Nevion AVA-MUX User Manual
AVA-MUX
Analog Video and Audio Embedder to Fiber
User manual
Rev. C
Nevion
Nordre Kullerød 1
3241 Sandefjord
Norway
Tel: +47 33 48 99 99
nevion.com
AVA-MUX Rev. C
Nevion Europe
P.O. Box 1020
3204 Sandefjord, Norway
Support phone 1: +47 33 48 99 97
Support phone 2: +47 90 60 99 99
Nevion USA
1600 Emerson Avenue
Oxnard, CA 93033, USA
Toll free North America: (866) 515-0811
Outside North America: +1 (805) 247-8560
E-mail: support@nevion.com
See http://www.nevion.com/support/ for service hours for customer support globally.
Rev.
Repl.
Date
Sign
Change description
C 2 2015-05-27
MB
Template update; DoC removed
2 1 2009-03-20
NBS
Total update, following from replacing discontinued
AAV-MUX with new AAV-SD-XMUX.
1 0 2007-10-15
AS
New front page.
0 - 2006-02-07
MDH
First release of product.
Nevion Support
Revision history
Current revision of this document is the uppermost in the table below.
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AVA-MUX Rev. C
Contents
1 Product overview ..................................................................................................... 4
1.1 AVA-MUX-C2 .................................................................................................................. 4
1.2 AAV-SD-XMUX(-T) .......................................................................................................... 4
1.3 ADC-SDI ......................................................................................................................... 4
1.4 Signal flow ....................................................................................................................... 5
2 Specifications .......................................................................................................... 6
2.1 Measurement conditions.................................................................................................. 6
2.2 General ........................................................................................................................... 6
2.3 Processing....................................................................................................................... 6
2.3.1 SD latencies AAV-SD-XMUX ........................................................................................ 6
2.3.2 SD latencies ADC-SDI .................................................................................................. 6
2.4 Inputs .............................................................................................................................. 6
2.4.1 Analog Video input ....................................................................................................... 6
2.4.2 Analog audio inputs ...................................................................................................... 7
2.4.3 Digital Audio Inputs ....................................................................................................... 7
2.4.4 Data inputs ................................................................................................................... 7
2.5 Outputs ............................................................................................................................ 7
2.5.1 SDI output .................................................................................................................... 7
2.5.2 Optical output ............................................................................................................... 8
2.5.3 Digital Audio outputs ..................................................................................................... 8
2.5.4 Data outputs ................................................................................................................. 8
2.5.5 GPI outputs .................................................................................................................. 8
2.6 Connector module ........................................................................................................... 9
2.6.1 AVA-MUX-C2 ............................................................................................................... 9
2.6.2 Mounting the connector module .................................................................................... 9
3 Configuration ......................................................................................................... 10
3.1 Video (ADC-SDI) ............................................................................................................10
3.1.1 DIP switches ................................................................................................................10
3.1.2 Monitoring and control of ADC-SDI with Gyda .............................................................11
3.2 Audio (AAV-SD-XMUX) ..................................................................................................11
3.2.1 DIP switch Configuration .............................................................................................12
3.2.2 GYDA Control ..............................................................................................................15
3.2.3 Data transmission ........................................................................................................16
4 Connections ........................................................................................................... 18
4.1 Audio connections DB25 ................................................................................................18
4.2 GPI/Data connections 8P8C Jack ...................................................................................19
5 Operation ............................................................................................................... 20
5.1 ADC-SDI LEDs ...............................................................................................................20
5.2 AAV-SD-XMUX LEDs .....................................................................................................20
5.3 GPI alarms .....................................................................................................................21
6 Laser safety precautions ........................................................................................ 22
General environmental requirements for Nevion equipment..................................... 23
Product Warranty ...................................................................................................... 24
Appendix A Materials declaration and recycling information..................................... 25
A.1 Materials declaration ......................................................................................................25
A.2 Recycling information .....................................................................................................25
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AVA-MUX Rev. C
1 Product overview
The AVA-MUX unit actually consists of three modules:
The AVA-MUX-C2 connector backplane.
The AAV-SD-XMUX(-T) AES and Analog Audio Embedder (with optical transmitter).
The ADC-SDI composite decoder to SDI converter.
1.1 AVA-MUX-C2
The AVA-MUX backplane has all the necessary connections for the audio and video signals.
It also has all of the inter-connections between the two processing cards. There are passive
loop-through connectors for the analog video inputs. Termination of the analog video inputs
is also configurable on the back panel.
