Westell DTWA528-28 Series User manual

Equipment Issue 2
030-101668 Rev. A, February 2008
Section DTW-A52-828-201

Copyright 2008 Westell, Inc. All rights reserved.
*CLEI is a trademark of Telcordia Technologies. Westelland 200 MECHANICS are registered trademarks of Westell, Inc. Page 1 of 8
0802I1RA
WestellrDTWA528-28 Series of
28-Position Digital Terminating Wall Assemblies
CONTENTS PAGE #
1. GENERAL 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. INSTALLATION 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. TESTING & TROUBLESHOOTING 6. . . . . . . . . . . . . .
4. CUSTOMER & TECHNICAL SERVICES 6. . . . . . . . .
5. WARRANTY & REPAIRS 6. . . . . . . . . . . . . . . . . . . . . . .
6. SPECIFICATIONS 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1. GENERAL
1.1 Document Purpose
This document describes the WestellDTWA528-28 Series of
28-Position Digital Terminating Wall Assemblies, one of which
is shown in Figure 1. See Table 1 for information concerning
other models in the same product family.
- NOTE -
Hereafter, the Westell DTWA528-28 28-Position Digital
Terminating Wall Assemblies will be referred to as the
DTWA528-28" or the assembly." Specific model numbers will
be used where differences apply.
1.2 Document Status
Whenever this practice is updated, the reason will be stated in
this paragraph. This practice replaces document 030-101619
for the products listed in Table 1.
1.3 Product Purpose and Description
The DTWA528-28 is a 28-position mounting that holds up to
28 200 MECHANICSNetwork Interface Units and provides
a dedicated slot for an optional modular power supply on each
shelf. Facility side connections are made to separate Transmit
(XMT) and Receive (RCV) 32-pair connectors or to wirewrap
pins on the printed circuit board (PCB) backplane. Customer
connections are made to a Customer Interface Module (CIM)
which provides RJ48C modular jacks and two, separate, transmit
and receive RJ48H cable connectors. The CIM on the List 5 op-
tion adds switches for selecting either RJ48C, RJ48S, or RJ48H
jacks, to satisfy various needs for either TS1 Digital Services, Digi-
tal Data Services or Leased Line Analog Services. The RJ48H
connectors are 64-pin male connectors. The List 14 option ties
pins 2 and 11 to pin 27 (Chassis Ground). The List 7 option adds
two Y" cables (a 32-pair female connector at one end and two
25-pair male connectors at the other end). The List 4 model
provides a keyed lock (requires a key to open).
Figure 1. Typical DTWA528-28 Assembly
1.4 Product Mounting
The DTWA528-28 is typically mounted on an approved wall at
the customer location. This assembly is well-suited for confined
corner wall-mounting due to the reversible cover (and door) and
unique CIM module, which plugs into either the left or right side
of the DTWA528-28, for easy and flexible CPE access.
1.5 Product Features
The DTWA528-28 offers the following features.
Compact and light-weight holds up to 28 200 MECHAN-
ICSDS1, HDSL, DDS or Analog Data/Voice-type
circuits
Pre-wired backplane and connectorized to minimize wir-
ing errors and installation time
Facility connections are made to separate XMT and RCV
32-pair connectors or wirewrap pins
CPE connections made at a unique, optional, removable,
CIM module, which contains two, 32-pair, male, RJ48H
connectors (one for XMT, one for RCV), and 28 switch-
able RJ48C modular jacks (switchable RJ48C/S/H jacks
on the List 5 model)
Well-suited for confined corner wall-mounting due to the
removable CIM module, which plugs into either the left or
right side of the DTWA528-28, for easy CPE access
Removable and reversible metal cover, complete with see-
through, hinged, front door (key locking cover available)

