Configuring RF Ports
This section describes how to configure RF ports on the MA5600T/MA5603T/MA5608T so that the MA5600T/MA5603T/MA5608T can provide the RF access feature.
Procedure
- Run the cable command to configure RF port parameters.
- freq-range: indicates the upstream frequency range, which can be european or north-american.
- mrc-mode and mtc-mode: indicate the downstream and upstream channel bonding, respectively. After channel bonding is enabled, the MA5600T/MA5603T/MA5608T transmits the service flow data of a CM through two or more channels.
- downstream annex: indicates the downstream channel type, which can be AnnexA or AnnexB. Ensure that the downstream channel type and the upstream frequency range comply with the same standard.
- If the downstream channel is of the AnnexA type, the upstream and downstream frequency must comply with the European standard. The downstream frequency width of a single channel is 8 Mbit/s.
- If the downstream channel is of the AnnexB type, the upstream and downstream frequency must comply with the North American standard. The downstream frequency width of a single channel is 6 Mbit/s.
- Optional: Run the display cable modulation-profile command to query the information about an existing modulation profile for upstream channels.
A modulation profile defines parameters involved in signal processing for upstream channels.
- Run the cable upstream command to configure upstream RF parameters and activate an upstream channel.
- frequency: indicates the center frequency of a channel. Configure this parameter before activating a channel.
- channel-width: indicates the frequency width of a channel.
- modulation-profile: indicates the ID of the modulation profile used by the upstream channel. The profile defines the parameters used by the upstream channel during signal processing.
- minislot-size: a mini-slot is an upstream transmission unit. A group of mini-slots constitute an interval, and a group of ticks constitute a mini-slot. Upstream channels use the time division multiplexing (TDM) technology to transmit data. An algorithm for allocating upstream channel bandwidths is used to set intervals for the upstream channels so that the upstream channels transmit data by timeslots.
- rf-power: indicates the upstream channel receive power.
The center frequency and frequency width determine a frequency range for packet transmission. For example, if a channel complies with the European standard, the center frequency is 55 MHz, and the frequency width is 6400 kHz, then the channel frequency ranges from 51.8 MHz to 58.2 MHz.
- Run the cable downstream command to configure downstream RF parameters and activate a downstream channel.
- frequency: indicates the center frequency of a channel. Configure this parameter before activating a channel.
- modulation: indicates the modulation mode of a downstream channel. A greater modulation mode increases the channel bandwidth but reduces the anti-interference capability. Set this parameter based on site requirements. The default modulation mode is QAM 256.
- interleave-depth: indicate the downstream channel interleaving depth. This parameter is available only when the channel type complies with the North American standard.
- rf-power: indicates the downstream channel transmit power. Set this parameter to a proper value based on site requirements.
Example
The following is an example of the configurations used to configure RF port 1/1/0 on the MA5600T/MA5603T/MA5608T:
- The interval in which the MA5600T/MA5603T/MA5608T sends the MAC domain description to CMs through the downstream channel is 1800 ms.
- The upstream frequency complies with the European standard.
- Channel bonding is enabled in both the downstream and upstream directions.
- The downstream channel is of the AnnexA type.
- The center frequency of the downstream channel is 440.00 MHz.
- The center frequency of the upstream channel is 10.00 MHz.
- Other parameters use default settings.
huawei(config-if-cable-1/1/0)#cable mdd-interval 1800 freq-range european mrc-mode enable mtc-mode e nable downstream annex annexA huawei(config-if-cable-1/1/0)#cable upstream 1 frequency 10.00 enable huawei(config-if-cable-1/1/0)#cable downstream 1 frequency 440.00 enable