1.2 AAV-SD-XMUX(-T)
The AAV-SD-XMUX is a highly integrated audio embedding module in the Flashlink range,
offering simultaneous embedding and de-embedding of audio from an SD serial video signal.
In the AVA-MUX application, the AAV-SD-XMUX can:
De-embed and embed all groups of audio.
Copy or move audio groups without additional delay.
De-embed 2 AES3 digital audio and non-audio signals.
Embed 2 AES3 digital audio and non-audio signals.
Embed 4 analog audio signals.
Apply sample rate converters when needed on the AES3 inputs.
Apply extra audio delay.
Swap stereo channels.
Make mono or sum from stereo signals.
Have optical laser output.
Transport asynchronous serial data.
Generate video and audio signals.
De-glitch correctly synchronized switched video.
The card has a serial digital video input and a serial digital video output. There is an optional
optical output with a choice of lasers that may be applied in point to point and CWDM
configurations.
1.3 ADC-SDI
The ADC-SDI is a high-quality 10-bit composite to digital video converter. The converter has
two inputs which it can use as two CVBS or one S-video inputs. The input mode can either
be locked or the card will scan the inputs and all formats until it finds a valid signal. The
ADC-SDI can be configured with switches on the unit, or via the GYDA control interface. The
ADC-SDI can generate a white pulse to mark field one of an 8-field-PAL/4-field-NTSC signal.
An intelligent composite encoder/ digital to analog converter (like the DAC-SDI) will encode
to the correct field (8-field-PAL/4-field-NTSC). This will reduce artifacts due to composite
decoding and re-encoding.
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AVA-MUX Rev. C
1.4 Signal flow
Figure 1: AVA-MUX signal flow
The analog video input signal type is identified. The synchronization information in the analog
signal is detected. The analog signal is digitized to a 10-bit parallel signal. An FPGA adds
EDH information and Field 1 marking. The signal is serialized and goes to the embedder
card. The video is de-serialized and passed to the embedding processor which inserts the
digital audio. The video signal is then re-serialized and sent to the electrical and optical
outputs.
The audio embedder module has two main processing blocks. One processes the video
stream and the packet data, the other processes the audio. The packet processing core
forms a group router which can route embedded audio between groups without any extra
delay.
The AAV-SD-XMUX audio core is an AES3 stereo audio router. The received embedded
audio and the audio inputs are the sources in the router. The embedded output groups and
AES3 outputs are the destinations. This feature may also be used to perform stereo channel
swapping.
Four stereo delay lines are also available in the router with a total combined delay of 1.25s.
Audio processing is possible within each stereo output. The channels may be changed
allowing L/R swapping, mono assignment, summing, MS conversion and phase reversal of
one of the signals.
There are two embedding modes:
Non-SRC mode: The AES3 input signals are embedded transparently.
Automatic mode: The module will use sample rate converters when necessary.
Data signals such as Dolby E will always be embedded transparently without using the
sample rate converters.
All embedding and de-embedding is performed with synchronous 48 kHz audio.
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AVA-MUX Rev. C
Audio Sampling rate:
48 kHz.
Ambient temperature:
25ºC.
Measurement bandwidth:
20 Hz-20 kHz.
Detector:
RMS.
Input overload level (0 dBFS):
+18 dBu.
Power, AAV-SD-XMUX:
+5V DC / 0.7A, 3.5W
+/-15V DC / 0.017A, 0.5W.
Power, ADC-SDI:
+5V DC / 0.44A, 2.2W
-15V DC / 0.046A, 0.7W.
Control:
DIP switches, Gyda system controller.
Monitoring:
Front panel LED’s and GYDA system controller.
EDH processing:
Full. Received flags are updated; new CRCs are
calculated.
Embedding level:
SMPTE S272M C – Synchronous audio at 48 kHz
and extended data packets. (24 bit optional).
Embedded audio word length:
Configurable 20 or 24 bits.
Video processing word length:
10 bits.
Total Audio Delay:
To be measured.
Total Video Delay:
To be measured.
Video:
des+4+350+256+2+ser video samples = 45.3us.
Audio embedding:
AES+2+1+16 audio samples=20/48000 = 417us.
Audio de-embedding:
4+16+1 audio samples =21/48000 = 438us.
Embedding data GPI mode:
8+4+32 96kHz samples =44/96000 = 458us.
Embedding data UART mode:
32+128+17+16 96kHz samples =193/96000 = 2.01ms.
De-embedding data GPI mode:
8+32+8 96kHz samples =44/96000 = 458us.
De-embedding UART mode:
8+32+8 96kHz samples =48/96000 = 458us.
Video:
2 video lines.
