HDO775发射机
The HDO775 downstream transmitter supports frequencies up to 1218 MHz and has one adjustable 10 dBm output. HDO775 is a directly modulated 1550 nm DWDM transmitter for short, medium and long distances. It supports broadband, narrowcast and broadcast services in digital and analog formats.
功能一目了然:
- DOCSIS 3.1兼容1.2 GHz带宽
- ITU wavelengths in 100 GHz grid
- Optical output power adjustment for channel power equalising
- Electrical dispersion compensator provides a good CSO performance at longer transmission distances
- Standardised input and test point levels
- Low power consumption and high performance
- Two identical inputs with individual level and slope adjustments
- High isolation between inputs
- Unused input can be switched off for power saving and noise reduction
- Drive amplifier can be set to power save mode in narrowcast load conditions
- Integrated input amplifiers and laser driver amplifiers
- Automatic power control providing constant total OMI as standard feature
- Optional integrated xWDM filter to combine forward and return paths into one fibre or to combine various forward wavelengths into one fibre
- Optional spectrum analyser function enabling ALSC
- Fibre connectors can be located at the rear or at the front panel
- Small form factor family, 2 RU height
- Local and remote software control of all adjustments
- Forced cooling through the unit
产品 规范
光学参数
光源
Cooled DFB with optical isolator
峰值波长
1530…1560 nm (ITU ch59…21)
Output power, nominal value
+ 10 dBm
SBS抑制
+ 16 dBm
Relative intensity noise
-154 dBc /赫兹
每通道OMI
2.6 %
链路长度设置
0…40 km
Pass band of optional xWDM filters
通过通道
反射信道,DWDM
反射信道,CWDM
通过通道
反射信道,DWDM
反射信道,CWDM
±0.12 nm (DWDM)或±6.5nm (CWDM)
1520…1565 nm except the pass channel
1260…1620 nm except the pass channel
Number of optical ports
2
射频参数
频率范围
47…1218 MHz
射频阻抗
75 Ω
输入回波损耗
18 dB
平面度
±0.4 dB
Automatic power control (APC)
是的
Laser test point level for 4.5% omi
78分贝μV
输入电平
77分贝μV
Level adjustment range
-15…0 dB
Equaliser adjustment range
-6…+1 dB
Isolation between inputs
50 dB
Spectrum analyser module (option)
测量范围
47…1218 MHz, 0.25赫兹步进
测量带宽
0.35兆赫
动态范围
58…98 dBµV
测量精度
±1 dB
Noise and distortion performance
海洋博物馆
40 dB
的误码率
<-10^9
一般
电力消耗
8.2 W
供应电压
25v / 250ma
6.3 V / 300 mA
6.3 V / 300 mA
射频连接器
F女
光学连接器
SC / APC, e - 2000
冷却
现场可更换风扇
Dimensions (h x w x d)
2U x 7HP x 380 mm, Occupies 1/12 of HDX002
重量
1.5 kg
EMC合规
EN 50083-2
Enclosure classification
IP20
Operating temperature range
0…+45 °C
Storage temperature range
-20…+60 °C
Operating relative humidity
0…85%