22
Oct/2017 - V1
Technetix Group Limited
Product User Manual
AIMA-FT5E
CAUTION!
Module will be upgraded after the firmware is uploaded. The upgrading and reboot process will
take about 30s. During the upgrade, please don’t power off the device and don’t plug any module
in the same chassis, or it may lead to upgrade fail or data
sync error.
5.5 Module Operating Range
Typical Usage Conditions
94 ITU-T J.83 Annex A QAM 256, 258MHz~994MHz, 1206MHz. DOCSIS 3.1, OFDM, (Centre 1100MHz, 192MHz width),
4k FFT.
Typical Input (BC Port)
The optimal input values in the QAM environment are as follows:
1
10dBmV/ch 94 ITU-T J.83 Annex A QAM 256, 258MHz~994MHz, 1206MHz. DOCSIS 3.1, OFDM, (Centre 1100MHz,
192MHz width), 4k FFT.
Suggest reduce the input power 1 dB to avoid the transmitter overloaded, so suggest 10dBmV/ch.
Note:
The MER indicator of the signal source is higher than 46 dB.
Input Range
MER>39dB when BC input is from 7dBmV to 13dBmV.
5.5.1 94CH QAM (including OFDM) Environment
30
32
34
36
38
40
42
2 3 4 5 6 7 8 9 10 11 12 13
RF input vs MER
MER
QAM RF in(dBmV)
MER (dB)
Figure 5-8 MER and BC input changes
1. Optical input power to EDFA is 5dBm, optical input power to fibre is 16.4 dBm; fibre optic cable 12 km; optical input into the receiver -5 dBm.
Summary of Contents for AIMA3000-FT5E
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