Equipment Issue 2
030-101667 Rev. A, February 2008
Section DTW-A52-804-202
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E
Copyright 2008 Westell, Inc. All rights reserved. Westell and 200 MECHANICS
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are registered trademarks of Westell, Inc.
0802I2RA
DTWA528-04 Series of 4
-
Slot
Universal
Data Mountings
CONTENTS
PAGE #
1. GENERAL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. OPTIONS
& FEATURES
. . . . . . . . . . . . . . . . . . . . . . .
3. INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. TROUBLESHOOTING
. . . . . . . . . . . . . . . . . . . . . . . . .
5. CUSTOMER & TECHNICAL SERVICES
. . . . . . . . .
6. WARRANTY & REPAIRS
. . . . . . . . . . . . . . . . . . . . . . .
7. SPECIFICATIONS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.
GENERAL
1.1
Document Purpose
This document describes the Westell DTWA528-04I2 series of
4-Slot, Universal, Data Mounting Assemblies. A typical mounting
is shown in Figure 1.
- NOTE -
Hereafter, the DTWA528-04I2 may be referred to as the
528-04I2" 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 document replaces document 030-101585
for the models listed in Table 1.
1.3
Product Purpose and Application
1.3.1
The 528-04I2 is a universal, data wall-mount assembly which
has four slots or circuits to terminate either two 400-mechanics-
type modules or four 200 MECHANICS
r
-type modules
(high-density). This assembly accepts modules designed for the
purposes 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
1.3.2
All Network Interface (Telco) connections are made at barri-
er-type screw terminal blocks (or wirewrap pin headers for the List
9 Option). Customer Interface (Cl) connections are made through
either RJ48C/S modular jacks or through barrier-type screw termi-
nal blocks (or wirewrap pin headers for the List 9 Option). A
locking metallic cover protects the Customer and Telco connec-
tions when the List 4 Option is selected.
1.4
Product Mounting
The 528-04I2 is typically wall-mounted at the customer premises
on the network side of the point of demarcation. Holes for mount-
ing screws are provided in the bottom of the assembly. The
Figure 1. Isometric View of DTWA528-04I2
528-04I2 also may be set on a desk, shelf, or tabletop for horizontal
mounting. The 528-04I2 can also be installed in a 19-inch or
23-inch equipment rack by specifying the mounting bracket kit,
Model MBA1923-2.
1.5
Product Features
Features of the 528-04I2 are as follows:
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Small footprint
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Accepts either two 400-type modules or up to four 200-type
modules for use in Hi-Cap/T1/Digital/Analog applications
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Network connections made to screw-type terminal blocks or
wirewrap pins, depending on model ordered
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Customer connections include screw-type terminal blocks (or
wirewrap pins) and RJ48C jacks or RJ48S jacks
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4 switches enable user to switch between RJ48C or RJ48S jack
applications
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Power/ground connections made to screw terminal block
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Optional power supply available with the List 6 Option
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Tinted, see-through, front window allows visual monitoring 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 4-slot module housing
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In closed position, assembly allows convenient rear access to
optional customer RJ48C/S jacks while protecting the Telco and
customer terminal block connections
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Compact, versatile, wall-mountable or tabletop-mountable
metallic case
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Wiring diagram provided on the inside cover
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Chassis ground lug
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Cable ties (provided)
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NEBS Level 3 certified
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UL 60950 listed by an NRTL
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Certified to CAN/CSA-C22.2 No. 60950
