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2 64179008APL1-5A
The Total Access 1000 DAT is 12.7 inches wide by
14.7 inches high by 5.5 inches deep and is made of
heavy gauge metal. The enclosure can be wall, pole,
or pedestal mounted in an outside plant environment.
Figure 2 shows the inside layout of the Total Access
1000 DAT. Individual access modules insert from the
front. All of the facilities terminate within the
enclosure. Surge protection is also provided within
the enclosure.
Architecture
The Total Access 1000 DAT system is comprised of
an outside plant (OSP) housing, Quad HDSL2 Line
Interface Unit (Quad H2LIU), a span powered ATM
Power Supply Unit (PSU), ATM Bank Controller Unit
(ATM BCU), and ADSL Access Modules.
The OSP housing contains all external terminations
including the HDSL2 interface, POTS termination,
ADSL plus POTS loop termination, and grounding
terminations. The OSP housing provides surge
protection for both the network and subscriber
interfaces.
The Total Access 1000 DAT receives span powering
from a network using a Total Access HDSL2 Central
Office (H2TUC) Access Module. The H2TUC
terminates a DS1 IMA interface from the DSLAM or
ATM switch. The H2TUC converts the DS1 IMA
signal to 2-wire HDSL and adds span powering.
The Quad H2LIU module provides the network
interface for the Total Access 1000 DAT. The H2LIU
terminates three or four HDSL2 signals from the
network and passes span powering to the PSU. The
PSU terminates the span power from the network and
provides regulated operating voltages to all
components within the Total Access 1000 DAT. The
HDSL2 signal is converted to an ATM DSX-1 IMA
signal and passed to the ATM BCU. The ATM BCU
routes all ATM traffic between the network and the
loop using PVCs.
Figure 2. Total Access 1000 DAT Inside Layout
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Features
The Total Access 1000 DAT platform features include
the following:
• Pole or Wall mount outside plant cabinet
• HDSL2 span powered at +/-190 VDC
• Supports up to 12 ADSL plus POTS lines
• Supports up to 24 ports of ADSL or SHDSL or
combination of both
• Uses incoming POTS from the Network and
provides ADSL plus POTS signal to the loop
• Supports local and remote provisioning
• GR-487 Compliance for Remote Enclosures (In
process)
• Meets NEBS Level 3 requirements
• 10 Year Warranty
Environmental Requirements
Operating Temperature: -40ºC to +65ºC.
Storage Temperature: -40ºC to +85ºC.
Relative Humidity: 95 percent, noncondensing.