Westell DTWA-K04 Series User manual

Equipment Issue 1
030-101586 Rev. B, June 2006
Section DTW-AK0-400-201
R
ECopyright 2006 EWestell, Inc. All rights reserved. Printed in the United States of America.
*CLEI is a trademark of Telcordia Technologies. Westellris a trademark of Westell, Inc. Page 1 of 14
Westell Model DTWA-K04 Series
4-Position Pre-Wired Mounting Kit
CONTENTS PAGE #
1. GENERAL 1....................................
2. APPLICATIONS 1...............................
3. INSTALLATION 1..............................
4. TESTING & TROUBLESHOOTING 3.............
5. CUSTOMER & TECHNICAL SERVICES 3.........
6. WARRANTY & REPAIRS 3.......................
7. SPECIFICATIONS 3............................
1. GENERAL
1.1 Document Purpose
This document describes the Westell DTWAK04 Series, shown
in Figure 1. This series of mounting kits are pre-wired wall-
mountable kits equipped with a Westell 4-slot mounting and a
66-type punch-down block or terminal block for making facility-
side and customer-side wiring connections.
-NOTE-
Hereafter, the DTWAK04 will be referred to as the “K04”.
1.2 Document Status
This document is being updated to correct a labeling error in
Figure 6, on page 11. The Circuit 1 label was printing over the
Circuit 2 label.
Whenever this practice is updated, the reason will be stated in
this paragraph.
1.3 Product Mounting
The K04 is typically mounted on a wall or equipement back-
board. This mounting enclosure is suitable for mounting on
concrete or other noncombustible surfaces only.
1.4 Product Features
The K04 offers the following features.
SQuick Installation
Figure 1. Front View of DTWAK04 Pre-Wired
Mounting Kit
SPre-wired-mountable package with backplate, mounting
assembly and wiring block
SBridging clips on both the Network and Customer side of
the 66 block or Krone block (List 1, 4, 7 or 8)
SOptional primary lightning protection (List 5)
SEasy access to the plug-in modules
SMeets UL1950 requirements
SMeets NEBS Level 3 requirements
2. APPLICATIONS
The K04 will accommodate up to four 200 MECHANICSr-type
modules or up to two 400-type HDSL, DS1, Analog, Data and/or
DDS-type circuits.
3. INSTALLATION
Installation consists of inspecting the equipment for damage,
following proper safety precautions. Mounting hardware to
install this assembly to a wall or backboard is included. The as-
sembly should be installed so that the 4-slot mounting is in an
upright (vertical) position. The assembly should be located in an
area that provides enough room and adequate lighting. Stan-
dard hand tools are required to install the K04.

