Specifications

STUDIO EQUIPMENT
LINK ELECTRONICS
975
DIGITAL DISTRIBUTION AMPS
[phone] • 1-800-947-9901• Quick Dial 821
PHOTO - VIDEO - PRO AUDIO
LEI-515
SDI Presence Detector
Designed to monitor two SDI
signals and automatically switch
to a backup digital source. In the
event of a failure of the number
one digital signal it will switch
to an auxiliary signal. A captive-
screw terminal sub-module is
provided for “audio-follow video” capability or status mode.
A 3-terminal dry-contact connector offers normally-closed and normally
open contacts to control peripheral gear. Component (270MB/s) and
composite (143MB/s) digital video formats are supported.
The input receiver device monitors the incoming signal level & produces
a DC voltage proportional to the amount of gain and equalization
necessary to recover and re-shape the signal. If the automatic gain/EQ
voltage exceeds a user set threshold, it will switch to auxiliary input
before data errors are visible in the primary input. Front panel switches
allow you to override the automatic change-over function and choose
either video source. Dual front panel “status” LEDs indicate the presence
or absence of Primary and Auxiliary video inputs. Primary/auxiliary
switching lets you take advantage of the automatic gain and
equalization capabilities of the input receiver. A 75 ohm matched-
impedance relay allows the input signal to pass through if power is lost.
LEI-515 Presence Detector
(Mfr # LEI515 • B&H # LILEI515)...........................599.95
LEI-540
AES/EBU Digital Audio DA
Accepts either AES3-1992 or
AES3-ID inputs and provides a
total of eight outputs of digital
audio: six to AES3-ID and two
to AES3-1992. Transformer-
coupled inputs and outputs
are standard to eliminate the
possibility of ground loops.
Captive screw terminal blocks are used for the AES3-1992 input/outputs
while BNC’s are used for the AES3-ID connections.
A front panel switch selects between BNC and screw terminal, (AES3-ID,
AES3-1992 ). Sample rate LED’s show three rates, 48KHz, 44.1KHz and
32KHz. An error detection LED indicates any errors on the incoming
signal. An AC power switch on the front panel allows the user to turn the
unit on or off at will. No need to go behind the rack to check the fuse;
the fuse is on the front panel.
Many features are found in the LEI-540 for professional use. The digital
signal path uses state-of-the-art integrated circuits. The data is re-sliced
and reclocked for jitter attenuation. Sample rates are automatically
detected and indicated by front panel LEDs. Data errors are also
detected and reported by a red LED on the front panel.
LEI-540 1x8 Digital Audio DA
(Mfr # LEI540 • B&H # LILEI540)...................504.95
LEI-547
AES/EBU Digital Audio to Analog
Accepts either AES3-1992 or
AES3- ID inputs and provides a
total of four outputs of digital
audio to AES3-ID specifications.
In addition, it provides two sets
of balanced low impedance
analog outputs. Transformer
coupled digital inputs and
outputs are standard to eliminate the possibility of ground loops.
Captive screw terminal blocks are used for the AES3-1992 while AES3-ID
use BNC connectors.
A front panel switch selects between BNC or screw terminal, (AES3-ID,
AES3-1992). Sample rate LEDs show three rates, 48KHz, 44.1KHz and
32KHz. An error detection LED indicates any errors on the incoming
signal. Front panel AC power switch allows users to turn the unit on or
off at will. The fuse is on the front panel for easy access. The output
cells employ a unique cross-coupled design for precise amplitude and
phase matching. The digital signal path uses state-of-the-art
integrated circuits. The data is re-sliced and reclocked for jitter
attenuation. Sample rate is automatically detected and indicated by
front panel LEDs. Data errors are also detected and reported by a front
panel red LED.
LEI-547
Digital Audio Monitor DA (Mfr # LEI547 • B&H # LILEI547) ..........559.95
LEI-550 • LEI-555
Serial Digital Distribution Amplifiers
The LEI-550 serial digital video
distribution amplifier restores the
incoming signal to its proper
amplitude. The signal is reshaped
with automatic equalization,
re-sliced and DC restored. Has six
outputs on the rear panel.
A front panel module fault LED indicates that the input signal level is
below a preset threshold. The LEI-550 accepts composite 143Mb/s and
177Mb/s, component 270Mb/s, and 16:9 aspect ratio 360Mb/s standards.
The signal is transparent to the incoming signal data rate. The output
level is adjustable from the front panel.
The LEI-555 restores the incoming signal to its proper amplitude. The
signal is reshaped with automatic equalization, re-slicing and DC
restoration. It re-clocks the input signal for distribution over long distance
cables up to 500’. Six outputs on the rear panel. A front panel fault LED
indicates a weak signal or no input signal present. The sensitivity of the
LED can be adjusted. The LEI-555 input signal may be composite or
component. Two LEDs show power supply and signal status.
LEI-550 1x6 SDI Distribution Amplifier
(Mfr # LEI550 • B&H # LILEI550)
Composite Video, Gain Control, Desktop.............................................504.95
LEI-555 1x6 SDI Distribution Amplifier (Mfr # LEI555 • B&H # LILEI555)
Dual Gain Control, Desktop.......................................................................548.95