8 Chanel HD SDI Over Fiber
Transmitter and
Reciever Extender
User Manual
L-8
SDI-FE-HD-TX/RX
Contents
CHAPTER 1. INTRODUCTION ........................................................................................................... 2
1.1 OVERVIEW ........................................................................................................................................2
1.2 FEATURE ..........................................................................................................................................2
1.3 APPLICATION .....................................................................................................................................3
CHAPTER 2.
L-8SDI-FE-HD-TX/RX DESKTOP EQUIPMENT ........................................................... 4
2.1 FRONT PANEL ...................................................................................................................................4
2.2 REAR PANEL .....................................................................................................................................7
CHAPTER 3.
L-8SDI-FE-HD-TX/RX RACK MOUNTING CHASSIS .................................................. 8
3.1L-8SDI-FE-HD-TX/RX RACKPANEL ..........................................................................................................8
CHAPTER 4. TECHNICAL SPECIFICATION ................................................................................... .10
CHAPTER 5. NTSC/PAL CONFIGURATION .................................................................................... 12
APPENDIX1 SERIAL MANAGEMENT INTERFACE（CONSOLE） ................................................... 14
L-8SDI-FE-HD-TX/RX
SDI Over Fiber User Manual
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Chapter 1. Introduction
1.1 Overview
The L-8SDI-FE-HD-TX/RX is a high performance, and reliable, 8-channel HD-SDI video optical transceiver,
which perform real-time, loss-free and high-quality HD/SD-SDI transmission（audio embedded) over an
optical line. Besides, L-8SDI-FE-HD-TX/RX provides one bi-directional RS485 data channel, and optional
audio/contact closure/RS422/RS232 data transmission, which can be widely used in TV live broadcast, high-
definition video conference,
high-definition video monitoring, intelligent transportation system and public security system.
The L-8SDI-FE-HD-TX/RX includes desktop equipment and rack mounting chassis, the desktop equipment
includes a transmitter named L-8SDI-FE-HD-TX and a receiver named L-8SDI-FE-HD-RX. The rack
mounting chassis is used as the centralized HD-SDI receiver, adopts chassis with 19 inch width, 4U height
1.2 Feature
Comply with SMPTE-292M HD-SDI and SMPTE-259M SD-SDI standard, supports 1.485Gb/s and
270Mb/s
L-8SDI-FE-HD-TX: 8 HD/SD-SDI inputs (BNC)
L-8SDI-FE-HD-RX:8 HD/SD-SDI outputs(BNC)
Each SDI channel includes 2-channel audio embedded
One bi-directional RS485 channel, half duplex, up to 115.2Kb/s baud rate
Two auxiliary channels, which can be audio, RS422 , or RS232 channel
Supports 1080P@30,25,24, 29.97, 23.98、1080I@60,50,59.94、720P@60,50,30,25,24, 59.94, 29.97,
23.98 and 625i、525i format
With integrated cable equalizer
Embedded ESD and surge protection circuit to prevent damage from static and thunder
With NOP (No optical signal) alarm indications, output status indicator and input lock indicator
With APC circuit to perform stable optical power
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1.3 Application
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Chapter 2. L-8SDI-FE-HD-TX/RX Desktop Equipment
2.1 Front Panel
OPT
A B
RS485
ACTIN1
IN2
IN3
IN4
NOP
HD-SDI
AUX1
RUN
IN5
IN6
IN7
IN8
HD-SDI
AUX2
1 2 3 4
1 2 3 4
5
5
Figure 2-1-1 L-8SDI-FE-HD-TX Front Panel
OPT
A B
RS485
ACTOUT1
OUT2
OUT3
OUT4
NOP
HD-SDI
AUX1
RUN
OUT5
OUT6
OUT7
OUT8
HD-SDI
AUX2
1 2 3 4
1 2 3 4
5
5
Figure 2-1-2 L-8SDI-FE-HD-RX Front Panel
Table 2-1-1 Interfaces on L-8SDI-FE-HD-TX/RX front Panel
Name
Description
OPT
Optical interface, bi-directional, adopts FC connector
HD-SDI
IN [1:8]
HD-SDI input 1~8
OUT [1:8]
HD-SDI output1~8
RS485
RS485 interface, adopts PHOENIX connector
A
RS485 differential signal A
B
RS485 differential signal B
AUX1
Auxiliary channel, all the interfaces listed in table 2-1-3 are supported, and both
bi-directional and unidirectional interfaces are supported. Refer to table 2-1-3 for
more.
