Nevion UDC-3G-XMUX4+ User Manual

UDC-3G-XMUX4+

3G/HD/SD-SDI Format and Standard converter

with Frame Synchronizer and 4x AES I/O

User manual

Rev. C

Nevion Europe, P.O. Box 1020, 3204 Sandefjord, Norway

Tel: [phone] – Fax: [phone] – www.nevion.com

Nevion HQ:

UDC-3G-XMUX4+ Rev. C

Nevion Europe
P.O. Box 1020

3204 Sandefjord, Norway
Support phone 1: [phone]
Support phone 2: [phone]

Nevion USA

1600 Emerson Avenue

Oxnard, CA 93033, USA

Toll free North America: [phone]

Outside North America: [phone]

E-mail: [e-mail]

See http://www.nevion.com/support/ for service hours for customer support globally.

Rev.

Repl.

Date

Sign

Change description

C 2 2013-01-08

JD/TB

Added ch 1.3.1 on how to upgrade by software key.
Added ch 3.23.3 on SMPTE 2010 and ch 3.23.4 on
SMPTE 2020.

2 1 2012-08-09

JD

Added spec for 3G in Appendix B.
Added min/max audio delay in ch 3.17 and in specs.

1 0 2012-06-26

TB

New ch 2.1 on power consumption. Updated power
consumption figures under specifications, and
removed references to products CRC/UPC.

0 - 2012-05-22

TB

Initial version

Nevion Support

Revision history

Current revision of this document is the uppermost in the table below.

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UDC-3G-XMUX4+ Rev. C

Contents

Revision history .......................................................................................................... 2

Contents ..................................................................................................................... 3

1 Product description .................................................................................................. 5

1.1 The core functionality ...................................................................................................... 5

1.2 Secondary functionality ................................................................................................... 5

1.2.1 Standard conversion ..................................................................................................... 5

1.2.2 Frame synchronizer ...................................................................................................... 5

1.2.3 De-glitcher .................................................................................................................... 5

1.2.4 Audio embedder/de-embedder with audio matrix and processing ................................. 6

1.2.5 Four AES I/O ports ....................................................................................................... 6

1.2.6 Audio delay lines .......................................................................................................... 6

1.2.7 Closed Caption CEA708/CEA608 and time code support ............................................. 6

1.2.8 Input change-over with fallback to internal generators .................................................. 6

1.2.9 Multiple SDI outputs ..................................................................................................... 6

1.2.10 In-monitor label inserter .............................................................................................. 6

1.2.11 Long-haul optical input ................................................................................................ 6

1.2.12 Video processing ........................................................................................................ 6

1.2.13 EDH processing .......................................................................................................... 6

1.3 Product variants and how they differ ................................................................................ 7

1.3.1 How to apply a software key that enables new options ................................................. 7

2 How to get started ................................................................................................. 11

2.1 Power requirements .......................................................................................................11

2.2 Physical connections ......................................................................................................11

2.2.1 Sync input ....................................................................................................................12

2.2.2 GPI outputs (alarms) ...................................................................................................12

2.2.3 GPI inputs ....................................................................................................................12

2.2.4 Data link output lines ...................................................................................................13

2.3 What the LEDs mean .....................................................................................................13

2.3.1 Exceptions/special conditions for the LEDS .................................................................14

2.4 Selecting between Gyda mode or Manual mode ............................................................14

2.5 The very brief guide to Manual mode set-up ...................................................................15

2.6 The very brief guide to Gyda mode set-up ......................................................................15

2.7 How to get back to factory defaults? ...............................................................................17

3 Detailed control ...................................................................................................... 18

3.1 Detailed control in manual mode ....................................................................................18

3.1.1 Rotary switch and push buttons ...................................................................................18

3.1.2 DIP switch functions ....................................................................................................18

3.1.3 Factory reset function ..................................................................................................20

3.2 Detailed control in Gyda mode........................................................................................21

3.2.1 Information page ..........................................................................................................21

3.2.2 Configuration page ......................................................................................................22

3.3 Data path ........................................................................................................................25

3.4 Video input selection ......................................................................................................25

3.5 De-glitcher ......................................................................................................................26

3.6 The scaling blocks ..........................................................................................................26

3.6.1 Motion adaptive de-interlacer.......................................................................................26

3.6.2 Format and standard converter block ..........................................................................26

3.6.3 Aspect Ratio Converter block ......................................................................................27

3.6.4 Automatic scaling modes .............................................................................................27

3.6.5 Pre-defined settings .....................................................................................................32

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UDC-3G-XMUX4+ Rev. C

3.6.6 User defined settings ...................................................................................................32

3.6.7 Selecting Default scaling by GPI ..................................................................................33

3.7 Frame synchronizer ........................................................................................................34

3.7.1 Frame sync mode ........................................................................................................34

3.7.2 Frame delay mode .......................................................................................................35

3.8 Video generator ..............................................................................................................35

3.9 Label generator ..............................................................................................................36

3.10 Video processing block .................................................................................................36

3.10.1 Gain and offset ..........................................................................................................36

3.10.2 Video payload legalizer ..............................................................................................36

3.11 Color space conversion ................................................................................................36

3.12 Video filters ...................................................................................................................37

3.13 EDH processing block ..................................................................................................37

3.14 Video output selection ..................................................................................................37

3.15 Audio blocks overview ..................................................................................................38

3.16 Audio de-embedder ......................................................................................................38

3.17 Audio delay ...................................................................................................................38

3.18 Audio cross point matrix ...............................................................................................39

3.19 AES I/O ........................................................................................................................40

3.19.1 Audio inputs ...............................................................................................................40

3.19.2 Audio outputs ............................................................................................................40

3.20 Audio generator ............................................................................................................40

3.21 Audio processing block .................................................................................................40

3.22 Audio embedder ...........................................................................................................41

3.23 Ancillary packet transport .............................................................................................42

3.23.1 Time Code .................................................................................................................42

3.23.2 Closed Caption ..........................................................................................................42

3.23.3 SMPTE 2010/SCTE 104 ............................................................................................42

3.23.4 SMPTE 2020 .............................................................................................................43

Appendix A RS422 commands ................................................................................. 44

A.1 FLP4.0 required commands ...........................................................................................44

A.2 Normal control blocks .....................................................................................................45

A.3 Commands intended for debug/lab use only ..................................................................53

Appendix B Specifications ........................................................................................ 54

Appendix C General environmental requirements for Nevion equipment ................. 56

Appendix D Materials declaration and recycling information .................................... 57

D.1 Materials declaration ......................................................................................................57

D.2 Recycling information .....................................................................................................57

Product Warranty ...................................................................................................... 58

EC Declaration of Conformity ................................................................................... 59

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UDC-3G-XMUX4+ Rev. C

SDI

OPTICAL

IN

SDI

ELECTRICAL

IN

SDI OUT

16 ch Audio

De-embedder

16 ch Audio

Embedder

Audio x-point

Reclocker /

De-serialiser

x-point

Frame Sync

w/ Video

generator

Deglitcher

Format

Converter w/

Motion

Adaptive

Deinterlacer

Audio
Delay

Audio Tone

Generator

SDI OUT
SDI OUT
SDI OUT

4 AES OUT

4 AES IN

4 AES Selectable I/O CTRLAudio SRC

Genlock

REF

Control

GPI

GYDA

RS422

Decoder

RS422

OUT

BYPASS

Video

Processing /

Gain /

Label insert

AFD / WSS /

VI

De-embedder

AFD / WSS /

VI

Embedder

Audio

processing

1 Product description

Figure 1: Simplified block diagram of the UDC-3G-XMUX4 card

1.1 The core functionality

The UDC-3G-XMUX4 is a format and standard converter that can convert between all the
common SD, HD and 3G level A video standards. As part of the conversion, the aspect ratio,
the crop, or the position of the output picture can also be altered. This process can be fully
automated by AFD, WSS, WSS-EXT, or VI in combination with 12 built-in conversions, or the
user can take full manual control by selecting between 12 built-in conversions and 12 fully
configurable custom conversions.

Motion adaptive de-interlacing is used to ensure optimal picture quality.
The UDC-3G-XMUX4 comes in the standard Flashlink form factor and it is designed to be

used with Multicon Gyda, the Nevion system controller. A subset of the configuration
parameters can also be controlled by onboard switches, enabling stand-alone operation.

1.2 Secondary functionality

1.2.1 Standard conversion

The UDC-3G-XMUX4 can be used for standard conversion, i.e. conversion between 50 Hz
and 60 Hz / 59.94 Hz time bases. The motion adaptive de-interlacing ensures a remarkably
artefact-free output for this class of converter.

1.2.2 Frame synchronizer

The UDC-3G-XMUX4 has a built-in frame synchronizer. It can synchronize the SDI output to
a traditional black & burst reference or to a tri-level sync reference. The SDI output can be
phase adjusted relative to the sync signal. No additional frame delay is available for the
UDC-3G-XMUX4.

1.2.3 De-glitcher

The UDC-3G-XMUX4 comes with a built-in de-glitcher for continuous and seamless output.
This will clean up line errors due to up-stream switching or other signal glitches. The output
even remains error-free with change of input formats.

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UDC-3G-XMUX4+ Rev. C

1.2.4 Audio embedder/de-embedder with audio matrix and processing

The UDC-3G-XMUX4 comes with full embedder/de-embedder capabilities. The audio
embedded on the SDI is de-embedded and can be delayed relative to the video. Each audio
stereo pair can be swapped in a matrix before being embedded back into the SDI stream.

1.2.5 Four AES I/O ports

The UDC-3G-XMUX4 comes with four bidirectional AES ports. Bidirectional means that each
port can be configured to be either an input or an output. The direction can be set
independently for each of the four ports and they will then work as inputs or outputs to the
audio matrix. The AES I/O ports are an optional feature.

1.2.6 Audio delay lines

Each AES port comes with its own delay line, which means that the audio can be given a
(positive or negative) delay relative to the video. A common delay setting is also provided for
the eight embedded channels. The delay lines make it easy to pre-compensate for the delays
incurred by external audio processors such as Dolby E.

1.2.7 Closed Caption CEA708/CEA608 and time code support

The UDC-3G-XMUX4 will transport closed caption and time code packages between input
video standard and the output video standard. In the process it will convert and transform the
packages as necessary to confirm to the output video standard.

1.2.8 Input change-over with fallback to internal generators

The UDC-3G-XMUX4 comes with an electrical SDI input and an additional (optional) optical
input. Sophisticated input selection logic can switch between the physical input when a signal
is available, and also switch to one of several internal video generators in the event that no
physical input is present.

1.2.9 Multiple SDI outputs

The UDC-3G-XMUX4 comes with four BNC SDI outputs organized as two pairs of
inverting/non-inverting outputs. Each pair of outputs can be taken from the processed video
output, or directly from the input (reclocked only) for monitoring purposes.

1.2.10 In-monitor label inserter

The UDC-3G-XMUX4 comes with a built-in label-inserter that can be used to add a
identifying text string in active video, either permanently or only when the module has lost its
expected input and has reverted to a fallback generator.

1.2.11 Long-haul optical input

The UDC-3G-XMUX4 can be equipped with an optional 9/125µm single mode optical input
for long-haul applications.

1.2.12 Video processing

The UDC-3G-XMUX4 comes with luma/chroma gain and level adjustment and spatial low­pass filters. The low-pass filters can be a useful tool to control the bandwidth of the input to
video compression equipment.

1.2.13 EDH processing

The UDC-3G-XMUX4 always does EDH processing.

