3 Overview
The Kramer VM-2HDCP is an HDCP (High-Bandwidth Digital Content
Protection)
1
compatible 1:2 distribution amplifier for DVI-D (Digital) signals.
Since high-resolution DVI signals are very sensitive to cable quality and to
PCB layout, the VM-2HDCP uses a uniquely designed PCB which includes
all buffering, conditioning and amplifying circuitry to provide two high-level
output signals.
In particular, the VM-2HDCP:
Distributes signals having resolutions up to UXGA, including all HDTV
formats
Has a bandwidth of 1.65GHz
Supports the DDWG DVI 1.0 standard
Consists of a built-in re-clocking block that re-generates the DVI signal,
so that several units may be cascaded
Can read and store, in non-volatile memory, the EDID
2
block from one of
the outputs, so it can then provide the EDID information to the DVI
source even if the display device is not connected
Stores a default EDID for fast and efficient connection of the unit
3
Has three DVI-I connectors, which are compatible with all types of DVI
cables
Is a cost-effective solution for distributing the TMDS signals used for
DVI, and uses state-of-the-art line drivers on both outputs
3.1 About HDCP
The High-Bandwidth Digital Content Protection (HDCP) standard
4
, protects
digital video and audio signals transmitted over DVI or HDMI connections
between two HDCP-enabled devices to eliminate the reproduction of
copyrighted material. To protect copyright holders (such as movie studios)
from having their programs copied and shared, the HDCP standard provides
for the secure and encrypted transmission of digital signals.
1 Note that Kramer Electronics Limited is an HDCP Licensee, see http://www.digital-cp.com/list/
2 EDID is Extended Display Identification Data
3 The default EDID feature lets you connect the VM-2HDCP without having to connect a display to the output
4 Developed by Intel
