Axon Synapse 2AS12 User manual

____________________________________________
2AS12
Dual 12bit composite decoder with 5 line
Comb filter and frame synchronizer

Lange Wagenstraat 55
NL-5126 BB Gilze
The Netherlands
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
Web: www.axon.tv
TECHNICAL MANUAL
2AS10
Dual 12 bit composite decoder with 5 line
Comb filter and frame synchronizer.

1
WARNING: TO REDUCE THE RISK OF FIRE OR
ELECTRICAL SHOCK, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR MOISTURE
●ALWAYS disconnect your entire system from the AC mains before cleaning any component. The product
frame (SFR18 or SFR04) must be terminated with three-conductor AC mains power cord that includes an
earth ground connection. To prevent shock hazard, all three connections must always be used.
●NEVER use flammable or combustible chemicals for cleaning components.
●NEVER operate this product if any cover is removed.
●NEVER wet the inside of this product with any liquid.
●NEVER pour or spill liquids directly onto this unit.
●NEVER block airflow through ventilation slots.
●NEVER bypass any fuse.
●NEVER replace any fuse with a value or type other than those specified.
●NEVER attempt to repair this product. If a problem occurs, contact your local Axon distributor.
●NEVER expose this product to extremely high or low temperatures.
●NEVER operate this product in an explosive atmosphere.
Warranty: Axon warrants their products according to the warranty policy as described in the general terms.
That means that Axon Digital Design BV can only warrant the products as long as the serial numbers are not
removed.
Copyright © 2001 – 2006 AXON Digital Design B.V.
Date created: 18-10-05
Date last revised: 11-11-06
Axon, the Axon logo and Synapse are trademarks of Axon Digital Design B.V.
This product complies with the requirements of the product family standards for audio, video, audio-visual
entertainment lighting control apparatus for professional use as mentioned below.
EN60950
EN55103-1: 1996
EN55103-2: 1996
Safety
Emission
Immunity
Axon Digital Design 2AS12
Tested To Comply
With FCC Standards
FOR HOME OR OFFICE USE
This device complies with part 15 of the FCC Rules
Operation is subject to the following two conditions:
(1) This device may cause harmful interference, and
(2) This device must accept any interference received, including
interference that may cause undesired operation.

2
Table of Contents
Chapter 1 Introduction to Synapse 3
An introduction to Synapse 3
Local Control Panel 3
Remote Control Capabilities 3
Introduction to TWINS 4
Chapter 2 Unpacking and Placement 5
Unpacking 5
Placing the card 5
Chapter 3 A Quick Start 6
When powering-up 6
Default settings 6
Changing parameters and settings 6
Front Panel Control 6
Example of changing parameter using
Front Panel control
7
Synapse Setup Software 8
Menu Structure Example 8
Chapter 4 The 2AS12 card 9
Introduction 9
Key Features 9
Chapter 5 Settings Menu 10
Chapter 6 Status Menu 15
Chapter 7 Events Menu 16
Chapter 8 LED Indication 19
Chapter 9 Block Schematic 20
Chapter 10 Connector panel 21

3
1 Introduction to Synapse
An Introduction to
Synapse Synapse is a modular system designed for the broadcast industry.
High density, intuitive operation and high quality processing are key
features of this system. Synapse offers a full range of converters and
processing modules. Please visit the AXON Digital Design Website
at www.axon.tv to obtain the latest information on our new products
and updates.
Local Control
Panel The local control panel gives access to all adjustable parameters and
provides status information for any of the cards in the Synapse
frame, including the Synapse rack controller. The local control panel
is also used to back-up and restore card settings. Please refer to the
RRC18, RRC10 and RRC04 manuals for a detailed description of
the local control panel, the way to set-up remote control over IP and
for frame related settings and status information.
Remote Control
Capabilities The remote control options are explained in the rack controller
(RRC18/RRC10/RRC04) manual. The method of connection to a
computer using Ethernet is described in the RRC manual.
! CHECK-OUT: “SYNAPSE SET-UP” SOFTWARE WILL
INCREASE SYSTEM FLEXIBILITY OF ONE OR MORE
SYNAPSE FRAMES
Although not required to Setup a Synapse frame, you are strongly
advised to use a remote personal computer or laptop PC with the
Synapse Setup software as this increases the ease of use and
understanding of the modules.

