- Digital Signal Reclocking
- Transformer Isolated AES/EBU Input and Outputs
- Exclusive Sure-Lok™ Auto-Recovery Sentinel
- Operation Up to 24 bits, 192 kHz
- Format Conversion for Selected Output Format
- Each Output: AES/EBU, S/PDIF or AES-3ID
- Input: AES/EBU, Coaxial or Optical S/PDIF, AES-3ID
- 1 x 4 Digital Audio Distribution for All Formats
- Sample Rate Indicator
- Digital Signal Lock Indicator for Each Input Format
The HR-DDA4 is the ideal choice in installations requiring high quality distribution of a digital audio signal. The input and each of the four outputs support AES/EBU, S/PDIF or AES-3ID formats. The HR-DDA4 automatically detects a valid input on any of the four input jacks: S/PDIF optical, S/PDIF coaxial, AES-3ID or AES/EBU. The input is decoded, reclocked and retransmitted to four individually buffered outputs. Front-panel LEDs display the digital audio format and sample rate of a valid source received without any phase-lock or bit errors. Each output is switch-selectable to provide an AES/EBU, S/PDIF coaxial or AES-3ID output. The switch enables the appropriate output jack and any required electrical and data format conversion. The AES/EBU input and outputs are 110 Ω terminated; the S/PDIF coaxial and AES-3ID jacks are 75 Ω terminated. The HR-DDA4 is powered from 24 Vdc, which may be connected through the detachable terminal block or through the dc power jack. A front-panel power switch is provided. RDL’s proprietary Sure-Lok auto recovery supervision monitors possible causes of latch-up and reinitiates digital signal lock, bringing a high level of stability to digital audio signal distribution under the variety of conditions encountered in professional environments. | Inputs (4): | 110 Ω AES/EBU XLR, transformer isolated;
S/PDIF optical; 75 Ω S/PDIF coaxial phono jack; 75 Ω AES-3ID BNC | | Outputs (12): | 110 Ω AES/EBU XLR (4), transformer isolated;
75 Ω S/PDIF coaxial phono jack (4);
75 Ω AES-3ID BNC (4) | | Selector (4): | Rear-panel output format selector (1 per output) | | Sample Rate: | 32 kHz to 192 kHz | | Resolution: | 16 to 24 bits | | Indicators (12): | POWER LED; INPUT FORMAT LEDs (2); Sample Rate LEDs (9) | | Standards: | AES3-2003, IEC60958 | | Power Requirement: | GROUND-REFERENCED
24 to 33 Vdc @ 50 mA | | Ambient Operating Environment: | 0° C to 50° C |
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