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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

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

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