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UDC-3G-XMUX4+ Rev. C

 Nevion option code

Hardware
(select one)

UDC-3G-XMUX4+
UDC-3G-XMUX4-R+
UDC-3G-XMUX4-R-L+

+

Input formats
(select at least one)

UDC OPT input 3G
UDC OPT input HD
UDC OPT input SD

+

Output formats
(select at least one)

UDC OPT output 3G
UDC OPT output HD
UDC OPT output SD

+

AES inputs/outputs

UDC OPT AES I/O

1.3 Product variants and how they differ

The base variant of the UDC-3G-XMUX4 comes with a single electrical input. An optional
optical short-haul or long-haul receiver can be added. The short-haul receiver version is
denoted with an –R appended to its name. The long-haul receiver version is denoted with an
–R-L appended to its name.

The base variant of the UDC-3G-XMUX4 does not have the AES I/O ports enabled. AES I/O
capabilities must be ordered as a factory option or purchased as a software key upgrade at a
later time.

The base variant of the UDC-3G-XMUX4 comes without SD/HD/3G input capabilities and
also without SD/HD/3G output capabilities. SD, HD and/or 3G input capabilities must be
ordered as a factory option or purchased as a software key upgrade at a later time. The
same goes for SD, HD and/or 3G output capabilities. This means that if the customer wants
to buy a pure HD-to-3G upscaler, she will only have to buy the HD input capability and the
3G output capability. Naturally, this also means that at least one set of input capabilities and
one set of output capabilities must be added to the ‘naked’ hardware to get a useful module.

The following table summarizes the ordering options available (for prices, please contact
Nevion or an authorized Nevion dealer):

At the bottom of the information page (the ‘front page’) of the module in Multicon GYDA a line
will show which features are enabled:

This example shows a module with all optional features present.

1.3.1 How to apply a software key that enables new options

1) In Multicon Gyda, navigate to the UDC-3G-XMUX4+ module in question by first
pressing the frame symbol and then pressing the icon for the UDC-3G-XMUX4+. In

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Table 1: Available options

UDC-3G-XMUX4+ Rev. C

the example picture below, two such modules are present in the same frame, and the
one in slot 1 has been selected.

Figure 2: A frame with two UDC-3G-XMUX4+ modules

2) Check which features are already enabled in the module. At the bottom of the

information page that is now shown will be a line that says “Purchased features”,

which lists the enabled input formats, the output formats, and finally whether the AES
I/O has been enabled or not. In the examples shown here, all optional features are
already enabled and no further upgrades are available.

Figure 3: How to see purchased features, new Multicon Gyda

Older versions of Multicon Gyda cannot display the line “Purchased features”
properly, the words “In:”, “Out:” and “AES” will be missing.

Figure 4: How to see purchased features, older Multicon Gyda

If for instance “3G” should be missing from the input or output lists, or the AES option
says “No”, these features can be purchased as a software key upgrade.

3) If the customer decides to buy a feature upgrade, Nevion will need both the serial
number of the module to be upgraded and a list of the new features the customer
wishes to purchase for it.
The serial number can be found on the very bottom of the configuration page for the
module (To navigate between the information page and the configuration page, press
the “i” symbol and the wrench symbol, respectively).
Each new input format format or output format has its own order number in the price
list, as does the AES I/O option.

Figure 5: Where to find the serial number

4) The customer will receive a software key from Nevion. The key will be in the form of
the string “optn 0” plus six groups of up to 10 digits. Like this, but with different
numbers:

optn 0 1234567890 1234567890 1234567890 1234567890 1234567890 1234567890

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UDC-3G-XMUX4+ Rev. C

This software key is linked to the serial number of the module and must be sent to the
module via the debug terminal in Multicon Gyda.

To access the debug terminal, first press “Config” in the top menu, and then press
“Debug terminal”.

Figure 6: First step towards accessing the debug terminal

Figure 7: Second step towards accessing the debug terminal

5) Now comes the only tricky part of the procedure: To address a particular module
through the debug terminal, one has to take the frame number and slot number and
make a unique two-digit address from them. To do this, multiply the frame number
from the Multicon GUI with 10, then add the slot number from the Multicon GUI, and
finally subtract 1.
Another way of saying this is that the left digit of the address is the frame number,
and the right digit is the slot number minus one, i.e. slots counted from 0 to 9, instead
of 1 to 10 as they are displayed in the Multicon user interface.
The two modules in our example were both in frame 0, but in slots 1 and 5
respectively. This gives us the addresses “00” (0*10 + 1 - 1) and “04” (0*10 + 5 - 1).

Before trying to send the software key it could be wise to check that the addressing is
indeed correct. That can be done by sending a single question mark (“?”) to the

module. In the Flashlink protocol this is known as the “hello” command, and is

basically a who-are-you command. The module should identify itself with the module

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UDC-3G-XMUX4+ Rev. C

type, version information, and serial number. In the example below the hello
command has been sent to the module in frame 0/slot 5 (that is, address “04”), and
the module has replied. Then the software key “optn 0 123456 123 …” has been
copy-pasted into the command field and is ready to be sent to the module. The
command will be sent when the “Ok” button is pressed. The module will then reply
with “ok”, and restart with the new features enabled. It will take a few seconds before
Multicon Gyda rediscovers the module after the restart.

Figure 8: The debug terminal, ready to send the software key to the module

6) Remember to check that the module now has the new features enabled. Please refer
to step 2).

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UDC-3G-XMUX4+ Rev. C

Input standard

SD

HD 720p

HD 1080i

3G 1080p

Output

standard

SD

6.2 W

6.3 W

7.0 W

6.9 W

HD 720p

6.6 W

6.8 W

7.8 W

7.4 W

HD 1080i

6.9 W

7.1 W

8.7 W

8.0 W

3G 1080p

7.3 W

7.5 W

9.0 W

8.3 W

2 How to get started

2.1 Power requirements

The absolute maximum power consumption for this module is 9.0 W. This does however
include the 0.5 W for the optional PIN or APD optical input modules, and 0.8 W for the AES
I/O option, and also varies considerably with the combination of input and output video
standards used. If the module will always be used with the same combination of input and
output standards, the table below can be used to determine the actual maximum power
consumption, and to determine how many modules can safely be used in one frame.

Note that the module will draw all its power from +5 V. Check the +5 V rating of
the power supply, generally it will be lower than the rating for the entire supply.

Table 2: Maximum power consumption as a function of video standards used

Note that the figures in the table above include 0.5 W for the optional PIN or APD
module, and 0.8 W for the AES I/O option. These numbers can be deducted if the
corresponding option has not been purchased for the module(s) in question.
Even if the AES I/O option has been purchased, ~0.3 W can be deducted from
the table values if all four AES I/Os are used as inputs.

2.2 Physical connections

Figure 9: UDC-3G-XMUX4-C1 backplane

left: connection side right: component side

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UDC-3G-XMUX4+ Rev. C

Function

Label

Connector type

HD/SD-SDI input

IN

BNC

HD/SD-SDI output 1

1

BNC

HD/SD-SDI output 1 inverted

_ 1 BNC
HD/SD-SDI output 2

2

BNC

HD/SD-SDI output 2 inverted

_ 2 BNC

Black & Burst/ tri-level frequency
reference input

SYNC

BNC
AES I/O 1

1

WECO

AES I/O 2

2

WECO

AES I/O 3

3

WECO

AES I/O 4

4

WECO

GPI in

GPI/DATA

TP45, pin 2, 3, 6 & 7

GPI out

GPI/DATA

TP45 pin 1 (pin 8 = GND)

DATA out

GPI/DATA

TP45 pin 4 & 5

The backplane for the UDC-3G-XMUX4 is labelled UDC-3G-XMUX4-C1. It is designed to be
fitted in a Flashlink rack unit and to take up a single slot. The connection side will face
outward on the back side of the Flashlink rack when mounted correctly. The table below is an
overview of the connectors and their associated functions.

Table 3: Connector functions

Unused SDI inputs/outputs should be terminated with 75 Ohm.

2.2.1 Sync input

The main module features a slide switch to select between sync taken from the backplane

input (switch position marked “BP”) and a frame-distributed sync (switch position marked
“RACK”). At the time of writing this manual no frame-distributed sync is available, and the

switch should be kept in the “BP” position.
The backplane also features a switch on the component side (the side facing into the frame).

This is a switchable termination for the backplane sync input. By setting the slide switch in
Figure 9 to the “ON” position, the sync input will be terminated to 75 Ohm. Generally, the
sync inputs should be terminated if each sync input is fed from a separate output of a
distribution amplifier. If one sync output is passively split and fed to several modules
(T-connectors) one module should be terminated while the others should be left
unterminated.

If the module will be used without a frequency reference the positions of these slide switches
do not matter.

2.2.2 GPI outputs (alarms)

The UDC-3G-XMUX4 has one GPI output. This reflects the general status of the card, and
thereby acts as an all-purpose alarm. See Table 4 below.

2.2.3 GPI inputs

The UDC-3G-XMUX4 has four GPI inputs. Together they form a four-bit number (16
combinations) that can be used to select one of the many conversions that the module can
perform., either as the fallback conversion for when the automatic logic lacks the necessary
input information to make a decision, or a completely manually selected conversion. This is
the subject of chapter 3.6, and section 3.6.7 in particular. See Table 4 below for the location
of the GPI inputs.

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UDC-3G-XMUX4+ Rev. C

GPI name

Function

Pin #

Mode

Direction

Status

General error status for the
module. Will also activate at
firmware upgrades, when
the module is not.

Pin 1

Inverted Open
Collector
(open is alarm)

Output
GPI 1

GPI default scaling select.
Least significant bit.

Pin 2

TTL, 0V =
active level

Input

GPI 2

GPI default scaling select

Pin 3

TTL, 0V =
active level

Input

DATA link
output

RS422+

Pin 4

RS422

Output

DATA link
output

RS422-

Pin 5

RS422

Output

GPI 4

GPI default scaling select.
Most significant bit.

Pin 6

TTL, 0V =
active level

Input

GPI 3

GPI default scaling select.

Pin 7

TTL, 0V =
active level

Input
Ground

0 volt pin

Pin 8

0V.

Red LED

Orange LED

Green LED

No light

Card status

PTC fuse has
been triggered
or FPGA
programming
has failed

Module has not
been
programmed, or
RESET and
OVR DIPS are
both on, or
module is
loading
firmware.

Module is OK

Module has no
power

SDI input
status

Video signal
absent.

Video signal
present but card
unable to lock
VCXO

Video signal
present and
locked

Module has not
been
programmed

Sync input
status

Sync signal
absent

Sync signal
present but card
unable to lock
VCXO

B&B or Tri-level
sync in lock

Module has not
been
programmed

Audio input
status

No audio
embedded in
incoming video

One, two or
three audio
groups
embedded in
incoming video

4 audio groups
embedded in
incoming video

Module has not
been
programmed

2.2.4 Data link output lines

The UDC-3G-XMUX4 has one pair of data output lines. Together they form an RS422 output.
The data is de-embedded from one of the embedded audio channels. These data must of
course have been embedded by another module upstream. See Table 4 below for the pin­out.

Table 4: The TP45 (8pin modular jack) in detail

2.3 What the LEDs mean

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Table 5: LED states and what they mean

UDC-3G-XMUX4+ Rev. C

2.3.1 Exceptions/special conditions for the LEDS

The locate command will make all four LEDs blink on and off synchronously to quickly
identify the module in a larger installation. The condition of the card is not otherwise affected
by the command, only the appearance of the LEDs will change. The LEDs will return to their
normal states and functions after the special locate condition times out.

FPGA firmware upgrades will activate running lights after the firmware download has
finished. Do not remove power to the card when running lights are active, the card is
unpacking and installing the new firmware. The UDC-3G-XMUX4 will automatically reboot
after a successful upgrade, and the LEDs will then also return to their normal functions.

2.4 Selecting between Gyda mode or Manual mode

The board can be configured either manually or through the system controller Multicon
GYDA. Since there’s a limited number of switches available compared to the total number of

settings available for the module, only a subset of the parameters can be adjusted when
operating in manual mode. Generally, the parameters that cannot be directly controlled by
the DIP switches will take their settings from the previous Multicon GYDA session. This
means that for a specific manual setup it may be necessary to configure the module with a
Multicon GYDA before switching to manual mode.

