Configuration Example (Manual Adjustment, Ma5833-Bs60) - Huawei MA5833-BS60 Commissioning Manual

MA5833-BS60
Hardware Commissioning Guide
9.
10. Query the downstream RF power adjustment log.
11. Query the downstream RF Tx power.
6.4 Configuration Example (Manual Adjustment, MA5833-
BS60)
This section provides an example to describe how to manually adjust RF.
Data Planning
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In the Downstream Direction
The downstream attenuation can be calculated using the following formula:
Output level on an RF OUT port@1218 MHz = Output power of a single CMC channel –
ATT1 + Gain from the DS to the AMP2 input point + Gain of AMP2 + Gain from the AMP2
output point to the AMP1 input point + Gain of AMP1 – ATT3 + Gain from the AMP1
output point to the RF OUT point
ATT1+ATT3=6.9≈7
Output level on an RF OUT port@1218 MHz = Power of digital TV signals output by Rx +
Gain from the Rx to the AMP3 input point + Gain of AMP3 – ATT2 + Gain from the AMP3
Issue 01 (2018-12-12)
Query the downstream RF transmit power monitoring information of all configured
frequencies.
huawei(config)#display cable rf-power-monitor 0 downstream status group 1 all
huawei(config)#display cable rf-power-monitor 0 downstream status group 2 all
huawei(config)#display cable rf-power-adjust log 0 downstream all
huawei(config)#display cable rf-power downstream 0/1/0 group 1 downstream all
huawei(config)#display cable rf-power downstream 0/1/0 group 2 downstream all
huawei(config)#display cable rf-power downstream 0/1/0 group 1 eqam-channel
all
huawei(config)#display cable rf-power downstream 0/1/0 group 2 eqam-channel
all
huawei(config)#display cable rf-power downstream 0/1/0 group 1 ofdm-
downstream all
huawei(config)#display cable rf-power downstream 0/1/0 group 2 ofdm-
downstream all
Downstream spectrum range: 85–1218 MHz
32 DOCSIS 3.0 downstream channels (U.S. standard); spectrum range: 111–303 MHz
32 EQAM channels (U.S. standard); spectrum range: 306–500 MHz
20 CATV analog channels; spectrum range: 680–800 MHz
1 DOCSIS3.1 OFDM downstream channel; spectrum range: 800–992 MHz, equivalent
to 32 6-MHz channels
Output power of a single CMC
Transmit level of the RF OUT port @1218 MHz: 48 dBmV; equalization: 18 dB
Output power of digital TV signals at the Rx end: 10 dBmV/CH
Upstream spectrum range: 5–65 MHz
Upstream CM transmit power: 40 dBmV
Upstream cable line attenuation: 20 dB
CMC Receive power of the DOCSIS module: 6 dB
Copyright © Huawei Technologies Co., Ltd.
6 Configuring Intelligent RF Adjustment
channel: 36 dBmV
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