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SDI AUDIO DEMULTIPLEXER
INSTALLATION and OPERATION
© Vistek Electronics Ltd
Filename: V1634OM.DOC
Issue: Rev. B1
Date
February, 05
VISTEK Electronics Ltd
Wessex Rd
Bourne End
Buckinghamshire, SL8 5DT
ENGLAND
Tel.
+44 1628 531221
Fax.
+44 1628 530980
2 March, 2005
V1634/A
V1634/D
V1634OM.DOC
Page 1 of 12
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Table of Contents
Summary of Contents for VISTEK V1634A
- Page 1 V1634/A V1634/D SDI AUDIO DEMULTIPLEXER INSTALLATION and OPERATION © Vistek Electronics Ltd Filename: V1634OM.DOC Issue: Rev. B1 Date February, 05 VISTEK Electronics Ltd Wessex Rd Bourne End Buckinghamshire, SL8 5DT ENGLAND Tel. +44 1628 531221 Fax. +44 1628 530980 2 March, 2005 V1634OM.DOC...
- Page 2 This page is intentionally blank 2 March, 2005 V1634OM.DOC Page 2 of 12...
- Page 3 The V1634A Audio Demultiplexer is a full broadcast specification extractor of audio data from an SDI data stream. It forms part of the Vistek V1600 range of modular interface products. It is a 3U high card which is fitted into either the 1U V1601 or 3U V1603 chassis from which it receives its power.
- Page 4 INSTALLATION REAR PANEL - 3U Two 3U rear panel options are available, depending on the output format. They are shown below: ANALOGUE or AES UNBALANCED D-TYPE AES BALANCED SDI1 SDI1 SDI1 SDI2 SDI2 SDI2 SDI3 SDI3 L/AES AES A AES B L/AES VIDEO VIDEO...
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Page 5: Rear Panel Connections
REAR PANEL CONNECTIONS SIGNAL CONN DESCRIPTION SDI IN SDI Video Input SDI 1, 2, 3 3 off SDI Video Outputs A, B Audio Outputs or Channels A and B Indicate the Positive and Negative of AES signal L/AES The Left channel (analogue) or AES O/P 1 (digital) R/AES The Right channel (analogue) or AES O/P 2 (digital) AES REF... -
Page 6: Power Consumption
POWER CONSUMPTION The power consumption of the V1634A depends on which output module is fitted and is shown in the following table: Base Unit : Base Unit + Analogue I/O Base Unit + Digital I/O INSERTION DELAY The video insertion delay, from D1 I/P to D1 O/P is 495µs. - Page 7 INTERNAL HARDWARE 2.7.1 MAIN BOARD PROM DIL SWITCH SUB-MODULE The significant items on the main board are described here: FS 1 Input power fuse, 3A. SW 1 Internal configuration switches, S1 at the top. See section 0 for details. Note that The PROM that contains the firmware for the programmable device.
- Page 8 SW 1 Set Maximum Output Level (MOL) for channelpair A SW 2 Set Maximum Output Level (MOL) for channelpair B Calibration trim channel AL Calibration trim channel AR Calibration trim channel BL Calibration trim channel BR 2.7.3 DIGITAL O/P MODULE There are no adjustments on the digital O/P module 2 March, 2005 V1634OM.DOC...
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Page 9: Remote Control
Network. If DART is used then any DART controller, with knowledge of the V!634A can be used. Vistek can provide either the V1605 1U control panel or VIEWFIND which is a PC based universal control system. Any DART controller can be used, provided it has ‘knowledge’ on the V1634A. -
Page 10: Standard Indications
AES audio. Unlike many SDI De-multiplexers the V1634A does not require the signals to be synchronous. In fact it is quite possible for the SDI video and the two de-multiplexed audio data streams to have no defined relationship. (The companion V1633A Multiplexer can operate in several modes to enable reliable operation with a variety of de- multiplexers.) -
Page 11: Internal Settings
ANCILLARY BLANKING If the SDI signal from the V1634A is to be used for further processing it may be necessary to remove any data already in the ancillary data space. This can be done by wetting S3 of the internal DIL switch accordingly. - Page 12 DAC OUTPUT MODULE DESCRIPTION The 130-2192 dual DAC output module features 24-bit DACs to accomodate future upgrade to 24 bit embedding in the SDI. Each channel pair - consisting of L and R channels - has digitally controlled MOL which may be adjusted from +12dBu to +24dBu by the on-board hex switches SW1 band SW2.
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