Section DTW-AK0-400-201 030-101586 Rev. B R
2
The following paragraphs provide detailed instructions for per-
forming these procedures.
-INSPECTIONNOTE-
If not previously inspected at the time of delivery, visually inspect
the unit for damages prior to installation. If the equipment has
been damaged in transit, immediately report the extent of the
damage to the transportation company and to Westell (see Part
6 for telephone number).
- PRECAUTIONARY STATEMENT -
Never install telephone wiring during a lightning storm.
Never install telephone jacks in wet locations unless the jack
is specifically designed for wet locations.
Never touch uninsulated telephone wires or terminals unless
the telephone line has been disconnected at the network
interface.
Use caution when installing or modifying telephone lines.
3.1 Pre-Mounting Considerations
The K04 series should be installed by authorized personnel only.
In accordance with UL, this mounting enclosure is suitable for
mounting on concrete or other noncombustible surfaces only.
The DTWAK04L5 and DTWAK04L6 should be installed only
in a restricted access area (Dedicated equipment room, NEMA
4 enclosure, equipment closet or the like) in accordance with the
Articles 110-16, 110-17 and 110-18 of the National Electrical
Code, ANSI/NFPA No. 78.
3.1.1 Important Safety Instructions (Please Save)
When using your telephone/telecommunications equipment,
basic safety instructions should always be followed to reduce risk
of fire, electric shock and injury to person, including the follow-
ing:
A. Read and understand all instructions.
B. Follow all warnings and instructions marked on product.
C. Do not place this product on an unstable cart, stand or table: the
product may fall, causing serious damage to product.
D. Slots and openings in the cabinet and the back or bottom are pro-
vided for ventilation. To protect it from overheating, these
openings must not be blocked or covered. This product should nev-
er be placed near or over a radiator or heat register. This product
should not be placed in a built-in installation unless proper ventila-
tion is provided.
E. This product should be operated only from the type of power
source indicated on the marking label.
F. Never push object of any kind into this product through cabinet
slots as they may touch dangerous voltage points or short out parts
that could result in the risk of fire or electrical shock. Never spill liq-
uid of any kind on the product.
3.1.2 Gathering Tools and Supplies
The following tools and supplies are required to mount the K04.
SStandard blade and phillips screwdrivers
SPortable hand drill and proper size drill bits
3.2 Mounting the Assembly
3.2.1 Drywall-Type Surface Installations
When installing the assembly to a drywall-type surface, place it
against the wall in the desired location. Mark the left top and
bottom hole locations to accommodate the wall anchors to be
used. Next, open the 4-position mounting cover and locate and
mark the mounting hole location. Remove the assembly from
the wall and drill the appropriate size hole to accommodate the
wall anchor being used. Do not make the hole too large. The cor-
rect size hole is obtained when the anchor fits snugly into the
hole and against the wall.
Re-position the K04 against the wall and secure the top left cor-
ner first then the top mounting position inside the 4-position
mounting assembly. Complete the installation procedures by se-
curing the bottom portion of the backplate to the wall.
3.2.2 Solid Wood-Type Surface Installations
When installing the bracket to a solid wood-type surface (i.e. ply-
wood backboard, etc.), the #10 size wood screws (supplied) can
be used. Place the assembly against the wall in the desired loca-
tion. Install one wood screw into the left top hole location and
one screw into the right bottom hole location of the backplate.
Next, open the 4-position mounting assembly cover. Locate the
top right mounting hole and install the wood screw. Install the
last wood screw into the left bottom hole location of the back-
plate to secure the assembly against the wall.
-NOTE-
When installing the List 8 unit, remove the cover to provide easier
access to the mounting screw locations.
3.3 Power Connections
Refer to Figure 3 through Figure 7 for wiring details.
3.4 Chassis/Frame Ground Connections
A ground wire (#6 or larger) should be attached to the ground lug
located on the mounting plate or 4-slot mounting. For cell site ap-
plications where the K04 is installed in a weather-proof enclosure,
the K04 ground lug should be connected to the enclosure single
point ground bar that is then connected to the cell site ground
grid. Be sure to follow all local grounding practices and proce-
dures that would apply for installing any mounting assembly.
Power connections, if required, are made to the the 3-position
terminal block (TB9) located inside the 4-slot mounting assem-

