XSYNC

The board for synchronizing the NEXUS system to analog video sources

The XSYNC board makes it possible to synchronize a NEXUS network with external video sources. This ensures that each video frame is always assigned exactly the same number of audio samples.

If exact synchronization of the NEXUS audio network to external video equipment is required, an XSYNC card is the ideal solution. At its video-in input, the card supports both bi-level and tri-level sync, which is often distributed separately in video systems. A composite filter is provided at the video-in input, which effectively suppresses any interference on the connected sync line.

Easy handling is ensured by the automatic recognition of the video formats, whose frame rate is set in relation to the audio sampling rate. The NEXUS system ensures that exactly the same number of audio samples are sent to each video frame and this is synchronized system-wide, and the board also has a word clock-in and out, which can be used to connect an external audio master clock or output the NEXUS audio clock. Of course, the termination at the input can be configured.

Inputs for word clock and video sync

The NEXUS network can be synchronized via the XSYNC card using word clock or video sync signals; dedicated inputs are provided for this purpose.

Automatic detection of the video format

When a video sync signal is connected, the XSYNC module automatically recognizes which format is present.

Support of Bi- and Tri-Level-Sync

The video input accepts a selection of different signals, such as composite, component. In addition, modern tri-level sync signals can also be used for synchronization.

Reconstruction of ground analog sync signals

A composite filter can be activated via a jumper to suppress interference from analog signals such as noise or voltage peaks.

Configuration option for 75 and 500 Ohm

To enable the serial connection of several loads to a word clock source, the input impedance can be adjusted from 75 to 500 ohms by jumper.

Filtering of noise and voltage peaks in the applied video signal

A composite filter is provided in the video input to suppress interference from analog signals.

Synchronization of NEXUS networks with analog video systems

The NEXUS audio network is often used in conjunction with video systems and therefore requires an interface for synchronization. The XSYNC board offers a variety of ways to synchronize the NEXUS system with analog video signals: Bi- and tri-level signals can be received via the BNC video input, which can be included in both an SDI and an HD video stream.

Connections

XSYNC_01

1 x 4TE

BNC	1x	SDI, HDSDI, 3G	Input
BNC	1x	Wordclock	Output
BNC	1x	Wordclock	Input

Technical specifications

video input

Design	galvanic isolation
Sensitivity	1 V nom. (0.5…2 VPP)
Impedance	75 ohm
Required stability	< ±100 ppm (typ. ±50 ppm, AES 11, Grade 2 compliant)
SD formats (NTSC, PAL)	525 lines interlaced, 59,94/60 Hz (NTSC) 525 lines progressive, 59,94/60 Hz (NTSC) 625 lines interlaced, 50 Hz (PAL) 625 lines progressive, 50 Hz (PAL)
HD formats (SMPTE 296M)	720 lines progressive, 50, 59,94 and 60 Hz
HD formats (SMPTE 274M, SMPTE 260M)	1035 lines interlaced, 59,94/60 Hz 1080 lines interlaced, 50, 59,94 and 60 Hz 1080 lines progressive, 23,98, 24, 25, 29,97, 30, 50, 59,94, 60 Hz

word clock input

Design	balanced, electrically separated
Sensitivity	TTL, 1…5 V
Impedance	75/500 ohm (jumper-configurable)
Sample rates	44,1 kHz, 48 kHz, 88,2 kHz, 96 kHz
Required stability	< ±150 ppm (typ. ±50 ppm, AES 11, Grade 2 compliant)

word clock output

Design	balanced, electrically separated
AC/DC coupling	jumper-configurable
Level	≥ 2.4 V on RL = 75 ohm
Impedance	75 ohm
Sample rates	44,1 kHz, 48 kHz, 88,2 kHz, 96 kHz
Frequency stability	min. ±10 ppm, typ. ±5 ppm (when using internal generator)

Operation conditions

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

Storage conditions

Temperature range	0 °C bis +50 °C (max. 70 °C Bauteiletemperatur)
max humidity	max. 90 %, non-condensing

Power supply

Voltage	+4,75...5,25 V
Currrent	ca. 0,3 A

Mechanical data

Weight

0,27 kg

NEXUS / NEXUS Star Technical specifications

XSYNC 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

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.

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.

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.

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.

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

Für individuelle Anforderungen wird die Karte mit einer Vielzahl von Steckverbindertypen angeboten: XLR, BNC, Cinch und optisch TOSLINK; Ausführungen mit RJ 45- und D-Sub-Steckverbindern führen installationsfreundlich alle Signalleitungen gemeinsam über den jeweiligen Steckverbinder.

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.

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.

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

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.

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.

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.

Base Units

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