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Overview
3
3 Overview
The VM-4HD HD/SD - SDI Distributor is a high performance 1:4 distributor
for all SDI video signals.
In particular, the VM-4HD:
Accepts one input and distributes the signal to 4 identical outputs using
BNC connectors
Has a video bandwidth of 1.485GHz that allows it to be used for standard
definition and high definition serial digital video signals (SD/HD-SDI)
Is SMPTE 292M, 259M and 344M compliant and supports data rates of
143, 177, 270, 360, 540, 1483.5, 1485Mb/sec
Provides automatic, multi-rate, equalization and reclocking for losses
typical with long runs of 75 co-axial cable
Has LOCK, HD and SD output indication LEDs
Achieving the best performance means:
Connecting 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)
Avoiding interference from neighboring electrical appliances that may
adversely influence signal quality and positioning your Kramer VM-4HD
away from moisture, excessive sunlight and dust
Caution – No operator-serviceable parts inside unit.
Warning – Use only the Kramer Electronics input power
wall adapter that is provided with this unit
1
.
Warning – Disconnect power and unplug unit from wall
before installing or removing device or servicing unit.
1 For example: model number AD2512C, part number 2535-000251