l 10-bit digital encoding and uncompressed video transmission;

l 5Hz-10MHz video channel; automatically compatible with PAL, NTSC, SECAM video system; with APC circuit, the output optical power is constant, the dynamic range is large;

l Without downtime maintenance in the process of using, can be hot-swappable; Gigabit fiber transmission, large capacity, easy to upgrade; 

l Power and other parameters status indicator LED can monitor the operation status of the system;

l Support any high resolution video signal; support video lossless regenerative relay;

l Support RS232/RS485/RS422 or Manchester code;

l Advanced adaptive technology, does not require on-site electrical or optical adjustment;industrial modular design makes the device reliable and flexible;

l Can automatically restore the overload protection; unique full built-in power supply design;

l Desktop, wall mounted, 19 inch 1U rack or 4U card insert; support for user customization.

Optical characteristics:

Optical interface: SC/FC/ST

Wavelength: single mode 1310nm/1550nm ；multimode 850nm/1310nm

Fiber; multimode, single mode;

Transmission power transmission: -9dBm/-5dBm

Transmission length: 0-100km;

Receiving sensitivity: better than -36dBm

Features: Can be customized according to user needs for different interface types.

Video characteristics:

Channel：4-Channel video

Video interface form: BNC

Signal system: PAL/NTSC/SECAM; Nominal input/output level: 1Vp-p

Video input/output impedance: 75Ω（unbalanced)

Video sampling: 15MHz high speed sampling

Video input/output voltage: 1Vp-p

Video bandwidth: 8MHz

Differential gain:(10% -90% APL) DG<1% (typical)

Differential phase:(10% -90% APL) DP<0.7o (typical)

Video signal to noise ratio(weighted):S/N ≥ 70dB (maximum optical link loss)

Color brightness delay difference of 10ns (typical)

Color brightness gain difference: ± 10% (typical);

Note: support forward, reverse, BIDI video.

Data characteristics:

Data Channel：1-Channel reverse data

Interface type:  RS232/RS485/RS422/ Manchester code

Interface signal: RS-232, RS-422, RS-485, Man code / Biphase, switch signal;

Interface features：meet the ITU-T V.24 standard

Connection mode:DCE 

Code rate:0～256Kbps

Bit Error Rate：≤10^-9

Note: support forward, reverse, BIDI data.

Audio characteristics:

Audio channels: 1-Channel Bidirectional audio (optional)

Each channel bandwidth: 20Hz ~ 20KHz; Sampling frequency: 96KHz

Quantification level: 24bit;

Input impedance (Line-in): 47KΩ / unbalanced

Output impedance (Line-out): 10KΩ unbalanced

Nominal input and output level: 2Vp-p; Total harmonic distortion: 0.1% (typical)

Unbalanced Weighted Signal to Noise Ratio: 75dB (typical)

Switch interface parameters(RJ45/terminal):

Response time: <0.5ms  Physical interface: RJ45

Switch interface: Optical MOS relay 350V/120mA

Telephone Interface:FXO / FXS Interface Parameters (RJ45 / RJ11)

FXS phone port

Ringing voltage: 75V; Ringing frequency: 25HZ

Second-line input impedance: 600Ω (off-hook); Return loss: 40 dB

FXO switch interface;

 Ring detection voltage: 35V; Ringing detection frequency: 17HZ-60HZ;

Second-line input impedance: 600Ω (off-hook); Return loss: 40 dB

Features: Optional RS232 / RS485 / RS422 different types of data interface, or both.

Ambient temperature: -30 ℃ ~ 75 ℃;

Storage temperature: -40 ℃ ~ 85 ℃

Relative humidity: 0 ~ 95% (non-Condensing);

Size: Standalone (225mm*200mm*40mm)

Size: Card (standard 4U centralized management rack)

Rated supply voltage: AC220V / 50Hz;

Bit error rate: ≤10^-9

Internal power consumption: 2.5 W;

MTBF: ≥10⁵ hours

Size: Standalone (225mm*200mm*40mm)

Size: Card (standard 4U centralized management rack)

Application environment: 

security system, TV medical, high-fidelity video and video conference call, real-time monitoring and control system, intelligent traffic monitoring system (ITS), remote multimedia teaching / campus monitoring, long-distance radio and television transmission system

4-Channel Video+1-Channel reverse RS485 data.doc