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As competition for dial tone heightens, service
providers must find integrated access devices
that allow cost effective deployment of voice
and data services at the customer’s premises.
ADTRAN answers this call with the Total
Access™ 750 product line. The Total Access 750, a low-cost
integrated access device, allows service providers a means to
offer combined voice and data traffic over a single T1
termi-nating at a customer’s premises. The Total Access 750
supports a broad service offering including analog voice (FXO/FXS),
NxData, Fractional T1, ISDN and DDS.
The Total Access 750 provides seven slots for the user to
combine a variety of voice and data services based on the
specific requirements of each application. Up to six Quad FXS
or FXO access modules provide up to 24 analog voice lines.
Data options include a Fractional T1 port, as well as DDS,
ISDN, and Nx56/64 access modules. The Fractional T1
Drop-and-Insert port on the rear of the unit provides a
conven-ient method of dropping a number of DS0s to a PBX or
other equipment via a DSX-1 signal.
The design of the Total Access 750 lends itself to
cost-efficient growth or a "grow-as-you-go" architecture. Many
applications require only a limited amount of analog circuits
and, therefore, do not warrant purchasing or installing 12 or
24 ports as required with other non-modular designs. The
benefits of the Total Access 750 modularity are also found in
cost-per-port comparisons and data applications. Because a
provider only installs the amount of voice ports needed for
the subject application, initial turn-up cost and per-port
cost are lower. This is because the provider can defer channel
unit cost until it is needed. And in data applications, the
Total Access 750 provides the flexibility to mix voice and
data units also based on the particular requirements of each
application.
When maintenance becomes necessary, the Total Access 750
design allows technicians to reach the access modules,
commons, power supplies, and battery back-up system easily.
Access modules are hot swappable and acces-sible at all
times. An individual access module may be replaced without
disrupting other units. So, the 4-circuit-per-card design
ensures a maximum of only four analog circuits are affected
when replacing a channel unit (as opposed to 12 with other
non-modular systems).
The 2U design of the Total Access 750 uses a minimum amount
of wall space. The 8.5-inch x 11-inch chassis uses a space
about the size of a standard piece of notebook paper. When
rack mounting is desired, two Total Access 750 systems can be
mounted side-by-side in either a 19-inch or 23-inch relay
rack.
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