25KM Cable TV 10mW Direct Modulation 1550nm Optical Transmitter With Butterfly Laser

Product Overview

JZOT1510-KIIN series 1550nm direct optical transmitter (insertion type) is suitable for the image, digital and data signal transmission via fiber in the filed of CATV communication. Designed specifically for the transmission of digital or analog signals over medium and short distances; especially suitable for IPQAM optical insertion, enterprise-run program insertion, etc.

FEATURES

• Support RF mixed and optical mixed two modes.
• Predistortion circuit for 1550nm CSO index improvement.
• Adopt customized imported excellent linearity,low noise,optical isolation,distributed feedback 1550nm DBF laser,ITU-T standard wavelength.
• Front LCD display the key working parameters.
• When the SBS of Insert path is more than 16dBm,within certain transmission distance,the 1550nm direct optical transmitter could work as external optical transmitter.
• The working status of the equipment could be monitored and controlled by EMS,like broadcasting path optical power,insert path optical power,laser wavelength,laser temperature,power status and bias current,RF gain etc.
• With micro processor to control the laser APC,ATC and on-line monitor to make sure the best working performance of laser,control the optical power precisely greatly improve the system performance and prolong the service life.
• The RF drive amplifier and control circuit adopt arsenide amplifier and go through power multiplier module as RF drive level of the laser make sure the CTN ratio and non linearity distortion index of the device.
• Automatic gain control (AGC) and manual gain control (MGC) can be set by pressing the button. RF input level indicator and alarm indication are displayed automatically in the LCD panel.
• The insert path power is adjustable.
• With the interface of RS232,RJ45,built-in class II network management responder, network management communication protocol follows GB / T20030-2005 "HFC network equipment management system specifications" and compatible with ANSI / SCTE, IEC standards. The MIB library can also be opened to the operators who apply the device for network management integration.
• Built in micro processor firmware,with laser status display,data display,error alarm,network management etc.When the operating parameters of the laser deviate from the safety range, the device automatically cuts off the laser power supply, and at the same time, the sound and light alarm (the front panel alarm red light is on, the buzzer sounds in the machine). The display window shows the cause of the failure.
• Dual power supplies,support hot plug,AC220V or DC48V for option

Technical Specifications

The technical parameters marked in this manual are the results of tests conducted in accordance with the test conditions and methods specified in the GY/T143-2000 "specifications and methods of measurement on AM optical transmitter and receiver used in CATV systems"

Number	Item	Unit	Performance	Remark
1	Laser output optical power	mW	10	4,6,8,10
2	Insert program optical wavelength	nm	ITU-T standard
3	Optical modulation		direct
4	Insert program frequency qty		≥32
5	Broadcasting optical input range	dBm	0~+6	Combiner multiplexer
			0~+12	DWDM multiplexer
6	Insert path attenuation range	dBm	-16~0
7	Optical connector		SC/APC or FC/APC
8	Optical reflection loss	dB	>55
9	RF working bandwidth	MHz	47~1000
10	RF input impedance	Ω	75
11	flatness	dB	±0.75
12	RF input signal level	dBmV	15~25	Main port
13	RF2 signal level	dB	+10	Vice port
14	RF gain range	dB	-10~+10
15	RF input reflection loss	dB	≥16
16	RF level control mode		AGC/MGC
17	RF connector		Imperial F
18	(C/N)	dB	≥51.0	6.2.3.5
19	(C/CTB)	dB	≥65.0	6.2.5
20	(C/CSO)	dB	≥60.0	6.2.6
21	Power consumption	W	≤20
22	Working temperature range	℃	0~+40
23	Storage temperature	℃	-25~+55
24	Network interface		RJ45	II
Front Panel
Rear Panel