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multi-service voice over fibre optic multiplexer

This voice over fibre multiplexer is an multi-service broadband access platform, it provides various data over fiber.

Product description
Functions
Technical parameters
Application

This voice over fibre device for multi-service broadband access. With optical 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 E&M,RS232(V.24),magnet telephone,hot-line,V.35.etc.The subscriber interface slots from 1 to 32 are of universal type allowing hybrid insertion of optional subscriber interfaces, which make it possible to meet users' varied requirements for services of traditional narrowband and popular broadband access.

multi-service voice over fibre optic multiplexer 3

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.

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

Power supply
Input voltage: -48V
Allowable voltage fluctuation : -36V～-72V
Input current: ＜1A
Or External Power supply: AC110V ~ 220V

Technical parameter
1 Link interface: optical interface
a) Bit rate: 155.52Mbps±20ppm
b) Code type: NRZ+ scrambling code

c) Optical Transmitting power: > -5dB ～ -17dB

2. Subscriber interface
2.2.1 E1(2Mb/s) interface
Standard E1 interface, conforms to the recommendation of ITU-T G.703, G.704, G.712:
a) Bit rate: 2048Kbps±50ppm
b) E1 Line Code : HDB3
c) Interface impedance: 75Ω unbalanced or 120Ω balanced

2.2.2 Subscriber and loop interfaces(FXO, FXS, hot-line phone)
a) Impedance: 600Ω
b) Insertion loss: -3±0.75dB
c) Frequency characteristic: 300～3400Hz(-0.6～+3dB)
d) Weighted noise: ≤63.7dBmop
e) Crosstalk attenuation: ≥65dB
f ) Loop impedance: ≤1800Ω

2.2.3 2 wire/4 wire audio interfaces (2 wire/ 4 wire E&M interface)
a) Impedance: 200Ω+680Ω||0.1μF
b) 4 wire AD gain: 14 dB(adjustable)
c) 4 wire DA gain: -2 dB(adjustable)
c) 4 wire AD frequency characteristic: -0.2 - +0.2dB
f ) 2 wire AD frequency characteristic: -0.2 - +0.2dB
g) 2 wire DA frequency characteristic: -0.2 - +0.2dB
h) Return loss: 40dB
I ) Balance degree: 70dB
j ) Common Mode Rejection Ratio(CMRR): 70dB
k) Power rejection ratio: 30dB
m) Spare channel noise: ≥65dB
n) Loop impedance: 600Ω

2.2.4 RS232(asynchronous ) interface
a) Interface type: V.24 asynchronous
b) Rate: 0 – 19.2Kbps

2.2.5 RS232(synchronous) interface
a) Interface type: V.24 synchronous (simplex, duplex is optional)
b) Rate: 4800bps, 9600bps,19200bps, optional
c) Clock mode: DCE, DTE, optional

2.2.6 V.35 interface
a) Interface type: V.35 asynchronous
b) Rate: Nx64Kb/s(N =1-30)
c) Clock mode: DCE

2.2.7 10/100Base_T interface
a) Interface type: 10/100Base-T
b) Interface rate: 10M/100Mbps (auto-negotiatory)
c) Transmission rate: 100Mbps

3. Device Dimension
19” EIA chassis: 210mm(depth)*480(width)*44mm(height)

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multi-service voice over fibre optic multiplexer

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