Section DTW-AK0-400-201
030-101586 Rev. B
R
3
b l y . C o n n e c t t h e --- 4 8 V d c p o w e r w i r e t o t h e “ --- ” ( r e d ) s c r e w
terminal. Connect the other lead to the “+” (black) screw termi-
nal. Connect the green wire to the Chassis Ground screw
terminal. Westell offers a ---48Vdc, 1 Amp Wall Power Supply
(Model WPS4810) that can be purchased separately.
3.5 Facility/Network Interface Connections
Facility-side wiring connections can be made to either a 66-type
wiring block (List 1, 4, 7 or 8) or to screw terminals (List 5).
3.6 Customer Interface Connections
Customer-side wiring connections can be made to the 66-type
wiring block (List 1, 7 or 8) to RJ48C/S modular jacks (List 4, 5
or 8).
3.7 Module Installation
When all wiring is completed and secured, the module(s) may be
installed inside the assembly cover. Refer to the appropriate
practice for optioning and testing information for each module.
When testing is complete and the circuit is functioning correctly,
close and re-lock the cover (Except List 4 Option).
-CAUTION-
Use care when installing and removing modules - do not force
a module into place. If a module resists insertion, remove it
and check for obstructions in or near the module’s or shelf’s
connectors and mounting slots. The module may then be
carefully aligned and gently re-inserted.
4. TESTING & TROUBLESHOOTING
4.1 Testing
This equipment should not be field repaired. If the equipment
is suspected of being faulty, replace it with another unit, op-
tioned identically, and retest. If the replacement unit appears to
operate correctly, the original unit may be faulty and should be
returned to Westell for repair or replacement (Paragraph 6.2).
4.2 Troubleshooting
If trouble is encountered, verify all installer connections to the
assembly and check that the CO power fuse is not blown. Also
verify all module connections and option switch settings, and
verify the modules are making a positive connection with the
shelf connector. If trouble persists, replace the suspect unit and
repeat procedures outlined. These procedures are not designed
to effect repairs or modifications. Any tests beyond those out-
lined herein, or repairs made beyond replacing a faulty unit, are
not recommended and may void the warranty.
5. CUSTOMER & TECHNICAL SERVICES
5.1 Customer Service & Technical Assistance
If technical or customer assistance is required, contact Westell
by calling or using one of the following options:
Voice: [phone]
email: [email protected]
Visit the Westell World Wide Web site at http://www.Westell.com
for additional information about Westell.
6. WARRANTY & REPAIRS
6.1 Warranty
Westellwarrantsthisproducttobefreeofdefectsatthetimeof
shipment. Westell also warrants this product to be fully function-
al for the time period specified by the terms and conditions
governing the sale of the product. Any attempt to repair or
modify the equipment by anyone other than an authorized West-
ell representative will void the warranty.
6.2 Repair and Return
Westell will repair or replace any defective Westell equipment
without cost during the warranty period if the unit is defective
foranyreasonotherthanabuse,improperuse,orimproper
installation. Before returning the defective equipment, first re-
quest a Return Material Authorization (RMA) number from
Westell. Once an RMA number is obtained, return the defective
unit, freight prepaid, along with a brief description of the prob-
lem, to:
Westell, Inc.
ATTN: R.G.M. Department
880 Enterprise St.
Suite D
Aurora, IL 60504-7940
Replacements will be shipped in the fastest manner consistent
with the urgency of the situation. Westell will continue to repair
or replace faulty equipment beyond the warranty period for a
nominal charge. Contact Westell for details.
7. SPECIFICATIONS
7.1 Ordering Specifications
To order units, call the telephone number shown in Paragraph
5.1 and please specify a specific model number shown in Table 1.

Section DTW-AK0-400-201 030-101586 Rev. B R
4
Model # Description
DTWAK04 4-Position Pre-Wired Mounting Kit
CLEI* Code: Pending. Barcode: Pending. ECI: Pending.
DTWAK04L1 Non-locking cover and no jacks, wired to 66-type block
CLEI* Code: VAM7AA0ARA. Barcode: 441710. ECI: Pending.
DTWAK04L4 Non-locking cover and RJ48C/S modular jacks, wired to a half
66-type block
CLEI* Code: VAM7CARARA. Barcode: 443417. ECI: Pending.
DTWAK04L5 Locking cover, pre-wired to a printed circuit board that provides
lightning protection for up to four circuits. The printed circuit
board provides four 4-position terminal blocks on the input
(From Network) and four RJ48C/S (switch selectable) jacks on
the output (Customer Demarc)
CLEI* Code: VAM7HN0ARA. Barcode: 443024. ECI: Pending.
DTWAK04L7 Locking cover and RJ48C/S modular jacks wired to 66-type
block
CLEI* Code: VAMDP10LRA. Barcode: 447135. ECI: Pending.
DTWAK04L8 Front Access Mounting (with locking cover and RJ48C/S modu-
lar jacks) wired to 66-type block
CLEI* Code: VAMD210LRA. Barcode: 448571. ECI: Pending.
*CLEI is a trademark of Telcordia Technologies.
Table 1. Ordering and Option Information
7.2 Electrical and Physical Specifications
The electrical and signalling specifications are listed below, and
the physical specifications are shown in Table 2.
Physical Feature U.S. Metric
Height (List 1, 4, 5 & 7) 9.5 in. 24.1 cm
Height (List 8) 8.5 in. 21.6 cm
Width (List 1, 4, 5 & 7) 11.5 in. 29.2 cm
Width (List 8) 11.0 in. 27.9 cm
Depth (List 1, 4, 5 & 7) 4.0 in. 10.2 cm
Depth (List 8) 7.5 in. 19.1 cm
Weight (approx.) 4lbs 1.8 kg
Operating Temp. -40°to 149°F-40°to 65°C
Humidity 0 to 95% (non-condensing)
Table 2. Physical Specifications

