FM SKU#:SKU00134R1
Model#:DMT-ITU-55TX-10
MFG PART#:
10mw Standard 1550nm ITU standard wavelength Direct Modulated optical transmitter
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
-
1550nm ITU standard wavelength ±1.6nm tunable
-
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 |