Nevion SPG-AVA-DMUX User Manual

SPG-AVA-DMUX

SPG-AVA-DMUX-R

Sync-Pulse Generator/Replicator

with Linear Time Code and AES reference outputs

User manual

Rev. C

Nevion

Nordre Kullerød 1
3241 Sandefjord
Norway
Tel: [phone]

nevion.com

SPG-AVA-DMUX 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 B 2014-11-06

CC

Updated de-embedder latency

B A 2013-10-29

TB

Corrected bit depth for analog video

A 0 2013-06-13

TB /

JR

Replaced top view of the module, updated
description of the DIP switch groups; new
template

0 - 2012-09-03

TB

Initial version

Nevion Support

Revision history

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

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SPG-AVA-DMUX Rev. C

Contents

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

1 Product overview ................................................................................................... 4

1.1 The core functionality .................................................................................................... 4

1.2 Secondary functionality ................................................................................................. 4

1.2.1 Audio sync output ....................................................................................................... 4

1.2.2 Linear time code output .............................................................................................. 4

1.2.3 Input change-over with fallback to internal generators ................................................ 4

1.3 Product variants and how they differ ............................................................................. 5

2 How to get started ................................................................................................. 6

2.1 Power requirements ...................................................................................................... 6

2.2 Physical connections ..................................................................................................... 6

2.2.1 Sync input .................................................................................................................. 7

2.3 What the LEDs mean .................................................................................................... 8

2.3.1 Exceptions/special conditions for the LEDS ............................................................... 8

2.4 Selecting between Gyda mode or Manual mode ........................................................... 8

2.5 A very brief guide to Gyda mode set-up ........................................................................ 9

2.6 How to get back to factory defaults? .............................................................................. 9

3 Detailed control.................................................................................................... 10

3.1 Detailed control in manual mode ..................................................................................10

3.1.1 Rotary switch and push buttons.................................................................................10

3.1.2 DIP switch functions ..................................................................................................10

3.1.3 Factory reset function ................................................................................................12

3.2 Detailed control in Gyda mode .....................................................................................13

3.2.1 Information page .......................................................................................................13

3.2.2 Configuration page ....................................................................................................14

3.2.3 Phase delay ..............................................................................................................14

3.2.4 Subcarrier delay ........................................................................................................15

3.2.5 Linear time code ........................................................................................................15

3.2.6 Video input ................................................................................................................15

3.2.7 Output switch ................................................................ ............................................17

3.2.8 Frequency lock mode ................................................................................................17

3.2.9 Analog sync mode .....................................................................................................17

3.2.10 Digital audio sync mode ..........................................................................................17

3.2.11 Tri-level standard ....................................................................................................18

3.2.12 Black-burst standard ...............................................................................................18

3.2.13 Signal integrity .........................................................................................................18

Appendix A Specifications ...................................................................................... 20

Appendix B General environmental requirements for Nevion equipment ............... 22

Product Warranty.................................................................................................... 23

Appendix A Materials declaration and recycling information .................................. 24

A.1 Materials declaration ....................................................................................................24

A.2 Recycling information ...................................................................................................24

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SPG-AVA-DMUX Rev. C

1 Product overview

Figure 1: Simplified block diagram of the SPG-AVA-DMUX card

1.1 The core functionality

The SPG-AVA-DMUX takes an SDI input signal and uses this as a frequency reference to
generate an analog sync signal, either Black burst or Tri-level. The sync signal is also
available in digital SDI form on two BNC outputs, and these signals can then be fed to DACs
or distribution amplifiers. Alternatively, the signal on these BNC outputs can be taken directly
from the reclocked input.

A full frame synchronizer and de-glitcher handles interruptions on the input and ensures that
the signal to the frequency generating logic is kept stable. If the input should disappear, the
SPG-AVA-DMUX will still generate Black burst or Tri-level signal with the same frequency.

The frequency generating logic has two modes: One that will react instantly to input frequency
changes and try to follow it (slave mode), and one that will average out frequency variations
over a long time (master mode). If cascading several SPG-AVA-DMUX units, the first could
be put in master mode to average out frequency variations, while the down-stream units
should be put in slave mode to follow the frequency generated by the master as tightly as
possible.

1.2 Secondary functionality

1.2.1 Audio sync output

At the same time as producing the video sync signal, the SPG-AVA-DMUX also generates
an audio reference signal based on the same input frequency. This can be either AES11 or
Word clock, both intended to synchronize external audio equipment, and thereby prevent
unintentional and unnecessary use of sample rate converters. The audio sync output will still
be generated if the input signal is lost.

