No Longer Available - For Reference Purposes Only
     

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.

Brochure  

User Manual  

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.

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, 1 RU remote control panels allow formation of 10 x 1, 15 x 1 or 20 x 1 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.


TECHNICAL SPECIFICATIONS:

Audio Inputs:
Type
 Tranformerless, bridging AC coupled.
Number
5 x 2 (5 stereo).
Impedance
> 10 kΩ.
Maximum Input Level
 +24 dBu.
Input CMR
 > 40 dB @ 55 Hz.

Audio Outputs:
Type
Transformerless, balanced DC coupled.
Number
1 x 2 (left and right).
Impedance
< 44 Ω.
Maximum Output Level
+24 dBu into 600 Ω.
DC on Output
< ±20 mV.

Control Inputs/Outputs:
Type
5 bit TTL coded parallel ECL level; or
Individual grounding contacts.
Number
1 input & 1 output.

Performance:
Gain
±3 dB (adjustable by internal preset).
Frequency Response
±0.5 dB for 20 Hz to 20 kHz.
Harmonic Distortion
< 0.01% 20 Hz to 20 kHz at +20 dBu output.
Noise
-90 dB, Ref. +20 dBu 20 Hz to 20 kHz.
Crosstalk Left/Right
-70 dB @ 15 kHz with measured input terminated.
Phase Left/Right
±0.2° to 20 kHz.


Power Requirements:
Voltage
28 Vac CT (14-0-14) or ±16 Vdc.
Power consumption
< 8VA (+ 24 dBu, outputs loaded in 600 Ω).

Connectors:
Audio
Plugable screw block connectors.
Control
Plug in 10 pin dual IDC.

Other:
Temperature range
0 - 50°C ambient.
Mechanical
Suitable for mounting in IRT 19" rack chassis with input, output and power connections on the rear panel.
Finish:             Front panel
Grey background, black lettering & red IRT logo.
                       Rear assembly
Detachable silk-screened PCB with direct mount connectors to Eurocard and external signals.
Dimensions
6 HP x 3 U x 220 mm IRT Eurocard.

Supplied accessories
Rear connector assembly including matching connectors for audio and control inputs & outputs.

Optional accessories
CPS-3050 local control conversion with 5 pushbuttons & tally LED's.
CPS-9001 remote control panel with 5 pushbuttons & tally LED's.



               



Due to our policy of continuing development, these specifications are subject to change without notice.