 / 20 / 24-bit; officially certified by Dolby® for Dolby E signal transmission
Sample rates	48 kHz acc. to SDI 44,1 kHz and 96 kHz via Sample Rate Converter (only XSDI02)
Data rate	270 Mbit
Note	Due to the high data rate, only high-quality cabling with appropriate bandwidth and defined impedance (75 ohm) must be used.

BNC Input

Equalizer gain (max.)	40 dB
Jitter tolerance	0.56 UIpp (typ.) @ 270 Mbps
Impedance	75 ohm

Electrical Output BNC

Output voltage	800 mVPP (typ.)
Impedance	75 ohm
Delay	0…170 ms @ 48 kHz; adjustable in 1-ms steps (XSDI02 only)

Input Optical LC

Type	Single-Mode SM
Cable length	15 km/9.32 miles (max.)
Optical sensitivity	–28…–8 dBm
Attenuation (max.)	0…13 dB (total attenuation caused by cable, connector, switch, and lines)

Output Optical LC

Type	Single-Mode SM
Cable length	15 km/9.32 miles (max.)
Wavelength	1274…1356 μm
Optical output power	-15...-8 dBm @ 9/125 μm fiber

Operation Conditions

Temperature range	0° C to +50° C
Max humidity	max. 90 %, non-condensing

Storage Conditions

Temperature range	–35° C to +70° C
Max humidity	max. 90 %, non-condensing

Power Supply

Voltage	+4,75…5,25 V
Currrent	600 mA

Mechanical Data

Weight

0,26 kg

NEXUS / NEXUS Star Technical Specifications

XSDI Technical Specifications

Analogue Audio Components

XAD+

The XAD+ board is designed for connecting analog signal sources with line levels. The board offers eight inputs, is available with different connectors and uses the patented TrueMatch converter for outstanding audio values.

XDA+

The XDA+ board is intended for connecting devices that require an analog line level at the input. The board has eight outputs, is available with different connectors and offers outstanding audio values.

XMICplus

The XMIC+ microphone input board features eight TrueMatch® 32-bit converters, each with a 4-channel active microphone splitter. Each of the channels has separate gain control, adjustable impact sound filters and a phase inverter and works in a permanent self-monitoring and self-calibration.

HXAD

HXAD NEXUS cards offer eight analog stereo line inputs (16 audio channels). Versions with D-Sub or RJ45 connectors are available, which are particularly suitable for applications that require small sizes with high audio quality at the same time.

HXDA

The HXDA board is designed for the output of analog, 2-channel signals with line level. With 16 audio channels on only 4HP, it is suitable for fixed installations requiring a large number of output channels, for example.

Digital Audio Components

XFIP

With the XFIP card it is possible to connect AoIP networks to the NEXUS system.

XDIP

The XDIP card establishes the connection between Dante and NEXUS networks. With four Ethernet ports, it operates as a switch and supports redundant Dante connections.

XSDI

With the XSDI card, audio signals can be extracted from a digital SDI video data stream, replaced and simultaneously embedded again.

XHDI

With the XHDI card, audio signals can be extracted from an HDSDI digital video stream, replaced and simultaneously embedded again.

XDEE

The XDEE board series is designed as Dolby-E output board for the NEXUS system. It supports all features provided in the Dolby specifications and supplements them with useful options such as auxiliary sync generation to allow limited operation even if video sync is missing.

XDED

The XDED board series is designed as Dolby-E and Dolby-D input board for the NEXUS system. It supports all features provided in the Dolby specifications and supplements them with useful options such as auxiliary sync generation to allow limited operation even if video sync is missing.

HXETR

The small size with a high number of AES3 inputs and outputs makes the HXETR cards ideal for applications where many external devices have to be connected to a NEXUS system via AES/EBU signals in the smallest of spaces. 8 inputs and 8 outputs together make 32 audio channels.

