Description:
This amplifying platform is a super-power amplifier with a gain of 39 dB and a possibility of its modification to a full optical receiver. The amplifiercan be used both for thetrunk and for distribution network; at the same time, afterthe splitterinstallation there will be three outputs.
Advantages:
excellent features and characteristics;
a possibility of its modification to the optical receiver, there is a place foran optical backward channel receiver;
modular, upgradable structure;
all amplifier stages are fabricated using GaAs technology;
there are from one to three RF outputs;
automatic gain control;
plug-in backward channel module;
monitoring system;
removable diplex filters of backward channel;
high level of shielding.
Block diagram:
Technical Specifications:
|
Forward channel characteristic
|
|
Forwardchannelfrequency band
|
47/54/70/85…862 MHz
|
|
Reflection coefficient
|
20 dB
|
|
Gain
|
29…39 dB
|
|
Adjustmentrangeoftheinputattenuator
|
removable 0…20 dB
|
|
Reflection coefficient of the slope frequency response
|
removable 0…25 dB
|
|
Interstage slope frequency response
|
8 dB
|
|
Irregularity of the frequency response
|
±0.4 dB
|
|
Noise factor
|
5.5 dB
|
|
Output level, DIN 45004B
|
127 dBuV
|
|
CTB, CENELEC42 channels
|
113 dBuV
|
|
CSO, CENELEC42 channels
|
116 dBuV
|
|
XMOD, CENELEC42 channels
|
114 dBuV
|
|
Testpointattenuation
|
20 dB
|
|
Group delay time
|
2ns
|
|
Backward channelparameters
|
|
Backward channel frequency band
|
5…30/42/50/65 MHz
|
|
Reflection coefficient
|
18 dB
|
|
Gain*
|
21/-6.5 dB
|
|
Attenuatoradjustmentrange
|
removable 0…20 dB
|
|
Adjustment range of the frequency response slope
|
removable 0…7 dB
|
|
Frequency response irregularity
|
±0.5 dB
|
|
Testsignalsecondaryinput
|
-30 dB
|
|
Noise factor
|
8.5 dB
|
|
Output level, DIN 45004B
|
113 dBuV
|
|
General characteristics
|
|
Operating temperature range
|
-40…+55°С
|
|
Protection class
|
IP67
|
|
The type of output/output connectors
|
PG11 or some other at the customer’s option
|
|
Test point connector type
|
F-female
|
|
Dimensions
|
220×255×100 mm
|
|
Weight
|
3 kg
|
|
Power consumption
|
41 W
|
|
Supplyvoltage
|
27…65 В AC, ±33…90 B DC / 205…90 В AC
|
|
Transit current of remote power supply
|
8 А/port
|
* - active (AC6144)/passive (AC6140) backward channel.
By setting the modules of optical receiver and optical transmitter of backward channel the amplifier platform is easily converted into a full-fledged optical receiver. The characteristics of the optical modules are shown below.
|
Optical receivers (modules)
|
AC6810
|
A6820
|
|
Operating wavelength
|
1290…1600 nm
|
|
Opticalinputpowerlevel
|
-7…-2 dBm
|
-3…+2 dBm
|
|
Adjustment range of output RF signal
|
0…20 dB
|
|
Optical transmitters (modules)
|
AC6840
|
AC6845
|
C6847/49/…/61
|
|
Laser type
|
1310 nm FP
|
1310 DFB
|
CWDM
|
|
Levelofopticaloutputpower
|
+1 dBm
|
+3 dBm
|
+3 dBm
|
|
Frequency range
|
5…100 MHz
|
|
Level of input RF signal (min.)
|
60 dBuV
|
|
Frequencies of the integrated pilot generator
|
4.5 MHz or 6.5 MHz
|
|
