1U Modular Fiber Optical Access Device

1. Summary
Developed by Guangzhou Yinxun, this product is a device for comprehensive services of broadband access. With optic fiber link, this product can provide 2 channels of 10/100Base_T data interfaces, 8 channels of 2Mb/s(E1) and 32 subscriber interfaces, and the said subscriber interfaces include FXO, FXS, 2/4 wire audio interface, 2/4 wire EM, RS232/V.24, magnet telephone, hot-line, V.35.etc.

2. Function features
a)Diversified interfaces for varied services of broadband and narrowband access
b)Provide 2 channels 10/100Base_T interface, 8 channels of E1 interfaces and 32 channels optional subscriber
interfaces;
c)The voice interface supports caller ID display
d)CCB payphone application with polarity reversal;
e)Perfect indications of status are available to facilitate maintenance and management
f) With small size and compact appearance, and easy for installation and operation.

3. Working conditions
Working temperature:         0℃~40℃
Relative humidity:           ≤90% (25℃)
Atmospheric pressure:        86-106Kpa

4. Power supply
Input voltage:                  -48V
Allowable voltage fluctuation: -36V~-72V
Input current:                  <1A

5. Subscriber Interface Modules (optional)
Ø FXO
Ø FXS
Ø 2 wire audio interface/2 wire E&M interface
Ø F4 wire audio interface/4 wire E&M interface
Ø RS232/V.24 asynchronous data interface
Ø RS232 synchronous data interface
Ø RS422 data interface
Ø RS485 data interface
Ø Magnet telephone interface
Ø V.35 interface(n*64K bandwidth)
Ø V.21/V.22 interface
Ø G.703 64Kb/s synchronous data interface
Ø 10/100Base_T Ethernet interface(100M/S share)
Ø E1/2M interface

6. Technical Parameters

Optic Interface Bit Rate: 155.52Mbps ±20ppm Line Type: NRZ+ scrambling code Transmitting Optical Power: >-5dB(long distance),Or >-12dB(short distance) Receiving Sensitivity: >-36dB Standard Interface Types: FC/Single Mode /Dual-fiber/transmission distance 40Km Alternative types: single fiber,60,80Km……	E1/2MInterface Bit Rate: 2.048Mbps ±50ppm Standards : ITU-T G.703, G.704, G.712 Line Type: HDB3 Interface Impedence: 75Ω Physical Interface: CC4
Subscriber Interface(FXO)       Impedance:    600Ω Insertion Loss: -3±0.75dB Frequency Characteristic: 300~3400Hz(-0.6~+3dB) Weighted Noise: ≤63.7dBmop Crosstalk Attenuation: ≥65dB Loop Impedance: ≤1800Ω	Subscriber Interface(FXS) Impedance:    600Ω Insertion Loss: -3±0.75dB Frequency charactieristic: 300~3400Hz(-0.6~+3dB) Weighted Noise: ≤63.7dBmop Crosstalk Attenuation: ≥65dB Loop Impedance: ≤1800Ω
2/4 lines audio interface                      Coding Type: ITU-T G.711A Frequency Range: 300~ 3400Hz 2 wire input relative level: 0~ -5dBr Output Relative Level: -2~ -7dBr 4 wire Input Relative Level: -14dBr Output Relative Level: +4dBr	V.24/RS232 interface Data and clock level conform to the recommendation of V.28 Synchronous Data Rate: 64Kbps Asynchronous Data Rata: 0~19200bps
Ethernet interface              Compatible with: IEEE802.3 Interface Type: 10/100Base_T Interface rate: 10/100Mbps (self-adaptive) Transmission Rate: 100Mb/s share Physical Interface: RJ45	Others              19 inch 1U EIA chassis LED indicates the working status of the system Input Voltage: -48V DC Acceptable dynamic Voltage: -36V ~ -72V Input current: < 1A Ambient Temperature: ≤50℃ Relative Humidity: ≤90%RH

7. Scope of Applications
This integrated multi-service transmission device is suitable for special network accesses of power station,airport,government,military and video conferencing or video surveillence.

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