Specifications

TEST & MEASUREMENT
LEADER
846
LT 450
w ww.bhphotovideo.com
PHOTO - VIDEO - PRO AUDIO
LT 444 Auto Changeover
The LT 444 is a changeover unit that automatically
switches from primary signals to the backup system
signal when errors are detected. Primary and backup
system input signals are connected to each channel for
detection of errors based on the specific amplitude of the
primary input signal. Multiformat operation is facilitated through the setting of the internal configuration DIP switches. One
changeover provides eleven multiformat channels covering HD-SDI (channels 1 to 6 only), SD-SDI, AES/EBU digital audio,
analog black burst signal (PAL or NTSC), and tri-level sync signals. The delay for starting the error monitor at power up can
be set to FAST or SLOW depending on the rise time of the system signal source being monitored. If a switch occurs from the
primary signal to the backup signal, the channel that caused the problem is indicated on the front panel LED.
◆ 11 user configurable Channels
◆ Fault channel 1-11 LED indicators
◆ Selectable delay time for monitor start
◆ Sync Source primary or backup
◆ Selectable determination criteria of the
signal level
◆ Auto switching on fault or manual
◆ Fault indicators and reset for primary and
backup
◆ Supports HD-SDI, SD-SDI, AES/EBU Digital
Audio, HD Analog Tri-Level Sync, NTSC or PAL
analog black burst
◆ Keylock automatic operation after 60 seconds
Multiformat Pattern Generator
The LT 450 is a DTV-compatible multiformat pattern
signal generator equipped with analog component
and composite outputs and digital outputs. It generates
monoscope, color bar, ramp, crosshatch, multiburst,
character, and other test patterns. You can add
additional digital outputs such as DVI-I and HDMI and
analog outputs such as a SCART connector by ordering option units.
◆ Test most video displays, including television
sets, PC monitors, and projectors. The LT 450
supports 19 component and composite
output formats, and 5 PC monitor formats.
◆ Equipped with an S connector for Y/C
separation signal output. An ID signal is
superimposed on the C signal.
◆ Analog and digital component outputs can
be switched between RGB and Y/PB/PR.
◆ Has a mini D-sub 15-pin connector (analog),
and a DVI-I connector (digital), to interface
with PC monitors. DVI-I can be used to check
HDCP-compliant copyright protection func-
tions and make checks on the DDC function.
◆ Equipped with HDMI (1.3a) connector, which
can be used to check HDCP-compliant copy-
right protection functions and to make
simple checks on the CEC and DDC functions
(pass/fail results can be displayed on screen).
Checks can be made simultaneously on up to
seven outputs (with option boards installed).
◆ Sync signal connectors transmit CS (trilevel or
binary), HD, and VD signals.
◆ Equipped with a JEITA CP-4120 D5 output.
Supports ID signals (lines 1, 2, and 3).
◆ Make any test pattern into a simple motion
picture pattern by scrolling it vertically,
horizontally, or diagonally.
◆ Up to 100 panel settings can be stored and
recalled
◆ Analog audio output with 400 Hz or 1 kHz
frequency can be set and the output can be
turned off separately for left /right channels.
◆ Video and analog sync signal level can be
adjusted separately in the range of 0 to100%.
◆ RS-232C port allows remote control from a PC
LT450 Pattern Generator
(LELT450) .........6399.95
DVI-I Output Module
(LELTOP01)...................999.95
HDMI Output Module
(LELTOP02)...............1299.95
SCART Output Moduel
(LELTOP03).............1099.95
(Mfr # LT444 • B&H # LELT444)