XETR

The XETR AES/EBU boards combine four 2-channel digital inputs and four 2-channel digital outputs on one NEXUS board. Versions with only inputs and outputs are available; versions with XLR or BNC connections offer great structural flexibility.

XER

The XER card is the digital gateway to the NEXUS world by receiving and evaluating AES/EBU data streams. A pragmatic operating concept ensures pleasant handling.

XER-M

The XER-M module is intended for connecting digital microphones.

XET

For individual requirements the card is offered with a variety of connector types: XLR, BNC, Cinch and optical TOSLINK; versions with RJ 45 and D-Sub connectors allow all signal lines to be routed together via the respective connector in an installation-friendly manner.

XAF

With an XAF card it is possible to integrate devices with a Toslink optical port in 8-channel ADAT format into a NEXUS network. The card has an input and an output and processes a total of 16 audio channels.

XMF

The XMF MADI card provides a simple, powerful solution for connecting a NEXUS system to MADI equipment anywhere.

XTF

With the XTF card, Stage Tec provides an I/O card that supports the TASCAM multi-track format. With eight input and eight output audio channels and an optional sample rate converter, the board supports high-quality signal transfer between the NEXUS network and connected TASCAM devices.

DSPs- & Controllers Component

System Components

NEXUS Star Components

RIF67

With the RIF67 card it is possible to connect up to eight AoIP networks to a NEXUS system. AES67 and Ravenna are supported. The RIF67 cards are available in four versions: with 2, 4, 6 or 8 active ports. A total of 256 audio channels can be output in IP streams. Depending on the expansion level of the board, 8 channels (RIF67-1) down to 2 channels (RIF67-4) can be bundled per stream.

RMDQ

The RMD cards form the scalable DSP of the first generation for Stage Tec's large digital mixing consoles of the AURUS and CRESCENDO families. As development progressed, they were replaced by the RMDQ card generation.

RCX

The RCX card is the central unit in the NEXUS Star Router. It manages the device and provides the internal matrix with 4,096 x 4,096 crosspoints. External control systems can be connected to the NEXUS network via various interfaces. The RCX card can be redundantly equipped, which is what the safety concept of the NEXUS system is all about.

RFOC

The RFOC card is the counterpart to the XFOC network cards in NEXUS base devices. Standard SFP modules allow the very flexible integration of the Star Router into NEXUS networks of any topology. Due to the high switching capacity of the Star Routers, RFOC cards can be used to form a star point in the network, via which many basic devices can be connected to each other centrally.

RMF

The RMF MADI card is the consistent scaling of the XMF MADI card for NEXUS base devices. As a router card, it allows up to four MADI universes to be integrated into a NEXUS network. The four ports, both BNC and SFP ports for LC-duplex fiber optics, are connected directly to the matrix of the Star Router and can be routed from there system-wide.

RSYNC

The RSYNC board supports special applications that require a larger number of different sync inputs and/or outputs. Among them is a BNC input for video genlock or blackburst, which supports both bi-level and tri-level sync.

RMC

The RMC card is the heart of every AURUS or CRESCENDO mixer. It handles every single operation, manages the mixer projects and controls the entire data exchange between the console interface, the NEXUS network and the DSP cards assigned to the console. Up to two mixing console surfaces can be connected to one RMC card. In addition, there are connections for time code, MIDI and other controls such as RAS.

RMCQ

The RMCQ card is the heart of the new AVATUS IP mixing consoles from Stage Tec. It handles every single operation, manages the mixer projects and controls the entire data exchange between the console interface, the NEXUS network and the DSP cards assigned to the console.

Base Devices

Optical Multiplexer

AVATUS	Analogue-Audio-Components
AURUS platinum	Digital-Audio-Components
CRESCENDO platinum	DSPs- & Controllers-Component
AURATUS platinum	System-Components
ON AIR flex	NEXUS Star-Components
	Base Units
	OMUX Optical Multiplexer