To reach manual mode, the lower DIP (labelled OVR) on the module must be switched to the
“On” position (to the right) and the board must be re-booted. This isolates the board from
Multicon GYDA control, but the module will still accept commands to retrieve its status, and
also the commands necessary to initiate and perform firmware upgrades.

In addition to the DIP switches, manual mode will also activate the rotary switch and the two
push-buttons at the front of the module. These are used to control the phase delay for the
built-in frame-synchronizer, see chapter 3.1.1.

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UDC-3G-XMUX4+ Rev. C

2.5 The very brief guide to Manual mode set-up

More details and possibilities are described in chapter 3.1, entitled ‘Detailed control in
manual mode’. This is just the bare minimum to get started and get a useful output in Manual
mode:

Figure 10

2.6 The very brief guide to Gyda mode set-up

All of these settings are covered in much more detail in chapter 3.2. These are just the most
important settings to get started:

Arguably the most important setting is where to take the input from. If the module was
purchased with the electrical input only, this would be a good starting point:

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UDC-3G-XMUX4+ Rev. C

What this means is that the electrical input will be chosen whenever a signal is present, and
if a signal is not present, the output will frame freeze for 500 ms before resorting to an
internal fallback generator. Here this generator is set to produce just black video frames.

If the module was purchased with the optical input option, the setup could either be like
above, or with the Optical input instead of the Electrical input, or one input could serve as a
backup for the other, with a final fallback to generator, as illustrated below:

Then it is time to worry about the output. The output format is set like this:

If the output is HD or 3G, the Output environment should be set to Always 16:9. If the output
is SD, this setting will depend on whether the output is intended to be best viewed on a 4:3
monitor or a 16:9 monitor. If in doubt, try both and see the difference.

Generally, the Rule should be left in the AFD->Non-AFD->Default position, as that will
always give the correct conversion based on the embedded information about the picture
content. If the user instead wants to have total manual control over the conversion, the rule
should be set to Default:

The actual selection of conversion will then be come directly from the drop-down menu called
Default scaling, at the bottom of the group of settings above. This setting can also be
controlled from the four GPI input lines, which together give 16 combinations, each of which
can be mapped to a conversion in the matrix that looks like this:

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The combination 0000 should usually be mapped to No action, which means that if no GPI
control is present, the GPI lines will not affect anything.

If the module was purchased with the AES I/O option, the direction of each AES port can be
set, see the bottom half of the illustration below. These outputs can be taken from incoming
embedded audio, or from AES ports that are set as inputs. If any of ports are set as inputs,
these inputs can of course also be selected as sources for the re-embedded audio channels.
The audio routing is all handled by the audio matrix in the upper half of this illustration:

2.7 How to get back to factory defaults?

To access the function that will reset the module and reload the factory default settings, the
module must briefly be put into manual mode. The entire procedure is described in chapter

3.1.3.

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3 Detailed control

3.1 Detailed control in manual mode

To reach manual mode, the lower DIP (labelled OVR) on the module must be switched to the
“On” position (to the right) and the board must be re-booted. This isolates the board from
Multicon GYDA control, but the module will still accept commands to retrieve its status, and
also commands related to initiate and perform firmware upgrades.

The Manual Mode configuration controls are all found on the front side of the board. There
are three sets of DIP switches, one rotary switch, and two push buttons.

Figure 11: The figure shows a top view component printout of the board.

3.1.1 Rotary switch and push buttons

The rotary switch and the push buttons are used to control the phase delay setting of the
frame-synchronizer. They are accessible from the front of the module and are meant to be
adjusted when the module is powered and active. No change will be seen in output video
unless a sync input (black & burst or tri-level) is present.

The rotary switch, labelled DLY, adjusts the phase delay from -5 to +4 video lines.
The push buttons, labelled INC and DEC, are used to fine adjust the phase delay one

sample at a time. They can adjust the additional samples setting within +/- ½ video lines for
the present video standard. Pressing both buttons simultaneously will reset the number of
additional samples to 0. Holding one of the buttons in will accelerate the increase/decrease
action until the button is released (or one of the limits -½ or +½ video lines is reached). When
the samples setting is reset or one of the limits reached, this will be acknowledged with a
series of short flashes on the LED(s) closest to the activated button(s).

3.1.2 DIP switch functions

The two horizontally mounted DIP switch packages are here denoted DIP1­DIP16, counted from left to right. The vertically mounted DIP package is denoted
with DIP17-DIP24, counted from top to bottom.

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Switch

Function name

Function DIPs

Comment

1

AES1 dir

Off = output
On = input

AES 1 input or output, if
AES1 is input, DIP 2-4
routes GROUP 1.

2-4

AES1/GRP 1
routing

DIP
234

Group 1
Embeddin
g

AES1
output
Deembed
ding

Routing matrix to AES1 or
GROUP 1

000

Disable

Group 1
ch 1&2

001

Group 1

Group 1
ch 3&4

010

Group 2

Group 2
ch 1&2

011

Group 3

Group 2
ch 3&4

100

Group 4

Group 3
ch 1&2

101

AES1&2

Group 3
ch 3&4

110

AES3&4

Group 4
ch 1&2

111

Generator

Group 4
ch 3&4

5

AES2 dir

Off = output
On = input

AES 2 input or output

6-8

AES2/GRP2

See table for AES1/GRP1

Routing AES2 or GROUP 2

9

AES3 dir

Off = output
On = input

AES 3 input or output

10-12

AES3/GRP 3

See table for AES1/GRP1

Routing AES3 or GROUP 3

13

AES4 dir

Off = output
On = input

AES 4 input or output

14-16

AES4/GRP 4

See table for AES1/GRP1

Routing AES4 or GROUP 4

17-19

Output format
(marked XYZ)

XYZ

The XYZ combination sets
the output format. The
frame rate out will be
selected automatically
based on the frame rate of

the input. The “XX1”

combination means that if
the Z switch is in the On
position, the two other
switches don’t matter.
Note that the auto selection
of frame rate means that no
standard conversion
(between 50 Hz and 60 Hz /

59.94 Hz time bases) is
possible in manual mode.

000

720/50p or 720/59p

010

1080/25i or 1080/29i

100

PAL or NTSC, 16:9

110

PAL or NTSC, 4:3

XX1

1080/50p or 1080/59p

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OPT/EL

OPT/EL

Off = Optical input is main
On = Electrical input is main

Optical / Electrical input
priority. If the optical input is
not installed, this DIP will
have no effect.

SDO1
PROC

SDI OUT 1

Off: through mode
On: processed mode

In through mode the video
only goes through a re­clocker.

SDO2
PROC

SDI OUT 2

Off: through mode
On: processed mode

In through mode the video
only goes through a re­clocker.

F-RESET

F-RESET

Off: Use values preset by
MULTICON GYDA.
On: RESET to factory defaults

This DIP is only read at
power up. See chapter

3.1.3.

OVR

OVR

Off: MULTICON GYDA mode
On: Manual mode

This DIP is only read at
power up.
OVR is short term for
MULTICON GYDA override

Table 6: DIP SWITCH FUNCTIONS

3.1.3 Factory reset function

The factory reset puts the card back to its initial state, as it was delivered from the factory.
These settings are just a starting condition for the board, and new settings applied by the
user will still take effect and be stored.

If a Multicon GYDA is controlling the frame in which the factory reset operation is
performed, Multicon will see the re-insertion of the card in step 4 below as a hot­swap event, and it will try to write the previously stored settings back to the card.
There are two ways to avoid this mechanism: The safest and easiest way is to
keep the Multicon GYDA pulled out during the factory reset procedure. The next
best thing is to select the Manual mode in step 3, which will effectively prevent
the card from acknowledging the commands sent from Multicon in step 4. After
~30 seconds the Multicon settings will instead have been updated from the card
settings (some of which may now have been overridden by the DIP
switches!), and then the card can be unplugged once more, and returned to
Gyda mode.

The factory reset is a four-step procedure:

1. Pull the main card out of the frame, and set the two DIPs labelled F-RESET and OVR
to their On positions.

2. Re-insert the card into the frame. The Status LED will now be a permanent orange
colour. No further waiting is needed after seeing the Status LED lit up orange.

3. Pull the card out of the frame again, and return the DIP F-RESET to its Off position,
and set the OVR to the desired mode of operation.

4. Re-insert the card into the frame, and it should now boot as normal again. It is only at
the end of this boot-up that the settings are actually reset, and to ensure that the new
settings are stored properly it is important that the card is now kept powered for a few
seconds after the Status LED has turned green. The card will start to operate as
normal with the new settings right away.

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3.2 Detailed control in Gyda mode

All functions of the card can be controlled through the Multicon GYDA control system. The
Multicon GYDA has an information page and a configuration page.

3.2.1 Information page

Figure 12: Multicon GYDA information page

The information page shows a dynamic block-diagram of the board and some additional
informative text. The block diagram updates with the board status, showing input signal
selected and signals missing (by red crosses over signal lines). It also shows the audio
matrix selections that have been made in the configuration page.

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Note that if an audio input is not present, the user will still be allowed to select
this input from the matrix, but the output will go to a fallback position. Missing
audio inputs will be shown in the block-diagram as a red cross over the
corresponding matrix input line.

The information text below the dynamic block diagram lists information not easily conveyed
in a graphical manner.

Common scaler settings denote the output format, which is selectable under the same
heading in the Configuration page.

Active scaling: This shows which aspect ratio conversion is currently performed by the card.
Indirectly it also shows why this conversion has been selected: If the text starts with
“Default:” it means that this is the conversion that the user has selected as the default
scaling. This in turn means that the user has either selected the scaling manually,or that no
aspect ratio information was detected in the video to select the proper scaling automatically.
Conversely, of the text starts with “Auto:” it means that the card has valid aspect ratio
information in the form of AFD, VI, WSS or SMPTE352, and that the conversion has been
selected automatically to suit the output environment specified by the user.

Phase delay denotes the time difference in samples between incoming sync source and
outgoing video signal.

AES input delay shows the delay (in 48 kHz audio samples) between incoming AES stream
and AES stream going into the cross-point switch. These delay blocks are not shown in the
graphics.

Signal integrity shows the incoming video format and counts errors found on this signal. The
error mask is set up in the Signal integrity block on the configuration page. To reset the
counter to 0, press the Reset button.

DE-embedded datalink gives the status and bitrate of the data de-embedded from an AES
stream. Which AES stream to de-embed data from is selected in the audio cross-point
switch. This datalink is a Nevion proprietary standard and embedding of such data can be
done with the AV/AAV-HD(SD)-XMUX.

3.2.2 Configuration page

The configuration page is shown over the next two pages. The different configuration
parameters are explained in detail in the following sub-chapters. The order the settings are
presented in roughly follows the data path inside the UDC-3G-XMUX4, rather than the order
of the settings in the graphical user interface.

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Figure 13 Multicon Gyda configuration page, upper half

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Figure 14: Multicon Gyda configuration page, lower half

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3.3 Data path

The 3G/HD/SD-SDI input is selected from either optical or electrical input and equalized, re­clocked and de-serialized and transferred to a processing unit called an FPGA. In the FPGA
the signal is first sent through a de-glitcher that cleans up small single-line errors that might
appear for instance due to switching. In the de-glitcher the ancillary data to be remapped in
the output video stream is also de-embedded. The video is then passed over to the audio de­embedder that de-embeds all audio from the video.

The 16 audio channels coming from the de-embedder are bundled in pairs and sent to an
audio buffer. The audio is fetched from the audio buffer according to a user specified delay
and sent to an Audio cross point. The audio from the Audio cross point can be any pair of
audio channels de-embedded from the incoming video stream, AES inputs, an internal 1 kHz
sine or an internal silence generator. The silence generator (labelled mute) produces valid
audio, just silent. These audio generators can be set as fallback when no valid audio is
available, but the options also exist to turn the AES outputs completely off or set the delete
flag for embedded audio. From the cross point outputs each channel pair enters an Audio
Processing Block, where the paired channels may be shuffled. After the audio processing
block the audio enters the Audio Embedder.