Section DTW-AK0-400-201
030-101586 Rev. B
R
5
DTWAK04L4 DTWAK04L5
DTWAK04L7 DTWAK04L8
Figure 2. DTWAK04 Assemblies

Section DTW-AK0-400-201 030-101586 Rev. B R
6
Circuit #1
Circuit #2
Circuit #3
Circuit #4
Circuit
#1
Circuit #2
Circuit #3
Circuit #4
Mounting Holes
Mounting Hole
DTWA528-04
Mounting Assembly
DTWAK04 (List Option 1)
NETWORK-SIDECUSTOMER-SIDE
Ground
Lug
top side of mounting
Figure 3. DTWAK04 Wiring, List Option 1

Section DTW-AK0-400-201
030-101586 Rev. B
R
7
CKT COLOR CODE LEAD 66 BLOCK
Circuit #1
W/BL
BL/W
W/O
O/W
T
R
T1
R1
3
4
5
6
Circuit #2
W/G
G/W
W/BR
BR/W
T
R
T1
R1
9
10
11
12
Circuit #3
W/BL
BL/W
W/O
O/W
T
R
T1
R1
15
16
17
18
Circuit #4
W/G
G/W
W/BR
BR/W
T
R
T1
R1
21
22
23
24
Table 3. Network-side Connections (List 1)
CKT COLOR CODE LEAD 66 BLOCK
Circuit #1
W/BL
BL/W
W/O
O/W
T
R
T1
R1
27
28
29
30
Circuit #2
W/G
G/W
W/BR
BR/W
T
R
T1
R1
33
34
35
36
Circuit #3
W/BL
BL/W
W/O
O/W
T
R
T1
R1
39
40
41
42
Circuit #4
W/G
G/W
W/BR
BR/W
T
R
T1
R1
45
46
47
48
Table 4. Customer-side Connections (List 1)

Section DTW-AK0-400-201 030-101586 Rev. B R
8
Circuit #1
Circuit #2
Circuit #3
Circuit #4
Mounting Holes
Mounting Hole
DTWA528-04
Mounting Assembly
DTWAK04 (List Option 4)
NETWORK-SIDE
Ground
Lug
top side of mounting
CPE
CKT. 1
Figure 4. DTWAK04 Wiring, List Option 4

Section DTW-AK0-400-201
030-101586 Rev. B
R
9
CKT COLOR CODE LEAD 66 BLOCK
Circuit #1
W/BL
BL/W
W/O
O/W
T
R
T1
R1
3
4
5
6
Circuit #2
W/G
G/W
W/BR
BR/W
T
R
T1
R1
9
10
11
12
Circuit #3
W/BL
BL/W
W/O
O/W
T
R
T1
R1
15
16
17
18
Circuit #4
W/G
G/W
W/BR
BR/W
T
R
T1
R1
21
22
23
24
Table 5. Network-side Connections (List 3)
-NOTE-
Customer-side wiring connections are made via RJ jacks on the
mounting

Section DTW-AK0-400-201 030-101586 Rev. B R
10
Circuit #1
Circuit #2
Circuit #3
Circuit #4
Mounting Hole
DTWAK04 (List Option 5)
NETWORK-SIDE
Ground
Lug
Circuit #1
Circuit #2
Circuit #3
Circuit #4
CUSTOMER-SIDE
Sockets For 5-Pin--type Protectors
(2 Protectors Required Per Circuit)
DTWA528-04
Mounting Assembly
top side of mounting
Ground
Post Mounting Hole
Figure 5. DTWAK04 Wiring, List Option 5
Mounting Hole

Section DTW-AK0-400-201
030-101586 Rev. B
R
11
DTWAK04 (List Option 7)
CPE CKT. 1 List 7 -- Customer side is wired from RJ jacks
Circuit #1
Circuit #2
Circuit #3
Circuit #4
Circuit #1
Circuit #2
Circuit #3
Circuit #4
Mounting Holes
Mounting Hole
DTWA528-04
Mounting Assembly
NETWORK-SIDECUSTOMER-SIDE
Ground
Lug
top side of mounting
NOTE
Slide Switches, located inside
the DTWA528-04, MUST be
set in the RJ48C or RJ48S
Position
List 7 equipped with Type-66 Block
Figure 6. DTWAK04 Wiring, List Option 7