AUX2
Auxiliary channel, all the interfaces listed in table 2-1-3 are supported, but only
unidirectional interfaces are supported. For example, AUX204 in AUX2 for RS485,
only unidirectional RS485 from transmitter AUX2 input to receiver AUX2 output can
be supported. Refer to table 2-1-3 for more.
Note: if the auxiliary channel is used as the audio channel, the embedded audio channel in the HD-SDI
signal will be unavailable.
Table 2-1-2 Indicators on L-8SDI-FE-HD-TX/RX front panel
Name
Description
NOP
Optical signal loss alarm indicator, red.
ON: Optical signal loss is detected at the port.
OFF: the optical port receive normal signal.
RUN
Running indicator, green.
Normal blink: works normally
OFF: Abnormal.
IN [1：8]
The HD-SDI input lock indicator, green.
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ON: video input normally.
OFF: video input abnormally.
OUT[1：8]
The SD/ HD-SDI output status indicator, green.
ON: output normally.
OFF: output abnormally.
ACT
RS485 link indicator, green.
Blink: There are data transmitting and receiving;
OFF: No data transmit or receive;
Table 2-1-3 AUX interface
AUX interface
No.
Name
Description
2-channel
bi-directional audio
(AUX206)
1
AOUT1
Audio channel -1 output
2
AOUT2
Audio channel -2 output
3 G Ground
4
AIN1
Audio channel -1 input
5
AIN2
Audio channel -2 input
4-channel forward
audio input
(AUX211)
1
AIN1
Audio channel -1 input
2
AIN2
Audio channel -2 input
3 G Ground
4
AIN3
Audio channel -3 input
5
AIN4
Audio channel -4 input
4-channel backward
audio
Output
(AUX212)
1
AOUT1
Audio channel -1 output
2
AOUT2
Audio channel -2 output
3 G Ground
4
AOUT3
Audio channel -3 output
5
AOUT4
Audio channel -4 output
4-channel backward
audio
Output
(AUX207)
AOUT1
Audio channel -1 output
AOUT2
Audio channel -2 output
G
Ground
--
--
--
--
4-channel backward
audio
input
(AUX208)
AIN1
Audio channel -1 input
AIN1
Audio channel -2 input
G
Ground
--
--
--
--
2-channel contact
closure output
(AUX200)
1
NC0
The first channel contact closure output
No alarm: the contact is normally-closed (NC)
Alarm: the contact is open
2
COM0
Command contact of the first channel contact closure
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3
NC1
The second channel contact closure output
No alarm: the contact is normally-closed (NC)
Alarm: the contact is open
4
COM1
Command contact of the second channel contact closure
5
--
--
2-channel contact
closure input
(AUX201)
1
K0
The first channel contact closure input
2
COM0
Command contact of the first channel contact closure
3
K1
The second channel contact closure input
4
COM1
Command contact of the second channel contact closure
5
--
--
1-channel
bi-directional RS422/
2-channel
bi-directional RS485
AUX204(T side)
1
TXA(T/
RXA1)
RS422 differential signal A output/ RS485 channel-1
differential signal A
2
TXB(T/
RXB1)
RS422 differential signal B output/ RS485 channel-1
differential signal B
3
RXA(T/
RXA2)
RS422 differential signal A input/ RS485 channel-2
differential signal A
4
RXB(T/
RXB2)
RS422 differential signal B input/ RS485 channel-2
differential signal B
5 G Ground
1-channel
bi-directional RS422/
2-channel
bi-directional RS485
AUX204(R side)
1
RXA(T/
RXA1)
RS422 differential signal A input/ RS485 channel-1
differential signal A
2
RXB(T/
RXB1)
RS422 differential signal B input/ RS485 channel-1
differential signal B
3
TXA(T/
RXA2)
RS422 differential signal A output/ RS485 channel-2
differential signal A
4
TXB(T/
RXB2)
RS422 differential signal B output/ RS485 channel-2
differential signal B
5 G Ground
2-channel
bi-directional RS232
(AUX205)
1
TX1
RS232 signal output 1
2
RX1
RS232 signal input 1
3 G Ground
4
TX2
RS232 signal output 2
5
RX2
RS232 signal input 2
Note1: The AUX interface of L-8SDI-FE-HD-TX/RX are used in pairs, e.g. if L-8SDI-FE-HD-TX use 4channel unidirectional audio output interface, L-8SDI-FE-HD-RX should use 4-channel unidirectional audio
input interface.
