Audio Interfaces - Redbox - Video Embedder
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RB-VHEMA8 3G/HD/SD-SDI Embedder, 8 Channel Analogue Inputs.
RB-VHEMA8 3G/HD/SD-SDI Embedder, 8 Channel Analogue Inputs
The RB-VHEMA8 is an 8 channel analogue embedder contained in a single 19-inch rack unit. The unit can selectively embed up to 8 analogue channels onto either of the two output video paths which are sent to the re-clocked SDI outputs. It also has the capability to allow audio groups to be deleted or passed through on each of the two video paths prior to the embedding process.
The embedding channel routing is controlled via the front panel buttons and indicators. There is also LED indication for SDI input status and audio group presence.
The unit can be remote controlled via Ethernet or serial port connections using the Sonifex SCi software.
It has a triple rate SDI receiver with automatic input rate detection and equalisation along with two re-clocked and individually buffered SDI outputs. It supports the full range of 3G, SD and HD standards from NTSC and PAL up to 1080p 60Hz.
There is independent level control for each analogue input channel, which can be adjusted from -24dB through to +24dB in 0.5dB steps. The analogue inputs have three full-scale gain settings which can be set via jumpers situated inside the unit. Allowable settings are +12dBu, +18dBu and +24dBu for FSD. The balanced and unbalanced input connections are paralleled, allowing one type to be used per input.
Block Diagram For RB-VHEMA8.
This product has settings that can be adjusted using the Sonifex SCi (Serial Control Interface) software. To download a copy of the SCi software, please use this link >
Technical Specification For RB-VHEMA8 |
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Front Panel Controls & Indicators |
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| Embed Bank Select: | Bank 1 or 2 |
| Bank Channel Select: | Channels 1, 2, 3 or 4 |
| Group Select: | Groups 1, 2, 3 or 4 |
| Group Channel Select: | Group channels 1,2,3 or 4 |
| Status: | 1 x SDI input status LED 2 x SDI output LEDs 4 x Audio group status LEDs |
Audio Specifications |
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| Maximum Input Level: | +27dBu (balanced) |
| Input Impedance: | >10kΩ bridging (balanced) |
| Input Levels: | +12dBu, +18dBu or +24dBu for FSD (jumper selectable) |
| Signal to Noise: | Better than -113dBFS (RMS A-weighted at 24-bit, balanced) |
| Distortion and Noise: | Better than -100dB THD+N at 1kHz (balanced) |
Connections |
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| Analogue Audio Inputs: | 8 input channels via BNC (unbalanced) or D-type socket (balanced) |
| Analogue Audio Connectors: | 8 x BNC 2 x 25-way D-type |
| Power Supply: | Universal filtered IEC, continuously rated 85-264VAC @47-63Hz, fused, max 18W |
Equipment Type |
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| B-VHEMA8 | 3G/HD/SD-SDI embedder, 8 channel analogue inputs |
Common Specifications For RB-VHEMA8, RB-VHDMA8, |
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SDI Specification |
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| SDI Input: | 1 x BNC, 3G/HD/SD-SDI |
| SDI Outputs: | 2 x BNC, 3G/HD/SD-SDI, Re-clocked |
| Impedance: | 75Ω |
| Output Alignment Jitter: | <0.2UI (3G <0.3UI) |
| Output Level: | 800mV +/- 10% |
| Return Loss: | <15dB at 1500MHz |
| SDI Supported Standards: | 270Mbps, SMPTE-259M-C (SD) 1.485 or 1.4835Gbps, SMPTE-292M (HD) 2.97 or 2.967Gbps, SMPTE-424M (3G) |
| Supported Video Formats: | 525/59.94 (SMPTE-125M 625/50 (ITU-R BT.656) 720p/23.98, 24, 25, 29.97, 30, 50, 59.94, 60 (SMPTE-296M) 1035i/59.94, 60 (SMPTE-260M) 1080i/50, 59.94, 60 (SMPTE-274M) 1080p/23.98, 24, 25, 50, 59.94, 60 (SMPTE-274M) 1080pSF/23.98, 24, 25, 29.97, 30 (RP-211) 1080i/50 (SMPTE-295M)1080p/50 (SMPTE-295M) |
| Embedded Audio: | 48kHz, synchronous SMPTE-272M-ABC SMPTE-299M |
| Serial Port: | RS232, 9 way D-type |
| Ethernet Port: | 10/100Mbps |
| Fuse Rating: | Anti-surge fuse 1A 20 x 5mm |
Physical Specifications |
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| Dimensions (Raw): | 48cm (W) x 15.8cm (D*) x 4.2cm (H) (1U) 19” (W) x 6.2” (D*) x 1.7” (H) (1U) |
| Dimensions (Boxed): | 59cm (W) x 27.5cm (D) x 11cm (H) 23.2” (W) x 10.8” (D) x 4.3” (H) |
| Weight: | Nett: 1.8kg Gross: 2.3kg Nett: 4.0lb Gross: 5.1lb |
| * Note that this product is deeper than standard Redboxes | |
