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Audio Video Systems
SDI
Lightem Systems digital video fiber optic transmission system transmits 4 SD SD (143M/177M /270M/360M/540Mbps) standard definition digital video and 1 10/100/1000Mbps ethernet through one single mode fiber or multimode fiber.
1Ch (2) SDI digital video and Max4 (8) Ch analog audio or AES/EBU fiber system
LDMB
Lightem Systems LDMB series digital video and analog audio or AES/EBU digital audio fiber optic transmission system transmits X SD -SDI(143M/177M/270M/360M/540Mbps) standard definition digital video and up to X analog audio or AES/EBU digital audio over one single mode fiber or multimode fiber. Lightem Systems LDMB series transmitter provides X SDI and X analog audio or X AES/EBU digital audio input, and one SDI loop-through for local monitoring. The receiver outputs two 2-way parallel SDI digital video and X analog audio or X AES/EBU digital audio.
Thanks for the auto-cable equalization, cable driver circuit and signal jitter elimination circuit, high quality signal transmission over long distance fiber cable is realized.
Features
- Compliant with the standards of SMPTE259M, SMPTE297M, SMPTE310M, SMPTE305M (SDTI), SMPTE344M
- Compliant with the standard of DVB-ASI(EN50083-9)
- Auto adaption to the speed of SDI 143M,177M,270M,360M,540Mbps
- With automatic cable equalization function, compensation for cable transmission loss
- X SDI digital video, up to 8 analog audio channels, or up to 8 channels AES/EBU digital audio
- Convenient instructions of LED status, data rate, optical signal, power etc.
- A variety of installation options: 15-slot rack，particularly suitable for large volume optical transmission platform construction, and also available for
- 4-slot rack, 2-slot rack and single-slot rack, fixed 1RU 19-inch enclosure box.
Specifications
| Parameters | Values | ||
|---|---|---|---|
|
HD-SDI input |
|
Audio output |
|
|
Signal Standard
|
SMPTE292M, SMPTE259M, SMPTE297M, SMPTE305M, SMPTE310M, DVB-ASI |
Channel |
2 |
|
Channel Number
|
1 plus 1 loop-through |
Signal resolution |
20 bits |
|
Data rate |
19.4Mbps to 1485Mbps |
Frequency response |
|
|
Resolution |
10 bit |
Operating mode
|
Balanced or unbalanced |
|
Signal Level |
>380mVp-p |
Max output level |
17.4Vp-p(+18dBm) |
|
Auto-Cable Equalization |
>[email protected], (Belden 1694A cable) |
SNR(weighted) |
>90dB |
|
|
>350m@270Mbps, (Belden 1694A cable) |
THD |
<0.2% |
|
Input Return Loss |
>10dB@1485Mbps
|
Physical |
|
|
Impedance |
75Ω |
Dimension(H×W×D) |
44×433×340(mm) |
|
Connector
|
BNC |
Dual power supply |
130-260VAC, 50/60Hz |
|
HD-SDI Output
|
|
Power consumption |
<10W |
|
Channel
|
2 |
Operating temperature |
0~50°C |
|
Signal Level
|
800mVp-p±10% |
Relative humidity |
0-95%, Non-condensing
|
|
Rise/Fall time
|
<0.8ns |
LED status indicator |
Power, optical link, video activity |
|
HD-SDI Jitter |
<0.2UI(134ps)@100KHz /
<1.0UI(673ps)@10Hz |
Fiber optic link
|
|
|
SDI Jitter |
<0.2UI(740ps)@10Hz /
<0.2UI(740ps)@1KHz |
Fiber type |
Single mode |
|
Audio input |
|
Number of fiber |
1 |
|
Signal resolution |
20 bits |
Wavelength |
1310nm/1550nm |
|
Frequency response |
Distance |
0-40km, or 0-80km, or 0-100km optional |
|
|
Operating mode |
Balanced or unbalanced |
Connector |
FC/PC, or SC/PC |
SDI/ASI Digital Video fiber System
LSDASI
Lightem Systems LSDASI digital video fiber optic transmission system transmits X SD-SDI (143M/177M/270M/360M/540Mbps) standard definition digital video through one single mode fiber or multimode fiber with the standards of SMPTE259M, SMPTE297M, SMPTE310M, SMPTE305M (SDTI), or transmit X digital video signal with the standard of DVB-ASI stream. The converter provides X SDI/ASI input, and X loop-through for local monitoring, and the receiver outputs X-way parallel SDI/ASI digital video.
