Specifications

External modulation 1550nm optical transmitter
1U, 19 inch housing
Dual power supplies
AGC control
Reserve SNMP transponder

Features

• Both the external modulator and laser are imported from the United States or Japan.
• Perfect pre-distortion circuit ensures the best CTB and CSO when the CNR is in high standard.
• Perfect SBS suppress circuit and adjustable SBS in 13,16, 18,suitable for different types of CATV net
• AGC control.
• Internal double power which can be changed automatically.
• Automatically shell temperature control.
• Internal microprocessor software has the function of laser monitoring, parameter display, fault warning, net management and so on. Once the working parameter of the laser goes out of the fixed value of the software, the machine will warn.
• The transmitter provides RJ45 and RS232 standard interface for the connecting the computer and monitoring.

Diagram

Specifications

Parameter		Index	Remarks
Optical Parameters	Wavelength (nm)	1550±10
	Output power (dBm)	2×7	Or 1×5,1×6,1×7, 1×9,2×5,2×6,2×7
	Optical return loss (dB)	≥60
	Connector type	FC/APC	Or SC/APC
RF parameters	bandwidth (MHz)	45~862
	Input level(dBmV)	23±5	AGC
	Flatness     (dB)	≤±0.75	45~862MHz
	Return loss(dB)	>16	45~750MHz
	Input inpedance   (Ω)	75
Link Parameters	channels	PAL-D/60ch
	CNR       (dB)	≥52	65Km fiber,Receive0dBm
	CTB        (dB)	≤-65
	CSO       (dB)	≤-65
	SBS  (dBm)	≥16.0	13,16,18
General Parameters	Net  interface	RJ45,R232
	Power(V)	90~265	Or -48VDC
	Power loss(W)	≤50
	Working Temperature(°c)	0~50	Automatically shell temp control
	Storage Temperature(°c)	-20~85
	Working relative Temp	20%~85%