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Switchers



 

 

 

 

 

 

 

 

 

 

 

 

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.

 

AVS-1210     10 x 1 Video Switcher

Features

  • 10 x 1 or two may be linked for 20 x 1 operation.
  • Control system allows linking to audio, SDI and data
  • Supports multiple remote and local control panels.
  • User upgradeable from remote to local control.

General

The AVS-1210 10 x 1 video switcher is a selfcontained, mains powered unit requiring one unit of rack mounting space. It has the capability to switch any one of its ten video inputs to its video output.
The output has two isolated feeds. Selection of the required input is made via a "D" type connector mounted on the rear panel, using a 4 or 5 bit code or optional ground per crosspoint connection.
The switcher can be fitted with a CPS-1210 10 x 1 or a CPS-1220 dual 10 x 1 (20 x 1) Control Panel, or remotely controlled using CPS-1050 10 x 1 or CPS-1052 20 x 1 remote control panels.
Two switchers may be linked to provide 20 x 1 operation using either a CPS-1220 locally or CPS-1052 remotely.

The switchers are housed in an IRT one rack unit (44 mm high) 483 mm (19 inch) metal chassis. The input and output circuit connections are by means of BNC connectors, accessible from the rear panel of the unit.
Control/tally connections to the switch data buss are made to a pair of 25 pin "D" connectors on the rear panel.
An internal AC mains powered regulated power supply provides the operating voltages for the switcher circuitry. A selector on the rear panel allows matching to local mains supply voltages.

 

AVS-3011    Analogue Video Switcher

Features
  • 5 x 1 analogue video with looping inputs.
  • 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 AVS-3011 analogue video 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 AVS-3011 supersedes the AVS-3010 and provides all of its predecessors 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 10x1, 15x1 or 20x1 operation.
The switcher may be slaved to operate in conjunction with other 3000 series switchers for analogue audio, digital video 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, 1 RU 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.

AVS-3170   Video, Data & IF 5 x 1 Relay Switcher

Features
  • Suitable for video, SDI, ASI, RF, ACS or high speed digital signals.
  • May be used for G.703 MPEG transport streams.
  • Economical switcher for 2, 8, 34 & 45 Mb/s data signals.
  • Termination impedance may be easily changed from 75Ω to 50Ω or open circuit.
  • Default path from source 1 on power fail.
  • Compatible with 3000 series switchers or wire per crosspoint control.

General

The AVS-3170 5 x 1 relay switcher for video and RF is a passive unbalanced circuit relay switcher.
The relays used are low capacitance reed relays wired to minimise crosstalk from the unused inputs and thus allow the switcher to be used with RF or video signals exceeding 140 MHz.
This also allows the switcher to be used for highspeed digital signals with minimal effect on the pulse risetime.
When used at very high data rates the small amount of high frequency attenuation may be corrected by following the switcher with a data distribution amplifier. This not only provides automatic equalisation, but also source isolation and multiple outputs.
Termination resistors for 75Ω signals are fitted as standard. These may be easily changed to 50Ω for RF signals or removed for switching TTL or other signals.

When the switcher is not powered, relay 1 circuit switches input 1 to the output thus providing a secure path during power failures.
The AVS-3170 5 x 1 relay switcher is designed to interface with other IRT Eurocard 3000 series switchers or with the VG-737 video and AG-738 audio program fail detectors.
The switcher may be fitted with a local control panel, type CPS-3050, or with a tally panel, type TPS-3010, for local path indication when the switcher is operated remotely.
The AVS-3170 is built to the IRT Eurocard format and may be mounted in any of IRT's standard Eurocard frames together with other Eurocard modules.

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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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AMS-4370HD  HD, G.703, ASI, SDI, Video 4 Port Changeover Relay

Features

 

  • Signal path suitable for HD (1.4Gb/s), SDI , analogue
    video, ASI data streams and G703 signals @ 2, 8, 34, 45,
    144 Mb/s.
  • Momentary Set/Reset or HI/LO logic control.
  • No path change on power fail.
  • Local or remote control.
  • Front panel LED status indicators

General

The AMS-4370HD is a magnetic latching 4 port changeover switcher using enhanced performance relays which provide switching capabilities for high speed data signals up to 1.4 Gb/s. It is suitable for switching high definition video, ASI, SDI or G.703 data streams or analogue video signals, provided that they have characteristic impedances of 75Ω.
The AMS-4370HD is arranged as a changeover switch 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 magnetic latching characteristic of the high performance relay allows momentary control and also provides for no change of path during power loss. Remote changeoverchangeover is by a momentary ground connection.The AMS-4370HD is ideally suited to applications where a simple choice between two inputs or outputs is required and may be easily driven by detector circuits for automatic path selection.
For best performance the outputs should be connected to inputs with automatic cable equalisation.
Remote indication of tally and local/remote status is provided for integration into central alarm and monitoring systems.
The AMS-4370HD relay card is built to the Eurocard format and will mount in an IRT 1RU or 4000 series 3RU frame.          

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