Datasheet

Studio Technologies, Inc. Live-Link Jr. Remote Camera Interface System, Issue 5, Page 4
Live-Link Jr. General
Specifications
SDI Compatibility, Supported
Resolutions, and Rates:
SD-SDI per SMPTE ® ST 259:2008:
525i: 59.94
625i: 50
HD-SDI per SMPTE ST 292:2011:
720p: 50, 59.94, 60
1080i: 50, 59.94, 60
1080p: 23.98, 24, 25, 29.97, 30
1080psf: 23.98, 24
3G-SDI Level A per SMPTE ST 424:2006
and ST 425:2011:
1080p: 50, 59.94, 60
Audio, Data, GPI/GPO, and Control
Data Transport:
Embedded into SD-SDI as HANC
Ancillary Data per SMPTE ST 272:2004
and ST 291:2011.
Embedded into HD-SDI as HANC
Ancillary Data per SMPTE ST 291:2011
and ST 299:2009.
Embedded into 3G-SDI as HANC
Ancillary Data per SMPTE ST 291:2011,
ST 299:2009, and ST 425:2011.
DUO connector. As previously mentioned, this connector
supports two fibers along with four metallic conductors. The
camera end unit can be powered by a 10-50 volt DC source
that enters the unit via the metallic conductors. This method
allows the use of hybrid fiber/copper fiber assemblies to both
interconnect the SDI signals and provide power to the camera
end unit. A variety of fiber/copper cable assemblies can be
used. For example, one major vendor offers a tactical-grade
cable that has two 16 AWG copper conductors along with
two single-mode fibers. Using a readily-available 48 volt
DC power source located at the truck end, along with this
type of “TAC” cable, an interconnect distance of over 1000
feet (308 meters) is possible. It’s also possible to use SMPTE
Hybrid type of fiber/copper cable assemblies to link the truck
end unit to the camera end unit. The only caveat would be
the need for opticalCON DUO connectors to mate with the
camera end unit.
It is important to note that while the Live-Link Jr. camera
end unit can be powered by hybrid fiber/copper cable assem
-
blies the unit will not provide a power source for connected
cameras or related equipment. The camera end unit is not
capable of converting the 10-50 volt DC input into 12 volts
DC for use by other equipment.
Hybrid Fiber/Copper Interface Kit
An available Live-Link Jr. option makes it simple to support
hybrid fiber/copper cable assemblies. This allows rapid
studio or field-deployment of the camera end unit with power
provided from the location where the truck end unit is
mounted. The kit supplies all the components required for
installation in a fixed or mobile application. Included is a
Neutrik opticalCON DUO connector with its four electrical
contacts and one ground contact pre-wired to an interface
cable and associated power entry printed circuit board. This
panel-mounted (“bulkhead”) connector is mounted into a
designated XLR-standard “D” opening in an I/O or rack panel.
Also included in the kit is a universal mains input/48 volt DC,
2.5 A, output power supply. Its DC output cable is directly
connected to the power entry circuit board.
The final installation step is to link the two optical ports on
the opticalCON DUO connector to the ST connectors located
on the back panel of the Live-Link Jr. truck end unit. Two
precision LC-to-ST patch cables, 32 feet (10 meters) in length,
are provided for this purpose. Using the hybrid fiber/copper
interface kit and user-supplied fiber assemblies, the supported
interconnect distance will typically be in excess of 1000 feet
(308 meters).
SDI Inputs and Outputs:
Type: unbalanced
Impedance: 75 ohms
Level: 800 mV p-p, nominal
Optical Outputs:
Compliance: SMPTE ST 297:2006
(as applicable)
Fiber Type: single mode
Wavelength: 1310 ±20 nm (FP laser)
Launch Power: –3 dBm, nominal
Typical Fiber Interconnect Length:
10 km minimum
Optical Inputs:
Compliance: SMPTE ST 297:2006
(as applicable)
Fiber Type: single mode
Wavelengths Supported: 1250 to 1650 nm
Receive Sensitivity: –17 dBm, nominal @
2.97 Gb/s
Maximum Input Power: –3 dBm, nominal
Audio, Mic/Line Input to Mic/Line
Output:
Frequency Response: +0/–0.35 dB,
20 Hz to 20 kHz
Distortion (THD+N): 0.003%, measured
at 1 kHz
Dynamic Range: 109 dB
Audio, Line/IFB Input to Line Output:
Frequency Response: ±1 dB, 20 Hz to
20 kHz
Distortion (THD+N): 0.01%, measured
at 1 kHz
Dynamic Range: 101 dB
Audio, 4-Wire Input to Party-Line
Intercom Pin 3:
Frequency Response: ±1.25 dB, 100 Hz
to 10 kHz (band limited for optimal
performance)
Distortion (THD+N): 0.02%, measured
at 1 kHz
Dynamic Range: 99 dB
Party-Line Hybrids:
Topology: 3-section analog circuitry
compensates for resistive, inductive, and
capacitive 2-wire party-line loads
Nulling Method: automatic upon user
initiation, processor implements digital
control of analog circuitry; settings stored
in non-volatile memory
Nulling Line Impedance Range: 120 to
240 ohms
Trans-Hybrid Loss: >45 dB, typical at
1 kHz