Sonifex RB-VHDA8

The Sonifex RB-VHDA8 is a high performance, reliable eight way digital video distribution amplifier for re-clocking and distributing a 3G, HD (high definition) or SD (standard definition) SDI source to eight outputs. The unit provides automatic input detection, re-clocking and cable equalisation of the input signal 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-VHDA8 Block Diagram.

Specification Sonifex RB-VHDA8
Standards
Compatible Standards:	SMPTE-424M (3G) SMPTE-292M (HD-SDI) SMPTE-259M-AC¹ (SD-SDI) SMPTE 344M¹ DVB-ASI² at 270Mb/s
¹ Other rates will be passed without reclocking. ² Non inverted outputs only.
Impedance:	75 Ω terminating
Equalisation:	Up to 100 m of Belden 1694A at 1.485Gbps Up to 350 m of Belden 1694A at 270 Mbps
Data Rates:	Fully supported: 143, 270, 1483.5,1485, 2967 & 2970Mbps Passed but not reclocked: 177, 360 & 540Mbps
Reclocking & Equalisation:	Automatic
Resolution:	Automatic
Return Loss:	>15dB at 1500MHz
Output Jitter:	<0.2UI
Signal Level:	800mV ±10%
Front Panel Indicators
Power LED:	Amber indicates power is present, Red indicates detection of valid incoming SDI signal
Rear Panel Connections
HD/SD-SDI Video Input:	1 x BNC (Unbalanced)
HD/SD-SDI Video Outputs:	8 x BNC (Unbalanced)
Power Supply: AC:	Filtered IEC, continuously rated 85-264VAC, 47-63Hz, fused
Fuse Rating:	Anti-surge fuse 1A 20 × 5 mm
DC:	12V 300mA max, DC supply, 2.5 mm socket fused
Equipment Type
RB-VHDA8:	3G/HD/SD-SDI 1 Input, 8 Output Video Distribution Amplifier
Physical Specification
Dimensions (Raw):	48 cm (W) x 10.8 cm (D) x 4.3 cm (H) 19” (W) x 4.3” (D) x 1.7” (H) (1U)
Dimensions (Boxed):	58.5 cm (W) x 22.5 cm (D) x 7 cm (H) 23” (W) x 8.9” (D) x 2.8” (H)
Weight:	Nett: 1.3 kg Gross: 1.9 kg Nett: 2.9lbs Gross: 4.2lbs
Accessories
RB-RK3:	1U Rear panel rack kit for large Redboxes