Features
- SDI/ASI signal auto recognition
- Compliant with the standards of SMPTE259M, SMPTE297M, SMPTE310M, SMPTE305M (SDTI), SMPTE344M
- Compliant with the standard of DVB-ASI(EN50083-9)
- Auto adaption to the speed of SDI 143M,177M,270M,360M,540Mbps, or DVB-ASI
- A variety of installation options: 15-slot rack，16-slot rack, particularly suitable for large volume optical transmission platform construction, and also available for 4-slot rack, 2-slot rack and single-slot rack, fixed 1RU 19 inch enclosure box.
Specifications
| Model | LSDASI | LSDASI-2 | LSDASI-4 | LSDASI-8 |
|---|---|---|---|---|
|
HD-SDI input |
|
|||
|
Signal Standard
|
SMPTE292M, SMPTE259M, SMPTE297M, SMPTE305M, SMPTE310M, DVB-ASI |
|||
|
Channel Number
|
1 |
2 |
4 |
8 |
|
Data rate |
19.4Mbps to 1485Mbps |
|||
|
Resolution |
10 bit |
|||
|
Signal Level |
>380mVp-p |
|||
|
Auto-Cable Equalization |
>[email protected], (Belden 1694A cable) |
|||
|
|
>350m@270Mbps, (Belden 1694A cable |
|||
|
Input Return Loss |
>10dB@1485Mbps |
|||
|
Impedance |
75Ω |
|||
|
Connector
|
BNC |
|||
|
HD-SDI Output
|
|
|||
|
Channel
|
2 |
4 |
8 |
16 |
|
Signal Level
|
800mVp-p±10% |
|||
|
HD Rise/Fall time
|
<270ps@1485Mbps |
|||
|
SDI Rise/Fall time |
<0.6ns@270Mbps |
|||
|
HD-SDI Jitter |
<0.2UI(134ps)@100KHz /
<1.0UI(673ps)@10Hz |
|||
|
SDI Jitter |
<0.2UI(740ps)@10Hz / <0.2UI(740ps)@1KHz |
|||
|
Impedance
|
75Ω |
|||
|
Connector |
BNC |
|||
|
Physical |
Content |
|||
|
Dimension(H×W×D) |
44×433×340 mm |
|||
|
Power supply |
130-260VAC, 50/60Hz |
|||
|
Power consumption |
<10W |
|||
|
Operating Temperature |
0 to +50 °C |
|||
|
Relative Humidity |
0 to 95% RH Non-condensing |
|||
|
LED Status Indicator |
Power, Optical Link, Video Activity |
|||
|
Optical |
|
|||
|
Fiber Type |
Single mode or multimode |
|||
|
Number of fiber |
1 |
1 or 2 |
1 or 4 |
1 or 8 |
|
Wavelength |
1310/1550 |
|||
|
Distance |
0-40km, or 0-80km, or 0-100km optional |
|||
|
Connector |
FC/PC or SC/PC |
|||
SDI to Analog Video Converter
LSC-SDIAV
Lightem Systems LSC series SDI to analog video converter converts SDI digital video to analog video with broadcasting quality and is over 250C short haul technical specification. It is a suitable for applications in TV station, CMMB,IPTV, mobile TV, mobile phone TV, telecommunication operators, government video conference system and other new media field.
