Sichuan Bihong Electronic Information Technology Co., Ltd.
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External Optical transmitter 2*7dB(OLT Series)
Features
1.1 It adopts narrow bandwidth & low-noise DFB laser as signal source, high linear LiNbO3 external modulator as external signal modulation.
1.2The perfect predistortion circuit ensures the perfect performance of CTB and CSO in high standard CNR value.
1.3 Advanced SBS dual band suppression circuit, SBS continuously adjustable,adjustable range: 13~19 for different distance networks.
1.4 Automatic gain (AGC) control enables stable output in different RF input level.
1.5 Different networks can be optimized by OMI adjustment.
1.6 Fully automatic case temperature control, intelligent fans, the fans starts to work when case temperature reaches 30 ℃.
1.7 Built -in dual backup power supply, hot plug and automatic switch supported.
1.8 The working 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 working parameters of the laser deviate from the allowed range set by the software, the system will alarm promptly.
1.9 Standard RJ45 interface provided, supporting remote network management of SNMP and web, and remote adjustment of AGC, SBS, OMI and other functions.
| Category | Items | Unit | Parameters | Remarks | |||||
| Min. | Typ. | Max. | |||||||
| Optical | Wavelength((nm) | nm | 1540 | 1563 | Compatible with ITU wavelength | ||||
| Output Port No. | 1 | 2 | |||||||
| Each Output(dBm) | dBm | 5 | 10 | 1dBm/step | |||||
| Laser linewidth | MHz | 0.35 | |||||||
| SMSR | dB | 45 | 50 | ||||||
| RIN | dB/Hz | -160 | 20~1002MHz | ||||||
| Optical Return Loss | dB | 50 | |||||||
| Fiber Connector | SC/APC | FC/APC,LC/APC Optional | |||||||
| RF | Bandwidth | MHz | 47 | 1002 | |||||
| Input Level | dBμV | 75 | 80 | 85 | AGC | ||||
| MGC ATT | dBμV | 0 | 15 | In MGC | |||||
| Unflatness | dB | -0.75 | +0.75 | 47~1002MHz | |||||
| Return Loss | dB | 16 | 47~1002MHz | ||||||
| Input Impedance | Ω | 75 | |||||||
| RF Connector | F Metric/ Imperial | Optional | |||||||
| Link | Test Channels | PAL-D/ 59CH | PAL-D/99CH | ||||||
| CNR1 | dB | ≥53.0 | 52.0 | TX to RX,0dBm input to Node | |||||
| CNR2 | dB | ≥51.0 | 50.0 | 65K fiber,0dBm input to Node | |||||
| CTB | dB | ≥65 | |||||||
| CSO | dB | ≥65 | |||||||
| SBS | dBm | 13 | 19 | Adjustable, Step 0.1dB | |||||
| General | Network Management | SNMP,WEB supported | |||||||
| Power Supply | V | 90 | 265 | AC | |||||
| -72 | -36 | DC | |||||||
| Power Consumption | W | 50 | Dual Power Supply, 1+1back up | ||||||
| Working Temp | ℃ | -5 | +65 | Auto case temp control | |||||
| Storage Temp | ℃ | -40 | +85 | ||||||
| Working relative humidity(%) | % | 5 | 95 | ||||||
| Size | mm | 450×483×44 | W,L,H | ||||||
| Weight | Kg | 7.4 | |||||||
Diagram
