3 overview – Kramer Electronics VS-44HD User Manual

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Overview

3 Overview

The

VS-44HD is a true 4x4 matrix switcher

for standard definition / high

definition SDI signals that lets you simultaneously route any of the four

inputs to any or all of the four outputs. It can be used as a 4x4 SD/HD-SDI

matrix switcher or as a dual-link 2x2 SD/HD-SDI Matrix

switcher. The

VS-44HD features:

Input and output signals on BNC connectors and selector buttons that

automatically light up in different colors—green, when the

VS-44HD

detects a ‘standard definition’ signal, or blue, when it detects a ‘high

definition’ signal

Reclocking and equalization on each input

The ability to switch genlocked video signals according to timing of the

GENLOCK reference input. Switching according to the Bi-level or

Tri-level Genlock input according to SMPTE RP-168

Factory reset that lets you reset the machine to its original default state

The storing and recalling of setups, a Take button for the execution of

multiple switches all at once, and a front panel lock

The

VS-44HD is housed in a 19" 1U rack mountable enclosure and is fed

from a 100-240 VAC universal switching power supply. Control is via the

front panel buttons, infrared remote control transmitter, and/or remotely, by

RS 232 or RS 485 serial commands transmitted by a touch screen system, PC,

or other serial controller, as well as ETHERNET or remote contact closure for

forced operation.
To achieve the best performance:

Connect only good quality connection cables, thus avoiding interference,

deterioration in signal quality due to poor matching, and elevated noise

levels (often associated with low quality cables)

Avoid interference from neighboring electrical appliances that may

adversely influence signal quality and position your Kramer

VS-44HD

away from moisture, excessive sunlight and dust

4 Your VS-44HD 4x4 SD/HD-SDI Matrix Switcher

Figure 1, Table 1, and Table 2 define the

VS-44HD 4x4 SD/HD-SDI Matrix

Switcher.

1 Switching is implemented during the vertical interval period according to the SMPTE RP-168 standard, when using
synchronized SDI sources
2

The sources must be genlocked to the GENLOCK input in order to switch cleanly