4
1 Introducing TWINS
TWINS double-density modules are very efficient as they contain
two channels of the same functionality. Cost-effective and space
efficient, you can use TWINS modules independently or together
with other Synapse cards in Axon’s ultimate modular broadcast
system.
TWINS is developed to serve two purposes:
•Extremely high space efficiency by providing 36 individual
processing channels in 4RU.
•Superb flexibility for the customer: TWINS and other
Synapse cards can be housed independently or in the same
Synapse frame.
TWINS is an important enhancement of AXON’s Synapse range and
is another example of how AXON translates future proof and
customer compatibility into products.

5
2Unpacking and Placement
Unpacking The Axon Synapse card must be unpacked in an anti-static
environment. Care must be taken NOT to touch components on the
card – always handle the card carefully by the edges. The card must
be stored and shipped in anti-static packaging. Ensuring that these
precautions are followed will prevent premature failure from
components mounted on the board.
Locating the card The Synapse card can be placed vertically in an SFR18 frame or
horizontally in an SFR04 frame. Locate the two guide slots to be
used, slide in the mounted circuit board, and push it firmly to locate
the connectors.
Correct insertion of card is essential as a card that is not located
properly may show valid indicators, but does not function correctly.
REMARK: On power up all LEDs will light for a few seconds, this
is the time it takes to initialise the card.

6
3A Quick Start
When Powering-up On powering up the Synapse frame, the card set will use basic data
and default initialisation settings. All LEDs will light during this
process. After initialisation, several LEDs will remain lit – the exact
number and configuration is dependant upon the number of inputs
connected and the status of the inputs.
Default settings In its default condition, the 2AS12 will act as an Analog video to
SDI converter with the frame synchronizer activated when a
reference is connected. The card will automatically recognize the
CVBS format.
Changing settings
and parameters The front panel controls or the Synapse Set-Up Software can be used
to change settings. An overview of the settings can be found in
chapter 5, 6 and 7 of this manual.
Front Panel
Control Front Panel Display and Cursor
Settings are displayed and changed as follows;
Use the cursor ‘arrows’ on the front panel to select the menu and
parameter to be displayed and/or changed.
Press ►To go forward through the menu structure.
Press ◄To go back through the menu structure.
Press ▲To move up within a menu or increase the value of
a parameter.
Press ▼To move down through a menu or decrease the
value of a parameter.
REMARK: Whilst editing a setting, pressing ►twice will reset the
value to its default.
[
No Alarms]

7
Example of
changing
parameters using
front panel control
With the display as shown below
Pressing the ►selects the 2AS12 in frame slot 01.
The display changes to indicate that the 2AS12 has been selected. In
this example the Settings menu item is indicated.
Pressing the ►selects the menu item shown, in this example
Settings.
(Pressing ▲or ▼will change to a different menu eg Status,
Events).
The display changes to indicate that the 2AS12 Settings menu
item SDI-Format has been selected and shows that it current
setting is Auto.
Pressing the ►selects the settings item shown, in this example
SDI-Format.
(Pressing ▲or ▼will change to a different setting, eg Mode, H-
Delay).
The display changes to indicate that the 2AS12 Edit Setting
menu item SDI-Format has been selected.
To edit the setting of the menu item press ▲or ▼.
All menu items can be monitored and/or changed in this way.
Changing a setting has an immediate effect.
RRC18 [Select Card]
>
S01=2AS12
2AS12 [Select Menu]
>Settings
2AS12 [Settings]
>SDI
-
F
ormat=Auto
2AS12 Edit Setting]
SDI
-
F
ormat>Auto

8
Synapse Setup
Software
Synapse Setup Software can be used to change the settings of
Synapse modules from a PC, either locally or remotely. The software
enables communication based on TCP/IP between the Setup PC and
Synapse frames/modules.
Each Synapse frame is addressed through its rack controller’s unique
IP address, giving access to each module, its menus and adjustment
items. The Synapse Setup software has access to data contained
within the Synapse module and displays it on a GUI. The software
has an intuitive structure following that of the module that it is
controlling.
Having selected the desired Frame and Module from the GUI
Synapse Network View, select the menu item that you wish to open.
Opening the menu item gives a complete list of available properties
with their associated Value.
For example to change a setting e.g. SDI-Format, select SDI-Format
form the list of settings by ‘double clicking’ to open a dialogue box.
The dialogue box allows parameters to be changed or set to default
value. On completion close the dialogue box.
Menu Structure
Example
Slot Module Item Parameter Setting
▲
▲
S02 Identity
▲▲
S01 2AS12 ►Settings ►Standard_dig ►Auto
▼▼▼▼
S00 RRC18 Status Mode 625
▼▼▼
Events Ref-Input 525
▼
H-Delay
▼
▼
REMARK: Further information about Front Panel Control and
Synapse Setup Software can be obtained from the RRC18 and
RRC04 operational manuals.