1.2.2 Linear time code output

Linear Time Code (LTC) is de-embedded and available on a separate output. Since this is
de-embedded from the input and not generated, the output will be missing if the input signal
disappears.

1.2.3 Input change-over with fallback to internal generators

The SPG-AVA-DMUX comes with an electrical SDI input and an additional (optional) optical
input. Sophisticated input selection logic can switch between the physical input when signals
are available, and/or switch to internal video generators in the event that no physical input is
present.

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SPG-AVA-DMUX Rev. C

SPG-AVA-DMUX

Sync-pulse generator with one electrical input only.
Three analog video outputs (Black burst or Tri-level), one digital

audio sync output (AES11 or Word clock), and two SDI outputs (SDI
version of the Analog video output, or a reclocked version of the input
signal).

SPG-AVA-DMUX-R

Sync-pulse generator with one electrical input and one high
sensitivity 9/125µm single mode optical input.

Three analog video output (Black burst or Tri-level), one digital audio
sync output (AES11 or Word clock), and two SDI outputs (SDI
version of the Analog video output, or a reclocked version of the input
signal).

1.3 Product variants and how they differ

Only two variants of the SPG-AVA-DMUX exist: With and without optical input. The variant
with optical input is denoted with an -R appended to its name. Both variants have the electrical
input, and the variant with optical input can use one input as fallback for the other.

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SPG-AVA-DMUX Rev. C

2 How to get started

2.1 Power requirements

The absolute maximum total power consumption for this module is 6.75 W, of which 4.2 W
are drawn from the +5 V supply, 2.3 W are drawn from the +15 V supply, and 0.25 W are
drawn from the -15 V supply. These numbers include 0.5 W from the +5 V supply for the
optional optical input module, and the calculation of how many modules can be powered by
a single power supply can thus be based on 3.7 W for the SPG-AVA-DMUX and 4.2 W for
the SPG-AVA-DMUX-R.

Note that the module will draw its power from multiple supply voltages. When

calculating the number of modules that can safely be used in one frame, it’s

important to consider each supply voltage separately for the power supply in
question. In general there will be no load-sharing between the supply voltages,
and the number of modules will be limited by the worst-case result from the
individual calculations.

2.2 Physical connections

Figure 2: The cable side of the backplane, SPG-AVA-DMUX-C1

The backplane for the SPG-AVA-DMUX is labeled SPG-AVA-DMUX/-R. 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.

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SPG-AVA-DMUX Rev. C

Function

Label

Connector type

HD/SD-SDI input

IN

BNC

HD/SD-SDI sync output 1

O1

BNC

HD/SD-SDI sync output 2

O2

BNC

Analog sync output, Y/G/CVBS

Y/G/CVBS

BNC

Analog sync output, Pb/B/Y

PB/B/Y

BNC

Analog sync output, Pr/R/C

PR/R/C

BNC

Linear time code output 1

AAL

WECO Audio connector

Positive
GND
Negative

Linear time code output 2

AAR

WECO Audio connector

Positive
GND
Negative

AES11 / Word clock output

AES

WECO Audio connector

Positive
GND
Negative

Optical input

No label

BSC-II (for SC input)

Sync input (Not in use)

SYNC

BNC

Table 1: Connector functions

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

2.2.1 Sync input

The sync connector is not in use for the SPG-AVA-DMUX(-R) and is therefore blocked by a
protective cap.

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SPG-AVA-DMUX Rev. C

Diode \ state

Red LED

Orange LED

Green LED

No light

Card status

PTC fuse has been

triggered or FPGA

loading has failed

FPGA

loading. If

more than a

few seconds:

DIPs 14+15

both set to the

‘On’ position,

or module not

programmed

FPGA loaded,

module OK

Module has no

power

SDI input

status

Video signal absent

Video signal

present but

card not able

to lock VCXO

Video input

signal in lock

Module not

programmed, or

DIPs 14+15 both

set to the ‘On’

position

Sync input

status

The SPG-AVA-DMUX does not use the sync input.

The Sync input LED always shows the same state as the SDI input LED.

Audio input

status

(Group 1 is

the LTC
source)

No audio

embedded in

Group 1

---

Audio

detected in

Group 1

Module not

programmed, or

DIPs 14+15 both

set to the ‘On’

position

2.3 What the LEDs mean

Table 2: LED states and what they mean

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 operation 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 SPG-AVA-DMUX 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 via 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
sync-pulse generator.

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