ROBOfiber RB-4KHDMI Series User manual

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RB-4KHDMI series
4K HDMI Uncompressed Video Converter
User’s manual (please read before installation)
1. Description
The RB-4KHDMI video digital optical converter uses an
all-digital fiber technology that allows transmission of 4K
uncompressed HDMI video signal over two fiber optic
strands only at high-quality and for long reaches.
RB-4KHDMI offers transport of a single high-definition
HDMI interface over fiber optic. If two fiber strands are
used, converter also provides a bidirectional RS-232
interface path for control signals. The single port series
converters can also be installed in a 16 slot 19”, 2RU
chassis with redundant AC power supplies. RB-4KHDMI is
backward compatible with DVI video signal.
2. Technical Specifications
HDMI input/output
Video interface
HDMI
Video resolution
4096×2160@30Hz or
1080p@120Hz
Video standard
HDMI 1.4, HDMI 1.2a
Fiber interface
Optical connectors
Dual LC (can operate over one
strand without RS232 interface)
Operating distance SMF
20Km (40Km or 60Km by demand
only)
Operating distance MMF
300 meters
Optical Tx Power
-5dBm (either MMF or SMF)
Optical Rx Sensitivity
-12dBm for MMF and -18dBm for
SMF
EDID
supported
Data
TDMS signal I/O
1.2Vp-p
DC signal input
5V p-p (TTL)
Interface Type
RS232/Manchester
Baud Rate
0-400Kbps
BER
< 10 -9
Operation Mode
Full duplex / half duplex
Operating parameters
Input power
AC 100-240V(adapter), DC12V/2A
converter
Power consumption
10W
Work Temp
-10°C to 70°C
Storage Temp
-40°C to 85°C
Humidity
0 ~ 95% (non-condensing)
3. LED status
LED
Description
FIBER
ON when fiber link is established
SYS
ON when HDMI video signal is available
PWR
ON when power is present
DATA
ON when data is running through port
4. Installation
Package Contents: Converter, Power Adapter, and this
Manual
Please identify Transmitter and Receiver units in the
RB-4KHDMI package. “-T”ending unit is Transmitter and
must be installed at the source of HDMI signal, “-R”unit
will be installed at receiving end of the HDMI video signal
path.
Please connect optical fiber first and the HDMI copper
connections before powering up the units. Check LED
lights to confirm proper connectivity has been
established. HDMI signal should be available at remote
end.
Only use the power supply provided with the converter
unit. Power adapter provides stable and filtered power
for the fiber converters; if adapter is lost please contact
vendor for a replacement part. A 3rd party AC adapter can
only be used if output voltage, polarity and power jack
connector are identical to the original AC adapter.
Diagram of RB-4KHDMI series installation
5. Safety
Please avoid exposure to water and do not install unit in
high humidity areas. Make sure all connectors (optical
and copper) are properly secured.
Please verify that power supplied is matching the input
required for operation:
- for AC adapter input：100~240V, 50~60Hz

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- for DC input：12V/1A
Stop using devices if they have been exposed to water or
mechanical shocks affecting the physical form of the
units.
6. Troubleshooting
The RB-4KHDMI series converters are simple plug and
play devices. There are very few adjustments to be made
for proper operation. Check below list for potential
adjustments:
- no light on POWER LED: please check power sources,
make sure AC power is available and properly connected.
Replace AC adapter with a similar one
-no light on SYS LED: please check copper HDMI
connections
connectivity: each SYS LED reflects local copper
connection; make sure each SYS LED is ON, the end
without SDI LED “ON”should be reset with a power cycle.
If connectivity is proper and LED is not turning on, please
use a different RB-4KHDMI unit
- video quality: too much fiber attenuation or
weak/improper copper HDMI connectivity. Multiple
potential causes:
▪normal fiber attenuation due to too long fiber
circuit or improper high attenuation fiber
splicing: please measure total fiber attenuation
with an OPM (optical power meter) and OLS
(optical laser source) to determine the level of
optical attenuation on your fiber circuit. If local
splicing is bad, replace or redo the fiber splices
▪fiber attenuation caused by fiber overbending:
please observe fiber path and reduce bends in
the fiber run
▪fiber attenuation caused by dirty optical
connectors: clean connectors with a fiber
cleaning pen (female) or fiber cleaning cassette
(male)
▪improper copper HDMI connectivity: please
check quality of copper wiring
▪AC power interference: please avoid running AC
lines over or under the fiber extenders. Make
sure the AC power lines have proper grounding.
AC “noise”can affect quality of video signal
7. Models available
The RB-4KHDMI series single port HDMI over fiber has
following models available (fiber type and reach)
Part Number
Description
RB-4KHDMI-T
Transmitter unit for MM/SM fiber up to 10Km
RB-4KHDMI-R
Receiver unit for MM/SM fiber up to 10Km
All RB-4KHDMI series have dual LC/UPC optical
connectors.
Recommended 19”chassis installation is the
RB-CH16-AA unit.