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Snell & Wilcox ARC130S Operator's Manual

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Aspect Ratio Converter
© August 2001
Snell & Wilcox Ltd, Durford Mill, Petersfield, Hampshire, GU31 5AZ, United Kingdom.
Tel: +44(0) 1730 821188. Fax: +44(0) 1730 821199.
ARC130S 060801 Version 1 Issue 1
A R C 1 3 0 S
Operator's
Manual
0.1

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  • Page 1 A R C 1 3 0 S Aspect Ratio Converter Operator’s Manual © August 2001 Snell & Wilcox Ltd, Durford Mill, Petersfield, Hampshire, GU31 5AZ, United Kingdom. Tel: +44(0) 1730 821188. Fax: +44(0) 1730 821199. ARC130S 060801 Version 1 Issue 1...

  • Page 2: Safety Warnings

    No part of this publication may be transmitted or reproduced in any form or by any means, electronic or mechanical, including photocopy, recording or any information storage and retrieval system, without permission being granted, in writing, by the publishers or their authorised agents. ARC130S 060801 Version 1 Issue 1...

  • Page 3: Safety Standards

    Belden 8281 or BBC type PSF1/2M. D-TYPE CONNECTORS D-type connectors shall have metal shells making good RF contact with the cable screen. Connectors having "dimples" which improve the contact between the plug and socket shells, are recommended. ARC130S 060801 Version 1 Issue 1...

  • Page 4: About This Manual

    This manual covers the following product: • ARC130S with 8 GPI inputs (via 2 x 9 way D connectors) and 8 GPI outputs via a 25 way D connector Packing List The unit is supplied in a dedicated packing carton provided by the manufacturer and should not be accepted if delivered in inferior or unauthorised materials.

  • Page 5: Table Of Contents

    Operation via a Kudos Active Front Panel Protocol ........................4.53 RollCall Menu System Drawing................4.54 Menu Details ......................4.55 Section 5 System Overview ......................5.1 Block Diagram Description....................5.2 Section 6 Aspect Ratio Technical Codes for Video and Picture Sources ARC130S 060801 Version 1 Issue 1...
  • Page 6 ARC130S SECTION 0 Manual Revision Record Date Version No. Issue No. Change Comments 060801 First issue of manual ARC130S 060801 Version 1 Issue 1...

  • Page 7: Introduction

    The user ratios can be stored in twelve memories and are quickly The ARC130S is a compact 1RU high unit for pushbutton selected when required for use. location on the desktop or in a 19-in. rack. It will operate in 525 and 625 line systems.

  • Page 8: Specification

    ARC130S SECTION 2 Specifications Features Specifications Signal Inputs Input Standard 525/625 line Serial Input Return better than 15 dB to 270 MHz Serial Digital 1 Serial D1 525 or 625 via BNC Loss loop-through connectors Serial Output Return better than 15 dB to 270 MHz...

  • Page 9: Installation

    If the unit is to be rack mounted, first open the front added. panel by lifting up the the two levers at right and left of the panel, hinge the panel down and ARC130S 060801 Version 1 Issue 1...

  • Page 10: Rear Panel Connections

    M M M M o o o o d d d d e e e e l l l l : : : : A A A A R R R R C C C C ARC130S 060801 Version 1 Issue 1...
  • Page 11 ARC. It can be connected to a Snell and Wilcox audio delay module to automatically set a compensating audio delay. If the ARC130S is put into Bypass mode or, field pairing mode, then the nominal delay remains at four fields. However because the unit acts as a...
  • Page 12 Rec Sig Common Spare Trans Sig Common Transmit + Remote ARC çRemote Receive – Ground The Baud Rate is 38.4Kbs, half duplex. Format is 1 start bit, 7 data bits, 1 parity bit, 1 stop bit. ARC130S 060801 Version 1 Issue 1...
  • Page 13 PC software please consult their relevant manuals. e.g. Shoebox operator’s manual. For specific information about the RollCall menu system for the ARC130S see Section 4, Operation, RollCall Menu System on page 4.34 ARC130S 060801 Version 1 Issue 1...
  • Page 14 Pin 5 GPI 7 signal Maximum Load current 1.0 A (AC/DC) Pin 9 GPI 7 return Maximum On-State 500 mOhm Pin 1 ground. Resistance @ Tamb =+25°C Minimum Off-State 100 MOhm Resistance @Tamb =+25°C,V=±48V ARC130S 060801 Version 1 Issue 1...
  • Page 15 If a non-binary GPI memory is being used all 8 contacts will be open. GPI interface Delay The GPI interface on the ARC130S has a delay that matches the video processing delay through the ARC. This means that if a given input-video field is desired to produce the first output-field built with a new aspect ratio conversion;...