Section DTW-A52-828-201 030-101668 Rev. A 
20802I1RA
Mounting Assembly
PtN b
CLEI** Code CPR / ECI
Bd
Network
Connector Types
Customer
Connector Types Key-Locking
Cover
gy
Part Number
/
Barcode 2 Telco, 32-pair,
male connectors
Wirewrap
pins
CIM Module
(Includes 28 RJ48C jacks and 2 Telco
RJ48H connectors)
yg
Cover
(List 4 option)
DTWA528-28I2L4 T1M4CR0ARA 137946/431550 X X X X
DTWA528-28L4-5-7 X X X X
DTWA528-28L14* VAM2YN2HRA 203464/439631 X X X
Notes: All assemblies accept up to 28 half-width (200 MECHANICSr) modules. ** CLEI is a trademark of Telcordia Technologies. List 7 optiom adds 2 32-pair “Y” cables (a 32-pair
female connector at one end and two 25-pair mailes at the other end).  List 5 option adds switchable RJ48C/S/H jacks. * List 14 option ties pins 2 and 11 to 27 (CH GND).
Table 1. Part Ordering and Optioning Information
Reversible cover allows door opening from the left or right
UL 1950 Listed and NEBS Level 3 Certified
2. INSTALLATION
Installation consists of inspecting the equipment for damage,
following proper safety precautions, mounting the unit, and
making all installer wiring connections. The following para-
graphs provide instructions for performing these procedures.
- INSPECTION NOTE -
Visually inspect the product for damages prior to installation. If
damaged in transit, immediately report the damage to the transporta-
tion company and to Westell.
- 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.
CAUTION - STATIC-SENSITIVE
This product contains static-sensitive components! Follow
proper electrostatic discharge procedures to maintain
personal and equipment safety. Do not store units near
magnetic, electromagnetic or electrostatic fields. Always
store or ship units in the original static-protective packaging
from Westell. Use anti-static mats when working on units.
Cover
Shelf Thumb Screw
Customer Interface Module (CIM)
Figure 2. Open View (Cover and Customer Interface Module [CIM] Detached)
Remove cover to access
mounting plate and power
and facility connections.
CIM can be attached to either
side of the shelf assembly.
Screws
Hinged Door
(loosen to remove Wirewrap pins
Amphenol connector
XMT TO FAC
RJ48C/S
Jacks
RJ48H / Telco
Connectors
Lock
mounting backplate)
Cover
Cover is reversible
(can be flipped over)
to enable door to
hinge on right side.
Assembly is
shipped fully-
assembled
Shelf Assembly
Screws on both
sides, loosen to
remove cover.
Thumb

Section DTW-A52-828-201
030-101668 Rev. A

3
0802I1RA
2.1 Pre-Mounting Considerations
This assembly is to be installed by authorized, trained person-
nel only, in accordance with local practices for High Capacity
(1.544 Mb/s) Digital Services, Digital Data Services or Leased
Line Analog Services. In accordance with UL1950, this mount-
ing enclosure is suitable for mounting over concrete or other
non-combustible surfaces only. The assembly should be lo-
cated in an area that provides adequate lighting, climate
control and equipment access.
2.1.1 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
following:
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 objects 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.
2.1.2 Gathering Tools and Supplies
The following tools and supplies may be needed to mount the as-
sembly.
Flat-blade screw driver (to adjust the terminal block screws
and to adjust the mounting screws and ground lug)
Wire strippers (for signal, power, and ground wires)
Drill and drill bits (to drill holes for mounting screws/bolts)
Wirewrap tool (if using wirewrap pin connections)
Grounding materials and equipment
Wall mounting hardware (four screws or bolts)
2.2 Wall-Mounting the Assembly
The DTWA528-28 is designed to be directly mounted to an ap-
proved wall. Follow local company practice to mount the
assembly; if none exist, follow the instructions below and refer to
Figure 2 and Figure 3 as needed to mount the assembly. The in-
structions assume the CIM is located on the right side of the
assembly.
- CIM LOCATION NOTE -
The CIM module can be removed and attached to either side of
the mounting assembly, and the assembly’s cover can be removed
and reversed to change the swing-out door hinge location.
1. Determine the mounted location on wall. Ensure the as-
sembly will be mounted in a location with unobstructed
access to it and which has adequate room to allow the front
door to be opened, and that adequate horizontal and verti-
cal space be left between multiple installations to allow for
proper cable access and ventilation.
2. Prepare the assembly. Remove the front cover by loosening
the thumbscrews on the sides of the assembly. Also unlock
the keylock, if mounting a key-locking model.
3. Remove the cover. Slide or lift off the cover and set it aside.
4. Separate the mounting backplate from the assembly. Next,
remove the backplate from the assembly by loosening the
thumbscrew at the top center of the assembly’s PCB back-
plane.
5. Determine the mounted location on wall. Ensure the as-
sembly will be mounted in a location with unobstructed
access to it and which has adequate room to allow the
mounting’s front door to be opened, and that adequate hor-
izontal and vertical space be left between multiple
installations to allow for proper cable access and ventila-
tion.
6. Mark the mounting hole locations to be drilled. Using the
removed backplate as a template, lift the backplate to the
exact installation location on and against the approved wall,
per company practice, and then mark the exact mounting
hole locations to be drilled for the mounting hardware.
7. Drill holes. Set aside the backplate and drill appropriately-
sized holes to accommodate the mounting hardware, per
the wall type and per company practice. The size of the
holes and the fastening hardware varies according to the
wall type. Do not make the holes too large.
8. Secure backplate to wall. Lift the backplate, place it against
the wall so the four recessed mounting hole indentations
contact the wall, and install mounting screws or bolts
through each predrilled hole in the backplate and into the
predrilled holes in the wall. Verify the backplate is firm and
snug up against the wall.
9. Attach assembly to backplate on wall. Lift and align the as-
sembly’s four, angled, mounting clips at the back of the
assembly (see Figure 3) with the four angled tabs on the
backplate, then carefully hang the assembly on the tabs.
Tighten the shelf assembly’s captive thumbscrew.
10. Continue with installer connections. Re-install the cover
and close up the assembly after all installer connections are
made, modules are inserted, and testing is complete.
- CAUTION -
Never apply power until all installer connections are made.

