Tài liệu Reviving Exhausted Structure docx

Situation:
Local Exchange Carriers (LECs) need to provide new services in areas where there are shortages of
copper pairs in the distribution plant (F2) beyond existing Digital Loop Carrier (DLC) systems. In
today's environment of reduced capital budgets (CAPEX), adding network capacity quickly and
economically is most challenging where (1) the estimated demand for service does not justify a
major cable, crossbox, or DLC installation. Or (2) an immediate service order response is needed.
The ADC Alternative—micro-DLC Solutions
ADC's PG-Flex
Plus
micro-DLC system meets the challenge by providing quick and economical
distribution relief from central offices (CO) or DLC locations.
The PG-Flex
Plus
micro-DLC is a 2 component system consisting of a Central Office Terminal (COT) and
remote terminals (RTs). The COT supports an integrated (D4/TR-008) interface to a class 5 switch and
is temperature hardened for deployment from Central Offices (COs), vaults (CEVs) or DLC locations.
Line powered and environmentally hardened RTs deliver 6-channels over 1 copper pair or
24-channels over 2 copper pairs.
PG-Flex
Plus
Reviving Exhausted Structure
application note
Figure 1: PG-Flex
Plus
micro-DLC
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Relief From the DLC Cabinet
The PG-Flex

Plus
COT can be placed in a DLC cabinet, allowing line powered RTs to be placed deep into the
outside plant (OSP).
Figure 2: PG-Flex
plus
COT in the DLC
Relief for the Crowded Cabinet
If the DLC cabinet full, the PG-Flex
Plus
Field Shelf, a smaller (96-channel) OSP hardened version of the COT,
can be placed next to an existing DLC cabinet. The field shelf accepts a universal DS1 feed over existing T1,
HDSL, HDSL2 or HDSL4 transmission and supports 6-channel and 24-channel line powered remotes. The
field shelf also supports delivery of ADSL services.
Figure 3: ADC PG-Flex
Plus
Field Shelf at the DLC
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Running the Numbers
The traditional approaches, cable upgrades, crossbox replacement and DLC installations, for adding
network capacity beyond the DLC are expensive, time consuming and strand precious capital resources.
For example, the cost of adding 96-channels beyond an existing DLC can easily cost $50-$75K for a DLC
installation, $10K for a new crossbox and $100K to add new cable.
Figure 4: Conventional Approach New Construction Costs $160-$185
The ADC Alternative
Using the PG-Flex
Plus
micro-DLC, adding 96-channels beyond an existing DLC costs less than $25K

Figure 5: PG-Flex
Plus
Beyond the DLC
ADC Telecommunications, Inc., P.O. Box 1101, Minneapolis, Minnesota USA 55440-1101
Specifications published here are current as of the date of publication of this document. Because we are continuously improving our products, ADC
reserves the right to change specifications without prior notice. At any time, you may verify product specifications by contacting our headquarters
office in Minneapolis. ADC Telecommunications, Inc. views its patent portfolio as an important corporate asset and vigorously enforces its patents.
Products or features contained herein may be covered by one or more U.S. or foreign patents. An Equal Opportunity Employer
1243452 9/02 Original © 2002 ADC Telecommunications, Inc. All Rights Reserved
Web Site: www.adc.com
From North America, Call Toll Free: 1-800-366-3891 • Outside of North America: +1-952-938-8080 Fax: +1-952-917-3237
For a complete listing of ADC's global sales office locations, please refer to our web site.
Ordering Information
CLEI Code
DescriptionsPart Number
Description
COT Shelf
PCS-719, List 1A 150-1619-11 23" Amphenol PG-FlexPlus Shelf S9MTCB0A
PMU-712, List 3 150-1612-03 Management Unit (supports TL1, S9C3CCCA
Telnet,and multi-shelf LAN)
PMX-744, List 1A 150-1644-11 DS1 Multiplexer - 8 DS1 VAPHCC0C(AB)
FLL-814, List 1 150-2314-01 24 Ch. Integrated COLU (works VACHDUNC
with FRL-842 Integrated RTLU)
PLL-735, List 2 150-1635-02 Dual ICOLU S9L1AREA
Field Shelf
PCS-822, List 1 150-2322-01 96-line Remote Field Shelf S9MSFM0BRA
PFU-830, List 1 150-2330-01 Fan Unit VAPQAC7TAA
PCT-850 150-2350-01 Cut-through Card for DS1 feed VAPQAC8TAA
Remotes
FRL-842, List 1 150-2342-01 24 Ch. Integrated RTLU VARHCTPC

(requires FLL-814 at CO)
FRC-753, List 4C 150-1353-43 8 Ch. POTS RTCU (u-Law, LS/GS) VARHCK1C
FRE-865, List 1 150-2365-01 24 Ch. RT Slimline Enclosure VAMRNS0A(RA)
(Prot. Strips, 35’ 6/25-pr. Gel-filled
cable stubs, wall/pole mount)
FRE-865, List 1B 15-2365-12 24 Ch. RT Slimline Enclosure VAMRNS0A(RB)
(Prot. Strips, 35’ 6/25-pr. Air-filled
cable stubs, wall/pole mount)
FRE-868, List 4 150-2368-04 24 Ch. Indoor RT Enclosure VAMRSS0A
(Amphenol, Protected, wall mount)
PRL-770, List 2B 150-1670-22 4 LS POTS Outdoor/Indoor RT S9MSBA0A
PRL-779, List 1C 150-1679-31 6 LS/GS POTS Outdoor/Indoor RT S9MSCHCA
These are the components necessary for the applications shown. Contact your ADC Sales Representative for
a complete list of system components.
Technical Support
Technical assistance is available 24 hours a day, 7 days a week by contacting ADC’s Customer Service Group
in North America or Canada, 800.638.0031 (toll free) or 714.730.3222. E-mail support is also available at