3 overview, 1 defining the edid, 2 about hdmi – Kramer Electronics VS-84H User Manual
Page 6: Overview, Defining the edid, About hdmi, 3overview
Overview
3
3
Overview
The VS-84H is a high quality 8 x 4 matrix switcher for HDMI signals that
fits into one vertical space of a standard 19” professional rack enclosure.
In particular, the VS-84H features:
•
Up to 2.25Gbps bandwidth per graphic channel
1
•
Support for HDCP (High Definition Digital Content Protection)
•
HDMI Support – HDMI (V1.4 with Deep Color, x.v.Color™)
•
3D Pass-Through
•
I-EDIDPro™ Kramer Intelligent EDID Processing™ – Intelligent
EDID handling & processing algorithm ensures Plug and Play
operation for HDMI systems
•
A LOCK button to prevent unwanted tampering with the buttons on
the front panel
•
Preset memory locations for quick access to common configurations
You can control the VS-84H using the front panel buttons, or remotely via:
•
RS-232 serial commands transmitted by a PC, touch screen system or
other serial controller
•
The Kramer infrared remote control transmitter
•
A PC connected to the Ethernet port on the device via a LAN
3.1 Defining the EDID
The Extended Display Identification Data (EDID
2
) is a data-structure
provided by a display to describe its capabilities to an HDMI source. The
EDID enables the VS-84H to “know” what kind of monitor is connected to
the output. The EDID includes the manufacturer’s name, the product type,
the timing data supported by the display, the display size, luminance data
and (for digital displays only) the pixel mapping data. See
Section 7.2
details of how to acquire the EDID.
3.2 About HDMI
High-Definition Multimedia Interface (HDMI) is an uncompressed
all-digital
3
audio/video interface, widely supported in the entertainment and
home cinema industry. It delivers the highest high-definition image and
1 Suitable for resolutions up to UXGA at 60Hz, and for all HD resolutions
2 Defined by a standard published by the Video Electronics Standards Association (VESA)
3 Ensuring an all-digital rendering of video without the losses associated with analog interfaces and their unnecessary digital-
to-analog conversions