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Switchers



 

 

 

 

 

 

 

 

 

 

 

 

Switchers

Analogue Audio

AMS-1000   10x1 Video and Audio Passive Switcher
AAS-3021   5x1 Stereo Audio Switcher
AMS-4171   Relay Changeover Switcher Video/SDI +2 Audio

AMS-1000  10 x 1 Video + Audio Passive Switcher

Applications:

  • Monitoring of slave machines in dubbing suites

  • Patchbay replacement

Features:

  • 10 input video & audio switching in one unit

  • Balanced single channel or unbalanced stereo audio

  • Simple passive switching

  • Self indicating pushbuttons

General

The AMS-1000 is a passive 10 x 1 video and audio switcher intended for use in non-critical switching and monitoring applications.
Inputs are selected by switches, which are mechanically interlocked. A white flag indicator clearly shows the selected switch from a distance without the need for power.
Video: All non-selected video sources are terminated in 75 Ω. The selected video input is switched through to the output and must be terminated at the destination.
Audio: The audio consists of two identical circuits for each switch position. These may be designated as a pair for balanced operation or as Left and Right channels for unbalanced stereo operation.

All audio lines are loaded with 10 kΩ at the input. The selected pair are connected to the output connector and the total loading will be that of the destination in parallel with the switcher loading.
The switcher is housed in an IRT one rack unit (480 x 230 x 44 mm), 19" rack mounting chassis with video connections via BNC connectors and audio via plug in terminal blocks.

 

AAS-3021    Analogue Audio Switcher

Features

  • 5 x 1 Stereo on one Eurocard.
  • May be cascaded to 20 x 1.
  • Local or remote control options.
  • Universal wire per crosspoint or binary coded remote control.
  • Compatible with other 3000 series analogue & digital switchers.
  • May be mounted in same frame as other IRT Eurocards. including VDA’s, ADA’s, detectors and processors.

    General

    The AAS-3021 stereo audio switcher is part of a family of "smart" switchers in Eurocard format that may be linked and configured by the user to cover a wide range of switching and monitoring functions.
    The AAS-3021 supersedes the AAS-3020 and provides all of its predecessor's functions together with added static protection and user configurable grounding wire per crosspoint remote control.
    On board links allow several switchers to be joined for 10 x1, 15 x 1 or 20 x 1 operation.
    The switcher may be slaved to operate in conjunction with similar switchers for analogue and digital video, audio and RS422 or similar control signals.
    This makes the switchers ideally suited to situations where a mixture of analogue and digital signals is present.

    The CPS-3050 local control switch panel kit converts the switcher for stand-alone operation.The CPS-9001 provides a 5 button remote control in a panel the same size as the CPS-3050.The CPS-1050 and 1052 1RU remote control panels allow formation of 10x1, 15x1 or 20x1 combinations.

    All panels have tally LED's and switch label inserts. Multiple panels may be used with tally to each panel.
    A complete video plus stereo audio switcher can be assembled from just two modules and can be accommodated in a single rack unit frame.

     
 

AMS-4171 Relay Video & Audio Switch

Applications:
  • One video and two balanced audio changeover switches in one package
  • Video path suitable for HDSDI (1.485Gb/s), SDI (270 Mb/s), analogue video, ASI data streams and G.703 @ 2, 8, 34, 45, 144, 155 Mb/s
  • Audio path suitable for 2 balanced, or 4 unbalanced, audio or data signals
  • Married or independent operation
  • Default path on power fail
  • Local or remote control
  • Optional plug-in SNMP monitoring and control module
  • Front panel LED status indicators

General

The AMS-4171 consists of one "video" and two "balanced audio" switches. Each switch is arranged as a changeover set with two inputs and two outputs. No terminations are provided on the board allowing the switcher to be used in a wide variety of applications and with signals of various types and impedances.
The "video" path uses enhanced performance relays to provide switching capabilities for high-speed data signals up to 1.485 Gb/s and may be used with analogue video, SDI, HDSDI, ASI or G.703 data signals.
The "audio" path may be used for balanced or unbalanced audio or control signals (RS232, RS422, RS485 etc).
The AMS-4171 is ideally suited to applications where a simple choice between two inputs or outputs is required and may be easily driven by audio, video or other detector circuits for automatic path selection

Front panel switches allow a choice of local or remote control operation.
Front panel LED indicators are used to indicate the status of each relay circuit.
Remote control is via a switch to ground connection, where video and audio may be operated independently or with audio following video by means of link settings.
An optional SNMP (Simple Network Management Protocol) plug-in module is available for remote monitoring and control when used in conjunction with IRT's 4000 series frame fitted with SNMP capability.
The AMS-4171 is designed to fit IRT's standard Eurocard frames as well as IRT's 4000 series frame for use with IRT's SNMP system and may be used alongside any other of IRT's analogue or digital Eurocards.

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