HDO777发射机
The HDO777 downstream transmitter supports frequencies up to 1218 MHz and has one +11 dBm output. HDO777 is an externally modulated 1550 nm C-band DWDM transmitter for short, medium and long distances. It supports broadcast and broadband and narrowcast services in digital and analogue formats.
功能一目了然:
- DOCSIS 3.1兼容
- External modulation enables different link spans from one transmitter (more than one receiver)
- External modulation doesn’t require dispersion compensation
- Standard and high SBS suppression models available
- Standardised input and test point levels
- Low power consumption and high performance
- Two inputs with level adjustments
- Equaliser in both inputs
- High isolation between inputs
- Unused input can be switched off for power saving and noise reduction
- Integrated input amplifiers and laser driver amplifiers
- Automatic power control providing constant total OMI as standard feature
- Optional spectrum analyser function
- Optional 3-way output splitter
- Optional integrated xWDM filter to combine forward and return paths into one fibre or to combine various forward wavelengths into one fibre
- 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
L-EML, monolithic InP device
峰值波长
1530…1560 nm (ITU ch59…21)
Output power, nominal value
+ 11dbm或+ 6dbm
SBS suppression, option A
– RF load starting from 45 MHz
– RF load starting from 85 MHz
– RF load starting from 112 MHz
– RF load starting from 200 MHz
– RF load starting from 45 MHz
– RF load starting from 85 MHz
– RF load starting from 112 MHz
– RF load starting from 200 MHz
+ 12dbm
+ 14 dBm
+ 15 dBm
+ 16 dBm
SBS suppression, option H
+ 19 dBm
Relative intensity noise
-153 dBc /赫兹
每通道OMI
2.6 %
Pass band of optional xWDM filter
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
1, 2 or 3
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
液位调节范围
10 dB
Equaliser adjustment range
0…6 dB
Isolation between inputs
50 dB
Spectrum analyser module (option)
测量范围
47…1218 MHz, 0.25兆赫步进
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
Link C/N, -2 dBm to optical receiver
51 dB
施
62 dB
方案
62 dB
海洋博物馆
40 dB
的误码率
<-10^9
一般
电力消耗
9 W
供应电压
25v / 330 mA
6.3v / 150ma
6.3v / 150ma
射频连接器
F女
光学连接器
SC/APC, LC/APC, E2000/APC
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%
