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Indoor Optical Node STON 200

Introduction:

Indoor Optical Node STON 200

The STON 200 optical node is a two ways optical node used to video (digital or analog) as well as high-speed data services over advanced hybrid fiber/coax (HFC) network terminal; this optical node combines an optical receiver working from 70 to 870MHz and an optical transmitter for up-stream from 5 to 55MHz.

Features:

u       The optical detector build-in a current converter with 6dB gain.

u       Use a low noise pHEMT GaAs FET for the first RF amplifier,it is suitable for low optical power receive.

u       Remote or co-located powering capable.

u       Die-cast aluminum housing for excellent heat dissipation.

u       Compact housing size: 5.9”×3.5”×1.35”.

 

Functional Diagram:

 

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Specifications:

Station Parameters: Forward Path

General Performance

Conditions

Units

Specifications

Electronic parameters

Bandwidth

 

MHz

70 to 870

Flatness

Worst case

± dB

0.75

Impedance

 

Ohm

75

RF output level

 

dBmV

24±2@ -4dBmW Optical power OMI=3.7%

RF return loss

Worst case

dB

16

RF test point

 

-dB

20±1

CNR

 

dBc

48 @ –4dBmW Optical power

CTB

 

dBc

70 @ –4dBmW Optical power

CSO

 

dBc

65 @ –4dBmW Optical power

Optical Parameters

Optical receiver power

 

dBm

-8 to 0

Optical test point

 

V/mW

+1V/mW

Equivalent Noise current

 

 

4pA /H

Wavelength

 

nm

1200 to 1600

Station Parameters: Reverse Path

Electronic parameters

Bandwidth

 

MHz

5 to 55

Flatness

Worst case

± dB

0.75

Impedance

 

Ohm

75

RF return loss

Worst case

- dB

16

Optical Parameters

Type of transmitter

 

N/A

FP

Output optical power

Standard

mW

0.5

Optical test point

 

V/mW

+1V/mW

Reverse channel loading

With 10dB fiber link

N/A

T9&T10

RF input level

 

dBmV

20

RF test point

 

-dB

20±1

Wavelength

 

nm

1310

CNR

Worst Case

-dBc

45

CTB(FP)

Worst Case

-dBc

45

CSO(FP)

Worst Case

-dBc

45

Environmental

Operating temperature

 

()

-10 - +50

DC voltage input range

 

VDC

12 TO 24

Power Consumption

 

Watts

4

Surge Protection

All ports

KV

6

RF output stability over temperature

 

dB

±2

Physical

Optical connector

 

N/A

SC/APC,

Dimensions (H×W×D)

 

In, (cm)

5.9×3.5×1.35 (15.0×8.8×3.4)

Weight

 

Kg

0.4

 

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