XER

The Cost-Effective AES/EBU Input Card for NEXUS Base Devices

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.

Description:

The XER cards provide connections for up to four two-channel digital AES/EBU signals. The signal processor integrated on the board makes it easy to handle the signals: the digital gain allows the level to be adjusted by ±20 dB; a fast limiter connected downstream ensures that the level cannot be exceeded, and with the phase inverter it is possible to invert the polarity of the signal if necessary. The sampling rate converter at each input makes it easy to receive and convert incoming data streams of any sampling frequency. Of course, a NEXUS system is capable of synchronizing the system clock to any digital input in reverse. The user bits contained in the AES/EBU data stream can be transmitted transparently throughout the system, which allows external systems from third-party manufacturers, such as command systems, to be wired via the NEXUS network and integrated with NEXUS.

The XER card with the legacy mode, which supports sampling rates of up to 192 kHz, meets the requirements for top-quality transmission. The XER board is also certified for the transmission of Dolby E signals. In a NEXUS system, Dolby E data streams can be transparently transported to AES/EBU outputs, distributed and output, decoded in the system and treated as separate audio signals.

XER NEXUS boards can be supplied with different front panels to fit seamlessly into any application scenario. Versions with XLR, BNC, RCA, Toslink, RJ45, or D-Sub connectors are available.

Features:

Available with XLR, BNC, Sub-D, RJ45, Cinch or Toslink Connectors

This module can optionally be supplied with different front panels, the electrical conversion remains the same. XLR sockets are suitable for constantly changing setups, while the Sub-D version is suitable for permanently wired installations. With the RJ45 variant, the four channels are connected to a socket and enable fast and cost-effective cable laying with conventional Cat5 cables (or better). The board is also available with the interfaces Cinch and Toslink, which are intended for receiving the consumer format S/PDIF.

Support of S/P-DIF Signals

Since the professional AES/EBU signal and the consumer format S/PDIF differ only in the electrical level, both formats can be received.

Adjustable Digital Gain

All inputs can be amplified or reduced by 20dB. A switchable limiter protects against overload.

Optional Sample Rate Converter

The optional sample rate converters in the inputs can be switched on manually or operated in auto mode; the board then automatically detects whether the incoming frequency corresponds to the NEXUS system clock.

Transparent Transmission of Additional Data in the AES3 Data Stream

The NEXUS network is able to transparently transmit an AES3 data stream including the additional data. If no data is available in transparent mode, Nexus internal data is output. In the case of additional data on only one channel, the data is taken over by the other channel.

Support of Legacy 96 / 192 kHz Audio Signals on both AES3 Channels

AES3 data in legacy format can be accepted and transferred by the XER card. They are available to the system as normal mono signals. Alternatively, they can also be transmitted unprocessed, transparently in the NEXUS system and output by an XET module.

Transparent Transmission of Compressed Audio Signals

The NEXUS XER board is able to transmit compressed signals that do not contain a linear PCM signal and output them elsewhere. Such data streams are automatically detected and can be muted by inserting a jumper.

Certified for Dolby-E Transmission

The XER card is certified for Dolby E data stream transmission by Dolby Laboratories, Inc. The signals can be transmitted via the NEXUS network to the XET, XHI or XMF boards and output there.

Technical Specifications :

Connections

Variant: XLR

1 x 8TE

XLR female

AES/EBU, S/PDIF

Input

Variant: BNC

1 x 4TE

BNC

AES/EBU, S/PDIF

Input

Variant: RJ45

1 x 4TE

RJ45

AES/EBU, S/PDIF

Input

Variant: Cinch

1 x 4TE

Cinch

AES/EBU, S/PDIF

Input

Variant: D-Sub

1 x 4TE

D-Sub 15 Socked female

AES/EBU, S/PDIF

Input

Variant: Toslink

1 x 4TE

Toslink

AES/EBU, S/PDIF

Input

Technical Specifications

Data Formats

Audio data	24-bit (w/ and w/o SRC)
Sample rates	44.1, 48, 88.2, 96 kHz (w/o SRC); approx. 30…200 kHz (w/SRC)
Ancillary data	Evaluation and transparent forwarding of AES/EBU ancillary information: professional/consumer mode, audio/non-audio mode, emphasis mode, mono/stereo mode, copy-protection status, CRC status, original/copy
Error evaluation	Parity error, confidence error, bi-phase error, PLL not locked, slipped sample
Non-audio	Non-audio formats are transparently forwarded. DTS-CD, DTS-LD, Dolby-E and IEC 61937 (AC3, DTS, and MPEG) are detected.

Channel Configuration

	Phase inversion
	Preset limiter
	Gain
	Separately enabled sample-rate converter (option)

Inputs XER-X, XER-DSUB, XER-BNC, XER-RJ

Phase	Free phase offset to system clock
Input	Balanced; floating transformer isolation
Impedance	110 ohm (BNC: 75 ohm)
Ground bonding	liftable (using jumper)
Gain	–20…20 dB

Inputs XER-O

Connector	TOSLINK/DNP (100 kHz max.)
Phase	Free phase offset to system clock

Input Parameter

Dielectric strength	±7 V (typ.), –7…12 V (max.)
Input impedance	110 ohm (XLR, typ.); 75 ohm (RCA, typ.)
Input signal, Recommended eye diagram:

Limiter

Threshold	–0,06 dBFS
Attack Time	0 samples
Hold Time	10 ms
Release Time	0,5 s
Ratio	limiter

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	480 mA

Mechanical Data

Weight

0,26 kg

Downloads :

NEXUS / NEXUS Star Technical specifications

XER 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