Section DTW-A52-828-201 030-101668 Rev. A 
40802I1RA
Position shelf
assembly against
backplate (about 1/2"
higher than backplate,
then lower the shelf
straight down so the 4
mounting clips on the
shelf fit into the 4 tabs
on the backplate.
Tighten shelf screw to
secure shelf.
Figure 3. Mounting the Backplate to a Wall and the Shelf Assembly to the Backplate
Mounting
Backplate
Mount the back-
plate securely to an
approved wall using
four screws as
shown
Shelf Assembly
Mounting clips attach
to backplate tabs
Tab
Tab
Loosen thumbscrew
to remove backplate
PWRPWR28282727262625252424232322222121202019191818171716161515
FACILITY−RCV (CIRCUITS 1−14)FACILITY−RCV (CIRCUITS 1−14) P1P1
PWRPWR28282727262625252424232322222121202019191818171716161515
2.3 Facility/Network Interface Connections
Facility connections are made to the assembly by connecting
two 32-pair female connector cables to the two 32-pair male
connectors located on the front of the printed circuit board
backplane designated P1 (RCV) and P2 (XMT). See Table 3
for wiring information. An alternate method for making facili-
ty connections to the shelf may be provided via wirewrap pins
located at the top right and bottom right of the PCB backplane.
Connections are made by wirewrapping the appropriate leads
from the facility to the pins designated XMT and RCV for each
circuit. Connections are to be made using shielded twisted-pair
cable of a length and gauge consistent with local installation
practices. Refer to Table 3 and the PCB silkscreen for 56-pin
card-edge pin assignments, lead designation and circuit posi-
tion identification.
2.4 Customer Interface Connections
Customer Interface connections are made to the CIM located
on the side of the mounting, via either separate XMT and
RCV telco connectors or via the RJ48C modular jacks. See
Table 3 for 32-pair, RJ48(C/S) wiring information. For the List
5 model, set each circuit’s jack switch to the proper jack switch
type position (RJ48C, RJ48S, or RJ48H), per company prac-
tice and the proper application.
- GROUNDING NOTE -
Always follow the National Electrical Code (NEC) rules, local safety pre-
cautions, and standard operating procedures for grounding the equipment
when installing, upgrading, repairing or maintaining equipment. Any in-
structions or information contained herein is subordinate to local codes,
operating procedures or practices.

