Equipment Issue 2
030‐101665 Rev. C, May 2012
Section DTW‐A52‐802‐202
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Copyright 2012 Westell, Inc. All rights reserved. CLEI is a trademark of Telcordia Technologies.
Westell
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and 200 MECHANICS
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are registered trademarks of Westell, Inc.
1205I2RC
DTWA528‐02 Issue 2 Series of 2‐Slot Universal Data Mountings
CONTENTS
PAGE #
1. GENERAL
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2. OPTIONS & FEATURES
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3. INSTALLATION
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4. TROUBLESHOOTING
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5. CUSTOMER & TECHNICAL SERVICES
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6. WARRANTY & REPAIRS
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7. SPECIFICATIONS
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1.
GENERAL
1.1
Document Purpose
This document describes the Westell DTWA528‐02 Issue 2 se
ries of 2‐Slot, Universal, Data Mounting Assemblies. A typical
assembly is shown in Figure 1.
‐ NOTE ‐
Hereafter, the DTWA528‐02 Issue 2 series may be referred to as
the “528‐02I2” or “assembly.” Specific model or list numbers will
be referenced where differences apply.
1.2
Document Status
Whenever this practice is updated, the reason will be stated in
this paragraph. This practice replaces practice 030‐101584 for
the models listed in Table 6. Revision B updates Table 6, the
first paragraph in Part 3, and Paragraph 3.6. Revision C updates
the boxed Precautionary Statement in Part 3, Table 4, the
second sentence in Part 3, and Paragraphs 2.4 and 3.6.
1.3
Product Purpose and Application
The 528‐02I2 is a universal, data wall‐mount assembly which
has two slots or circuits to terminate either one 400‐mechanics‐
type module or two 200 MECHANICS
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‐type modules (high‐
density). The assembly accepts modules designed for the pur
poses listed below (also see Figure 2 for typical applications).
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Network Interface Units (NIUs) in 1.544 Mb/s Hi‐Cap
digital (T1) and High‐bit‐rate Digital Subscriber Line
(HDSL) applications
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DSTs in Analog Data Service applications
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DDIs in Digital Data Service applications
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Any combination of the above applications
All Network Interface (Telco) connections are made at screw ter
minal blocks (or wirewrap pin headers for the List 4‐9 option).
Customer Interface (Cl) connections are made at either RJ48C/S
modular jacks or at screw terminal blocks (no screw terminals for
the List 4‐9 option). A locking metallic cover protects the Custom
er and Telco connections with the List 4‐9 option.
Figure 1. Isometric View of DTWA528‐02I2
1.4
Product Mounting
The 528‐02I2 is typically wall‐mounted at the customer prem
ises on the network side of the point of demarcation. Holes for
mounting screws are provided in the bottom of the assembly.
The 528‐02I2 also may be set on a desk, shelf, or tabletop for
horizontal mounting. The 528‐02I2 also can be installed in 19‐inch
or 23‐inch equipment racks with Westell's MBA1923‐2 mounting
bracket kit.
1.5
Product Features
Features of the 528‐02I2 are as follows:
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Small footprint
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Accepts either one 400‐type module or up to two 200
MECHANICS‐type modules for use in Hi‐Cap/T1/Digi
tal/Analog applications
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Network connections made to screw terminal blocks (or
to wirewrap pins for the List L4‐9 option)
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Customer connections to screw terminal blocks or to
RJ48C/S jacks (no screw terminals blocks with L4‐9
option)
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Power/ground connections made to screw terminal block
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2 switches to select either RJ48C or RJ48S jack
applications
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Tinted, see‐through, front window allows visual monitor
ing of plug‐in module's status LEDs plus easy module
access
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Built‐in swing‐out bracket allows (lockable, List 4 option)
cover to swing‐out to provide easy access to all internal
components and doubles as a 2‐slot module housing
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In closed position, assembly allows convenient rear access
to customer RJ48C/S jacks while protecting the Telco and
customer terminal block connections
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Compact, versatile, wall‐mountable or tabletop‐mount
able metallic case
