1550nm External Modulation Optical Transmitter (ZTX1800)
Product description
ZTX1800 is a standard type of high-performance 1550nm external modulation optical transmitter with high-performance dual switching power supply. The whole unit light source adopts narrow bandwidth, low noise, continuous wave DFB laser, which is propitious to reduce the influence of dispersion. Because of the international brand adoption of key components and our company system optimization control technology, SMNP network control technology, the machine’s technical performance indicators fully measure up the standard of similar imported equipment. It can provide high-quality images, digital or compressed digital signal long-distance transmission for cable television and telephone communications.
Features
(1) High quality: Dual microwave source technology and RF pre-distortion technology ensure that the system can acquire the maximum CTB, CSO, and SBS targets in the case of excellent performance CNR≥52dB.
(2) Flexibility: In ensuring the high performance system CSO, the phase modulation technology of external modulator maximize the optical power into the fiber in order to obtain long-distance transmission, and the field adjustable SBS threshold, 13, 16,18dB, AGC/MGC mode selectable, field optimized OMI make it suitable for different networks transmission.
(3) Reliability: The 19 “1U standard rack, built-in high-performance dual switching power supply, it can work in the backup at 85~265Vac City Network Voltage, MS-level automatic switching; chassis cooling automatic temperature control.
(4) Intuitive: The external modulator and laser is the most expensive machine components, machine equipped with microprocessor monitors the working state of the external modulator and laser, the panel LCD window displays the operating parameters.
(5) Network type: Select All-piece status monitoring transponder guarantee to meet the national standard and be compatible with the SCTE HMS standard, it enables network management monitoring capabilities.
(6) Power supply Pluggable: adopts aluminum material, pluggable switch PSU, work with 86~265VAC, it can be replaced with -48VDC easily.
Technical parameter
| Item | Units | Parameter | Note |
| Laser type | DFB laser | ||
| Wavelength | nm | 1550±10 | Can be specified before ordering |
| Optical Modulation | External modulation | ||
| Optical output power | dBm | 2×7 | 1X7…… 2×9 |
| SBS threshold | dBm | 16.5 | 13~19dB adjustable |
| Optical Connector | SC/APC or FC/APC | specify before ordering | |
| Frequency range | MHz | 47~862 | 47~1000 option |
| CNR | dB | ≥52 | |
| Flatness | dB | ±0.75 | |
| RF input level | dBuV | 75~85 | AGC automatic control |
| C/CTB | dB | ≥65.0 | |
| C/CSO | dB | ≥65.0 | |
| RF input impedance | Ω | 75 | |
| RF Input Return Loss | dB | >16(47~550)MHz | |
>14(55~862)MHz | |||
| Voltage | V | 90~265VAC | Optional -48VDC |
| Power consumption | W | ≤50 | Single-supply operation |
| Working Temperature | °C | 0~50 | Auto temperature control |
| Storage temperature | °C | -20~85 | |
| Relative humidity | % | 20%~85% | |
| Size | ″ | 19″×11″×1.75″ | (W)x(D)x(H) |
| Network management | RJ45 | Support browser and SNMP | |
| Weight | Kg | 5 | |
| Note: | |||
| 1) In the condition of stipulated link-loss, configured in 59 PAL-D analog television channel signals within 550MHz frequency, in the range of 550MHz ~ 750 (862) MHz frequency transmit digital modulation signals, digital modulation signal level ( in 8MHz bandwidth) is 10dB lower than the analog signal carrier level, when the optical input power is 0dBm, you can measure the carrier combination triple beat ratio (C / CTB), carrier combination of second-order beat ratio (C/CSO) and the carrier to noise ratio (C/CNR)2) Fiber: 50KM+EDFA | |||
Product series
Model | Configuration |
ZTX1825 | Dual optic port, each port optical power≥5dBm |
ZTX1826 | Dual optic port, each port optical power≥6dBm |
ZTX1827 | Dual optic port, each port optical power≥7dBm |
ZTX1828 | Dual optic port, each port optical power≥8dBm |
ZTX1829 | Dual optic port, each port optical power≥9dBm |