Features
- Compliant with the standards of SMPTE259M, SMPTE297M, SMPTE305M, SMPTE310M,
- Auto adaption to the speed of SDI 143M, 177M, 270M, 360M, 540Mbps
- Automatic cable equalization function, signal re clocking
Specifications
| Parameters | Values | Parameters | Values |
|---|---|---|---|
|
SDI Digital Video Input |
|
Analog audio output |
|
|
Signal Standard
|
SMPTE424M, SMPTE292M, SMPTE259M, SMPTE297M, SMPTE305M, SMPTE310M |
Channel |
2 |
|
Number of Input |
1 |
Frequency response |
|
|
Signal Level |
>380mVp-p |
SNR |
>88dB |
|
Auto-Cable Equalization |
>100m@2970Mbps, (Belden 1694A cable) /
>200m@1485Mbps, (Belden 1694A cable) |
Max level |
17.4Vp-p(+18dBm) |
|
Input Return Loss |
>10dB@2970Mbps |
Isolation |
>90dB@1KHz |
|
Impedance
|
75Ω |
|
>90dB@20KHz |
|
Connector
|
BNC |
Output impedance
|
Small resistance
|
|
Analog video output
|
|
Connector
|
XLR |
|
Signal standard
|
PAL 525/625 Lines
|
Physical |
|
|
Channel
|
1 |
Dimension(H×W×D, mm)
|
44×176×221.2(mm)
|
|
Output level |
1.0Vp-p@75Ω |
Power Supply |
130-260VAC, 50/60Hz |
|
Color delay
|
< 10ns |
Operation temperature
|
0-50°C |
|
Differential gain
|
< 1.0% |
Relative humidity |
0-95%, non-condensing |
|
Differential phase |
< 0.7 degree |
LED status indicator |
Power, video activity |
|
SNR(weighted)
|
> 70dB |
Impedance
|
75Ω |
ASI/SDI Distributor
LASDD14
LASDD14 ASI/SDI Distributor is one of the portable distributor which can distribute 1 ASI/SDI signal into 4 ASI/SDI signals. The distributor embeds adaptive re-clocking and equalized circuits which effectively recover the affection of the all kinds of cable attenuation and interference. The device fully complies with DVB-ASI and SDI standards and can be widely used in all kinds of DTV system.
Features
- Standard ASI Input/output supported
- Input signal poises automatically
- Re-clocking automatically
- Anti-static design
- Portable and convenient
Specifications
| Parameters | Values | ||
|---|---|---|---|
|
Mpeg TS Input – 1ASI input |
BNC 75Ohm |
||
|
|
ASI fully comply to EN 50083-9 |
||
|
ASI bite rate |
270Mbps |
||
|
Return loss |
>17dB |
||
|
Auto cable equalization |
180pbs@270MHz(200m Coaxial Cable) |
||
|
Auto re-clock |
130pbs@270MHz |
||
|
MPEG TS Output |
|
||
|
4 ASI Output |
BNC 75Ohm |
||
|
|
ASI comply to EN50083-9 |
||
|
ASI bite rate |
270Mbps |
||
|
Return loss |
>17dB |
||
|
Mechanical Parameter |
|
||
|
Power Supply |
9V 500mA |
||
|
Operating Temperature |
-10~+45°C |
||
|
Humidity |
10%~95% |
||
|
Dimension |
140 x 84 x 28mm |
||
|
Weight |
1 kg |
||
4 SDI Digital Video plus IP fiber System
LSDASI-4-E
Lightem Systems LSDASI-4-E digital video fiber optic transmission system transmits 4 SD-SDI(143M/177M/270M/360M/540Mbps) standard definition digital video and 1 10/100/1000Mbps ethernet through one single mode fiber or multimode fiber with the standards of SMPTE259M, SMPTE297M, SMPTE310M, SMPTE305M (SDTI), or transmit 4 digital video signal with the standard of DVB-ASI stream. The converter provides 4 SDI/ASI input, and the receiver outputs 4-way parallel SDI/ASI digital video.