Section DTW-A52-828-201
030-101668 Rev. A

5
0802I1RA
Position 14
Frame
(#6−#14
FACILITY−RCV
Amphenol type connector External power connections
Thumb screw FACILITY−XMT
wirewrap pins
FACILITY−RCV
wirewrap pins
FACILITY−XMT
Amphenol type connector
CIM Module
shown mounted
Connector
CIM on
Optional
Figure 4. Front View of DTWA-528-28 Shelf Assembly
(32-Pair Male)
(32-Pair Male)
114387
13 14 12 11 10 9 8 7 6 4 5 3 2 1
CKT8 PWRCKT9 CKT10 CKT11
CPE−L
CKT12 CKT13 CKT14CKT7CKT6CKT5CKT4CKT3CKT2CKT1
P2
XMT TO FACILITY
XMT TO FACILITY
GN D
R1
T1
GN D
R1
T1
56 9
2824 2625
15 181716 2221
CKT22 PWRCKT23 CKT24 CKT25
CPE-−LCKT26 CKT27 CKT28CKT21CKT20CKT19CKT18CKT17CKT16CKT15
P1
GN D B -48V B ALARM FGND
RCV FROM FACILITY
-48V A GN D A
19 20 23
21 13 14 PWR
PWR27
R1
T1
R1
T1
27 28 26 25 24 23 22 21
2
20
1
18 19 17 16 15
13 14 12 11 10 9 8 7 6 4 5 3 2 1
RCV FROM FACILITY
GN D
R
T
GN D
R
T
R
T
R
T
27 28 26 25 24 23 22 21 20
1
18 19 17 16 15
10 12
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
12
55 56
CPE-−L
Position 1
Position 28Position 15
Power Supply
Slot
for mounting
left side
Ground Lug
gauge wire)
on right side
for backplate
Thumb screw
for CIM module
2.5 Chassis/Frame Ground Connections
An externally-approved, separate and direct, earth ground
connection (#6 to #14 gauge wire) must be connected to the
FGND (Frame Ground) screw terminal of TB1 or the single bar-
rel offset copper ground lug, located on the lower left-hand side
of the mounting. This must be done in order to properly ground
the assembly’s framework as well as all Network Interface Device
front panels. The offset ground lug will accept a #6 to #14 gauge
ground wire.
- CAUTION -
Never apply power until all installer connections are made.
2.6 Power Connections
A 6-position terminal strip, TB1, is provided for making the local,
external, 48-volt and ground connections. The first two screw ter-
minals on TB1 are labelled -48VA" and GND A," while the next
two are labelled GND B" and -48VB." Either set of screw ter-
minals can be used for main power (A) while the second set of

Section DTW-A52-828-201 030-101668 Rev. A 
60802I1RA
screw terminals (B) can be used for the back-up or redundant
power source. The last two screw positions are labelled
FGND" and ALARM". A customer-provided, plug-in, pow-
er supply module can be installed in the right-most slot of each
shelf in the mounting, if desired.
2.7 Module Installation
The DTWA528-28 holds up to 28 200 MECHANICStype TS1,
HDSL, DDS or Analog Data/Voice-type modules. Set all mod-
ule switch options and install all modules per manufacturer
instructions and company practice. Modules make electrical
connection to external equipment when installed and properly
seated in the card-edge connector in the assembly. Align the
module with the assembly card guides above and below the unit
and insert the module as far as it will go into the slot connector.
- 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.
2.8 Closing the Assembly
After all connections are made, power and ground connec-
tions are properly terminated, and all modules are optioned
aligned, and tested, the front cover can be replaced. Place the
front cover over the shelf assembly and slide the cover to the
left. Securely tighten the front cover thumbscrews, located on
each side of the assembly. Make sure the cover is positioned
properly over the CIM module. Lock the assembly with the
key, if applicable.
3. TESTING & TROUBLESHOOTING
3.1 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
5.2).
3.2 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 de-
signed to effect repairs or modifications. Any tests beyond
those outlined herein, or repairs made beyond replacing a
faulty unit, are not recommended and may void the warranty.
4. CUSTOMER & TECHNICAL SERVICES
4.1 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]
For additional information about Westell, visit the Westell
World Wide Web site at http://www.Westell.com.
4.2 Part Numbers
This equipment is identified by a product number
(DTWA528-28), which consists of three parts: the assembly
type (DTWA − Digital Terminating Wall-mount Assembly)
and model number (528-28). If an option is provided, it is indi-
cated with a suffix (DTWA528-28L14).
5. WARRANTY & REPAIRS
5.1 Warranty
Westell warrants this product to be free of defects at the time
of shipment. Westell also warrants this product to be fully func-
tional 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
Westell representative will void the warranty.
5.2 Repair and Return
Westell will repair or replace any defective Westell equipment
without cost during the warranty period if the unit is defective
for any reason other than abuse, improper use, or improper
installation. To return defective equipment, first request a Re-
turn Material Authorization (RMA) number from Westell by
calling or using one of the options shown below. Once an RMA
number is obtained, return the defective unit (freight prepaid),
along with a brief problem description, to the address we will
provide to you when you contact us.
Voice: [phone]
email: [email protected]
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.
6. SPECIFICATIONS
6.1 Regulatory/Agency Specifications
The DTWA528-28 is designed to meet the following regulato-
ry, safety, or environmental specifications or requirements:
UL 1950 Listed
NEBS Level 3 Certified

