All video input boards support 256 bytes of EDID and can save, import, and export EDID
data.
HDMI input boards and DVI Pro input boards both also have four analog balanced stereo
inputs on captive screw connectors (see Analog audio inputs on the next page). HDMI
output boards and DVI Pro output boards both also have four analog balanced stereo
outputs on captive screw connectors (see Analog audio outputs on the next page).
3G/HD-SDI/SDI video input boards
The 3G/HD-SDI/SDI video input board automatically recognizes and accepts common
SMPTE and ITU serial digital data rates, including 2.97 Gbps 3G-SDI, 1.485 Gbps HD-SDI,
and 270 Mbps SDI with automatic input equalization. Each input has a buffered and
re-clocked loop-through outputs. The 3G input board converts the incoming signal to digital
Transition Minimized Differential Signaling (TMDS, the core technology used in HDMI and
DVI) before converting to the XTP format used on the backplane.
The board also has four analog balanced stereo inputs on captive screw connectors (see
Analog audio inputs).
VGA universal analog input boards
The VGA universal analog video input board accepts RGBHV, RGBS, RGsB, HDTV
component video, YUV component video, S-video, or composite video on 15-pin HD
connectors. S-video and composite video require BNC to VGA adapters. The inputs feature
auto-detect as the default condition, which automatically recognizes the input signal with no
user configuration. The input format can also be forced via remote control.
The VGA input board converts the incoming signal to digital TMDS, the core technology
used in HDMI and DVI, before converting to the XTP format used on the backplane. The
board de-interlaces and digitizes S-video and composite video to NTSC 480p or PAL 576p.
The VGA input board can deliver one block of 128 bytes of analog DDC/EDID handshake
data for each input that can be used as an EDID reference for each of the source devices. If
no output references are stored, the switcher can use one of the stored EDID data files.
The VGA input board also have four analog balanced stereo inputs on captive screw
connectors (see Analog audio inputs).
Analog audio output boards
The audio output board has four analog stereo audio output connectors for balanced or
unbalanced 2-channel audio. These boards extract 2-channel audio from the embedded
stream for analog audio outputs with mute and audio volume controls.
Secondary signal type
Serial port inserts
The XTP input and output boards also have four local RS-232 and IR insert inputs on
captive screw connectors. The insert inputs support up to a 115k baud rate. Each RS-232
and IR insert and local output is for the associated input or output only and cannot be tied
to other outputs or inputs.
Dedicated UARTs
The XTP II CrossPoint switch can send data strings to inputs and outputs on the XTP
boards using dedicated UART ports. Each XTP input and output has a dedicated UART
port to allow bidirectional communication on every XTP port simultaneously. Once the
Ethernet-to-RS-232 feature is enabled, via the XTP Configuration Software or an SIS
command, the XTP input or output is unable to pass any RS-232 commands from the local
insert connections on the I/O board but instead passes the communications via the UART.
XTP II CrossPoint 1600, 3200, and 6400 Switchers • Introduction 6