Features
- SDI/ASI signal auto recognition
- Compliant with the standards of SMPTE259M, SMPTE297M, SMPTE310M, SMPTE305M (SDTI), SMPTE344M
- Compliant with the standard of DVB-ASI(EN50083-9)
- Auto adaption to the speed of SDI 143M,177M,270M,360M,540Mbps, or DVB-ASI
- Support gigabit Ethernet network, IEEE 802.3 standard
Specifications
| Parameters | Values | Parameters | Values |
|---|---|---|---|
|
SDI/ASI Input |
|
Ethernet Network |
|
|
Signal Standard
|
SMPTE259M, SMPTE297M, SMPTE310, SMPTE305(SDTI), DVB-ASI(EN50083-9) |
Standard |
IEEE 802.3 |
|
Number of Input |
4 |
Data rate |
10/100/1000Mbps auto sense |
|
Resolution |
10 bit |
Auto Negotiation |
Support |
|
Signal Level
|
>380mVp-p
|
Work mode |
Full-duplex or half-duplex |
|
Auto-Cable Equalisation
|
>250m(270Mbps) (BELDEN8281 Cable) |
Auto-cross
|
Support |
|
Return Loss |
>16dB (270Mbps) |
Connector |
RJ45 |
|
Impedance
|
75Ω
|
LED Indicators |
Data rate, fiber optic |
|
Connector |
BNC |
Physical
|
|
|
SDI/ASI Output |
|
Dimension(HxWxD, mm) 19-inch 1RU
|
44×433×340 mm |
|
Number of Output |
4 |
Power Supply |
30 – 255VAC，50-60Hz |
|
Signal Level |
800mVp-p±10%
|
Power Consumption |
<10W |
|
Rise/Fall Time |
<0.65ns |
Operation temperature
|
0 to +70°C
|
|
SDI Jitter |
<0.2UI(740ps)@10Hz / <0.2UI(740ps)@1kHz |
Relative humidity |
0-95%, non-condensing |
|
Impedance |
75 ohm |
LED status indicator |
Power, video activity |
|
Connector |
BNC |
|
|
|
Optical |
|
Fiber Type |
Single mode or multimode |
|
Number of fiber
|
1 |
Wavelength |
1310/1550 |
|
Distance |
upto 120 km |
Connector |
FC/PC |
SDI/ASI Digital Video Splitter
LSDASVS
Lightem Systems LSDASVS series SDI/ASI digital video splitter is a distribution unit with one SDI / ASI digital stream, 4 or 8 SDI digital video or ASI digital stream outputs.
Features
- SDI/ASI signal auto recognition
- Compliant with the standards of SMPTE259M, SMPTE297M, SMPTE310M, SMPTE305M (SDTI), SMPTE344M
- Compliant with the standard of DVB-ASI(EN50083-9)
- Auto adaption to the speed of SDI 143M,177M,270M,360M,540Mbps, or DVB-ASI
- Support gigabit Ethernet network, IEEE 802.3 standard
Specifications
| Parameters | Values | Parameters | Values |
|---|---|---|---|
|
SDI/ASI Input |
|
Ethernet Network |
|
|
Signal Standard
|
SMPTE259M, SMPTE297M, SMPTE310, SMPTE305(SDTI), DVB-ASI(EN50083-9) |
Standard |
IEEE 802.3 |
|
Number of Input |
4 |
Data rate |
10/100/1000Mbps auto sense |
|
Resolution |
10 bit |
Auto Negotiation |
Support |
|
Signal Level
|
>380mVp-p
|
Work mode |
Full-duplex or half-duplex |
|
Auto-Cable Equalisation
|
>250m(270Mbps) (BELDEN8281 Cable) |
Auto-cross
|
Support |
|
Return Loss |
>16dB (270Mbps) |
Connector |
RJ45 |
|
Impedance
|
75Ω
|
LED Indicators |
Data rate, fiber optic |
|
Connector |
BNC |
Physical
|
|
|
SDI/ASI Output |
|
Dimension(HxWxD, mm) 19-inch 1RU
|
44×433×340 mm |
|
Number of Output |
4 |
Power Supply |