9
4 The 2AS12 Card
Introduction The 2AS12 is a broadcast quality dual channel composite decoder
with frame synchronizer. The 12-bit high performance digital
decoding stages provide superior quality 5 line comb filtering.
Because the 2AS12 (TWINS) has 2 fully independent channels, it
increases the Synapse decoding density by 100% and allows 36
individual composite decoders in 4 rack units. When no frame
synchronization is required the 2AS11 does the job.
Three Serial
Digital Outputs Three processed digital outputs are available for each input.
Automatic
Standard
Selection
Both SDI inputs channels have Automatic standard selection. 625
AND 525 are the standards that are recognized.
Back planes BPL11 is the backplane for the 2AS12. See chapter 10 for
connections.
Miscellaneous The 2AS12 cards fit into the Axon SFR04 & SFR18 racks.
LEDs at the front of the board indicate the presence of an
I
nput
signal, Connection & Processor Errors.
The 2AS12 can be controlled by Axon Synapse set-up software.
A and B input In the software A and B is mentioned, A is for input_1, Bis for
input_2.

10
5Settings Menu
Introduction The settings menu displays the current state of each setting within
the 2AS12 and enables the item to be changed or adjusted.
Settings can be changed using the front panel of the Synapse
frame (SFR18, SFR08 or SFR04) or Synapse Setup software.
Please refer to chapter 3 for information on the Synapse front
panel control and Synapse Setup software.
Standard Standard sets either the PAL, NTSC and SECAM standards.
An Auto detection function is also available. These are the
possible settings:
•Auto
•NTSC-J
•NTSC-M
•PAL-60
•NTSC-443
•PAL-BGHID
•PAL-N
•PAL-M
•PAL-M-setup
•PALcmbN
•PALcmbN-setup
•SECAM
•SECAM-setup
The default setting is AUTO.
Auto-625 Auto-625 sets the Standard setting and determines whether
PAL-BGHI or PAL_N is selected when Standard is set to
Auto. The default setting is PAL-BGHI.
Auto-525 Within the Standard setting Auto-525 determines whether
NTSC_J or NTSC_M is selected when Standard is set to
Auto. The default setting is NTSC_M.
Lock-Mode Lock determines whether the 2AS12 locks onto the input or to
the reference. Input_lock and Ref_lock are the available
options.
The default setting is REF_LOCK.

11
Ref-Input This setting allows the user to determine which reference input is
used to lock the 2AS12. Input 1 is the uppermost input of on the
RRC18 rack controller connection panel at the rear of the SFR18.
1 and 2 are the options.
The SFR04 has only one reference input.
Default setting is 1
Locking input This item lets you decide to which input the card should lock the
outputs of the card. You can choose between input_A ,
input_B or set it to Auto (which is also the default setting). Set
to auto, the card will try to lock to input A. When that is not
possible, it will try to lock to input B.
Input-Loss Input-loss enables the capture of the last video information
when the input signal is lost. Cont_Ana_inp always uses Field
mode. Both a black and green picture output are available.
The settings of Cont_Ana_inp are Black and Green.
The default setting is Black.
H-Delay The H-Delay setting allows adjustment of the horizontal phase
of the output signal with respect to the selected reference input.
The H-Delay setting gives a delay in addition to the reference
timing. For example, if the H_Delay is set to 10 samples, the
output signal will be delayed by the reference timing + 10
samples of 37ns, therefore the delay = Ref timing+ 37ns x10. The
signal is delayed (advanced) with respect to the phase of the
reference signal.
In 625/50 the adjustment range of H_Delay is 0-1727 samples,
0..64 μs (one PAL TV line).
In 525/60 the adjustment range of H_Delay is 0-1715 samples,
0...63.556 μs (one NTSC TV line).
The default setting is 0samples.
The delay of the card is indicated by the tracking pulse on the
RJ45 connector. This can be used, for example, to track an audio
delay.
V-Delay V_Delay setting allows adjustment of the vertical phase of the
output signal with respect to the selected reference input.
The V_Delay setting gives a delay in addition to the reference
timing. For example, if V_Delay is set to 10 TV lines, the output
signal will be delayed by the reference timing + 10 TV lines. The
signal is delayed (advanced) with respect to the phase of the
reference signal.

