Features:
- Automatic 3G, HD, or SD SDI standard detection
- Inserts four balanced AES audio streams into any two groups
- Internal sample rate converters for 48kHz AES synchronous with video input
- LEDs show group status and input signal presence
- Automatic input cable equalization
- 2 re-clocked SDI outputs
- Compact and rugged design
- Optional XLR breakout cable (BNC to XLR adaptors available for unbalanced AES inputs)
- Optional external power supply
- Optional rack mounting frames with central power supplies
The 4261D 3G-HD-SD quad AES audio embedder inserts four balanced AES audio streams (8 audio channels) into the ancillary data space of an SDI signal. Audio can be inserted into any two embedded audio groups. AES inputs can be sample rate converted to a 48kHz rate synchronized to the video. Conversion may be bypassed for compatibility with Dolby® streams. Two units can be cascaded to enable embedding into all four available groups (16 audio channels).
The unit automatically detects whether the SDI input is 3G, HD or 270Mb/s SD SDI. There is automatic input cable equalisation and two re-clocked SDI outputs are provided.
The unit requires an external power supply or a rack mounting frame. A 1RU frame is available which takes up to 5 units and a 2U one that takes up to 14. XLR audio breakout cables and external power supplies are also available. Adaptors are available to convert unbalanced audio inputs on BNCs to balanced ones on XLRs.
| Video input | Audio inputs | ||
| 3G | SMPTE 424M & 425M-AB (2.97& 2.967Gb/s) 1080p50/59.94/60 |
Inputs | Balanced AES |
| HD | SMPTE 292M (1.485 & 1.435Gb/s) 1080i 60/59.94/50 1080p/psf 30/29.97/25/24/23.98 720p 60/59.94/50/30/29.97/25/24/23.98 |
Number | 4 |
| Connector | Female 15pin sub-D (optional XLR breakout cable) | ||
| Type | Transformer coupled | ||
| SD | SMPTE 259M-C (270Mb/s) 625i 50 525i 59.94 |
Sample rate | 32-96kHz |
| Sample rate conversion | AES converted to 48kHz synchronous with video (selected by dipswitch) |
||
| Standard | AES3 | ||
| Number | 1 | Impedance | 110Ω |
| Connector | 75Ω BNC | Input level | 3.5v p-p ±5% |
| Return loss | >15dB to 1.485GHz >10dB 1.5 to 2.97GHz |
Breakout cable (optional) |
Balanced 4 male XLRs |
| Cable equalization | 3G 140m, HD 230m, SD 250m (Belden 1694A) | Electrical | |
| Video outputs | Voltage | 6-12VDC | |
| Standards | As input | Power | <3W |
| Format | As input | Connector | Locking 2.5mm jack (center +ve) |
| Number | 2 | Safety | EN60950 |
| Connectors | 75Ω BNCs | Control | |
| Jitter | <0.2ui peak-to-peak | Setup | 6 way dipswitch |
| Return loss | >15dB to 1.485GHz >10dB 1.5 to 2.97GHz |
LEDs | Power, input presence & group status |
| Embedding | Other | ||
| Standards | SMPTE 299M & 272M-C | Size (mm) | 3¼ x 2½ x 1¼ plus connectors |
| Weight | 7 oz | ||
| Temperature | 5°C to 40°C | ||
| Humidity | 80% max (non condensing) |
119 E. McKnight Way, Unit A
Grass Valley, CA 95949
USA
Phone: 530-477-2984 Fax: 530-477-2986
Internet: www.isis-group.com
Email: ldole@isis-group.com
11-08