No Longer Available - For Reference Purposes Only
  

CDC-3062:   Priority Switch Controller.

FEATURES:

      Automatic operation.
      Selection of main / reserve / standby priority.
      Local / remote control of all functions.
      Remote and local status information.
      Audio fail override facility using IRT AG 738 / AAD 4130 audio detector.
      May be used for audio only applications.

Brochure  

User Manual  

FRONT PANEL INDICATORS AND CONTROLS:

      Fail LED's on the main, reserve and standby paths.
      Indication of the priority source selected.
      Indication of the ON AIR source.
      Auto/manual enable indication.
      Push buttons for priority selection of sources in auto mode and direct selection of
         manual mode.

GENERAL:

The CDC-3062 is a video presence detector which also provides logic and switching control circuitry for interfacing to IRT 700, 3000 & 4000 series video and audio switchers.

The main use for the controller is to provide control of transmission link paths and to provide alarm and status information to centralised monitoring facilities.

The video signals of the main, reserve and standby paths are monitored, with an indication provided to show the loss of the input signal.

Any of the main, reserve or standby paths can be selected as the priority path and, provided a signal is present, this selection will be the ON AIR source.

If the priority selected path should fail the unit will provide control signals to select another input.

Where a failure occurs on main, reserve and standby inputs then the system will select the local input.

Once any input signal is restored the system will switch back from the local signal to an input signal, with the priority selected input having precedence when more than one input signal is available.


TECHNICAL SPECIFICATIONS:

Inputs:
Video:
Type
3 x loop through.
Connector
 BNC

Extended Failure:
Type
3 x opto isolated failure override.

Control:
Type
5 bit BCD coded parallel TTL level.
Number
1 "input" & 1 "output"
Connectors
Plug in 10 pin dual IDC.

Manual override:
Type
1 x opto isolated manual / auto toggle.

Outputs:
IRT 3000 series interface
As above.
IRT 700 series interface
TTL level.

Alarm Tallies:
Function
Auto mode enabled.
Main present.
Reserve present.
Standby present.
Main has priority.
Reserve has priority.
Standby has priority.
* Main tally.
* Reserve tally.
* Standby tally.
* Local tally.
* Not available when using 700 series switchers.
Type
TTL level, or
Open collector transistor 100 mA @ 30 Volts.

Power Requirements:
Voltage
28 Vac CT (14-0-14) or ±16 Vdc.
Power consumption
< 3 VA.

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.



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