  • Page 16: Arc Configuration Loader Program

    ARC130S SECTION 3 Installation Included with ARC130S software version A32 are 2 floppy disks containing software for up and down loading ARC configurations to a PC. ARC Configuration Loader Program ARC Configuration Loader Installation downloading uploading The distribution of the ARC Configuration Loader includes a setup.exe program file.
  • Page 17 The following Menu selections are available to operators of the ARC Configuration Loader: 1. File: Exit Ends the ARC Configuration Loader Program. 2. Help: About Provides Information about the ARC Configuration Loader including version data ARC130S 060801 Version 1 Issue 1...

  • Page 18: Switching On

    If when the power is turned ON the power indicator is RED and the card edge alpha-numeric display on the active front panel displays FAN FAIL message, the unit should be turned OFF as this indicates a failure of the cooling fan which is located behind the power switch panel. ARC130S 060801 Version 1 Issue 1 3.10...

  • Page 19: Switch Controls (Blank Front Panel)

    Pressing ENT and ESC simultaneously will return you to the Home Display. Home Display TOP MENU Audio Each of the items on the menu is described Blank (Blanking) separately. Display Genlock Auto Memory Setup VITS ARC130S 060801 Version 1 Issue 1...

  • Page 20: Audio

    On (audio data from selected input Group 2 group), Mute (silence) or Test Tone. Group 3 An audio buffer compensates for the video delay. Group 4 O/P Grp Group 1 Group 2 Group 3 Group 4 ARC130S 060801 Version 1 Issue 1...

  • Page 21: Blanking

    The ARC130S will then blank any output data which has been generated by that input data, regardless of the display control settings.

  • Page 22: Display

    4:3>FW: 4:3 to 16:9 full width conversion, i.e. top and bottom of picture lost at the output. 1.77L>F: 16:9 letterbox to 16:9 anamorphic conversion. See next page for descriptions of the nomenclature used for the above aspect ratio conversions. ARC130S 060801 Version 1 Issue 1...
  • Page 23 16:9 letterbox in 4:3 converted to 16:9 0.750 1.333 anamorphic full height image * For a detailed explanation of the these code specifications please refer to Section 6 “Aspect Ratio Technical Codes for Video and Picture Sources” ARC130S 060801 Version 1 Issue 1...
  • Page 24 The product of SIZ and ASP is limited to the range 0.50 to 2.00, and SIZ is limited to the range 0.50 to 2.00. Note that this option does not appear if H only processing is selected. (see set-up menu page 4.11) ARC130S 060801 Version 1 Issue 1...
  • Page 25 From the Home Screen, press ENT and scroll to Genlock. Press ENT and scroll between H Time and V Time. Press ENT on the selected function. The ARC130S will always lock to the incoming video. H Time allows you to adjust the horizontal Genlock timing with respect to the reference, in pixels.

  • Page 26: Gpi

    GPI to it. GPI 2..GPI 15. By default GPI’s 0 to 7 recall user memories 1 to 8 respectively. You can then store the GPI memory settings for the indicated binary GPI memory. ARC130S 060801 Version 1 Issue 1...
  • Page 27 ARC130S SECTION 4 AUTO This allows the user to control the action of the ARC130S in the presence of an incoming Line 23 aspect ratio or video index signal. From the Home Screen, press ENT and scroll to Auto. Input...
  • Page 28 AUTO aspect ratio control signal. Forced The ARC130S does not use the stored values but uses the values visible on the menus (see below). Line 23 Set...
  • Page 29 Note – if you wish to pass VI data from the input of the ARC130S to the output then it is necessary to set the vertical interval lines containing the VI data to be not blanked. Otherwise, the input VI information is lost.
  • Page 30 Sub_Img The ARC 130S will automatically provide the output signalling from the input signalling if Auto is selected. Alternatively, it can be set to “None”, Inside Image active or Outside Image active. ARC130S 060801 Version 1 Issue 1 4.12...

