11mw Standard 1550nm Direct Modulated optical transmitter with AGC

FM SKU#:SKU00131R1
Model#:ADMT-55TX-011
MFG PART#:

11mw Standard 1550nm Direct Modulated optical transmitter with AGC

1550nm intelligent directly modulated optical transmitter, mainly used in 1550nm optical fiber transmission system is the most important equipment to construct the CATV network. It mainly used for the value-added services of TV image signal, digital television signal, telephone voice signal and data (or compressed data) signal. By built-in WDM, multiplex the inter-cut optical signal and the main optical signal then output. After setting required optical difference, the perfect adjustable optical attenuation function can automatically control the inserted optical signal according to the main optical signal, realize inter-cut system full automatic adjustment. Provide high quality low cost solution for all-optical relay 1550 optical fiber CATV system, and local value-added services inter-cut.

Features

Low noise high linearity Ortel-Emcore cooled DFB laser

RF power digital automatic process technology control the laser driving RF power lever automatically according to RF signal level and channels, ensuring the best C/N, CTB and CSO

Excellent pre-distortion technology improves CTB,CSO and C/N

Built-in microprocessor accurately monitors laser output power and temperature

Front panel VFD displays the status parameters and function message

SNMP network management optional

OEM is optional

Applications

1. 1550nm Optical fiber transmission system
2. Construct the CATV network
3. Local value-added services inter-cut

Technique Parameters

Item	Unit	Technique Parameters
Output optical power	mW	10
Optical wavelength	nm	1550±10 (have to be ITU wavelength when with inter-cut function)
Dispersion compensation distance	Km	≤50
Laser type		DFB laser
Optical modulation mode		Direct optical intensity modulation
Optical connector type		FC/APC or SC/APC
Frequency range	MHz	47-862/1003
RF input level	dBuV	75-85
Flatness in band	dB	±0.75
RF input impedance	Ω	75
Input return loss	dB	≥ 16
C/CSO	dB	≥ 60	25Km optical fiber, 0dB received
C/CTB	dB	≥ 65
C/N	dB	≥ 51
AGC control range	dB	±5
MGC control range	dB	0-20
Supply voltage	V	AC 110V-250V (50Hz)
Consumption	W	30
Operating temperature	℃	0 -- 45
Storage temperature	℃	45
Relative humidity	%	Max 95% no condensation
Dimension	mm	483（L）×380（W）×44（H）

Block Diagram

1550nm directly modulated optical transmitter block diagram
Inter-cut part block diagram

Front Panel

Front panel schematic diagram

1	Power indicator	2	Running indicator	3	Laser indicator
4	RF input indicator	5	LCD	6	ESC key
7	UP key	8	DOWN key	9	Enter key
10	RF output test port	11	Laser switch

Indicator Description

Power indicator (POWER)	Power on	LED green
Running indicator (RUN)	Run normally	LED flash green
Laser indicator	Laser OFF	LED red
Laser ON	LED green
RF input indicator (RF)	No output or exceed the normal range	LED flash red
Normal	LED green

Rear Panel

Rear Panel schematic diagram

No.	Name	Remark
1	Fan
2	RF input
3	Local RF input	Generally reserved
4	Ground stud	Used for the connection of device and ground wire
5	Optical input	Inserted optical signal input (without inter-cut function, no this port)
6	Optical signal output	This interface is the optical signal output port of the device (If select inter-cut function, this port is mixed output)
7	RS232 interface	Used for configuring the network management parameters.
8	LAN interface	Correspond to IEEE802.3 10Base-T, used for network management.
9	Switching power supply	Hot plug