1550nm External Modulation Optical Transmitter with Long Distance Transmission up to 250KM
Product Overview
HT2000 series is 1550nm externally modulated transmitter with the best performance and the highest index. It is the first choice for long-distance transmission and large area covered local networks. It is applied to: the optical modulation and optical insertion of large and medium-sized 1550nm optical transmission system; the upgrading and expansion of WDM and its related networks. It is the core equipment of 1550nm network transmission system to for triple-play and FTTx.
Feartures
1. It adopts narrow bandwidth & low-noise DFB laser as signal source, and high linear LiNbO3 external modulator as external signal modulation.
2. The perfect pre-distortion circuit ensures perfect performance of CTB and CSO in high standard CNR value.
3. Advanced SBS dual band suppression circuit, SBS continuously adjustable, adjustment range: 13~ 19 for different distance networks.
4. Automatic gain (AGC) control enables stable output in different RF input levels.
5. Different networks can be optimized by OMI adjustment.
6. Fully automatic case temperature control, intelligent fans, the fans starts to work when case temperature reaches 30 ºC .
7. Built-in dual standby power supply, hot plug in/out and automatic switching supported.
8. The operating parameters of the whole machine are controlled by microprocessor, and the LCD status display on the front panel has many functions such as laser status monitoring, parameter display, fault alarm, network management, etc.; once the operating parameters of the laser deviate from the allowed range set by the software, the system will alarm promptly.
9. Standard RJ45 interface provided, supporting remote network management of SNMP and WEB, and remote adjustment of AGC, SBS, OMI and other functions.
Main Technical Index
| Category |
Items |
Unit |
Index |
Remarks |
| Min. |
Typ. |
Max. |
Optical Index |
Operating Wavelength |
nm |
1540 |
|
1563 |
Compatible with ITU wavelength |
| No. of Output Ports |
|
|
2 |
|
|
| Output Power per Port |
dBm |
7 |
|
10 |
1dBm interval |
| Laser Linewidth |
MHz |
|
0.35 |
|
|
| SMSR |
dB |
45 |
50 |
|
|
| RIN |
dB/Hz |
|
|
-160 |
RIN( 20~ 1002MHz) |
| Optical Return Loss |
dB |
50 |
|
|
|
| Fiber Connector |
|
SC/APC |
FC/APC,LC/APC |
RF Index |
Operating Bandwidth |
MHz |
47 |
|
1002 |
|
| Input Level |
dBμV |
75 |
80 |
85 |
AGC |
| Flatness |
dB |
-0.75 |
|
+0.75 |
47~ 1002MHz |
| Return Loss |
dB |
16 |
|
|
|
| Input Impedance |
Ω |
|
75 |
|
|
| RF connector |
|
F Metric/Imperial |
Specified by user |
Link Index |
No. of Test Channels |
|
PAL-D/59CH |
PAL-D/99CH |
|
| CNR1(dB) |
|
≥53.0 |
52.0 |
TX to RX directly, Rx 0dBm |
| CNR2 |
dB |
≥51.0 |
50.0 |
Fiber 65km,Rx 0dBm |
| CTB |
dB |
≥65 |
|
| CSO |
dB |
≥65 |
|
| SBS Suppress |
dBm |
13 |
|
19 |
Continuous adjustable, each step 0.1 |
General Index |
Network Management Interface |
|
SNMP,WEB supported |
|
| Power Supply |
|
90 |
|
265 |
AC |
| -72 |
|
-36 |
DC |
| Power Consumption |
W |
|
|
60 |
Dual Power Supply, 1+1 standby |
| Operating Temp |
ºC |
-5 |
|
+65 |
Auto case temp control |
| Storage Temp |
ºC |
-40 |
|
+85 |
|
| Operating Relative Humidity |
% |
5 |
|
95 |
|
| Dimension |
mm |
440×483×44 |
D,W,H |
| Weight |
Kg |
7.4 |
|
Main Application
1. Large and medium-sized CATV head-end, large capacity backbone network, ultra long distance transmission.
2. FTTH, FTTx PON, RFOG,Triple-play.
3. Narrow band inserted data services such as IPQAM.
4. Network upgrading and capacity expansion based on existing optical fiber resource.
5. DWDM System
Packing&Shipping
Package type: each pcs wth soft ,safety polyfoam ,then packed in carton.
Shipping way: it usually take 5-7 days by DHL, TNT, Fedex, UPS to arrive your local place
Company introduction
Catcast Technology Co.,Ltd is a high-tech enterprise which concentrates on the research, manufacture, sale and engineer service of digital TV headend & broadcasting equipments with 18 years history in Chengdu, China. Catcast is building up both domestic and overseas markets while making a good contribution to the TV broadcasting industry. As a TV network investor, we have accumulated a great deal of experience in network operation of cable or wireless digital TV, IPTV, DSNG system as well as transfer analog tv system to digital tv system. Upgrade CATV/MATV to IPTV system. We are always striving for innovation , and keep the principle to do business: The same product , we win the quality. The same quality, we win the price.
Why choose us