![Icon [all products]](https://www.thunder-link.com/tl-content/uploads/2022/05/Icon-all-products-1.svg "Icon [all products]"){kind=icon}
All productsHuawei MA5616 is an industry-leading remote multi dwelling unit (MDU), supports flexible configurations, The MA5616 provides two GPON or GE uplink ports and provides multiple services by supporting flexible board configurations. MA5616 provides broadband, voice, and video services through ADSL2+/ VDSL2/FE boards, voices service through POTS boards, leased line services through SHDSL or P2P boards.
This article will mainly introduction the ADSL2+ VDSL2 boards supported on MA5616 and what are the difference of these boards.
What is VDSL2?
Very high-speed digital subscriber line (VDSL) and very high-speed digital subscriber line 2 (VDSL2) are digital subscriber line (DSL) technologies providing data transmission faster than asymmetric digital subscriber line (ADSL).
VDSL offers speeds of up to 52 Mbit/s downstream and 16 Mbit/s upstream, over a single flat untwisted or twisted pair of copper wires using the frequency band from 25 kHz to 12 MHz. Second-generation systems VDSL2 use frequencies of up to 30 MHz to provide data rates exceeding 100 Mbit/s simultaneously in both the upstream and downstream directions. The maximum available bit rate is achieved at a range of about 300 meters.
VDSL standards
| Version | Standard name | Common name | Downstream rate | Upstream rate | Approved on |
| VDSL | ITU G.993.1 | VDSL | 55 Mbit/s | 3 Mbit/s | 2001-11-29 |
| VDSL2 | ITU G.993.2 | VDSL2 | 200 Mbit/s | 100 Mbit/s | 2006-02-17 |
| VDSL2-Vplus | ITU G.993.2 Amendment 1 (11/15) |
VDSL2 Annex Q VPlus/35b |
300 Mbit/s | 100 Mbit/s | 2015-11-06 |
Differences Between MA5616 VDSL2 Service Boards
Based on the number of supported users, VDSL2 service boards supported by the MA5616 can be classified into 5 types of channel:
16-channel VDSL2 service board
24-channel VDSL2 service board
32-channel VDSL2 service board
48-channel VDSL2 service board
64-channel VDSL2 service board.
These boards support VDSL2 and VDSL2 over POTS/ISDN access services.
The following tables list differences between VDSL2 service boards supported by the MA5616.
| Table 1 Differences between 16- and 24-channel VDSL2 service boards | ||||
| Specifications | H835VDGE | H835VDSH | H835VDTH | H835VDSE |
| Applicable line | 16-channel VDSL2 over POTS | 24-channel VDSL2 over POTS | 24-channel VDSL2 over ISDN | 24-channel VDSL2 over POTS |
| Vectoring | Not supported | |||
| G.INP | Supported | |||
| VDSL2 PTM bonding | Supported (Supports the bonding of any four ports on the MA5616 equipped with a CCUE control board.) | |||
| MELT | Not supported | |||
| Spectrum parameter profile | Supports VDSL2 8a, 8b, 8c, 8d, 12a, 12b, 17a, and 30a profiles. | Supports VDSL2 8a, 8b, 8c, 8d, 12a, 12b, and 17a profiles. | ||
| Annex type | · G.992.1 Annex A
· G.992.3 Annex A, B, L, or M · G.992.5 Annex A, B, or M · G.993.2 Annex A or B |
· G.992.1 Annex A
· G.992.3 Annex A, B, L, or M · G.992.5 Annex A, B, or M · G.993.2 Annex A or B |
· G.992.1 Annex B
· G.992.3 Annex B · G.992.5 Annex B · G.993.2 Annex A or B |
· G.992.1 Annex A
· G.992.3 Annex A, B, L, or M · G.992.5 Annex A, B, or M · G.993.2 Annex A or B |
| Configuration mode | Supports TR129, TI, and TR165. | |||
| Embedded splitter | Supported (600-ohm impedance splitter) | Not supported | Not supported | Supported (600-ohm impedance splitter) |
| Connector | Champ 64-pin | |||