Section DTW-AK0-400-201 030-101586 Rev. B R
12
CKT COLOR CODE LEAD 66 BLOCK
Circuit #1
W/BL
BL/W
W/O
O/W
T
R
T1
R1
3
4
5
6
Circuit #2
W/G
G/W
W/BR
BR/W
T
R
T1
R1
9
10
11
12
Circuit #3
W/BL
BL/W
W/O
O/W
T
R
T1
R1
15
16
17
18
Circuit #4
W/G
G/W
W/BR
BR/W
T
R
T1
R1
21
22
23
24
Table 6. Network-side Connections (List 7)
CKT COLOR
CODE RJ PIN # LEAD RJ48C
LEAD
RJ48S 66 BLOCK
W/BL 5 T 27
BL/W 4 R 28
C
i
r
c
u
i
t
#
1
W/O 2T1 T29
Circuit #1 O/W 1R1 R30
W/BR 7 T1 31
BR/W 8R1 32
W/BL 5 T 33
BL/W 4 R 34
C
i
r
c
u
i
t
#
2
W/O 2T1 T35
Circuit #2 O/W 1R1 R36
W/BR 7 T1 37
BR/W 8R1 38
W/BL 5 T 39
BL/W 4 R 40
C
i
r
c
u
i
t
#
3
W/O 2T1 T41
Circuit #3 O/W 1R1 R42
W/BR 7 T1 43
BR/W 8R1 44
W/BL 5 T 45
BL/W 4 R 46
C
i
r
c
u
i
t
#
4
W/O 2T1 T47
Circuit #4 O/W 1R1 R48
W/BR 7 T1 49
BR/W 8R1 50
Table 7. Customer-side Connections (List 7)

Section DTW-AK0-400-201
030-101586 Rev. B
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13
DTWAK04 (List Option 8)
Circuit
#1
Circuit #2
Circuit #3
Circuit #4
Circuit
#1
Circuit #2
Circuit #3
Circuit #4
NETWORK-SIDECUSTOMER-SIDE
Gnd Lug
Mounting Hole
Gnd Lug
Mounting Hole
Mounting Hole
Mounting Hole
Gnd Lug
ESD Jack
Figure 7. DTWAK04 Wiring, List Option 8

Section DTW-AK0-400-201 030-101586 Rev. B R
14
CKT COLOR CODE LEAD 66 BLOCK
Circuit #1
W/BL
BL/W
W/O
O/W
T
R
T1
R1
3
4
5
6
Circuit #2
W/G
G/W
W/BR
BR/W
T
R
T1
R1
9
10
11
12
Circuit #3
W/BL
BL/W
W/O
O/W
T
R
T1
R1
15
16
17
18
Circuit #4
W/G
G/W
W/BR
BR/W
T
R
T1
R1
21
22
23
24
Table 8. Network-side Connections (List 8)
CKT COLOR
CODE RJ PIN # LEAD RJ48C
LEAD
RJ48S 66 BLOCK
W/BL 5 T 27
BL/W 4 R 28
C
i
r
c
u
i
t
#
1
W/O 2T1 T29
Circuit #1 O/W 1R1 R30
W/BR 7 T1 31
BR/W 8R1 32
W/BL 5 T 33
BL/W 4 R 34
C
i
r
c
u
i
t
#
2
W/O 2T1 T35
Circuit #2 O/W 1R1 R36
W/BR 7 T1 37
BR/W 8R1 38
W/BL 5 T 39
BL/W 4 R 40
C
i
r
c
u
i
t
#
3
W/O 2T1 T41
Circuit #3 O/W 1R1 R42
W/BR 7 T1 43
BR/W 8R1 44
W/BL 5 T 45
BL/W 4 R 46
C
i
r
c
u
i
t
#
4
W/O 2T1 T47
Circuit #4 O/W 1R1 R48
W/BR 7 T1 49
BR/W 8R1 50
Table 9. Customer-side Connections (List 8)