ZyXEL Communications P-870M-lx v2 Series Bedienungsanleitung PDF herunterladen (Seite 10)

Annex M is an optional specification in ITU-T recommenda-

tions G.992.3 (ADSL2) and G.992.5 (ADSL2+). This specifica-

tion extends the capability of commonly deployed Annex

A by more than doubling the number of upstream bits. The

data rates can be increased easily depending on the dis-

tance from the DSLAM to homes of the customers. It com-

plies with G.992.1 (G.dmt) Annex A compliant/G.992.2 (G.

Lite), Annex A/L/M and G.998.1 (G. Bond-ATM) ATM-based

multi-pair bonding.

Loop bonding technology provides the telecom industry

with a revolutionary technique to combine multiple

ADSL2+ connections into a single, aggregated connection.

Supporting up to 48 Mbps downstream and 2 Mbps

upstream data rates, as well as high-speed data and derived

voice applications, service providers can offer advanced

bandwidth-dependent services such as broadcast video

and video-on-demand (VOD) to customers beyond the

reach of central offices or digital loop carriers. Bonded

ADSL2+ supports multiple high-definition television

streams at significantly longer distances than other existing

xDSL technologies.

ZyXEL’s boneded ADSL2+ with Annex M solution on the

existing networks for Telcos and service providers. The

solution offers downstream bandwidth of up to 48 Mbps

and upstream bandwidth of up to 5 Mbps using the

bonding and Annex M technologies on two phone lines. We

also offer a solution for bonding a larger number of phone

lines; ZyXEL generally recommends the use of standard

G.998/G. Bond technology for bonding multiple ADSL lines.

The alternative solutions based on non-standard bonding

or load-balancing techniques such as IP tunneling may have

a role to play in certain deployments and we can provide

solutions of this type too.

ZyXEL’s bonded ADSL2+ with Annex M solution provides

the existing ISPs with opportunities to target the profitable

SOHO and SMB markets by differentiated and customized

services. The superior downstream and upstream

capabilities of bonded ADSL2+ combined with relatively

low cost makes the solution particularly attractive to SOHO

and SMB users. The significant attraction to the existing ISPs

is that only part of their existing infrastructures needs to be

upgraded and this can be achieved on a gradual basis as

subscription to the services increases.

ZyXEL’s bonded ADSL2+ with Annex M solution allows

service providers to double the bandwidth over the existing

copper infrastructure and thus leverage their investment to

quickly deploy revenue-generating services like IPTV, VoD

and other premium triple-play applications.

With the ZyXEL end-to-end bonded ADSL2+ solution,

service providers can economically offer services with

higher bandwidth coupled with 802.11n home networking

solutions to their subscribers. This is a prime example of

ZyXEL’s commitment to building exactly what operators

need to remain competitive. Please refer to the application

diagram and supported product tables for details.

3. Bonded ADSL2+ with Annex M Solution

Benefits:

■

The fastest way to achieve positive revenue returns

associated with triple-play bonded ADSL2+

gateways is to deliver these services over existing

copper loops, of which there are over 450 million

worldwide

■

Bonded ADSL2+ delivers great data rates over longer

distance than the basic ADSL2+

■

Lower CAPEX on investing equipment, lower OPEX

for matured SNMP and TR069 network management

and provision equipments

Figure 3-3: ZyXEL Bonded ADSL+ Solution

Location ZyXEL Product List for the Bonded ADSL2+ Annex A/B Solution

At CO Sites

IES-6000 (16-slot CO MSAN, chassis) with

ALC1248G (48-port ADSL2+ Annex A/B line card)

ALC1272G (72-port ADSL2+ Annex A line card)

IES-5000 (8-slot CO MSAN, chassis) with

ALC1248G (48-port ADSL2+ Annex A/B line card)

ALC1272G (72-port ADSL2+ Annex A line card)

At Remote Cabinets

IES-5005 (4-slot Remote MSAN, chassis) with

ALC1248G (48-port ADSL2+ Annex A/B line card)

ALC1272G (72-port ADSL2+ Annex A line card)

IES-1248-51 (48-port, Remote DSLAM, box)

IES-1248-51V (48-port, VoIP, Remote MSAN, box)

IES-1000 (2-slot, Remote mini MSAN, box) with AAM1212 (12-port, ADSL2+ Annex A/B line card with built-in splitters)

At Subscriber

Buildings

IES-612-51 (12-port, Remote compact DSLAM)

(To add one extra fiber/Ethernet transceiver or FSG-2100 for 10 km connectivity)

At Subscriber Sites

Residential Bonding Gateway (ADSL2+, wireless g/n, 4-port switch)

P-663H, P-663HN series

FTTN

CO MSAN

IES-6000/IES-5000

Street

Cabinet

ADSL2+ Bonding CPE

P-663 Series

Temperature-Hardened

Remote MSAN/DSLAM

IES-1248 Series

Bonding

IP Core

Network

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