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All productsVDSL2 is based on the original Very High Bit Rate Digital Subscriber Line (VDSL) but runs a different frequency of up to 30 MHz to produce extremely high bandwidth capabilities. The service of VDSL2 can be accessed through the copper wire phone lines that are already in place, it makes much easier to get a fast connection which is available to businesses and organizations. Services can be transmitted only after a VDSL2 port is activated on an Huawei MA5616. This document describes how to activate a VDSL2 port on VDLE board and bind a VSDL2 line profile to the port.
Prerequisites
MA5616 need to be added to an OLT. For details, please see How to add an ONU to an OLT. Run the ‘display xdsl mode’ command to check whether the VDSL2 mode is the required mode. The default mode is TR129.
If the current mode is not the required one, run the command ‘switch vdsl mode to’ in diagnose mode to switch to the required one.
NOTE:
Fiber to the door (FTTD) network supports only the TR129 and TR165 modes.
G.INP takes effect preferentially if both G.INP and SRA are enabled.
Typical VDSL2 Line Parameter Configurations
The key parameters to be configured do not vary with the VDSL2 mode but belong to different profiles. Therefore, commands for configuring the key parameters vary with the VDSL2 mode.
Table 1 Typical configurations for key parameters of a VDSL2 line (0.4 mm twisted pair)
| Parameter | Access Distance | Remarks | ||||
| < 100 m | < 300 m | 300-500 m | 500-800 m | 800-1000 m | ||
| Selected VDSL2 profile | 30a | 17a | 12a | 8b, 12a | 8b | A 30a VDSL2 profile is recommended on an FTTD network. |
| PSD mask | B8-16 (998-M2x-B) | B8-11 (998ADE17-M2x-A) | B8-6 (998-M2x-B) | B8-6 (998-M2x-B) | B8-6 (998-M2x-B) | None |
| Enable US0 (U0) | No | Yes | Yes | Yes | Yes | Enable US0 if the distance is longer than 500 m. |
| Maximum transmit rate downstream | 100 Mbit/s | 50 Mbit/s | 40 Mbit/s | 25 Mbit/s | 20 Mbit/s | Enable US0 if the distance is longer than 500 m. |
| Maximum transmit rate upstream | 15 Mbit/s | 15 Mbit/s | 10 Mbit/s | 5 Mbit/s | 2 Mbit/s | · Limiting the upstream and downstream rates ensures a higher signal-to-noise ratio (SNR) margin for the line and therefore enhances its capability for withstanding noise and interference.
· The rates can be specified using these two parameters and also can be specified in the traffic profile. When they are specified in both ways, the actual activation rate is determined by the smaller one. |
| Minimum INP | 2 symbols | 2 symbols | 2 symbols | 2 symbols | 2 symbols | None |
| Target SNR margin | 8 dB | 8 dB | 8 dB | 8 dB | 8 dB | None |
| Path mode | PTM | PTM | PTM | PTM | PTM | Only the PTM mode is supported on an FTTD network. |
Procedure
1. Run the command in Figure 1 or Figure 2 to configure a VDSL2 line profile(Optional)
Perform this step if the default line profile (ID: 1) cannot meet site requirements. In this section, the default line profile is used.
Figure 1:
Figure 2:
2. Activate a VDSL2 port and bind the VDSL2 line profile to the port.
Perform this step after the MA5616 becomes functional. The PON port data is shown in the following table.
| Networking data | PON port: 0/1/0 |
| ONU ID: 1 |
In TR129 mode:
huawei(config-if-gpon-0/1)#ont port activate 0 1 vdsl-port 1 template-index 1
In TR165 mode:
huawei(config-if-gpon-0/1)#ont port activate 0 1 vdsl-port 1
After reading this article, I believe you have mastered the procedure of how to active a VDSL2 port and configure user port on your Huawei MA5616/MA5622A/MA5623 etc ONU.
If still have questions, please contact Thunder-link.com sales team or support team freely!