| Table 2 Differences between 32-channel VDSL2 service boards | |||||
| Specifications | H83BVDLE | H83BVDLF | H83BVCLE | H83BVCLF | H836VCLE |
| Applicable line | 32-channel VDSL2 over POTS | 32-channel VDSL2 | 32-channel VDSL2 over POTS | 32-channel VDSL2 | 32-channel VDSL2 over POTS |
| Vectoring | Not supported | Not supported | Supported | Supported | Not supported |
| G.INP | Supported | Supported | Supported | Supported | Supported |
| VDSL2 PTM bonding | Supported (Supports the bonding of any four ports on the MA5616 equipped with a CCUE control board.) | Supported (Supports the bonding of any eight ports on the MA5616 equipped with a CCUE control board.) | |||
| MELT | Not supported | Not supported | Not supported | Not supported | Not supported |
| Spectrum parameter profile | Supports VDSL2 8a, 8b, 8c, 8d, 12a, 12b, and 17a profiles. | ||||
| Annex type | · G.992.1 Annex A
· G.992.3 Annex A, B, L, or M · G.992.5 Annex A, B, or M · G.993.2 Annex A or B |
· G.992.1 Annex A
· G.992.3 Annex A, B, L, or M · G.992.5 Annex A, B, or M · G.993.2 Annex A or B |
· G.992.1 Annex A
· G.992.3 Annex A, B,, L, or M · G.992.5 Annex A, B, or M · G.993.2 Annex A or B |
· G.992.1 Annex A
· G.992.3 Annex A, B, J, L, or M · G.992.5 Annex A, B, J, or M · G.993.2 Annex A/B |
· G.992.1 Annex A
· G.992.3 Annex A, L, or M · G.992.5 Annex A or M · G.993.2 Annex A |
| Configuration mode | Supports TR129, TI, and TR165 [2]. | Supports TR129 and TR165 [2]. | |||
| Embedded splitter | Supported (600-ohm impedance splitter) | Not supported | Supported (600-ohm impedance splitter) | Not supported | Supported (600-ohm impedance splitter) |
| Connector | Champ 64-pin | ||||
| Table 3 Differences between 48- and 64-channel VDSL2 service boards | |||||
| Specifications | H83BVDMM | H83BVCMM | H83DVCMM | H836VCPE | H83DVCPE |
| Applicable line | 48-channel VDSL2 | 48-channel VDSL2 | 48-channel VDSL2 | 64-channel VDSL2 over POTS | 64-channel VDSL2 over POTS |
| Vectoring | Not supported | Supported | Supported | Not supported | Supported |
| G.INP | Supported | ||||
| VDSL2 PTM bonding | Supported (Supports the bonding of any eight ports on the MA5616 equipped with a CCUE control board.) | Not supported | |||
| MELT | Supported | Supported | Supported | Not supported | Not supported |
| Spectrum parameter profile | Supports VDSL2 8a, 8b, 8c, 8d, 12a, 12b, and 17a profiles. | ||||
| Annex type | · G.992.1 Annex A
· G.992.3 Annex A, B, L, or M · G.992.5 Annex A, B, or M · G.993.2 Annex A or B |
· G.992.1 Annex A
· G.992.3 Annex A, B, J, L, or M · G.992.5 Annex A, B, J, or M · G.993.2 Annex A or B |
· G.992.1 Annex A
· G.992.3 Annex A/B/J/L/M · G.992.5 Annex A/B/J/M · G.993.2 Annex A/B |
· G.992.1 Annex A or B
· G.992.3 Annex A, L, or M · G.992.5 Annex A or M · G.993.2 Annex A/B |
· G.992.1 Annex A/B
· G.992.3 Annex A/L/M · G.992.5 Annex A/M · G.993.2 Annex A/B |
| Configuration mode | Supports TR129, TI, and TR165 [2]. | Supports TR129 and TR165 [2]. | |||
| Embedded splitter | Not supported | Not supported | Not supported | Supported | Supported |
| Connector | Champ 64-pin | Delander 64-pin | |||
NOTE:
- When AC power supply is used, the H83BVDMM board must work with the H831PAIC power board.
- Users can switch a configuration mode. To do so, log in to the MA5616 as a super user and run the switch vdsl mode to command in diagnose mode. The default configuration mode is TR129. Considering the development trend, TR165 is recommended because it is more flexible than others.