12
In 625/50 the adjustment range of V_Delay is 0-624 lines (one
TV frame).
In 525/60 the adjustment range is 0-524 lines (one TV frame).
The default setting is 0 lines.
The delay of the card is indicated by the tracking pulse on the
BNC output. This can be used, for example, to track an audio
delay.
Gain-mode Gain-mode determines whether the gain for the composite and
Y_Pr_Pb is MANUAL or AUTO. In AUTO mode an AGC stage is
enabled and the voltage is adjusted automatically, depending on
the sync amplitude. If the sync is less than 300mV, the video
input signal will be amplified with the amount specified as the
300mV sync amplitude. If the sync amplitude is too high the
opposite occurs. In VARIABLE mode the input signal is manually
adjustable.
The default setting is AUTO.
FrzMode Frz-mode gives the option of storing a complete Video Frame
or Field (double written) for the above Freeze Menu and the
external freeze input. The settings of Frz-mode are Field
and Frame. The default setting is Field.
Ext-Frz-Ena Ext-Frz-Ena gives the option of storing a complete Video
Frame or Field (double written) when an external contact is
closed. (needs to be set in the menu item above) For the
connections of the external contact see chapter connections.
The default setting is Disabled
A_VI-Ins The Video Index insertion menu enables the generation of Video
Index information. Video Index is used to trigger cascaded
equipment that process wide screen manipulation, aspect ratio
converters for example.
A_VI-Ins:
The Video Index data insertion re-cognises 16 different modes.
These modes are divided into 2 groups, 4:3 and 16:9, each group
having 8 sub-categories numbered 0-7. Valid data ranges are
4:3_0, 4:3_1, 4:3_2, etc., to 16:9_0, 16:9_1, 16:9_2etc
The default setting is Off
A_Blank-ANC A_Blank-ANC allows to blank ancillary data in the vertical
interval.
V- the vertical dats is blanked

13
Off the vertical data is passed.
Default setting is OFF.
A_Adj-gain This is the adjustment menu for the MANUAL mode as set in the
menu item gain mode.. The adjustable range is from 0.25 to 2.99
insetps of 0.1 The default setting is 1.00
A_Hue The selectable NTSC hue range is from –180 to +180 degrees.
The default setting is 0.
A_Y-shaping Y shaping allows you to select a range of filters:
WN: auto wide notch: this is an auto detect filter that detects
the video standard, and samples the quality of the signal. In
accordance with that sample, a wide notch around the subcarrier
frequency filter is selected.
NN: auto narrow notch: this is an auto detect filter that
detects the video standard, and samples the quality of the signal.
In accordance with that sample, a narrow notch around subcarrier
frequency filter is selected.
S1..S18: These are lowpass filters from 2 MHz (S1) to 8 MHz
(S18).
NN1..3 NTSC: Narrow notch filters for the NTSC subcarrier.
NW1..3 NTSC: Wide notch filters for the NTSC subcarrier.
PN 1..3 PAL: Narrow notch filters for the PAL subcarrier.
PW1..2 PAL: Wide notch filters for the PAL subcarrier.
The default setting is NN.
A_Y-peaking A_Y-Peaking: this filter is to compensate the luma signal
around the subcarrier frequency notation in dB.
Selectable values , + 4.5, +1.25, 0, -1.25, -1.75, -3.dB.
The default setting is 0dB.
A-Freeze A_Freeze enables the capture of one Video Field.
The settings of Freeze are On or Off.
The default setting is OFF.
B_VI-Ins The Video Index insertion menu enables the generation of Video
Index information. Video Index is used to trigger cascaded

14
equipment that process wide screen manipulation, aspect ratio
converters for example.
B_VI-Ins:
The Video Index data insertion recognises 16 different modes.
These modes are divided into 2 groups, 4:3 and 16:9, each group
having 8 sub-categories numbered 0-7. Valid data ranges are
4:3_0, 4:3_1, 4:3_2, etc., to 16:9_0, 16:9_1, 16:9_2etc
The default is Off
B_Blank-ANC B_Blank-ANC allows to blank ancillary data in either the
horizontal or vertical interval or both.
H- the horizontal data is blanked, V- the vertical dats is blanked,
H+V- the horizontal and vertical data is blanked.
Off the horizontal and vertical data is passed.
Default setting is OFF.
B_Adj-gain This is the adjustment menu for the MANUAL mode as set in the
menu item gain mode.. The adjustable range is from 0.25 to 2.99
insteps of 0.1 The default setting is 1.00
B_Hue The selectable NTSC hue range is from –180 to +180 degrees.
The default setting is 0.
B_Y-shaping B_Y shaping allows you to select a range of filters.
WN: auto wide notch: this is an auto detect filter that detects
the video standard, and samples the quality of the signal. In
accordance with that sample, a wide notch around the subcarrier
frequency filter is selected.
NN: auto narrow notch: this is an auto detect filter that
detects the video standard, and samples the quality of the signal.
In accordance with that sample, a narrow notch around subcarrier
frequency filter is selected.
S1..S18: These are lowpass filters from 2 MHz (S1) to 8 MHz
(S18).
NN1..3 NTSC: Narrow notch filters for the NTSC
subcarrier.
NW1..3 NTSC: Wide notch filters for the NTSC subcarrier.
PN 1..3 PAL: Narrow notch filters for the PAL subcarrier.
PW1..2 PAL: Wide notch filters for the PAL subcarrier.
The default setting is NN.