  • Page 31: Afd Dat

    Mode is set to FORCED. See Output Setup\Mode above. Note that AFD value 4 is specified as reserved but, it is provided here in case it is allocated a meaning at some future time. ARC130S 060801 Version 1 Issue 1 4.13...
  • Page 32 ARC130S SECTION 4 ETSI PG This allows the user to program the ARC130S action in when it receives the stated incoming line 23 (ETSI) signal. Select ETSI PG and select from the list the line 23 signal that you want to activate the selected display.

  • Page 33: Memory

    Auto GPI Binary line 23 AFD input was selected and, that particular input was selected and, that particular Binary GPI widescreen signal was present on the input video. value was present on the GPI input. ARC130S 060801 Version 1 Issue 1 4.15...

  • Page 34: Setup

    When On it ensures that the colour values are legal. Ip Loss controls the response to the loss of the input video. Black: the ARC130S output cuts to black when the input is lost Freeze: the ARC130S output freezes when the input is lost Ip Std allows you to select the incoming video standard.
  • Page 35 If the material has all cuts on field 2’s then selecting Pair As 2-1 will ensure that there is no interpolation across cuts. ARC130S 060801 Version 1 Issue 1 4.17...
  • Page 36 DVE moves or scrolling captions) a single field aperture may be preferred. Process Selects the filtering applied in the ARC130S . V & H: This is the normal operating mode. Both vertical and horizontal size and position control is available.
  • Page 37 S-Curve In S-Curve mode the ARC starts the transition slowly, then increases the rate of change then reduces the rate of change at the end of the transition. ARC130S 060801 Version 1 Issue 1 4.19...
  • Page 38 This is significant if line 23 signalling is used (this signal is only present once per frame). If the RC Add ARC130S is in the Auto mode and line 23 signalling is set to Auto output, when a change in Log On/Log Off...

  • Page 39: Vits

    VITS. Press ENT and scroll to select the function you require. Then press ENT again. PassAll passes all the VITS lines through the ARC130S untouched. When selected and ENT is pressed, the message “Done” appears. BlankAll blanks all the VITS lines. When selected and ENT is pressed, the message “Done”...
  • Page 40 Anamorphic presentation - that is the image is designed to be displayed distorted. This can be as a result of stretching a picture to fit a given display shape whilst avoiding cropping. ARC130S 060801 Version 1 Issue 1 4.22...
  • Page 41 If the aspect ratio is expressed as: - A : B (width to height) Then the two digit number N representing the comparison ratio against a height of 9 will be given or by transposing ARC130S 060801 Version 1 Issue 1 4.23...
  • Page 42 Full Description Size Value Designation Value 1.85L>FH 1.85:1 Letterbox picture to full height 4:3 1.000 1.388 picture with left hand and right hand edges of original 1.85:1 image cropped Input Picture Output Picture ARC130S 060801 Version 1 Issue 1 4.24...
  • Page 43 Size Value Designation Value 1.55L>FH 14L12 > 12F12 14:9 letterbox picture to full height 4:3 picture 1.000 1.167 with left hand and right hand edges of original 14:9 image cropped Input Picture Output Picture ARC130S 060801 Version 1 Issue 1 4.25...
  • Page 44 BBC Notation Full Description Size Value Designation Value 1.85F>LB 1.85:1 Anamorphic picture converted to 1.85:1 1.388 0.721 letterbox picture for presentation on 4:3 screen (black bars above and below image) Input Picture Output Picture ARC130S 060801 Version 1 Issue 1 4.26...
  • Page 45 16:9 Anamorphic picture converted to 14:9 1.333 0.857 letterbox picture for presentation on a 4:3 screen (black bars above and below image and right hand and left hand edges of picture slightly cropped) Input Picture Output Picture ARC130S 060801 Version 1 Issue 1 4.27...
  • Page 46 14:9 letterbox picture in 4:3 converted to 14:9 0.750 1.167 pillar-box/curtains image in 16:9 anamorphic (14:9 horizontally squeezed image with 1:9 black bars to left and right of output) Input Picture Output Picture ARC130S 060801 Version 1 Issue 1 4.28...
  • Page 47 Output Picture Front panel Aspect BBC Notation Full Description Size Value Designation Value 1.77L>1.77F 16L12 > 16F16 16:9 letterbox in 4:3 converted to 16:9 0.750 1.333 anamorphic full height image Input Picture Output Picture ARC130S 060801 Version 1 Issue 1 4.29...