Note2: If the auxiliary channel is used as the audio channel, the embedded audio channel in the HD-SDI
signal will be unavailable.
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2.2 Rear Panel
DC12V
Figure 2-2-1 L-8SDI-FE-HD-TX/RX Rear Panel
Table 2-2-1 L-8SDI-FE-HD-TX/RX Rear Panel
Name
Description
DC12V
DC 12V power input interface
Adopts AC220V/DC12V power adapter, provides 12V power supply
Protective ground (PGND) screw, connect with the chassis.
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Chapter 3. L-8SDI-FE-HD-RX Rack mounting chassis
Rack mounting chassis is 19 inch width, 4U height, with eight 8-channel HD-SDI optical receive cards
L-8SDI-FE-HD-RX RACK. Besides, the rack mounting chassis has 3 fans and 2 power modules, supports
redundant power protection.
Table 3-1 Card list of rack mounting chassis
Name
Module
Description
Slot
Remote
8-channel HD-SDI
optical receive card
L-8SDI-FEHD-RX
RACK
8 HD-SDI output interfaces, one RS485
interface and one auxiliary channel.
1-16
L-8SDIFE-HDTX
-48V DC power card PWR100DC
-48V DC power input, +12V power output. The
power consumption is 100W, supports power
management control.
Specific
power
card slot
-
220V AC power card PWR100AC
~220VAC power input, +12V power output. The
power consumption is 100W, supports power
management control.
-
Note: The HD-SDI optical receive card supports hot-pluggable, which won't affect other working cards.
3.1 L-8SDI-FE-HD-TX/RX RACK panel
A B
RS485
ACT
OUT1
OUT2
OUT3
OUT4
HD-SDI
AUX1
1 2
3 4
OUT5
OUT6
OUT7
OUT8
HD-SDI
AUX2
1 2
3 4
OPT
NOP
RUN
5
5
Figure 3-1-1 L-8SDI-FE-HD-RX RACK panel
The panel description of L-8SDI-FE-HD-RX RACK is the same with that of L-8SDI-FE-HD-RX, refer
to section 2.1 for more.
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3.3 The rear view of rack mounting chassis
ON
OFF
220VIN
-48V
GND PGND
ON
OFF
-48VIN
Figure 3-2-1 The rear view of rack mounting chassis
Table 3-2-1 The rear view of rack mounting chassis
Name
Description
-48VIN
-48VDC power interface, the voltage range：-36~-72V。
PGND
Protective ground (PGND) screw, connect with the chassis.
GND
-48V power ground
220VIN
~220V AC power interface, the voltage range:176~264V
Power switch
“ON”: Power On; “OFF”: Power Off.
Protective ground (PGND) screw, connect with the chassis.
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Chapter 4. Technical Specification
Table 4-1 Technical Specification
Item
Typical value
SDI Interface
Connector
BNC
Bit rate
1.485Gb/s and 270Mb/s auto adaptive
Impedance
75Ω
Return loss
>15dB
Output level
800mVp-p±10%
Rise and fall time（HD-SDI）
≤270ps
Rise and fall time（SD-SDI）
≤1.50ns
SD-SDI Alignment jitter (1KHz)
≤0.2UI
SD-SDI Timing jitter (10Hz)
<0.2UI
HD-SDI Alignment jitter (100KHz)
≤0.2UI
HD-SDI Timing jitter (10Hz)
<1.0UI
Standard
Comply to SMPTE-292M HD-SDI and SMPTE-259M
SD-SDI standard
Audio Interface (Optional)
Connector
PHOENIX connector
Impedance
Input high-impedance, output 600Ω
Quantization grade
20bits
Sample frequency
48KHz
Audio input/output voltage
2VP-P
Bandwidth
20Hz~20KHz
Total Harmonic Distortion
0.1%
RS485 Interface
Connector
PHOENIX connector
Baud rate
0~115.2Kb/s
Bit error ratio
<10-9
Duplex
Half-duplex
CONSOLE Interface
Connector
RJ45
Baud rate
19200
bits
8
Stop bit
1
parity check
None
EMU/EMU-EX Interface
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Connector
RJ45
Bit rate
10Mb/s or 100Mb/s auto adaptive
Power and Consumption for desktop equipment
Power supply
DC 12V
DC input voltage range
8V~14V
Power consumption
3W±10％
Power and Consumption for rack mounting chassis
Power supply
AC 220V /DC-48V
DC input voltage range
-36～-72V DC
AC input voltage range
176~264V
Power consumption for each card
3W±10％
Environment Requirements
Working temperature
-30～60℃
Relative Humidity
≤95％, no condensation
Storage temperature
-40～85℃
Equipment dimension
Dimension of Rack mounting chassis
（with rack ear）
330mm x 178mm x 482mm
Desktop equipment dimension
434mm×44mm×155mm
Note: The optical module is optional for users, the default is 20Km, other long distance needs to be declared when
ordering.