After the audio de-embedder, the active area of the video is sent through the scaler blocks
and to a frame buffer. The video is then fetched from the frame buffer with the user specified
delay and sent to a Video processing block followed by an EDH processing block. After the
EDH block the video and audio is embedded according to the user settings and the video is
sent from the FPGA to a serializer that re-clocks the data and outputs the SDI to a buffered
output switch.

The buffered output switch is a 2x2 crosspoint with input 1 being the equalized and re­clocked input (non-processed) and input 2 being the output of the video processing. The two
outputs are sent to two paired (non-inverting and inverting) outputs.

There are also 4 I/O ports for AES. These can be setup to be either inputs, outputs or a mix.
The outputs are taken from the Audio cross point and can be any stereo pair of audio
channels embedded on the incoming video stream, AES inputs (if any), the internal 1 kHz
sine generator or the internal silence generator. The inputs are routed through optional audio
delays and sample rate converters before they enter the audio cross point matrix.

3.4 Video input selection

The UDC-3G-XMUX4 has one electrical and one (optional) optical input. The input can be
chosen either by an automatic selection with priorities and rule of switching, or by manual
selection. When the input selection is done manually by selecting one of the inputs from the
Mode menu, no fallback is available to other sources are available, but there will be a frame
freeze for as long as the input is gone.

Manual selection mode

Figure 15: Multicon GYDA view of electrical input selected manually

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Automatic selection mode

Figure 16: Multicon GYDA view of the input selection

If the Video in Mode choice is set to auto in Multicon GYDA, three input choices (priorities)
can be made. The available choices are electrical, optical, internal generator, muted, or ‘–‘
(none). When the signal is missing on the input selected as ‘Main’, the change-over logic will
switch to the next priority and look for a signal there, and so on. If the user doesn’t want to
use all three priority levels, the unused ones can be set to ‘–‘. Should the user specify a list of
priorities where it is actually impossible to reach one or both of the backup levels (because
the main input is selected to be an internal generator, and therefore always present), the
card will also display the unreachable levels as ‘–‘.

The switching is always latching, and to get back to the main input while the other input is still
present, the user must press Reset.

Hold time and lock time can also be adjusted. These specify how long a signal can be
missing before the next input in the prioritized list is attempted, and how long a lost signal
has to be present before it is considered OK again, respectively.

3.5 De-glitcher

The de-glitcher corrects timing errors within a line. The de-glitcher has a 2048 samples

buffer. When the first signal is present, we call it the “initial phase signal”, data is taken from

the center of this buffer. If the timing reference of the video signal changes, when for
instance a new source being switched into the signal path, the timing errors occurring by this
change will be corrected if the new timing reference is within +/-1024 samples of the “initial
phase signal”. This also goes for all consecutive timing references.

If a signal is more than +/-1024 samples off relative to the “initial phase signal”, the output will
repeat the last frame, refill the 2048 samples buffer and take new data from the centre of the

buffer. This new signal is now considered the “initial phase signal”.

This mechanism produces an error free video output without frame wrapping when the video
input comes from a router with synchronous input video signals that all lies within +/-1024
samples of each other.

The de-glitcher output is always seamless. When a signal is repeated, the audio
is faded out. It fades in again at the next frame.

3.6 The scaling blocks

3.6.1 Motion adaptive de-interlacer

This block converts an interlaced image to progressive. It is only part of the signal path for
interlaced video formats.

3.6.2 Format and standard converter block

This block converts between the different video formats and standards. If the input is
interlaced, it is de-interlaced before entering this block. The input format is automatically
detected. The output format is selected in Common scaler settings in the graphical user
interface. Formats supported are: 486i29, 576i25, 720p59, 720p50, 1080i29 and 1080i25.
Although the module can always convert between 50 and 60 Hz time bases, a sync input of
the same time base as the desired output is required to get the correct pull-down status.

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3.6.3 Aspect Ratio Converter block

The aspect ratio converter block may be used to stretch or shrink a picture vertically and/or
horizontally. The picture may also be offset with respect to the original centre of the picture.

The primary difficulty with selecting the conversion is the sheer number of possible
conversions. This can be greatly reduced by specifying the desired output aspect ratio (4:3 or
16:9). We call this setting the output environment. The actual scaling will depend on the
input signal.

The output environment setting actually describes the aspect ratio of the pixels. The fill
factor is a term to describe the degree to which the output picture will fill the output frame, or
the presence of horizontal or vertical curtains or black bars.

After conversion the output signal will have the appropriate AFD, VI, WSS and S352M
embedded. These types of metadata can also be individually disabled.

There are four operational modes for the module:

1. AFD -> Frame fill setting -> default conversion

2. AFD -> default conversion

3. Frame fill setting -> default conversion

4. Default conversion, no auto

The primary assumption for the first three modes is that an input signal with the same aspect
ratio as the output environment will not be scaled. (There are a couple of exceptions if the
picture has both horizontal and vertical curtains.)

In mode 4 the zoom and position settings from the selected scaling will be applied for all
input signals, regardless of the detected input environment. If one of the pre-defined fixed
scalings is used, the output environment will be given by the selected scaling. The only

exception is “No conversion”, which has no inherent output aspect ratio; when this scaling is

selected, the output environment is taken from the general output environment setting. For
the user scalings, the user must specify the output environment. This also provides an
opportunity to change the output environment via GPIs, see chapter 3.6.7.

3.6.4 Automatic scaling modes

The following applies to the first three (automatic) modes of operation:
The scaling performed by the module is determined by the input picture aspect ratio and fill

factor (presence of ‘curtains’) but normal SD video does not natively state of what aspect
ratio the pixels are, or if another conversion has already been applied. There are three
sources of information that may be present in the video that can provide some or all of this
information.

Active Format Descripton (SMPTE 2016 and SMPTE RP186, the latter referred to as Video
Index) describes both the aspect ratio and the fill factor of the picture. However, the fill factor
descriptor may contain a code to indicate that the fill factor of the picture is unknown. In that
case, the selected fill factor setting is used.

SMPTE352M is a data packet that can be used to identify the aspect ratio of the picture, and
thereby the pixels.

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Figure 17: Multicon Gyda view of scaler settings

3.6.4.1 Mode 1: Full automatic mode

The aspect ratio control block will start by looking for AFD presence in the input signal to
select the aspect conversion. If this is not present it will look for VI, then WSS and finally
SMPTE S352M information. If no aspect ratio information is present in the video, the default
scaling will be used.

When a valid format descriptor is present, either from SMPTE 2016, VI or WSS, all the
conversions in the AFD code drawing in Figure 18 are possible for the given output
environment.

In the case where only the input/output environment information is available, a subset of the
conversions is used. The desired filling method must be set. This may be one of the
following:

 Zoom to fill frame - The image will be zoomed and cropped. No curtains.
 14:9 - The image will be zoomed and cropped. Narrow curtains.
 Protect input frame - The image will not be zoomed or cropped. Full curtains.

If the input environment is the same as the output environment, no conversion will be
performed.

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3.6.4.2 Mode 2: AFD or default

This mode will only use the AFD information. The default scaling will be used if SMPTE
2016, VI, and WSS are all missing, or if the active format descriptor is set to ‘Unknown’.

3.6.4.3 Mode 3: Fill mode or default

This mode will only use the input aspect ratio part of the information from the SMPTE
2016/VI/WSS and disregard the active format descriptor. If SMPTE 2016, VI nor WSS are
present, the S352M packet will be used, if present. If S352M is also missing, the default
scaling will be used.

3.6.4.4 AFD conversions

Figure 18 shows the different transitions that are defined. The incoming format is given by
the AFD/VI/WSS, and the user has supplied the output environment. To avoid clutter,
transitions from a state to itself are not shown in the figure. The corresponding AFD format is
shown for reference.

The figure looks confusing at first, but observe that each of the states have only one arrow
leading from itself to the other column. This arrow defines the normal conversion when the
input environment is different from the output environment. Find the picture type that you
have on the input and follow the arrow to the other column to find the conversion that will be
performed when the AFD code is present.

There are a few states where the input picture has both horizontal and vertical curtains and
these also have arrows within the same column. These are conversions that will be
performed when the input environment is the same as the output environment.

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Figure 18: AFD controlled aspect ratio conversions

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Input

environment

Non-AFD Conversion

Output

environment

Conversion performed

16:9 Any.

16:9

4:3

Protect input frame

16:9

4:3 Zoom to fill frame

16:9

4:3

14:9

16:9

4:3 Any.

4:3

16:9

Protect input frame

4:3

16:9 Zoom to fill frame

4:3

16:9 14:9

4:3

3.6.4.5 Fill mode conversions

If the module cannot find any fill factor information but has aspect ratio information, it will
perform one of three conversions when the input environment is different from the output
environment.

1. Protect input frame.

2. Zoom to fill frame.

3. Zoom to 14:9.

The table shows the conversions that will be performed when this mode is active.

3.6.4.6 Default scaling mode

This mode is used when no information about the input video is detected by the ARC-SD­DMUX. This mode uses the fixed scaling setting. The scaling and offset of the output picture
is fixed.

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Input

Conversion

Output

No conversion
4:3 cropped to 16:9 full frame

4:3 to 16:9 with 4:3 pillar box

4:3 cropped to 16:9 with 14:9 pillar box

16:9 to 4:3 with 16:9 letterbox

16:9 cropped to 4:3 full frame

16:9 cropped to 4:3 with 14:9 letterbox

4:3 with 16:9 letterbox cropped to 4:3 with 14:9 letterbox
(zoom 1.143)

16:9 with 4:3 pillarbox cropped to 16:9 with 14:9
pillarbox (zoom 1.167)

4:3 with 16:9 letterbox cropped to 4:3 full frame (zoom

1.333)

Top 4:3 cropped to 16:9 full frame

Top 4:3 cropped to 16:9 with 14:9 pillarbox

3.6.5 Pre-defined settings

3.6.6 User defined settings

It is possible to set the scaling values and AFD codes of twelve settings named “User

scaling” 1 to 12. The scaling values control horizontal and vertical zoom, and horizontal and

vertical center offset.
Vertical and horizontal zoom can be adjusted within the range 0 to 2. The values denote the

enlargements of the output image.
Vertical and horizontal center offset or position values are slightly more complicated as the

calculation depends on whether the effective zoom factors are greater than or less than

unity. ‘Effective’ means that it also incorporates the scaling factors when converting from one

input standard to another output standard, i.e. 1.5 horizontal (1920/1280) and 1.5 vertical
(1080/720) if going from a 720-standard to a 1080-standard.

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The embedded AFD code for each User setting may be set. Use Figure 18 in the AFD
conversion section to find the code that best describes the output.

3.6.6.1 Pos when zoom is greater than 1:

The setting is in lines (vertical offset) and pixels (horizontal offset) on the output. A position
value of P will result in the picture moving P pixels or lines.

3.6.6.2 Pos when zoom is less than 1:

The setting is in lines (vertical offset) and pixels (horizontal offset) but the values are also
scaled by the zoom factor. A zoom value less than 1 with a position value of P will result in
the picture moving (P x zoom) pixels or lines.

Positive position values moves image right/up, negative values left/down.

3.6.7 Selecting Default scaling by GPI

There are 4 GPI input lines that can be controlled individually by external equipment, and
therefore 16 different combinations. Each of these 16 states can be mapped to one of the
scalings available under Default scaling. The GPI lines will then select the Default scaling,
which means that they will either control the active scaling directly (if the scaler rule is in
Default scaling mode) or the fallback scaling that will be chosen when no
AFD/VI/WSS/SMPTE352 information is available (if the scaler rule is set to one of the
automatic modes, see chapter 3.6.4).