  • Page 48: Appendix - Video Index And Enhanced Line 23

    APPENDIX – Video Index and Enhanced Line 23 The ARC130S can read incoming video index signals and output it’s own video index signal. Video index is a signal embedded in the D1 output stream that can be used to convey aspect ratio information. The basic version of video index is described in SMPTE document RP186.
  • Page 49 ARC130S SECTION 4 The ARC130S can read incoming aspect ratio signalling and output it. This means that the aspect ratio conversion it performs can be automatically controlled by the incoming video signalling. It is possible to program the action that the ARC takes for each of the incoming signalling values. The parameters that are stored when the signalling is programmed are as follows: 1.

  • Page 50: Protocol

    SECTION 4 PROTOCOL The ARC130S software supports a second RS 422 remote control protocol. This has been done so that the ARC can be controlled by Philips automation systems that are unable to support the full command set of the Snell &...
  • Page 51 ARC130S SECTION 4 ARC130S 060801 Version 1 Issue 1 4.33...

  • Page 52: Setup

    ARC130S SECTION 4 THE ROLLCALL MENU SYSTEM (See `ARC130S Menu System' drawing on The highest level menu is called the Main Menu previous page) and contains the names of the lower-level menus that may be scrolled through using the spinwheel.

  • Page 53: System Overview

    ARC130S SECTION 5 System Overview The ARC130S is a digital-in digital-out Aspect ratio Converter. To change the aspect ratio, the picture has to be stretched or compressed in either or both the horizontal and vertical plane. To stretch or compress the picture, data has to be interpolated from adjacent pixels.

  • Page 54: Block Diagram Description

    If the GPI interface option is fitted, an input on one of the four lines can be used to select a memorised Referring to the block diagram (drawing ARC130S output format and automatically set the output ), the OPI card decodes the D1 serial digital video aspect ratio.

  • Page 55: Aspect Ratio Technical Codes For Video And Picture Sources

    Note: Letter A has been proposed for material converted an Anamorphic presentation - that is the image is designed to be displayed distorted. This can be as a result of stretching a picture to fit a given display shape whilst avoiding cropping. ARC130S 060801 Version 1 Issue 1...
  • Page 56 A full frame 16:9 TX tape Centre Cut-out protected for cropping and conversion to a 4:3 format such as 12L12 the standard 4:3 PAL format - 12L12. 12F12N 14L12N 12F12N (12:9) 4:3 standard aspect ratio full height pictures. Standard PAL. ARC130S 060801 Version 1 Issue 1...
  • Page 57 Addition of extra examples and figures. Addition of protection code D Changes from ver. 3.0: End of document Source of Document: Aspect Ratio Technical Codes for Video and Picture Sources. Proposal 3.1 Bill Bulford BBC PP&GD R&D 7/09/98 wcode31.doc ARC130S 060801 Version 1 Issue 1...
  • Page 58 Anamorphic presentation - that is the image is designed to be displayed distorted. This can be as a result of stretching a picture to fit a given display shape whilst avoiding cropping. ARC130S 060801 Version 1 Issue 1...
  • Page 59 If the aspect ratio is expressed as: - A : B (width to height) Then the two digit number N representing the comparison ratio against a height of 9 will be given or by transposing ARC130S 060801 Version 1 Issue 1...

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