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External modulated optical transmitter

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1006

External modulated optical transmitter

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产品描述
Product features and benefits:
 
l Dual port high power balanced output
 
l Suitable for different frequency systems: NTSC, CENELEC and PAL
 
l Low noise figure (RIN), high carrier-to-noise ratio (CNR)
 
l Excellent CSO, CTB, XMOD performance
 
l CNC gain adjustable (0.5dB step) predistortion AGC RF amplifier circuit
 
lSOC high performance single-chip microprocessor 12BitD/A realizes laser digital precision temperature and power control
 
l Fully enclosed left and right air duct chassis design to adapt to various harsh environments
 
l The front panel displays the status and parameters of the optical transmitter.
 
l Monitor small changes in status and parameters via the RS-485 interface
 
l Software upgrade and monitoring via RS-232 interface
 
l Remote network management through RJ-45 network interface and SNMP network management protocol
 
 
 
Technical Parameters
 
Optical characteristics

 

Laser type

1550nm DFB LD

Light wavelength

1550nm ± 10nm or ITU-grid

Relative intensity noise

≤-160dB/Hz

Connector type

SC /APC ;FC/APC

Optical output power

Optional

Light output

2-way balanced output

SBS threshold

13-19dBm adjustable

 

RF characteristics
 

RF bandwidth

45 -870MHz

RF input impedance

75Ω

Test port

15±1dBmV/ch(under AGC mode @77channels loading)

RF input reflection loss

≤-16dB

RF connector type

F type female

RF input level

15 to 25dBmV/ch with AGC control,
OMI/ch=3%±0.25%

flatness

± 0.75dB

CNRNote1

>54dB

CNRNote2

>52dB

CSO @ 60 CH.PAL-D

≤-65dBc

CTB @60 CH.PAL-D

<-65dBc

XM

≤-65dBc

 

working environment
 

power supply

90 ~ 260VAC,50/60Hz

Power consumption

65W(Max)

Operating temperature

0°C ~ +50°C

Storage temperature

-20°C ~ +60°C

Relative humidity

85% MAX

Physical size

490D X 485W X 45H(mm)

weight

<6kg

 

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