It is also possible to map one or more states to “No action”, which means that the card will

simply ignore this GPI condition. This option can be particularly useful if a subset of the GPI
values is used and the external equipment is unable to switch the GPI lines simultaneously.
Although the GPI lines are de-bounced (filtered), unintended states could be visited by the
GPI lines in a transition from one intended value to another. It’s therefore recommended to
map all unused states to “No action” to get the cleanest possible switch between scalings.

Figure 19: Multicon GYDA view of the GPI to scaling map.

The GPI value is read from left to right: GPI 4, GPI 3, GPI 2 and GPI 1.

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3.7 Frame synchronizer

The frame synchronizer consists of a frame store buffer and some control logic. The frame
store buffer can store up to 4 full HD frames. Data is fetched from this buffer according to the
user settings by force of the control logic. The control logic sets the frame synchronizer into
different modes dependent on the presence of a sync input.

3.7.1 Frame sync mode

If a sync input (B&B or Tri-level) is present, the frame synchronizer will output a signal that
has a delay relative to this signal. This parameter is called "Phase delay".

Figure 20: Multicon GYDA view of the video delay settings

Phase delay may also be called “output phase delay”. This parameter can be positive or
negative, and determines the relationship between the outgoing video and the sync signal.

The phase delay can thus be written in several ways, a large positive delay will equal a small
negative delay, because there is wrap-around on a frame basis. It follows that it is not useful
to specify a phase delay larger than 1 frame. Strictly speaking the range could have been
limited to -1/2 frame to 1/2 frame. For convenience, the delay range is allowed to be from -1
frame + 1100 samples to 1 frame – 1100 samples.

The lines are measured in units of the output SDI video standard. If the output SDI standard
is 1080i25, a delay of one line is equal to 35.5us. If the output SDI standard is 720p50, a
delay of one line is equal to 26.6us. If the output SDI standard is 625i25, a delay of one line
is equal to 64us.

For a scenario where the card receives different HD video standards, (e.g.
1080i25 and 720p50) the user may want to conserve a specific delay in
microseconds for all HD video standards. This is accomplished by specifying the
delay in number of samples instead of lines. (For HD video standards the sample
frequency is equal over standards, but the line and frame frequencies are
different for the different standards).

If video input disappears

Given that stable SDI input and sync input exists: If the SDI input disappears, the picture will
freeze for <hold time> and then go to video generator if the card is in default configuration.

If video input reappears

Given stable sync input, the video will reappear after <lock time> of locked video input if card
is in default settings.

If sync input disappears

Given that stable SDI input and sync input exists: If the sync signal disappears, the card will
act as in frame delay mode, see Chapter 3.7.2.

NOTE: This will result in a frame roll as the delay changes.

If sync input reappears

Given that a stable SDI input exists: If the sync signal reappears the delay mode will change
back to Frame Sync mode. Hence the internal clock will be locked to the sync signal and the
delay will again change.

NOTE: This will result in a frame roll as the delay changes.

If both signals disappears

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UDC-3G-XMUX4+ Rev. C

The picture will first freeze for <hold time> and then go to video generator. The output is now
referenced to the local clock source. This clock source will however be kept within 1 ppm of
the last sync source.

3.7.2 Frame delay mode

In this mode a sync signal is not present. The phase delay will now be relative to the SDI­input.

If video signal disappears

The picture will first freeze <hold time> and then go to video generator. The output is now
referenced to the local clock source. However this clock source will be kept within 1 ppm of
the last video source.

If video signal reappears

If the input video signal reappears, the video will reappear on the output <lock time> after
stable input video. The delay will be set to the same as before input was lost.

NOTE: This may cause a frame roll.

If a sync input appears

Given that a stable SDI input exists: If a sync signal appears the delay mode will change to
Frame Sync mode, see Chapter 3.7.1. Hence the internal clock will be locked to the sync
signal and the delay will again change.

NOTE: This will result in a frame roll as the delay changes.

3.8 Video generator

The video generator can produce several simple signals: Color bar, Check field and flat field.
The flat field can be set up with 10bit (0-1023) luma and chroma values, or by selecting a

predefined color.
The generator may be used as the video source if there is no video signal present at either of

the video inputs. The generator may also be switched on with Multicon GYDA even though a
video input is present. This will override video input, but the generator signal will be
synchronous to the input signal or sync input if one or both are present.

Figure 21: Multicon GYDA view of the video generator

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Range Multicon GYDA

Luma gain

0 – 3.9999

Chroma gain

0 – 3.9999

Luma offset (gain =1)

511.75 – 511.75 in sample values

Chroma offset (gain = 1)

255.75 – 255.75 in sample values

Upper limit

Luma:

3ACh

Chroma:

3C0h

Lower limit

Luma:

040h

Chroma:

040h

3.9 Label generator

The label generator consist of 2 lines of 16 characters each that are placed at the lower left
corner of the active area.

Its main function is to enable the user to automatically add a label to the internal generator at
loss of input signal. This is done by selecting the auto tick-box on the “Label gen” block in the
Multicon GYDA configuration.

It is also possible to superimpose the label on the incoming SDI by ticking the “On” box.

Note that to see the label on an output the video output selection must be set to
“processed” for this specific output.

Figure 22: Multicon GYDA view of label generator

3.10 Video processing block

The video processing block consists of a gain and offset adjustment, and a video payload
legalizer.

Figure 23: Multicon GYDA view of the video processing block

3.10.1 Gain and offset

The gain and offset adjustments are done separately for the Y, Cb and Cr samples.

3.10.2 Video payload legalizer

The legalizer hard clips the upper and lower limit of the video payload. With the legalizer
enabled these limits are:

With the legalizer disabled the video processing block hard clips both luma and chroma to
3FBh and 004h.

3.11 Color space conversion

HD and SD use different color spaces. The conversion from one color space to another will
be handled automatically by the card when converting from SD to HD (or vice versa), but the
user also has the option to turn the color space converter off.

Figure 24: Multicon GYDA view of the color space conversion block

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3.12 Video filters

Two video filters are available to help reduce noise and/or get a better looking picture. Each
filter can be set to four different levels/strengths, in addition to being turned completely off.

The filters are ordinary low-pass filters, one used with up-conversion and one used with
down-conversion. The four settings of the low-pass filters will reduce the full bandwidth (f0) to

0.8∙f0, 0.6∙f0, 0.4∙f

detail/information content before video compression, or simply as a trade-off between detail
and smoothness for sources that already have severe artifacts.

Note that when pixels can be mapped directly from input to output (an effective zoom factor
of exactly 1.0) no conversion will take place and no filter will be applied.

and 0.2∙f0, respectively. This can be useful to remove some of the

0

Figure 25: Multicon GYDA view of the video filter block

3.13 EDH processing block

If enabled, the EDH processing block extracts the EDH package from the video, updates the
EDH flags according to SMPTE RP165 and inserts the EDH package into the ancillary data
of the video.

If disabled, The EDH processing block only reads, processes, and reports the EDH package
contents without doing any modifications to the packet in the video stream.

3.14 Video output selection

The board has four outputs where two pairs (non-inverting and inverting) can be routed either
directly from the re-clocker (Through) or via the processing unit (Processed).

Figure 26: Multicon GYDA view of the SDI output selection block

When Processed is selected, the output can also come from the internal video generators.
They can act as fallback when video input is missing, or the module can be used as a
standalone generator. This is controlled from the Video in block. In Through mode the output
can only be muted (i.e. output drivers turned off) when the video input is missing.

Figure 27: Multicon GYDA view of video input mode.

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1

3.15 Audio blocks overview

Figure 28: Audio function blocks

3.16 Audio de-embedder

The Audio de-embedder extracts all audio embedded in the video stream. The de-embedder
is always enabled.

3.17 Audio delay

An audio delay relative to the video output can be specified commonly for all de-embedded
channels. This is done in Multicon GYDA. The audio delay is specified in audio samples
relative to the output video, and this setting can be both positive and negative.

Note that because the audio delay is relative to the video output it is possible to
specify an audio delay that will actually be negative relative to the input video.
This will cause audio errors.

While the maximum negative relative audio delay will be limited by the actual video delay, the
maximum positive relative audio delay is specified to 28368 audio samples (at 48 kHz, which
is approximately 0.6 second).

It is however possible to enter an audio delay up to 32767 samples and this will work fine
provided that the sum of the actual video delay and the relative audio delay is 32767 audio
samples or less. With 28368 (or less) this is always guaranteed.

Dolby-E delay handling

The UDC-3G-XMUX4 can be used to re-align Dolby-E with video. Dolby-E processing
equipment typically causes one frame delay for the audio.

The positive video delay needs to be set higher than the wanted negative relative audio
delay. Then set a negative relative audio delay that corresponds to a whole number of full
frames of audio samples1. A delay example setting is shown in Figure 29. The de-embedded
audio can be routed to one or more AES outputs and through a Dolby encoder/decoder and
back into one or more AES inputs. The delay on the AES inputs should probably be set to
zero, but may be adjusted to align audio with video.

To calculate number of audio samples/frame simply divide 48000 with frame rate (24Hz, 25Hz, 29.97Hz, 30Hz, 50Hz, 59.94Hz

or 60Hz)

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Figure 29: Multicon GYDA view of the delay settings. The video is delayed 1 frames compared

with the de-embedded audio for a 50Hz signal.

3.18 Audio cross point matrix

The audio cross point matrix is an 8x10 cross point with inputs and outputs as shown in
Figure 28. The 8 de-embedded channels, a 1 kHz sine and mute are selectable inputs. Mute
is explained in Chapter 3.3. The outputs of the cross point are 8 stereo channels for re­embedding, 0-4 AES outputs (depending on I/O configuration) and 1 data output.

Figure 30: Multicon GYDA configuration view of the audio cross point matrix

All embedded outputs have a common fallback option that can be set in Multicon GYDA. The
priorities can be selected between matrix (being the choice from the cross point matrix), sine,
mute or delete. Mute selects internal silence generator and Delete deletes the audio content
and set the audio control package to channel delete for its respective channels.

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3.19 AES I/O

The directions of the four AES ports can be selected individually by the user. This means that
the user has any combination of inputs and outputs available: 4 inputs, 3 inputs plus 1
output, 2 inputs + 2 outputs, 1 input + 3 outputs, or 4 outputs.

3.19.1 Audio inputs

When an AES I/O port is set to be an input, the sample frequency of the input is monitored to
see if the signal is synchronous with the system clock. If not, the audio input is passed
through a sample-rate converter. After the input block the audio can be delayed with a delay
individual for each AES port, before it is routed to the audio matrix. The audio delay for AES
inputs are set relative to the AES input port.

If the AES input port is synchronous with the SDI-input, the user can select the AES input
delay to track to the video delay. The card will then calculate the relative delay for the audio
based on the delay setting for video and audio. This is useful if the SDI-in and AES has a
common clock source and the sync input has a different clock source.

3.19.2 Audio outputs

The AES outputs are routed from the audio matrix via individual audio processing blocks.
The outputs are always 48kHz and synchronous to the system clock. The AES outputs have
individual fallback options.

3.20 Audio generator

The stereo audio generator is available in the audio cross point matrix as a source. It is a
high purity 1 kHz sine wave with a 250ms interruption on the left channel every 3 seconds.
The audio level may be set to one of two standards. The two levels are -18 dBFS and -20
dBFS. These two levels correspond to EBU R68 and SMPTE RP 155.

3.21 Audio processing block

The output of each stereo signal from the audio cross point matrix may be processed in the
audio processing block. This is controlled with the Multicon GYDA controller. The processing
includes channel L/R manipulation and audio gain.

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- LR, Left / Right

No change.

- RL, Right/ Left

Channels are swapped.

- LL, Left/ Left

Left channel is copied into the right channel.

- RR, Right/ Right

Right channel is copied into the left channel.

- nLR, ØLeft/ Right

The left channel is phase inverted.

