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Product name: 8 CH Telephone
product model: GD8-12F8
■Product introduction:
Tekway series of 8 telephone channel fiber optic equipment is the use of optical fiber transmission equipment long distance telephone transmission. The equipment adopts a large scale integrated circuit design, appearance is concise, easy installation and debugging, maintenance free, stable performance and other advantages, 
application and major telecommunication operators, the government and enterprises.
Tekway series of 8 telephone channel fiber optic equipment can provide 8  telephone, network mode of point to point, support FXO/FXS ordinary telephone, solves the problem of edge customer telephone transmission. The equipment adopts special digital multiplexing chip is a powerful, it will be digital logic devices in almost all the integration, thereby significantly improving the performance of the product and reduce the cost. The whole equipment excellent performance, stable and reliable work, low power consumption, high integration, small volume, easy installation and maintenance.
■Product picture:
■Product features:
◆Industrial design and SMT craftwork
◆based on an integrated circuit of independent intellectual property rights
◆to provide 1 telephone channels, support caller ID and reverse polarity charging function
◆support each site mutual number function
◆voice support FXO port and the FXS port interface, FXO connection PBX , FXS connection user telephone
◆No need configuration or any adjusting during installation, easy to installation
■Technical specification
◆Optical interface 
Physical interface:     FC/PC
Transmit wavelength:        850nm/1310nm/1550nm
Transmit distance:          single mode: 0-20Km, multi mode: 0-2Km
Transmit optical power:     Finer than -8dB
Receive sensitivity:        Finer than -26dB
Optical dynamic range:      12dB
Maximum optical loss:       12dB
◆FXS phone interface 
Physical Interface:          RJ45
Ringing voltage:             75V
Ringing frequency:           25Hz
Two line impedance:          600Ω( off hook)
Return loss:                 40dB
◆FXO phone interface
Physical interface:           RJ45 
Ringing detecting voltage:    35V
Ringing detecting frequency:  17Hz~60Hz
Two line impedance:           600Ω( off hook)
Return loss:                  40dB
■work condition
Working relative humidity:    0~95 %
Working temperature:        -10°C~55°C
Power consumption:        5.2W DC5V
Do not expose this device within corrosive or solvent gas, rising dust or strong magnetic field interference.
 ■ Dimension 
135mm×110mm×26mm (Desktop)
■ Application:

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