Access Multiple HDMI Source Components Help! My HDTV
only has one HDMI input but I have a HD digital cable TV box and a
upconverting DVD player with HDMI outputs. How can I connect all my
source components to my HDTV with HDMI cables?
You need to use an HDMI switch box or a A/V receiver with multiple
HDMI ports. Be aware that the HDMI standard has undergone several revisions in the last few years and if you need the latest level of HDMI support and capabilities, you need to make sure that the HDMI switch box or A/V receiver you select is capable of delivering the HDMI revision level you need. See HDMI revisions for the information on HDMI capabilities at each revision level.
As HDMI devices become more commonplace, you need
to be able to select your various signal sources without swapping
cables. Signal sources such as DVD players, HDTV signal sources like
HD cable TV or HD Satellite TV or the newer Blu-ray
players with 1080p content can have HDMI video/audio
outputs which you'll want to hookup to your HDTV.
Rear panel - 19 pin female HDMI
HDMI Switch with remote control
Multiple HDMI™ inputs and one or two HDMI outputs.
Simultaneous connection of high definition video sources, such as
satellite systems and HD DVD players. Outputs send the high
definition audio/video signals to high definition displays (HDTV) or
audio receiver. Digital audio and high definition video for each
source is accessed immediately when the unit "switches" to it.
Control the switching by using the IR remote.
bandwidth digital content protection) is a standard encoded into the
video signal to prevent it from being pirated. If a source device is
HDCP coded and is connected to a display or projector without the
proper decoding mechanism, the picture is relegated to "snow" or in
some cases, very low (480P) resolutions of the images. In order to
see high resolution digital video with HDCP compliance, both the
source, the display and anything in between must be equipped with
HDMI connections that can enable HDCP decoding, such as the HDMI
How the HDMI switch
You simply connect all your component
sources to the HDMI Switcher's inputs using HDMI cables. Once the
sources, the Switcher and the display are powered and connected, you
simply select which source you want to view using the IR remote.
HDMI supports both Audio and Video signals.
- Switch between any HDMI™ source
- Additional digital optical audio output extracted from HDMI™
input for easy connection to multi-channel audio receivers
- Maintains high resolution video - HDTV resolutions up to 1080p
- IR remote
- HDMI™ compliant
- HDCP compliant
- Video Amplifier Bandwidth: 1.65 Gbps
- Single Link Range: 1080p/1920 x 1200
- HDMI Connector: type A 19 pin female
- Digital Audio Output: TOSlink
- Power Supply: 24V DC
hookups for HDTV
DVI, HDCP AND
DVI, launched in 1999, is a
digital interface that transmits video data from a source device to
a display. With DVI, there is no digital-to-analog or
analog-to-digital conversion that needs to take place before, during
or after transmission. This streamlined process makes DVI superior
to interface connectors such as analog video that may require a
conversion from analog to digital.
is generally considered to be the better transmitter primarily
because analog is sensitive to the phase changes of cable. Simply
stated, the analog picture cannot be reproduced as accurately as the
digital one, particularly at distances. Analog cables are also
generally more intolerant to environmental conditions and can add
“noise” among other anomalies.
DVI emerged as the preferred
connector because it’s purely digital. This means the integrity of
the video signal remains true through any transmission, even long
distances using low capacitance, thicker DVI cables and fiber optic
interface technologies, the distance of DVI transmission can extend
as far as 500-meters from the source to the display.
USB and FireWire
There are two other data transmission interfaces that
compete with DVI: IEEE-1394 FireWire and USB (universal serial bus)
2.0. Yet both of these use some form of compression. When a signal
is compressed, transmitted and then uncompressed, it has more
potential for difficulty than one that is sent uncompressed, like
DVI. Although both FireWire and USB are often used to connect
cameras and other DTV (digital television) devices, neither is the
format of choice for large panel high definition displays such as
Plasma or LCD flat-panels.
With the advent of DVI, however, came HDCP
(High-bandwidth Digital Content Protection), a standard "key"
encoded into the DVI signal to prevent video data from being
pirated. HDCP was strongly endorsed by the entertainment industry.
If a source device is HDCP coded and is connected to a HDTV display
or projector via DVI without the proper HDCP decoding mechanism, the
picture is relegated to "snow" or in some cases, a very low (480P)
resolution. In order to see HDTV with HDCP compliance, both the
source and display devices must be equipped with DVI connections
that can enable HDCP using "software key" decoding.
HDMI (high definition multimedia interface), is a new
connector that is based on the DVI-HDCP model. HDMI with HDCP
addresses the concerns of the Hollywood film community while
providing consumers the ability to view high quality content on all
HDTV displays and projectors. It also offers several features that
make it perfectly suited for the consumer electronics market:
- supports uncompressed high definition video plus
multi-channel audio in a single cable using a smaller connector that
eliminates the need for multiple cables in home entertainment
systems, simplifying installation.
- transmits uncompressed digital video so that the
picture maintains a high quality of color depth, brightness and
- supports Consumer Electronics Control (CEC) based on
the AV.link protocol so it can be controlled with a universal remote
that is used with multiple HDMI sources such as DVD players or
satellite set-top boxes.
- supports bi-directional communication between
devices, allowing the DTV to communicate its preferred audio/video
formats to the set-top box, and the set-top box to communicate what
video format it is providing to the display. This enables the DTV to
make intelligent decisions on how to render any given image in the
format designated by the original film providers.
- supports every uncompressed standard, enhanced and
high definition video format ranging from 480I to 480P, 720P, 1080I
and 1080P as well as existing PAL formats.
- has the bandwidth to support compressed audio
formats such as Dolby Digital, Dolby Digital EX, DTS, DTS EX and
uncompressed formats (PCM audio) up to eight channels, up to 192kHz,
up to 24-bits.
- supports most standard PC monitor formats, such as
VGA, XGA and SXGA—all in a single HDMI cable.
- extends as far as 500-meters using proper cabling
techniques. In most commercial and home theater installations, the
consumer electronics components are installed in a closet or
basement far from the actual displays. This makes cable length an
important feature for consumers and installers.
Because of these advantages, HDMI is becoming the
standard digital interface for consumer home theater devices and
How do I find a HDMI switch
Google online is one resource. Search for
HDMI switch box.
Octava HDMI switch
Monoprice.com HDMI switch boxes
HDMI switch boxes from Monoprice.com
HDMI switch box - Monoprice.com - 5X1 Enhanced 1.3b Certified HDMI Switch with built-in Equalizer (REV.3.0) w/ Remote
KeyDigital HDMI switch box