- LnR, Left/ ØRight

The right channel is phase inverted.

- MM, (Left + Right)/2

The left and right channels are summed.

- MS, MS/AB

The left and right channels are converted from AB stereo
to MS stereo.

Figure 31: The figure shows the Multicon GYDA configuration view of the audio processing

block

Channel L/R manipulation

The stereo signals may be output in one of the following ways:

The sum products (L+R/2 and MS) are reduced in level by 6 dB to avoid any possibility of
clipping.

Audio gain

Audio gain can be set for each stereo pair going into the audio processing block. The gain
range is set to [+96dB, -96dB] with a gain step of 0.1dB.

Note that non-audio data is ignored and left unchanged by the gain function.

3.22 Audio embedder

Figure 32: Multicon GYDA view of the audio embedders

The audio embedder can be enabled per group in Multicon GYDA. When a group is disabled
the audio inside that group is removed.

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UDC-3G-XMUX4+ Rev. C

When in SD mode, a 24 bit audio signal can be converted to 20 bit. This means that the 4
least significant bits are removed. The audio control package is left unchanged as the bit
range is still present. This setting is controlled from Multicon GYDA.

In SD mode the entire audio control package can also be switched on and off via Multicon
GYDA.

3.23 Ancillary packet transport

Several types of ancillary packets must be de-embedded before the format and standard
converter block and re-embedded in the selected output format. The transport of all
supported packages is enabled by default, but for each package type the user can force the
transport off by selecting the Disable option.

Figure 33: Multicon GYDA view of the ANC transport control

3.23.1 Time Code

Time Codes in the Ancillary space is transferred for any video standard or format conversion.
ANC-LTC, ANC-VITC and D-VITC are supported. When no LTC or VITC is detected in

Ancillary Space of incoming stream, any detected D-VITC will be embedded in ANC-VITC.
For incoming 486i29 stream where drop frame compensation is enabled in the time code,

this compensation is maintained in outgoing stream. Time Code transfer can be disabled in
Multicon GYDA.

3.23.2 Closed Caption

All closed caption data transfer is automatic. CEA-708 Caption Distribution Package (CDP)
and CEA-608 (Line21 Closed Caption) is detected on incoming stream and transferred to
CDP and/or CEA-608 data on outgoing stream.

Transfer of CDP is supported between all 29/30/59/60 Hz format conversions when detected
on incoming stream.

Where no CDP is detected in incoming stream, any detected Line 21 data will be embedded
in a CEA-708 package.

When converting to 486i29, Line 21 data will be generated if CDP or Line 21 data is detected
on incoming stream. Incoming CDP will have priority over incoming CEA-608 data.

Only vertical ancillary data packages containing CDP will be transferred. Closed Caption
transfer can be disabled in Multicon GYDA.

3.23.3 SMPTE 2010/SCTE 104

UDC-3G-XMUX4 will transport SCTE 104 Messages in VANC for all possible conversions
and place these ANC packets in VANC on first available line from line 9 in HD/3G, from line 8
in 625i25, and from line 12 in 525i29.

This transfer is automatic depending on input detection and can be disabled in Multicon
GYDA.

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3.23.4 SMPTE 2020

Audio metadata defined in SMPTE 2020 will be transferred for any video standard or format
conversion. Up to eight different packet IDs are supported on any single video field.

The ANC packets are placed in VANC on first available line from line 9 in HD/3G, from line 8
in 625i25, and from line 12 in 525i29. Note that all the SMPTE 2020 packets may not all fit in
the same line.

There will be no rerouting or change in the audio metadata, so the user must make sure that
audio routing and inserted audio from AES adhere to what is specified in the SMPTE 2020
packet.

This transfer is automatic depending on input detection and can be disabled in Multicon
GYDA.

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Block

Blk#

Commands

Example

Response

Control

- - ? ? product name\
SW rev n.m\
FW rev r.s\
protocol ver 4.0\

Hello command.

Note 1: No other commands will be
available until the card has received
this hello.
Note 2: This command will also
enable checksums.
Note 3: Cards are designed to be hot­swappable. To sync with the start of a
new command, the cards will wait for
a <lf> character before looking for a
valid command.

conf 0 -

conf 0

*too long to list*

Configuration settings

Retrieves the card's configurable
settings. Each addressable block is
represented by a single line. Dynamic
status may be included in response,
but is usually reported in info only.

- - info

info

*too long to list*

Dynamic status info

Blocks with static settings only will
usually not be included, see conf
above.

- - chk off

chk off

ok

Checksum off

If issued twice in succession, this
command will disable checksums.
Note: Responses will still have the
checksums appended.

NOTE1: ? command turns the
checksum back on

- - locate on <seconds>

locate off

locate on 3

locate off

ok

Card locator

This command will cause all the
LEDs to flash for a user specified
number of seconds. If omitted, the
value <seconds> will be set to a
default of 120 seconds. The flashing
can be terminated at any time with
locate off.

- - address

address

address <address>

Card address

This command will check and update
the card's current frame and slot
address, which is normally only done
at start-up.

- - filename

filename udc3gxmux4­0-151.ffw
filename udc3gxmux4­0-102.mfw

<name>'.'<extension>

Firmware upgrades

The <name> part must match the
card's hardware and include a revision
number, and the extension must be
either 'ffw' for FPGA firmware or
'mfw' for microcontroller firmware.
After running this command the board
will wait for the firmware in Intel-hex
format.

- - fin

fin

ok

Finalize

Finalize the programming of the
microcontroller. See description of the
uC bootloader (separate document).

Appendix A RS422 commands

A.1 FLP4.0 required commands

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misc 0 -

NOT AVAILABLE
BY COMMAND.
ONLY FOUND in
Conf 0

prog | fin

' ' | ovr

Misc info

prog if the card is freshly
programmed by the bootloader and
the program is still un-finalized. fin is
the normal condition.
ovr if DIP-switch 16 is set to the ON
position and the card is under DIP­switch control.
Note 1: The info part of misc has
additional functionality when locate is
used: locating <remaining seconds>.
This enables a visible countdown
clock in Multicon GYDA, but is not a
required part of FLP400.

Block

Blk#

Commands

Example

Response

Control

ablk

0-3

dir in | out
track none | video

ablk 0 dir in
ablk 0 track
video

dir in | out
track video | none

AES I/O port 1-4

dir in | out sets the direction of the
AES I/O.
track selects whether AES delay
tracks the video delay or not.

agen 0 lvl <sine_level>cBFS

agen 0 lvl -180
agen 0 lvl -200

sine 1kHz lvl
<sine_level>cBFS

Audio generator

The amplitude of the generated
sine that can be chosen as fallback
in audio change-overs. Legal
values are -180cBFS or -200cBFS
(centiBel referred to full scale
output). Units are optional, but if
included must be written as cBFS
(case sensitive).

aprc

0-11

lr |
rl |
ll |
rr |
nlr |
lnr |
mm |
ms |
lvl <gain>

aprc 0 lr
aprc 3 ll
aprc 6 mm
aprc 7 lvl -400

lr |
rl |
ll |
rr |
nlr |
lnr |
mm |
ms

Audio processing

One block for each output from
cho 2-13. The meaning of the
commands are as follows:
lr = Normal
rl = Channel swapped
ll = Left channel to both output
channels
rr = Right channel to both output
channels
nlr = Left channel phase inverted
lnr = Right channel phase inverted
mm = Mono, both channels =
(r+l)/2
ms = Mono/stereo, m=(l+r)/2,
s=(l-r)/2
lvl means level and is the gain
setting.

ceq 0 -

ceq 0

cd | ncd

Cable equalizer for electrical
input. No control; only used to
report carrier detect or no carrier
detect.

cho 0 pri <k> |
pri <k> <l> |
pri <k> <l> <m>

pos man <k> |
pos auto

latch reset

cho 0 pri 0
cho pri 0 1
cho pri 10 2

cho 0 pos man 1
cho 0 pos auto

cho 0 latch reset

size 3 pri k,l,m auto
t1 <hold time> t2
<lock time>

size 5 pri k,l,m man m
latch t1 <hold time>
t2 <lock time>

Video input select

pri: a prioritized list of inputs,
used when change-over is
automatic. The list can have 1, 2 or
3 entries, or levels. Manual mode
is effectively the same as
automatic mode with one priority
level only, but has its own

A.2 Normal control blocks

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t1 <hold_time>

t2 <lock_time>

cho 0 t1 1000

cho 0 t2 1000

command.
0 = from electrical input
1 = from optical input
2 = internal video generator
3 = mute
4 = none
The module will always respond
with 3 levels, filling in 4=none for
the levels not used.
t1 and t2: change-over doesn't
happen immediately, as a
precaution against glitches and
unstable signals. The timers t1 and
t2 let the user decide how long (in
ms) we will cling on to a missing
input before we consider it gone
and move on to the next pri level,
and how long an input with a
higher priority should be present
before we consider it repaired and
switch back, respectively.

cho 1 size 3 pri k,l auto

size 3 pri k,l man m

No commands available. Included
to show internal status and to
update Multicon GYDA graphics.

cho

2-13

pri <k> |
pri <k> <l>

cho 2 pri 1
cho 5 pri 0 2

size 4 pri k,l

Audio fallback setting

Audio change-over blocks, one
cho per audio output from the
audio matrix, mtx 0. No other
settings but the priority list.
0 = from audio matrix
1 = sine
2 = AES with silence
3 = mute

Note: Only generators (pri 1, 2 or

3) are allowed to be set as first
and only priority.

cho

14

pri <k> |
pri <k> <l>

cho 12 pri 1
cho 12 pri 0 2

size 4 pri k,l

Embedded audio common
fallback setting

A short-cut to set change-overs 2-9
all at once. Will of course not
report anything in info, that's left
to the individual cho blocks.

demb

0-3 - demb 0
demb 2

grp k en

Audio de-embedders
one permanently assigned to each
incoming group, always enabled.
No control available.

dly 0 <frames>frms

dly 0 2frms

'tgt' <frames> frms

Video delay

This sets the additional video
delay of the card.
In info this block reports back the
current delay in nanoseconds. This
will vary with the incoming video
standard.

dly 1 <audio_samples>sps

dly 1 -30sps

'tgt' <audio_samples>
sps

audio delay for deembedded
audio

The audio delay is given in audio
samples. Audio delay is always
given relative to video.

dly 2 <audio_samples>sps

dly 2 42sps

'tgt' <audio_samples>
sps

audio delay for input AES 1

The audio delay is given in audio
samples. Audio delay is always
given relative to input AES 1.

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dly 3 <audio_samples>sps

dly 3 42sps

'tgt' <audio_samples>
sps

audio delay for input AES 2

The audio delay is given in audio
samples. Audio delay is always
given relative to input AES 2.

dly 4 <audio_samples>sps

dly 4 42sps

'tgt' <audio_samples>
sps

audio delay for input AES 3

The audio delay is given in audio
samples. Audio delay is always
given relative to input AES 3.

dly 5 <audio_samples>sps

dly 5 42sps

'tgt' <audio_samples>
sps

audio delay for input AES 4

The audio delay is given in audio
samples. Audio delay is always
given relative to input AES 4.

dly 6 <lines>lines <samples>sps

dly 6 1lines ­30sps

'phase' <lines> lines
<samples> sps

Video phase

If lines != 0 the resulting phase
will vary with incoming video
standard, see dly 0 above.

emb

0-3

en | dis

acp ( on | off )

use24 ( on | off )

del (off | (on <del12>
<del34>))

emb 0 en
emb 2 dis
emb 1 acp on
emb 3 acp off
emb 1 use24 on
emb 2 use24 off

emb 0 del off
emb 2 del on 54 ­432

(en | dis) use24 (on |
off) acp (on | off) del
(off | (on <del12>
<del34>))

Audio embedder block
en/dis: Enables or disables the

embedding of the group into the
ancillary area.

acp on/off: This is valid only for
SD and enables the audio control
package.

use24 on/off: This is only valid
for SD and selects between 24bit
and 20bit sound.

del off/on delay12 delay34: For
each of the embedder groups the
delay bits for ch1+2 and for ch3+4
can be inserted into the ACP. The
delay value can be positive and
negative and is put directly into the
ACP as it is written.

