7721AE4-HD & 7721AE4-B-HD
HD-SDI 4 AES Unbalanced/Balanced Audio Embedder
The 7721AE4-HD Audio Embedder inserts AES audio signals into a 1.5Gb/s HD video signal as specified in SMPTE 299M. The companion 7721AD4-HD Audio Deembedder facilitates audio demultiplexing at the destination.
SMPTE 299M allocates four groups of four audio channels that can be embedded into the SMPTE 292M bitstream. The 7721AE4-HD embeds up to 4 AES audio pairs into two groups on the HD-SDI outputs for discrete 5.1 audio applications. The 7721AE4-HD is Dolby E compliant when the sample rate converters are turned off.
VistaLINK® enables control and configuration capabilities via Simple Network Management Protocol (SNMP). This offers the flexibility to manage the module status monitoring and configuration from SNMP enabled control systems such as Evertz VistaLINK® PRO locally or remotely (not yet implemented).
Features
- Automatic detection of video standard
- Bypass relay protection on one SDI output for power failures
- 24-bit AES input and audio embedding
- Individual audio group assignment for each group
- Group lock mode maintains phase relationship between the groups for 5.1 audio applications
- Sample rate conversion disable on AES inputs to permit Dolby E embedding
- Programmable audio delays (up to 7 frames in 1/2 video field increments using DIP switches or up to 1365.313ms in 1 sample increments with VistaLINK® control
- Ancillary packet cleaning mode removes all audio before embedding
- Ancillary packet reformatting mode left justifies and removes unused packets before embedding
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- Embeds audio on internally generated black or blue video when there is no video input
- Front panel LEDs indicate video and audio signal presence, and module fault
- VistaLINK® capable for remote monitoring, control and configuration capabilities via SNMP; using VistaLINK® PRO, CP-2116E or CP-2232E Control Panels. VistaLINK® is available when modules are used with the 3RU 7800FR frame and a 7700FC VistaLINK® Frame Controller module in slot 1 of the frame
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Specifications
| Standard | SMPTE 292M (1.5Gb/s) |
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| Formats | 1080i/60, 1080i/59.94, 1080i/50, 1080p/30sF, 1080p/29.97sF, 1080p/25sF, 1080p/24sF, 1080p/23.98sF, 720p/60, 720p/59.94 |
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| Number of Inputs | 1 |
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| Connector | BNC per IEC 61169-8 Annex A |
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| Equalization | Automatic 100m @ 1.5Gb/s with Belden 1684A or equivalent cable |
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| Return Loss | > 10dB up to 1.5Gb/s |
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| Standard | Same as input |
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| Number of Outputs | 2 (1 bypass relay protected) |
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| Connector | BNC per IEC 61169-8 Annex A |
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| Embedded Audio |
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| Standard | SMPTE 299M |
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| Resolution | 24 bits |
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| Sampling Rate | 48 KHz synchronous |
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| Signal Level | 800mV nominal |
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| DC Offset | 0V ±0.5V |
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| Rise/Fall Time | 200ps nominal |
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| Overshoot | < 10% of amplitude |
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| Return Loss | > 15dB up to 1.5Gb/s |
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| Wideband Jitter | < 0.2UI |
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| Standard | SMPTE 276M, single ended AES |
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| Number of Inputs | 4 |
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| Connector | BNC per IEC 61169-8 Annex A |
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| Resolution | 24 bits |
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| Sampling Rate | 32kHz to 96kHz synchronous or asynchronous
48kHz synchronous AES required when sample rate converter is disabled |
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| Impedance | 75Ω unbalanced |
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| Level | 1V p-p ±0.1V |
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| Embedding Latency | 1.3ms to 3ms |
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| Audio Delay |
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| DIP Switch Control | Up to 7 frames, 1/2 frame increments (delay applied to all AES channels) |
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| VistaLINK® or Serial Port Control | Up to 1365.313ms in 1 sample increments (independent control of delay for each channel) |
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| Voltage | +12V DC |
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| Power | 11 Watts |
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| EMI/RFI | Complies with FCC Part 15 Class A, EU EMC Directive |
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Ordering Information
| 7721AE4-HD | HD-SDI 4 AES Audio Embedder with 4 unbalanced AES inputs |
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| Notes | • Rear plate must be specified at time of order - eg: [model]+3RU |
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| Rear Plate Suffix |
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| +3RU | 3RU rear plate for use with 7800FR, 7700FR-C or 350FR Multiframes |
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| +1RU | 1RU rear plate for use with 7701FR Multiframe |
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| +SA | Standalone Enclosure Rear Plate |
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| 350FR | Portable Multiframe which holds 7 modules |
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| 7700FR-C | 3RU Multiframe which holds 15 modules |
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| 7800FR | 3RU Multiframe which holds 15 modules |
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| 7701FR | 1RU Multiframe which holds 3 modules |
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| S7701FR | 7700 Series Standalone Enclosure |
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