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Chapter 5. NTSC/PAL Configuration
The transmitter can automatically detect the HD-SDI/SD-SDI standard of the input video, the receiver supports a
PAL/NTSC dial switch to configure the standard of the output video. When the input video is 1080P@30,25,24,
1080I@60,50, 720P@60,50,30,25,24, the receiver should be configured as PAL; when the input video is
1080P@29.97, 23.98, 1080I@59.94, 720P@59.94, 29.97, 23.98, the receiver should be configured as NTSC;
when the input video is 625i, 525i i.e. SD-SDI, both the PAL and NTSC are OK on the receiver.
Figure 5-1 The dial switch for PAL/NTSC standard and embedded audio
When the input video is 625i, 525i i.e. SD-SDI, the audio embedded in the SD-SDI can be tramsmitted to the
receiver transparantly. When the input video is HD-SDI, if there is AUX audio interface, the audio signal is
transmitted between the AUX audio interface and the audio embedded in the HD-SDI is muted; if there is not AUX
audio interface, the audio embedded in the HD-SDI can be transmitted. Only in the last case above, the HD MUTE
dial switch is valid: NORMAL means the audio embedded in the output video is normal, and HD MUTE means the
output video is muted.
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Appendix1 Serial management interface（CONSOLE）
Table A-1 Pin description of CONSOLE interface
Pin
Definition
Remarks
PIN1
-
Null
PIN2
-
Null
PIN3
-
Null
PIN4
-
Null
PIN5
-
Null
PIN6
GND
Ground
PIN7
RSNM-IN
Serial network management channel input
PIN8
RSNM-OUT
Serial network management channel output
The CONSOLE cable adopts RJ45 connector at one end to connect the front panel of equipment, and DB9
connector at the other end to connect PC, the diagram is as Fig. A-1-1, Fig.A-1-2 shows:
Figure A-1-1 RJ45 connector
Figure A-1-2 Connection
1
8
8
1
7 RX
8 TX
6 GND
2 RX
3 TX
5 GND
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Read before operating equipment.
1. Cleaning - Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp
cloth for cleaning.
2. Power Sources - Use supplied or equivalent UL/CSA approved low voltage DC plug-in transformer.
3. Outdoor Antenna Grounding - If you connect an outside antenna or cable system to the product, be sure the antenna or cable
system is grounded so as to provide some protection against voltage surges and built-up static charges. Section 810 of the
National Electrical Code, ANSI/NFPA No. 70, provides information with respect to proper grounding of the mast and supporting
structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna
discharge unit, connection to grounding electrodes, and requirements for the grounding electrode.
4. Lightning - Avoid installation or reconfiguration of wiring during lightning activity.
5. Power Lines - Do not locate an outside antenna system near overhead power lines or other electric light or power circuits or where
it can fall into such power lines or circuits. When installing an outside antenna system, refrain from touching such power lines or
circuits, as contact with them might be fatal.
6. Overloading - Do not overload wall outlets and extension cords as this can result in a risk of fire or electric shock.
7. Object and Liquid Entry - Never push objects of any kind into this product through openings as they may touch dangerous voltage
points or short out parts, resulting in a fire or electric shock. Never spill liquid of any kind on the product.
8. Servicing - Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous voltage or
other hazards. Refer all servicing to qualified service personnel.
9. Damage Requiring Service - Unplug this product from the wall outlet and refer servicing to qualified service personnel under the
following conditions:
When the power supply cord or plug is damaged.
If liquid spills or objects fall into the product.
If the product is exposed to rain or water.
If the product does not operate normally by following the operating instructions. Adjust only those controls that are
covered by the operating instructions. An improper adjustment of other controls may result in damage and will often
require extensive work by a qualified technician to restore the product to its normal operation.
If the video product is dropped or the cabinet is damaged.
When the video product exhibits a distinct change in performance, this indicates a need for service.
Safety Instructions
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This unit outputs continuous invisible light, which may be harmful to the
eyes; use with caution. For additional safety, plug the attached dust caps
into the optical transceivers when the fiber optic cable is unplugged.
Direct viewing into optical connectors should be avoided at all times!
WARNING!
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