Note: To set both delays to 0
would be the same as turning the
delays off. The response reflects
this.

gpi 0 act |
inact

gpi 0 act
gpi 0 inact

WSS interpretation

inact: Normal WSS
act: WSS Extended

gpi 1 act |
inact

gpi 1 act
gpi 1 inact

Color space conversion disable

inact: auto (convert when needed)
act: disabled

gpi 2 act |
inact

gpi 2 act
gpi 2 inact

EDH insert select

This gpi works as a simple 2:1
switch.
inact : EDH off
act : EDH on

gpi 3 act |
inact

gpi 3 act
gpi 3 inact

Closed caption (CEA 708)
disable

act: Insertion disabled
inact: Insertion enabled

gpi 4 act |
inact

gpi 4 act
gpi 4 inact

Closed caption (Line 21) disable

act: Insertion disabled
inact: Insertion enabled

gpi 5 act |
inact

gpi 5 act
gpi 5 inact

Time code (ATC) disable

act: Insertion disabled

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inact: Insertion enabled

gpi 6 act |
inact

gpi 6 act
gpi 6 inact

Time code (VITC) disable

act: Insertion disabled
inact: Insertion enabled

gpi 7 act |
inact

gpi 7 act
gpi 7 inact

SMPTE 2010 disable

act: Insertion disabled
inact: Insertion enabled

gpi 8 act |
inact

gpi 8 act
gpi 8 inact

SMPTE 2020 disable

act: Insertion disabled
inact: Insertion enabled

mtx 0 <i1> <o1> ...<iN> <oN>
<i1> <o1>,<o2>,...<oN>
<i1> <o1> - <o2>

..or the above combined

mtx 0 0 2 1 4 5 5
mtx 0 0 0, 1 1, 2
2
mtx 0 0 0-9

mtx 0 0 0 1 1 2
2-7

size M:N i1 i2 i3... iN

Audio matrix

mtx 0 (size 14:13) controls the
audio matrix; outputs 0-7 are
embedded sound; outputs 8-11 are
AES output 1 to 4; output 12 is
datalink;
inputs 0-3 are AES inputs,
inputs 4-11 are deembedded
sound; 12=1kHz sine, 13=
mute/silence

Note: Any combination of the three
basic commands are allowed, for
instance the following command to
set up a 10x10 audio matrix in a
single line:
mtx 0 1 1 2 2 3 0,3-7
=> mtx 0 size 10:10 3 1 2 3 3 3 3
3 3

mtx 1 <i1> <o1> ...<i2> <o2>
<i1> <o1>,<o2>

mtx 1 0 0 1 1
mtx 1 0 0,1

size M:N i1 i2 i3... iN

Video output matrix

mtx 1 (size 2:2) controls the video
output switches.
0: Through mode (re-clocked only)
1: Processed mode (SDI from
FPGA

mtx 2 <i1> <o1>

mtx 2 0 0
mtx 2 1 0

size M:N i1 i2 i3... iN

-

This block has no functions in this
code.

mtx 3 <i1> <o1>

mtx 3 23 0

size M:N i1 i2 i3... iN

Default scaling select

mtx 3 (size 24:1) controls the
default scaling. The 12 fixed
scalings are 0-11, the 12 user
scalings are 12-23.

mtx 4 <i1> <o1> ...<iN> <oN>
<i1> <o1>,<o2>,...<oN>
<i1> <o1> - <o2>

..or the above combined

mtx 4 0 2 1 4 5 5
mtx 4 0 0, 1 1, 2
2
mtx 4 0 0-9

mtx 4 0 0 1 1 2
2-7

size M:N i1 i2 i3... iN

GPIs mapped to scalings

mtx 4 (size 25:16) controls how
the 4-bit GPI values are mapped to
the 24 available scalings. The 12
fixed scalings are 0-11, the 12 user
scalings are 12-23. The 25th option
is to not perform any action at all.

mtx 5 - - size M:N i1

Current scaling

mtx 5 (size 37:1) has no control, it
is only used to report the current
scaling back to the system
contoller. The 12 fixed scalings are
0-11, the 12 user scalings are 12-

23. 24-34 represent scalings 1-11
when they are selected by the auto
logic, 35 and 36 represent scaling
0 (no conversion) for output
environments 16:9 and 4:3

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UDC-3G-XMUX4+ Rev. C

respectively.

mtx 6 <i1> <o1>

mtx 6 0 0
mtx 6 0 1

size M:N i1 i2

Video filters

mtx 6 (size 5:2) controls the
strength of 6 video filters:
0: Low-pass when up-converting
1: Low-pass when down­converting
For all filters the following filter
strengths can be applied:
0: Off (No filtering)
1: Low
2: Medium
3: High
4: Maximum

mtx 7 <i1> <o1>

mtx 7 0 2
mtx 7 0 1

size M:N i1

Output environment

0: Always 4:3
1: Always 16:9
2: Best fit (fallback to 4:3)
3: Best fit (fallback to 16:9)

mtx 8 - size M:N i1 i2 i3

Purchased features

No commands available, this block
only used to report which options
have been purchased. i1 is input
options, i2 is output options, i3 is
the AES option (and can only be 0
or 8 in the table below).
0: No
1: SD
2: HD
3: HD+SD
4: 3G
5: 3G+SD
6: 3G+HD
7: 3G+HD+SD
8: Yes

pin 0 cd | ncd

Pin diode for optical input

No control; only used to report
carrier detect or not carrier detect.

pwr

0-3 - pwr 0

<nom_voltage>Vnom
<voltage>V

Power monitoring

The nominal voltages are listet
with the measured voltages. For
this product the following voltages
are measured:
0: 1.2Vnom
1: 2.5Vnom
2: 1.2Vnom
3: 5.0Vnom

optn

0-6 -

optn N act | inact

Purchased features
Each optn block will tell if a
particular feature is enabled.
This is really a less compact way
of showing the same as in mtx 8,
except that the mechanism to
have mtx show up in the GUI
already was in place.
optn 0: SD input
optn 1: HD input
optn 2: 3G input
optn 3: AES I/O
optn 4: SD output
optn 5: HD output
optn 6: 3G output

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UDC-3G-XMUX4+ Rev. C

rcl 0 -

rcl 0

lock | lol

Reclocker
No control, only used to report
lock status.

scale

0-11 - -

out zoom <Hscale>
<Vscale> pos
<Hpos> <Vpos> afd
<AFD-code>

Fixed scaler blocks.
12 fixed scale settings. The user

can’t change anything, but can use

the settings for his own reference.

scale

12-23

out zoom <Hzoom>
<Vzoom>
out pos <Hpos> <Vpos>

out env (16/9 | 4/3)

out afd <AFD-code>

scale 12 out
zoom 1.33 1.33
scale 12 out pos

0.002 0.002

scale 12 out env
16/9
scale 12 out env
4/3

scale 12 out afd
8
scale 12 out afd
11

out zoom <Hscale>
<Vscale> pos
<Hpos> <Vpos> env
( 16/9 | 4/3 ) afd
<AFD-code>

User scale blocks.

12 user scale settings.

Zoom:

Zoom range is from 0.5 to 1.5.

Position:

Position when zoom is < 0 defines
where in the output frame the box
is placed. The box will never move
outside of the frame.

When zoom is > 0 the position
defines which part of the input
picture to use.

A value of 0 is center. Positive
values moves picture to the right
or up. Negative values moves
picture to the left or down.
AFD code:
The AFD code that is inserted is 5
bits. The user can specify the 4
least significant bits here, while
the 5th bit is taken from the ‘output
environment’ setting in scale 24.

scale

24-31

out
<lines>’/’<framerate>(’i’/’p’)

out fill ( full | crop | 14/9 )

rule <rule-value>

ins <insert-value>

Scale 24 out
1080/25i

scale 24 out fill
full

rule 0x02

insert 0x20

scale 24 rule 0x1 use
0xF ins 0x20 use
0x3E fill full out
1080/25i

Master scale control block

This block sets the output video
standard and the rules that will be
used to determine the scaling used.
In addition it also controls what
packages will be inserted on the
output to describe the video to
down-stream equipment.
There are 8 different versions of
this block, and at one time only
one will be shown and be able to
receive commands. The reason for
this to allow 8 different XMLs for
the 8 different combinations of
allowed output video standards.

scale 24: if no output available
scale 25: if only SD available
scale 26: if only HD available
scale 27: if HD+SD available
scale 28: if only 3G available
scale 29: if 3G+SD available
scale 30: if 3G+HD available
scale 31: if 3G+HD+SD available

Output video standards:

576/25i (SD)
486/29i (SD)
720/50p (HD)
720/59p (HD)
1080/25i (HD)
1080/29i (HD)
1080/50p (3G)
1080/59p (3G)

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UDC-3G-XMUX4+ Rev. C

Fill:

Fill selects how much of the
picture is preserved.
full: protect input frame
crop: zoom to fill frame
14:9: scale to 14:9 PB or LB

Rule:

<rule-value> can take on the
following values, and tells the card
which incoming aspect ratio
information to use:
0x01: AFD -> Fill -> Default
0x02: AFD -> Default
0x04: Fill -> Default
0x08: Default
No other values will be accepted
by the card, no combinations are
available.

Insert:

The <insert -value> can be any
binary combination of the
following values:
0x02: WSS Extended
0x04: WSS
0x08: SMPTE352
0x10: Video Index
0x20: AFD
Note that the value 0x01 is not
currently supported, and that the
card therefore will only accept
even numbers as <insert-values>.
Also note that WSS and WSS
Extended cannot be inserted at the
same time, as they only differ in
the bit interpretation.

supr 0 en | dis | auto
lb <page> <L1>
<L2>…<L16>
font <tag>

supr 0 auto
supr 0 lbl 0 65 66
67 0
supr 0 font 1252

Supr 0 en font 0x4e4
lb 0 86 73 68 69 79
10 76 65 66 69 76

Label generator

A label generator can be
superimposed on the video. The

setting ‘en’ means it is always
superimposed, ‘dis’ means it is
never superimposed, and ‘auto’

means it is superimposed on the
internal video generator only.
The text in the label can be set or
modified by the lb <page> sub­command, where page is 0 to
operate on letters 1-16 or 1 to
operate on the letters 17-32.
The letters follow as a string of
ASCII numbers. To write more
than 16 letters, two commands
must be issued. A string is always
terminated at an ASCII 0, and
ASCII 10 is linefeed/new line.
Only the first ASCII 10 will be
honored.
In the second example command,

the label string is set to ‘ABC’ and

terminated with ASCII 0. If not
terminated, the command
would’ve modified the first 3
letters of the string, but any
remains of a previous string would

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UDC-3G-XMUX4+ Rev. C

still be present (until ASCII 0 or
33rd letter encountered).

Note 1: When the flash is busy
programming the FPGA or is
being programmed with new
FPGA code, label information can
not be updated.
Note 2: At the present, only one
font/codepage (codepage 1252) is
included in the module.

sync

0 - sync 0

'lol' | ('lock' ('trilvl' |
'bb' | 'sdi') )

Frequency reference for video
output. Status only, no commands
available.

uart 0 - tx

The embedded data link, selectable
by cho 13. No control possible, the
word tx indicates that this is a
transceiver only.
Uart info reports link status: los
(loss of signal), raw, or the speed
of the embedded link (example:
115200/8/n/1).

vgen 0 cbar |
mcbar |
chkfield |
white |
yellow |
cyan |
green |
magenta |
red |
blue |
black

flat <Y> <Cb> <Cr>

video <lns>/<rate><scan>

wss (auto|off | (on
<wss_val>) )

vgen 0 cbar

vgen 0 flat 200
0 100
vgen 0 video
1080/24p
vgen 0 video
1080/25p
vgen 0 video
1080/25i
vgen 0 video
1080/29i
vgen 0 video
1080/30i
vgen 0 video
720/24p
vgen 0 video
720/25p
vgen 0 video
720/29p
vgen 0 video
720/30p

vgen 0 wss auto
vgen 0 wss on 7

video
<lns>/<rate><scan>
wss ( auto| off | ( on
<wss_value> ) ) (cbar
| chkfield | mcbar |
white | yellow | cyan |
green | magenta | red |
blue | black | (flat
<Y> <Cb> <Cr>) )

Internal video generator.

