Marshall VDA-108-3GS Universal Distribution Amplifiers User Manual
- June 4, 2024
- Marshall
Table of Contents
Marshall VDA-108-3GS Universal Distribution Amplifiers
Safety Instructions
The VDA-108-3GS 1×8 3G/HD/SD-SDI Re-clocking Distribution Amplifier has been tested for conformance to safety regulations and requirements and has been certified for international use. However, like all electronic equipment, the VDA-108-3GS should be used with care. Please read and follow the safety instructions to protect yourself from possible injury and to minimize the risk of damage to the unit.
- Follow all instructions and warnings marked on this unit.
- Do not attempt to service this unit yourself, except where explained in this manual.
- Provide proper ventilation and air circulation and do not use near water.
- Keep objects that might damage the device and assure that the placement of this unit is on a stable surface.
- Use only the power adapter and power cords and connection cables designed for this unit.
- Do not use liquid or aerosol cleaners to clean this unit. Always unplug the power to the device before cleaning.
Introduction
The VDA-108-3GS receives one SDI input, perfectly duplicates it, and re- transmits eight SDI outputs for real time multi-viewing. It is a reliable video device splitting a SDI, HD-SDI, or 3G-SDI video source to eight SDI compliant displays at the same time. Besides, built-in re-clocking & equalization features provide the best performance for SDI distribution amplifier.
Features
-
3G/HD/SD triple-rate distribution
-
Eight separately buffered and re-clocked outputs
-
Supported SDI format
» 3G-SDI (SMPTE 424M, 425M level A, B up to 2.97 Gbps)
» HD-SDI (SMPTE 292M, 296M up to 1.485 Gbps)
» SD-SDI (SMPTE 259M, up to 270 Mbps) -
Cable equalization (Belden 1694A) and signal retiming
-
Video bandwidth: 2.97Gbps, 2.97/1.001Gbps
-
Automatic detection of 3G/HD/SD-SDI signals
-
Dual color LED indication of input lock and rate
-
Passes all ancillary data
-
Provides automatic cable equalization
» [3G]* >120m (400ft)
» [HD] >200m (667ft)
» [SD] >300m (1000ft) -
Re-clocks SDI signals for cascading and thus longer transmission
-
Inter-locked power supply for better fixedness
Note: The cable length depends on the characteristics and quality of the cables.
Package Contents
- 1x VDA-108-3GS
- 1x 5V power adapter
- 1x User Manual
Specifications
| Model Name | VDA-108-3GS |
|---|
Technical
SDI standards| SD/HD/3G-SDI
Auto 3G/HD/SD detection| Yes
Supported protocols| SMPTE 259M, SMPTE 292M, SMPTE 424M, SMPTE425M
Video bandwidth| [2.97Gpbs & 2.97/1.001Gbps]
Data rates| 270 / 1483 / 1485 / 2970 Mbps
Output impedance| 75
Re-clocking function| Yes
Cable equalization| [3G-SDI] >120m (394ft) / [HD-SDI] >200m (656ft) / [SD-SDI]
300m (984ft)
Audio support| Yes
RP-198 pathological patterns| Immune
PCB stack-up| 4-layer board [impedance control — differential 100; single 50]
Input| 1x BNC [SDI]
Output| 4x BNC [SDI]
BNC connector| 75 inter-locked socket
Eye pattern characteristics [HD]| Amplitude: Within 800mV ±3% (<10%) Long time jitter: 0.195 UI (<1.0 UI)
Rise overshoot: Less than 2% (<10%) Timing jitter: 0.195 UI (<1.0 UI)
Fall overshoot: Less than 2% (<10%) Alignment jitter: 0.127 UI (<0.2 UI)
Mechanincal
Housing| Metal enclosure
Dimensions [L x W x H]
| Model| 120.5 x 41.4 x 24.2mm [4.7” x 1.6” x1”]
Package| 175 x 128 x 134mm [6.9″ x5″ x5.3″]
Carton| 662 x 366 x 290mm [2’2″ x 1’2″ x 1′]
Weight
| Model| 259g [0.6 lbs]
Package| 525g [1.2 lbs]
Fixedness| Inter-locked power supply
Power supply| 5V 2A DC
Power consumption| 1.3 Watts [max]
Operation temperature| 0~40°C [32~104°F]
Storage temperature| -20~60°C [-4~140°F]
Relative humidity| 20~90% RH [no condensation]
Note: The measurement results are from Tektronix WFM-7120 with SDI
through 1m (3.3ft) long Belden 1694A
www.marshall-usa.com
Panel Descriptions
Front Panel
-
3G/HD/SD-SDI Output
-
3G/HD/SD-SDI Output
-
3G/HD/SD-SDI Output
-
3G/HD/SD-SDI Output
-
5V DC power jack
Rear Panel
-
Power LED indicator
-
3G/HD/SD-SDI Input
-
3G Signal LED indicator
-
HD Signal LED indicator
-
SD Signal LED indicator
-
3G/HD/SD-SDI Output
-
3G/HD/SD-SDI Output
-
3G/HD/SD-SDI Output
-
3G/HD/SD-SDI Output
Hardware Installation
- Connect a camera or other devices equipped with 3G/HD/SD-SDI outputs to VDA-108-3GS 3G/HD/SD-SDI input.
- Connect devices equipped with 3G/HD/SD-SDI inputs (e.g. monitors or video processors) to VDA-108-3GS 3G/HD/SD-SDI outputs.
- Plug power adapter cable into 5V DC power jack.
Connection Diagram
Warranty
Marshall Electronics warranties to the first consumer that this device will,
under normal use, be free from defects in workmanship and materials, when
received in its original container, for a period of two years from the
purchase date. This warranty is extended to the first consumer only, and proof
of purchase is necessary to honor the warranty. If there is no proof of
purchase provided with a warranty claim, Marshall Electronics reserves the
right not to honor the warranty set forth above. Therefore, labor and parts
may be charged to the consumer. This warranty does not apply to the product
exterior or cosmetics. Misuse, abnormal handling, alterations or modifications
in design or construction void this warranty. No sales personnel of the seller
or any other person is authorized to make any warranties other than those
described above, or to extend the duration of any warranties on behalf of
Marshall Electronics, beyond the time period described above.
Due to constant effort to improve products and product features,
specifications may change without notice.
20608 Madrona Avenue, Torrance, CA 90503
Tel: 800-800-6608 /
310-333-0606 • Fax:
310-333-0688
www.marshall-usa.com