15
B_Y-peaking B_Y-Peaking: this filter is to compensate the luma signal
around the subcarrier frequency notation in dB.
Selectable values, + 4.5, +1.25, 0, -1.25, -1.75, -3.dB.
The default setting is 0dB.
B-Freeze B_Freeze enables the capture of one Video Field.
The settings of Freeze are On or Off.
Default is OFF.

16
6 Status Menu
Introduction The status menu indicates the current status of each item listed
below.
Standard-Det 625 and 525 line standards can be detected as the valid input
signal format – following are recognised as valid inputs:
•NTSC-MJ
•NTSC-443
•PAL-M
•PAL-60
•PAL-BGHID
•SECAM
•PAL-cmbN
•SECAM-525
•No-lock
•Fixed
Reference This status item recognises a valid reference input on the chosen
genlock input.
A_Input This status item indicates what the video signal format is at the
input_A. Possible indications are:
•NTSC-MJ
•NTSC-443
•PAL-M
•PAL-60
•PAL-BGHID
•SECAM
•PAL-cmbN
•SECAM-525
•No-lock
•Fixed
B_Input This status item indicates what the signal format is at the input_B.
•NTSC-MJ
•NTSC-443
•PAL-M
•PAL-60
•PAL-BGHID
•SECAM
•PAL-cmbN
•SECAM-525
•No-lock
•Fixed

17
7Events Menu
Introduction An event is a special message that is generated on the card
asynchronously. This means that it is not the response to a request
to the card, but a spontaneous message.
What is the Goal of
an event? The goal of events is to inform the environment about a changing
condition on the card. A message may be broadcast to mark the
change in status. The message is volatile and cannot be retrieved
from the system after it has been broadcast. There are several
means by which the message can be filtered.
Events The events reported by the 2AS12 are as follows;
Announcements Announcements is not an event. This item is only used for
switching the announcement of status changes on/off. 0=off,
other =on
Ref-Status Reference can be selected between 0 .. 255. 0= no event, 1..255
are the priority setting. If the reference is lost an Event will be
generated at the priority.
Input_A Input_SDI_A can be selected between 0 .. 255. 0= no event,
1..255 are the priority setting. If set to 0no events will be
generated. If the input is lost an Event will be generated at the
priority.
Input_B Input_SDI_B can be selected between 0 .. 255. 0= no event,
1..255 are the priority setting. If set to 0no events will be
generated. If the input is lost an Event will be generated at the
priority.

18
What information is
available in an
event?
The message consists of the following items;
1) A message string to show what has happened in text, for
example: “INP_LOSS”, “REF_LOSS”, “INP_RETURN”.
2) A tag that also shows what happens, but with a predefined
number: e.g. 1 (= loss of input), 2 (= loss of reference), 129(=
1+128 = return of input). For a list of these predefined tags
see the table on the next page.
3) A priority that marks the importance of an event. This value is
defined by the user and can have any value between 1 and
255, or 0 when disabled.
4) A slot number of the source of this event.
The Message String The message string is defined in the card and is therefore fixed. It
may be used in controlling software like Synapse Set-up to show
the event.
The Tag The tag is also defined in the card. The tag has a fixed meaning.
When controlling or monitoring software should make decisions
based on events, it is easier to use the tag instead of interpreting a
string. The first implementation is the tag controlled switch in the
GPI16.
In cases where the event marks a change to fault status (e.g. 1 for
Loss of Input) the complement is marked by the tag increased by
128 (80hex) (e.g. 129 (81hex) for Return of Input).
Defining Tags The tags defined for the 2AS12 are:
Event Menu Item Tag Description
Announcements 0 or NA 0 or NA Announcing of report
and control values
Input 01hex=INP_LOSS 81hex=INP_RETURN primary input lost or
returned
Input 01hex=INP_LOSS 81hex=INP_RETURN primary input lost or
returned
Ref-Status 02hex=REF_LOSS 82hex=REF_RETURN reference lost or
returned