Format:
PAL, NTSC, S-Video.
Video frame rate:
50 Hz or 60 Hz.
Impedance:
75 ohms.
Return loss:
>40dB up to 5.75 MHz.
Signal level:
1V.
Connectors:
BNC.
Termination configuration:
DIP switches on backplane.
2 Specifications
2.1 Measurement conditions
2.2 General
2.3 Processing
Video latency is variable due to the de-glitcher but the values below apply when the video
signal is first applied. Other latency values are maximum values.
2.3.1 SD latencies AAV-SD-XMUX
2.3.2 SD latencies ADC-SDI
2.4 Inputs
2.4.1 Analog Video input
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AVA-MUX Rev. C
Number of inputs:
4.
Sampling frequency:
48 kHz.
Differential input impedance:
24 kohm.
Common mode input impedance:
50 kohm.
Connector:
DB-25F (Female with UNC threads).
Maximum signal level (0 dBFS):
+12, +13.5, +15, +16.7, +18, +20, +21 or +24dBu.
Level precision:
+/- 0.1dB where Zsource < 40 ohm.
Common mode voltage tolerance:
+/- 30V – (Maximum peak signal level).
Frequency response:
20 Hz – 20 kHz 0.1 dB.
Pass-band ripple:
+/- 0.005 dB.
Stop band attenuation:
80 dB.
Dynamic range1:
Min. 103 dB (A), typical 107 dB (A).
THD+N @ -1 dBFS:
Max. -90 dB, typical -96 dB.
Intermodulation distortion2:
Max. -90 dB, typical -95 dB.
Crosstalk:
Max. -90 dB, typical -99 dB.
CMRR (20 Hz – 15 kHz):
Max. 70 dB @ 15 kHz, typical -90 dB @ low
frequencies.
Number of AES3 inputs:
2.
Audio data rate:
30 kHz to 200 kHz, converted to 48 kHz if not 48 kHz
and isochronous to the video input signal.
Input impedance:
110 ohms transformer balanced.
Connector (C1 backplanes):
DB-25F (Female with UNC threads).
Embedded audio word length:
20 or 24 bits.
Embedded audio Channel Status:
As received when isochronous, otherwise fixed.
Sample rate converter dynamic
range:
139 dB (A) @ 1kHz.
RS422:
1.
Connector:
8P8C Modular jack.
UART mode:
Baud rates:
9600 to 115200.
Data length:
7 or 8 bits.
Parity:
None, odd or even.
Stop bits:
1, 1.5 or 2 bits.
GPI mode:
Raw data sampling frequency:
93750 Hz.
Video Data rate:
270Mbps.
Number of SDI outputs:
1.
Connector:
BNC.
Impedance:
75 ohms.
Return loss:
> 15dB @270MHz.
Signal level:
nominal. 800mV.
Rise/fall time:
typically 650ps.
1
2
2.4.2 Analog audio inputs
2.4.3 Digital Audio Inputs
2.4.4 Data inputs
2.5 Outputs
2.5.1 SDI output
|THD+N of -60 dBFS 1 kHz signal| + 60.
Signal at -12 dBFS, SMPTE 4:1 60 Hz + 7 kHz.
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AVA-MUX Rev. C
Transmission circuit fiber:
Single Mode.
Optical wavelength (ver. 13T):
1310nm ±40nm.
Optical power:
-7.5 dBm.
Optical power (option):
0 dBm.
Optical wavelength (ver. 15T):
1550nm ±40nm.
Optical power:
0 dBm.
Optical wavelength (ver. C1xxx):
1270, 1290, 1310, 1330, 1350, 1370, 1390, 1410,
1470, 1490, 1510, 1530, 1550, 1570, 1590, 1610nm
±6nm; as per ITU-T G.694.2.
Optical power:
0 dBm
Jitter (UI=unit interval):
Max. 0.135 UI
Return loss:
Typ. > 40 dB
Maximum reflected power:
4%
Connector:
SC/UPC
Number of AES3 outputs:
2.
Audio data rate:
48 kHz.
Impedance (C1 backplanes):
110 ohm transformer balanced.
Connector (C1 backplanes):
DB-25F (Female with UNC threads).
Number of RS485 outputs
1.
Connector
8P8C Modular jack.
Signals:
Power status good, no video input lock, laser failure.
Connector:
8P8C Modular jack.
Signal type:
Open drain transistor with free-wheel diode.
Maximum voltage:
100 V.
Maximum current:
150 mA.
2.5.2 Optical output
2.5.3 Digital Audio outputs
2.5.4 Data outputs
2.5.5 GPI outputs
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