Section DTW-A52-828-201
030-101668 Rev. A

7
0802I1RA
6.2 Ordering Specifications
To order units, call the telephone number shown in Paragraph
4.1 and please specify a specific model number shown in
Ta b l e 1 .
6.3 Electrical and Physical Specifications
The electrical and signalling specifications are listed below,
and the physical specifications are shown in Table 2.
A. Power: line or locally powered via external -48VDC
source
Physical Feature U.S. Metric
Height 16.5 in. 41.91 cm
Width 13.5 in. 34.29 cm
Depth 7.4 in. 18.8 cm
Weight (approx., empty) 20 lbs. 9.07 kg
Operating Temp. -40°to 149°F -40°to 65°C
Humidity 0 to 95% (non-condensing)
Table 2. Physical Specifications

Section DTW-A52-828-201 030-101668 Rev. A 
80802I1RA
P1
RCV FAC
(Male)
P2
XMT FAC
(Male)
P3
RCV CPE
(Male)
P4
XMT CPE
(Male)
RJ48C
CPE Jack
RJ48S
CPE Jack
Circuit
32−Pin
Connector
Color Code
Lead
Designation
56−Pin
Connection
Lead
Designation
56−Pin
Connection
Lead
Designation
56−Pin
Connection
Lead
Designation
56−Pin
Connection
Lead
Designation
RJ48C
Connection
Lead
Designation
RJ48C
Connection
Lead
Designation
RJ48C Connection
Lead
Designation
RJ48C Connection
133 (W–BL)
1 (BL–W)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
234 (W–O)
2 (O–W)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
335 (W–G)
3 (G–W)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
436 (W–BR)
4 (BR−W)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
537 (W–S)
5 (S–W)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
638 (R–BL)
6 (BL–R)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
739 (R–O)
7 (O–R)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
840 (R–G)
8 (G–R)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
941 (R–BR)
9 (BR–R)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
10 42 (R–S)
10 (S–R)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
11 43 (BK–BL)
11 (BL–BK)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
12 44 (BK–O)
12 (O–BK)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
13 45 (BK–G)
13 (G–BK)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
14 46 (BK–BR)
14 (BR–BK)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
15 47 (BK–S)
15 (S–BK)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
16 48 (Y–BL)
16 (BL–Y)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
17 49 (Y–O)
17 (O–Y)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
18 50 (Y–G)
18 (G–Y)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
19 51 (Y–BR)
19 (BR–Y)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
20 52 (Y–S)
20 (S–Y)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
21 53 (V–BL)
21 (BL–V)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
22 54 (V–O)
22 (O–V)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
23 55 (V–G)
23 (G–V)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
24 56 (V–BR)
24 (BR–V)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
25 57 (V–S)
25 (S–V)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
26 58 (W–BL)
26 (BL–W)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
27 59 (W–O)
27 (O–W)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
28 60 (W–G)
28 (G–W)
T
R
7
13
T1
R1
41
47
T
R
55
49
T1
R1
5
15
T
R
5
4
T1
R1
2
1
T
R
2
1
T1
R1
7
8
Table 3. DTWA528-28 Facility and CPE Wiring Chart