30 – 255VAC，50-60Hz |
|
Signal Level |
800mVp-p±10%
|
Power Consumption |
<10W |
|
Rise/Fall Time |
<0.65ns |
Operation temperature
|
0 to +70°C
|
|
SDI Jitter |
<0.2UI(740ps)@10Hz / <0.2UI(740ps)@1kHz |
Relative humidity |
0-95%, non-condensing |
|
Impedance |
75 ohm |
LED status indicator |
Power, video activity |
|
Connector |
BNC |
|
|
|
Optical |
|
Fiber Type |
Single mode or multimode |
|
Number of fiber
|
1 |
Wavelength |
1310/1550 |
|
Distance |
upto 120 km |
Connector |
FC/PC |
SDI Digital Video or Analog Video/Audio or AES/EBU Digital fiber system
LDMC
Lightem Systems LDMC series digital video or analog video(CVBS)with embedded /de-embedded digital or analog audio optic transmission system, with one SDI digital video or one analog video(CVBS、YUV or YC) input , embedding 4 analog audio or 2 AES/EBU digital audio,and one SDI digital video and one analog video(CVBS、YUV or YC) can be output , de-embedding 4 analog audio or 2 AES/EBU digital audio.
Features
- CVBS,YC,YUV,SDI can be selected
- Up to 4 analog audio channels or 2 AES/EBU digital audio embedded/de-embedded
- AGC video,input power 0.6V-1.6V
- Up to 100 km
- 1310 nm,1550 nm,CWDM or DWDM optic transmission mode available
- Support NTSC(525/60),or PAL(625/50) standard (auto sense)
Specifications
| Parameters | Values | Parameters | Values |
|---|---|---|---|
|
Analog Audio Output |
|
Digital Audio AES/EBU Input |
|
|
Number of Input |
4 |
Input Number of Channels |
2 |
|
Operating Mode |
Balance/Unbalance |
Input Level |
0.2 – 7.0Vp-p |
|
Max output Level |
17.4Vp-p@+18dBm |
Sample Frequency |
32KHZ–108KHZ (20/24bit) |
|
Frequency response |
Analog Video |
|
|
|
Digital Audio（AES/EBU）Output |
|
Channel |
1 |
|
Number of Channel |
2 |
Signal Resolution |
10 bits |
|
Output Level |
5Vp-p |
Video Standard |
525/625 Lines |
|
Coding Digit |
20bits or 24bits |
Bandwidth |
10MHz |
|
Sample Frequency |
48KHZ |
Video Level |
0.6–1.6Vp-p |
|
SDI Digital Video Output |
|
SDI Digital Video Input |
|
|
Number of Output Port |
2 |
Number of Channel |
1
|
|
Output Signal Standard |
4:2:2 SMPTE259M(270Mbps) |
SDI Digital Video Input（no audio embedded) |
|
|
Physical |
|
Input Number of Channel |
2 |
|
Dimension |
43(H)×438(W)×230(D)（mm) |
SDI Digital Video loop Output（audio embedded) |
|
|
Power |
95-240VAC @ 0.6A |
Loop-through Number of Port |
2 |
|
Analog Audio Input |
|
Optical Link |
|
|
Input Number of Channels |
4 |
Wavelength |
1310nm or 1550nm |
|
Max Input Level |
17.4VP-P(+18dBm) |
Transmission Distance |
0-100km |
|
Frequency bandwidth |
20Hz—20 KHz |
Analog Video |
|
|
Analog Audio – Max output Level |
17.4Vp-p (+18dBm) |
Output Level |
1Vp-p |
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Contact Us
- Tel : +852 - 2687 5815
- Fax: +852 - 2687 5456
- Email: [email protected]
- Office Address: Rm 910-11, 9/F, Topsail Plaza, 11 On Sum Street, Shatin, N.T., H.K.