sonifex rb vhda2x4 1

The Sonifex RB-VHDA2x4 is a high performance, reliable dual input and eight output digital video distribution amplifier for re-clocking and distributing up to two 3G, HD (high definition) or SD (standard definition) SDI sources.

By default, the RB-VHDA2x4 acts as two independent video distribution amplifiers, with input 1 routed to outputs 1-4 and input 2 routed to outputs 5-8. Either input can also be routed to all outputs if desired which can be selected by the Input Select switch on the front panel or via the built-in webserver. The webserver also provides status information for the unit.

The unit provides automatic input detection, re-clocking and cable equalisation of the input signals to 100/350 meters (HD/SD) of coax cable.

The full range of 3G, SD and HD standards are supported by the unit allowing PAL and NTSC signals up to 1080p 60Hz to be distributed.

Each output is individually buffered providing separately driven outputs for greater reliability.

As well as an AC power input, the unit also has a 12V DC input for use, for example, in outside broadcast vehicles. Both power inputs can be used to give a dual redundant power supply; whichever voltage is higher will be used.

RB-VHDA2x4 Diagram

RB-VHDA2x4 Diagram.

Compatible Standards:SMPTE-424M (3G) SMPTE-292M (HD-SDI) SMPTE-259M-AC1 (SD-SDI) SMPTE 344M DVB-ASI at 270Mb/s 1. Other rates will be passed without reclocking.
1. Other rates will be passed without reclocking.
Impedance:75Ω terminating
Equalisation:Up to 100m of Belden 1694A at 1.485Gbps Up to 350m of Belden 1694A at 270 Mbps
Data Rates:143, 270, 1483.5,
Fully supported Passed but not reclocked:1485, 2967 & 2970Mbps 177, 360 & 540Mbps
Reclocking & Equalisation:Automatic
Return Loss:>15dB at 1500MHz
Output Jitter:<0.2UI
Signal Level:800mV ±10%

Front Panel Indicators

Power LED:Red indicates power is present
Input Status 1 & 2 LEDs:Green indicates signal is present, flashing red indicates signal is missing.

Rear Panel Connections

3G/HD/SD-SDI Video Input:2 x BNC (Unbalanced)
3G/HD/SD-SDI Video Outputs:8 x BNC (Unbalanced)
Ethernet Port:RJ45 with status LEDs
Power Supply: AC:Filtered IEC, continuously rated 85-264VAC, 47-63Hz, fused, max 10W
Fuse Rating: DC:Anti-surge fuse 1A 20 x 5mm 12V 300mA max, DC supply, 2.5mm socket fused

Equipment Type

RB-VHDA2x4:3G/HD/SD-SDI 2 inputs, 8 output video distribution amplifier

Physical Specification

Dimensions (Raw):48cm (W) x 10.8cm (D) x 4.3cm (H) 19” (W) x 4.3” (D) x 1.7” (H) (1U)
Dimensions (Boxed):58.5cm (W) x 22.5cm (D) x 7cm (H) 23” (W) x 8.9” (D) x 2.8” (H)
Weight:Nett: 1.3kg  Gross: 1.9kg Nett: 2.9lbs Gross: 4.2lbs


RB-RK3:1U Rear panel rack kit for large Redboxes
BW Price Guarantee

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Sonifex RB-VHDA2x4


Tech Support

2-Year Warranty


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