- Vectoring-supported service boards take effect only when they work with power boards supporting vectoring.
- H83BVCLEsupports Vectoring, while H836VCLE does not support.
What is ADSL2+?
Asymmetric digital subscriber line (ADSL) is a type of digital subscriber line (DSL) technology, a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide. ADSL differs from the less common symmetric digital subscriber line (SDSL). In ADSL, bandwidth and bit rate are said to be asymmetric, meaning greater toward the customer premises (downstream) than the reverse (upstream).
ADSL standards
| Version | Standard name | Common name | Downstream rate | Upstream rate | Approved in |
| ADSL | ANSI T1.413-1998 Issue 2 | ADSL | 8.0 Mbit/s | 1.0 Mbit/s | 1998 |
| ITU G.992.2 | ADSL Lite (G.lite) | 1.5 Mbit/s | 0.5 Mbit/s | 1999-07 | |
| ITU G.992.1 | ADSL (G.dmt) | 8.0 Mbit/s | 1.3 Mbit/s | 1999-07 | |
| ITU G.992.1 Annex A | ADSL over POTS | 12.0 Mbit/s | 1.3 Mbit/s | 2001 | |
| ITU G.992.1 Annex B | ADSL over ISDN | 12.0 Mbit/s | 1.8 Mbit/s | 2005 | |
| ADSL2 | ITU G.992.3 Annex L | RE-ADSL2 | 5.0 Mbit/s | 0.8 Mbit/s | 2002-07 |
| ITU G.992.3 | ADSL2 | 12.0 Mbit/s | 1.3 Mbit/s | 2002-07 | |
| ITU G.992.3 Annex J | ADSL2 | 12.0 Mbit/s | 3.5 Mbit/s | 2002-07 | |
| ITU G.992.4 | Splitterless ADSL2 | 1.5 Mbit/s | 0.5 Mbit/s | 2002-07 | |
| ADSL2+ | ITU G.992.5 | ADSL2+ | 24.0 Mbit/s | 1.4 Mbit/s | 2003-05 |
| ITU G.992.5 Annex M | ADSL2+M | 24.0 Mbit/s | 3.3 Mbit/s | 2008 |
Differences Between ADSL2+ Service Boards
Based on the number of supported users, ADSL2+ service boards supported by MA5616 can be classified into 32-channel ADSL2+ and 64-channel ADSL2+ service board. These boards support ADSL2+ and ADSL2+ over POTS access services.
| Specifications | H83AADLE or H835ADLE | H836ADLE | H836ADPE |
| Applicable line | 32-channel ADSL2+ over POTS | 32-channel ADSL2+ over POTS | 64-channel ADSL2+ over POTS |
| Port | · PSTN
· LINE |
||
| G.INP | Supported | Not supported | Not supported |
| INM | Supported | ||
| SELT | supported | ||
| MELT | Not supported | ||
| Annex type | · G.992.1 Annex A
· G.992.3 Annex A, L, or M (EU32-EU64) · G.992.5 Annex A or M (EU32-EU64) |
||
| Configuration mode | Supports RFC 2662, RFC 4706, and TR165. (Users can switch a configuration mode. To do so, log in to the MA5616 as a super user and run the switch adsl mode to command in diagnose mode. The default configuration mode is RFC 2662. Considering the development trend, TR165 is recommended because it is more flexible than others.) | ||
| Connector | Champ 64-pin | Champ 64-pin | Delander 64-pin |
As we can see, ADSL2+ boards has no vectoring function, just VDSL board H83BVCLE H83BVCLF H83BVCMM H83DVCMM H83DVCPE can support；and if you acquire MA5616 support vectoring, please make sure that the MA5616 power board configured support vectoring. Only below 3 type of power boards support vectoring.
| Power Board | Power Supply Mode | Vectoring |
| H832PDVAA | One -48 V DC input, a maximum output power of 400 W | Supported (using the H836VPBA daughter board) |
| H832PDNAA | One -48 V DC input, a maximum output power of 400 W | Supported (using the H836VPDA daughter board) |
| H831PAVDA | One 220 V AC or 110 V input, a maximum output power of 400 W | Supported (using the H836VPBA daughter board) |