The video generator will be
activated in two different ways: If
selected as a fallback option the
generator will generate the
selected pattern when the other
input(s) are missing, and then use
the video settings from the last
external source present. It can also
be selected as the main input in
cho 1, in which case its own video
settings will also be used.

vmon

0

msk <16b_mask>

reset

vmon 0 msk
0xFFFF

vmon 0 reset

msk <16b_mask>

Video monitoring.

Error counting. The count itself is
reported in info. Errors can be
masked off and not counted; this is
the purpose of the mask. The
counter itself is 16b and will wrap
around, but can also be reset by
issuing reset.

vprc 0 lglz on |
lglz off

vprc 0 lglz on
vprc 0 lglz off

Video processing block

Gain and offset are both signed

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UDC-3G-XMUX4+ Rev. C

(y | cb | cr) <gain> <offset>

vprc 0 y 1.0000 0
vprc 0 cb 1.0000
0
vprc 0 cr 1.0000
0

fixed point numbers. Gain is in

2.13-format, while offset for Y and
the chroma channels are given in

10.2 and 9.2 respectively.
Gain range is 0 – 3.9999, Gain

=0x

= 0, Gain

=1x

= 1.0, Gain

~4x

=

3.9999
Luma Offset range is -511.75 –

511.75, Offset=0 = 0
Chroma Offset range is -255.75 –

255.75, Offset=0 = 0

Block

Blk#

Commands

example

Response

Control

spi - on | off

spi on
spi off

spi off used to isolate the uC from the
SPI lines during programming of the
flash by external programmer. spi on
must be issued in order to re-enable
normal card operation with the uC as
the SPI master.

spir - <address>

spir 0x0004

Read a single word (or byte) from SPI
registers. Addressing is 16b and most
significant nibble determines which
chip. These are the address ranges:
0x0000 – 0x0fff : iChip
0x1000 – 0x1fff : de-serializer
0x2000 – 0x2fff : FPGA
0x3000 – 0x3fff : flash
0x4000 – 0x4fff : serializer
0x5000 – 0x5fff : F-RAM

spiw - <address> <data>

spiw 0x0004 0x2c

With the same address ranges as for
spir above, this command allows the
user to modify SPI registers.

thebug

- - thebug

A collection of debug information that
is presented in a Multicon GYDA
block-like format. First line tells
which image is currently loaded.
Second line contains the filename and
version of the uC software, including
the AVR controller it was compiled
for. The third line contains the SW
flags in uC, the number of times the
watchdog timer has kicked in, readout
of dip-switches, input select for
deserializer, SDOn on/off, slew rates,
and status for the video changeovers.
The next two lines contain raster
information from the deserializer and
serializer respectively, while the next
two lines contain sample values for
mlines and VCXO.

A.3 Commands intended for debug/lab use only

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UDC-3G-XMUX4+ Rev. C

Data rate optical:

270 – 2970 Mbps

Sensitivity

- SD-/HD-SDI (270/1485
Mbps):

- 3GHD-SDI (2970 Mbps)

Better than -20 dBm (short haul) /-30 dBm (long haul)
Better than -20 dBm (short haul) /-28 dBm (long haul)

Detector overload threshold:

Min. -3 dBm (-8 dBm long haul version)

Detector damage threshold:

>+1 dBm

Optical wavelength:

1200-1620 nm

Transmission circuit fiber:

9/125 µm Single Mode

Connector return loss:

>40 dB w/ SM fiber

Connector:

SC/UPC

Connectors

75 Ohm BNC

Equalization

Automatic;
>275 m @270 Mbps w/Belden 8281, with BER < 10E-12
>100 m @1485 Mbps w/Belden 1694A, with BER < 10E-12
>75 m @2970 Mbps w/Belden 1694A, with BER < 10E-12

Input Return loss

>15 dB, 5 MHz -1.5 GHz
>10 dB, 1.5 GHz – 3 GHz

Jitter tolerance

SD limit:
10 Hz-1 kHz: >1 UI
10 kHz – 5 MHz: >0.2 UI
HD limit:
10 Hz-100 kHz: >1 UI
100 kHz–10 MHz: >0.2 UI
3G limit:
10 Hz-100 kHz: >2 UI
100 kHz–10 MHz: >0.3 UI

Connector

75 Ohm BNC

Format

Black & Burst, Tri-level

Input Return loss
Termination

>35 dB @ < 10 MHz,
>28 dB @ < 30 MHz
Selectable internal or external 75 Ohm termination

Number of outputs

4

Connectors

75 Ohm BNC

Output Return loss

>15 dB, 5 MHz -1.5 GHz
>10 dB, 1.5 GHz – 3 GHz

Output signal level

800 mV +/- 10%

Output signal rise / fall time
20% - 80%

SD limit: [0.4 ns – 1.5 ns]; <0.5 ns rise/fall var.
HD limit: <270 ps, <100 ps rise/fall var.
3G limit: <135 ps, <50 ps rise/fall var.

Amplitude overshoot

<10%

Output timing jitter

SD: <0.2 UI
HD: <1 UI
3G: <2 UI

Appendix B Specifications

Optical SDI input

Electrical SDI input

Electrical Sync input

Electrical SDI outputs

nevion.com | 54

UDC-3G-XMUX4+ Rev. C

Output alignment jitter

SD: <0.15 UI
HD: <0.15 UI
3G: <0.3 UI

Number of inputs/outputs

4

Connectors

WECO

Output jitter

<0.0025 UI peak

Impedance

110 Ohm transformer balanced

Input audio data rate

24 kHz to 100 kHz, converted to 48 kHz if not isochronous to
either SDI input or sync input.

Embedded audio word
length

24 bits

Embedded audio Channels
status

As received when isochronous, otherwise replaced by a static
value.

Maximum delay line

28368 audio samples (48 kHz)

SD, 270 Mbps

SMPTE 259M, SMPTE 272M-AC

HD, 1485 Mbps
3G, 2970 Mbps

SMPTE 292M, SMPTE 274M, SMPTE 291M, SMPTE 296M,
SMPTE 299M
SMPTE 424M, SMPTE 425, SMPTE 291M, SMPTE 299-0,
SMPTE 299-1

Color space conversions

BT.601, BT.709

Video switch point definition
and sync

SMPTE RP168 (tri-level), SMPTE 170m, ITU-R. BT.470
AES

AES3-1996

Optical

SMPTE 297M, SMPTE 292M

EDH

Compliant to SMPTE-RP165

Video Payload Identification
Time Code
Closed Caption
MPEG Messages
Audio Metadata

SMPTE 352M-2002
SMPTE12M
SMPTE334, CEA-708, CEA-608
SMPTE2010
SMPTE2020 2

Maximum power, at 50°C

9.0 W 3

Deduct for no optical input

0.5 W

Deduct for no AES option

0.8 W

2
3

AES I/O

Supported standards

Power consumption (+5 VDC)

Only one stream is transported in the first release. Full SMPTE2020 compliance will be added in FPGA release 1.60.
Actual power consumption varies considerably with the combination of input and output video standards used. Please see the

complete table in “Power requirements”, chapter 2.1.

nevion.com | 55

UDC-3G-XMUX4+ Rev. C

1.

The equipment will meet the guaranteed performance specification under the following
environmental conditions:

-

Operating room temperature range:

0°C to 45°C

-

Operating relative humidity range:

<90% (non-condensing)

2.

The equipment will operate without damage under the following environmental
conditions:

-

Temperature range:

-10°C to 55°C

-

Relative humidity range:

<95% (non-condensing)

Appendix C General environmental requirements for Nevion equipment

nevion.com | 56

UDC-3G-XMUX4+ Rev. C

組成名稱

Part Name

Toxic or hazardous substances and elements

鉛

Lead

(Pb)

汞

Mercury

(Hg)

镉

Cadmium

(Cd)

六价铬

Hexavalent

Chromium

(Cr(VI))

多溴联苯

Polybrominated

biphenyls

(PBB)

多溴二苯醚

Polybrominated

diphenyl ethers

(PBDE)

UDC-3G-XMUX4+
UDC-3G-XMUX4-R+
UDC-3G-XMUX4-R-L+

O O O O O

O

O: Indicates that this toxic or hazardous substance contained in all of the homogeneous materials for this part is
below the limit requirement in SJ/T11363-2006.

X: Indicates that this toxic or hazardous substance contained in at least one of the homogeneous materials used
for this part is above the limit requirement in SJ/T11363-2006.

Appendix D Materials declaration and recycling information

D.1 Materials declaration

For product sold into China after 1st March 2007, we comply with the “Administrative

Measure on the Control of Pollution by Electronic Information Products”. In the first stage of

this legislation, content of six hazardous materials has to be declared. The table below
shows the required information.

This is indicated by the product marking:

D.2 Recycling information

Nevion provides assistance to customers and recyclers through our web site

http://www.nevion.com/. Please contact Nevion’s Customer Support for assistance with

recycling if this site does not show the information you require.
Where it is not possible to return the product to Nevion or its agents for recycling, the

following general information may be of assistance:

 Before attempting disassembly, ensure the product is completely disconnected from

power and signal connections.

 All major parts are marked or labeled to show their material content.
 Depending on the date of manufacture, this product may contain lead in solder.
 Some circuit boards may contain battery-backed memory devices.

nevion.com | 57

UDC-3G-XMUX4+ Rev. C

Product Warranty

The warranty terms and conditions for the product(s) covered by this manual follow the
General Sales Conditions by Nevion, which are available on the company web site:

www.nevion.com

nevion.com | 58

EC Declaration of Conformity

MANUFACTURER

Nevion

AUTHORIZED REPRESENTATIVE
(Established within the EEA)

Not applicable

MODEL NUMBER(S)

UDC-3G-XMUX4+
UDC-3G-XMUX4-R+
UDC-3G-XMUX4-R-L+

DESCRIPTION

3G/HD/SD-SDI Format and Standard converter with
Frame Synchronizer and 4x AES I/O

DIRECTIVES this equipment complies with

Low voltage (EU Directive 2006/95/EC)
EMC (EU Directive 2004/108/EC)
RoHS (EU Directive 2002/95/EC)
China RoHS4
WEEE (EU Directive 2002/96/EC)
REACH

HARMONISED STANDARDS applied in order
to verify compliance with Directive(s)

EN 55103-1:1996
EN 55103-2:1996
EN 60950-1:2006

TEST REPORTS ISSUED BY

Notified/Competent Body

Report no:

-

-

TECHNICAL CONSTRUCTION FILE NO

Not applicable

YEAR WHICH THE CE-MARK WAS AFFIXED

2010

TEST AUTHORIZED SIGNATORY

MANUFACTURER

AUTHORIZED
REPRESENTATIVE
(Established within EEA)

Date of Issue

2011-06-16

Place of Issue

Not applicable

Sandefjord, Norway

Name

Thomas Øhrbom

Position

VP of Business Support Systems,
Nevion
(authorized signature)

4

Administration on the Control of Pollution Caused by Electronic Information Products

Tel: [phone] – Fax: [phone] – www.nevion.com

Nevion HQ:

Nevion Europe, P.O. Box 1020, 3204 Sandefjord, Norway