Link electronics HD SD SDI Distribution Amplifier VDA-55 Manuel utilisateur

LINK ELECTRONICS, INC.

HD or SD DIGITAL DISTRIBUTION AMPLIFIER

FEATURES Model VDA-55

mDC Powered, Portable

mSMPTE 259M, 344M, 292M compliant

mWall Wart Power Supply

mHD SD SDI Input

mFour HD SD SDI Outputs

mLock/Format Indication

mAutomatic Equalization and Re-clocking

mCompact Size

HD SD SDI distribution amplifiers combine

exceptional performance with both value and

compact size. The VDA-55 supports 143Mb/s,

270Mb/s and 1.485Gb/s Auto Rate Detection with

"Power OK", "Lock" and "HD" indicators. The

compact size of this distribution amplifiers, allows

it to be located in spaces where standard rack

space is limited.

The LINK VDA-55 HD SD SDI DA restores the

incoming signal to its proper amplitude. The signal

is reshaped with automatic equalization, and DC

restoration. The VDA-55‘s maximum equalized

cable length; for SD up to 250 feet at 270Mb/s, and

HD up to 100 feet at 1.485Gb/s. Four outputs are

provided on the end panel, as well as a detachable

DC power cable.

There are three LED’s on the end opposite the BNC

connectors, showing Lock, Signal Presence and

DC Power. There are four outputs that represent

the input.

The VDA-55 input signal can be 143Mb/s,

177Mb/s, 270Mb/s, 360Mb/s, 540Mb/s, and 1.485

Gb/s standards.

The VDA-55 carries a10-year warranty including

parts and labor.

The three LED's show the status of the input

signal; locked, and whether the data is Serial

Digital standard definition, or High Definition, HD

SDI. The signal output level is 800mV p-p, and

reclocked. The VDA-55 can be used in places

where space is a premium and at the same time

get excellent performance and lower cost.

The VDA-55 is designed for applications that

require equalization, re-clocking and distribution for

HD SD SDI digital video as per SMPTE 259 (SD1)

and SMPTE 292 (HD). The VDA-55 includes an

automatic input cable compensation circuit

commonly referred to as an adaptive cable

equalizer.

The VDA-55 includes acrystal referenced re-

clocking circuit that senses three data rates: 143

Mb/s, 270Mb/s and 1.484 Gb/s. If the data rate is

one of these three rates the re-clocker will

automatically activate and reduce high frequency

jitter. If the incoming data rate is not 143 Mb/s.

270Mb/s or 1.484 Gb/s, then the VDA-55 re-

clocker will go into the bypass mode. If the data

rate is 143 Mb/s or 270 Mb/s, the VDA-55 output

rise times are slowed down to comply with the

SMPTE 259 specification. The default for the VDA-

55 is the faster SMPTE 292 HD rise time.

LINK ELECTRONICS, INC. m2137 Rust Ave. mCape Girardeau, MO 63703

Phone: 573 334 4433mFAX: 573 334 9255

BNC VIEWING ANGLE

VDA-55 SERIAL DIGITAL DISTRIBUTION AMPLIFIER

SPECIFICATIONS

Serial Digital Video Input:

Number of Inputs: ........................................................................... 1

Connectors: ............................................................................BNC

Standards:

Composite: ...................................................................... 143Mb/s

Component: ...........................................177Mb/s, 270Mb/s, 360Mb/s, 540Mb/s

HD Component: .................................................................1.485Gb/s

Impedance:.........................................................................75 Ohms

Return Loss:.......................................................................... >15dB

Signal Level ..........................................................................800mV

Input Cable Length Max:

SD, : ................................................................. 250 Feet @ 270Mb/s

HD,: .................................................................100 Feet @ 1.485Gb/s

Jitter: ........................................................................... 0.2 UI P-P

Digital Outputs:

Number of Outputs:......................................................................... 4

Connectors: ............................................................................BNC

Standards: ....................................................................Same as input

Impedance:.........................................................................75 Ohms

Return Loss:.......................................................................... >15dB

Signal Level: ......................................................................... 800mV

Overshoot: ................................................................... 8% of Amplitude

End Panel LED:

Lock Detect: ............................................................................ LED

HD: .................................................................................... LED

DC Power: .............................................................................. LED

ENVIRONMENTAL:

Temperature: ..............................................................0Eto 50EC Ambient

Humidity: .........................................................10% to 90% non-condensing

Power: .............................................................................4.2 Watts

MECHANICAL:

Height: .............................................................................. .75 Inch

Width: ............................................................................... 4.0 Inch

Depth: .............................................................................. 2.0 Inch

Weight: ................................................................................. 4 Oz

LINK ELECTRONICS, INC. 2137 Rust Avenue; Cape Girardeau, MO 63703

Phone: 573 334 4433; FAX: 573 334-9255

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