3G/HD/SD-SDI, RS422, Audio, Ethernet, Tally, Intercom & Return Video over
Fiber Multiplexer
Advantage
► Supports SMPTE 3G, HD and SD-SDI data rates
► Handle all Pathological patterns
► Automatic cable equalization to ensure signal integrity
► With Remote & Tally & Audio(Intercom) & Return video
► 10/100 Ethernet
► Automatic cable equalization to ensure signal integrity
► Automatic re-locking 270Mbit/s - 1.48Gbit/s - 3Gbit/s
► Support signal type: 270Mbit/s to 3Gbit/s according to SMPTE
424M, SMPTE 292M and SMPTE 259M standards, DVB-ASI
► Directly compatible with 3G/HD/SD-SDI camera systems and support
RS-232, RS-422, and RS-485 data protocols
► 10+Km on single mode fiber or 300m on multi mode fiber
► Terminal block power input, hot swapping and hot plugging
► Industry-grade of operating temperature from -10℃to 75℃ , which
is applied to the different working environment
Overview
The LN K-MIDI Series allows you to transmit 3G, HD or SD-SDI as per
SMPTE 424M-2006, 292 and 259 with the ability to transmit 10/100
Base-T Ethernet RS422, Audio, Ethernet, Tally, Intercom & Return
Video over single mode or multi mode fiber. All data channels are
available simultaneously. The system transports a 3G/HD-SDI signal
from the camera to the Base Station and a return video (3G/HD-SDI),
Remote control data, gen lock, intercom, tally, audio and 10/100M
Ethernet is also provided. The system puts all of the signals
needed for multi-camera 3G/HD-SDI production onto a SM/MM tactical
or SMPTE hybrid fiber cable, insuring robust, trouble-free
connectivity on any studio or remote production.
Application
Technical Indexes
| Fiber Optical interface |
| Fiber interface | Simplex LC |
| Transmission distance | 550m-20Km |
| Wavelength | 1310nm/1550nm |
| Video |
| Video interface | BNC |
| Video input/output impedance | 75Ω |
| Video input/output voltage | Typical:1Vpp, Min 0.5Vpp, Max 1.5Vpp |
| Video Bits Rate | Max 3.2Gb/s |
| Differential gain (10%～90% APL) | <1% |
| SDI format support | 625/25 PAL |
| 525/29.97 NTSC, 525/23.98 NTSC |
| 720p50, 720p59.94 |
| 1080i 23/24/30/50/59.94 |
| 1080P 23.98/24/30/50/60 |
| Video SDI standard | 270Mbps (SD-SDI), 1.485Gbps/M(HD-SDI) |
| SMPTE425M3Gb/s Mapping(3G-SDI) |
| SMPTE424M 3Gb/s serial interface(3G-SDI) |
| Data |
| Physical interface | Industrial standard screw terminal |
| Data type | Reverse RS485 |
| Frequency/Rate support | Max. 57600bps for RS485 |
| BER | <10ˉ9 |
| Electrical |
| Power adaptor | AC 110~220V |
| Power consumption | <15W |
| LED Indicator |
| SDI A/B/C/D/E/F/G/H | SDI video |
| PWR | Power Supply |
| Mechanical |
| Dimensions (LxWxH) | 19inch 1U (483 x 220 x 44.45mm ) |
| Weight | 7KG/pair |
| Casing | Aluminum Case |
| Mounting Options | Rackmount |
| Environmental |
| Working Temperature | -20℃～+70℃ |
| Storage Temperature | -40℃～+80℃ |
| Working Humidity | 0~95% |
| MTBF | ≥100000 hours |
RS422 Data port assignment and pin connections
For data input and output connections, please note the following
pin assignment:
Pin Assignment (Screw Terminal Block)
Data format | 1 | 2 | 3 |
| RS422 (3-Wire) | GND | IN/OUT+(A) | IN/OUT-(B) |
3-Wire RS422 Full Duplex Data communication connection diagram:
Transmitter End Receiver End
| User’s Equipment | | DATA PORT (3-PIN) | DATA PORT (3-PIN) | | User’s Equipment |
| GND |  | 1GND | 1 IN(+) |  | TX(+) |
| IN/OUT+(A) |  | 2 IN(-) | 2 IN(-) |  | TX(-) |
| RX(+) |  | 3 OUT(+) | 3 OUT(+) |  | RX(+) |
