Toshiba Strata Dk14, Dk40i, Dk424 Installation And Maintenance Manual

							Strata DK I&M 5/995-1
DK424 Installation
DK424 Installation5
This chapter explains how to install the Strata DK424 system. It includes information on site 
requirements and provides installation instructions for various cabinet configurations. It also 
explains how to install ground wiring, AC power cabling, reserve power (Battery Backup) cabling, 
and Printed Circuit Board (PCB) cabling.
Inspection
When the system is received, examine all packages carefully and note any visible damage. If any 
damage is found, do not open the packages. Contact the delivery carrier immediately and make the 
proper claims.
After unpacking (and before installing), check the system against the packing list and inspect all 
equipment for damage. If equipment is missing or damaged, contact your supplier immediately.
Be sure to retain original packaging materials for re-use when storing or transporting system 
hardware.
Packaging and Storage
CAUTION!When handling (installing, removing, examining) PCBs, do not touch the back 
(soldered) side or edge connector. Always hold the PCB by its edges.
When packaging and storing the system, remove PCBs from the system cabinet (the power supply 
may remain installed in the cabinet for storage and shipment). PCBs should be packaged in their 
original antistatic bags for protection against electrostatic discharge. Be sure to package equipment 
in its original shipping containers. 
						

							DK424 Installation
Site Requirements
5-2Strata DK I&M    5/99
Site Requirements
Input Power
The DK424 requires an input power source of 115VAC ± 10 VAC, 50/60 Hz, 17.5 amps. The 
system requires one or two AC outlets that must be dedicated to system use, fused, and grounded. 
See “Power Supply Installation” on Page 5-8 for complete AC power cabling, ground wiring and 
battery installation instructions.)
CAUTION!To avoid accidental power turn-off, it is recommended that an ON/OFF wall 
switch not be used on AC circuits dedicated for the use of DK424.
A reserve power source (two or four customer-supplied 12-volt batteries) may be connected to the 
DK424 to serve as a backup in case of power failure. 
Clearance and Location
The Base and optional Expansion Cabinets may be either floor or wall mounted. Figure 5-1 shows 
the minimum clearance requirements. See “Wall Mounting the Base Cabinet” on Page 5-11 and 
“AC Power Distribution for Six Cabinets” on Page 5-36 for details.
Notes
lFloor mounting requires the following additional hardware:
lRFIF – floor mounting stands and brackets.
lRCCB – electrical conduit box, if three or more cabinets are installed.
lWall mounting may require a plywood (3/4 inch thick) backboard.
When selecting a location for the cabinets, the location must be:
©Dry and clean
©Well-ventilated
©Well-illuminated
©Easily accessible
The location must not be:
©Subject to extreme heat or cold
©Subject to corrosive fumes, dust, or other airborne contaminants
©Subject to excessive vibration
©Next to television, radio, office automation, or high frequency equipment
Optional customer-supplied reserve batteries require a well-ventilated location close (within nine 
feet) to the DK424 cabinets. 
						

							DK424 Installation
Site Requirements
Strata DK I&M 5/995-3
DK424 Installation
24
24
78
6 14.5
23.6
11.75 
13.5
Wall
Floor
Front View Top View
23.6
Cabinets9.75 
36
Minimum Clearance Requirements
(Wall Mounting)
24
24
75
3
Wall
Floor
Wall
Wall
Front View Top View
23.6
Cabinets
36
23.6
Minimum Clearance Requirements
(Floor Mounting)
3 Floor
Mount
Stands
(RFMF)
2 Brackets
     (RWBF)
1451
Expansion
Cabinet
Expansion
Cabinet
Expansion
Cabinet
Expansion
Cabinet
Expansion
Cabinet
Expansion
CabinetBase
Cabinet
Expansion
Cabinet
Expansion
Cabinet Expansion
Cabinet
Expansion
Cabinet
Expansion
Cabinet
Expansion
CabinetBase
Cabinet
Figure 5-1 DK424 Minimum Clearance Requirements 
						

							DK424 Installation
Site Requirements
5-4Strata DK I&M    5/99
Electrical/Environmental Requirements and Characteristics
See Table 5-1 for the DK424 electrical/environmental requirements and characteristics.
Table 5-1 Summary of Electrical/Environmental Characteristics
DK424 Primary Power 
Input AC
AC amps for seven-cabinet system
AC frequency
Watts per cabinet (continuous)
Watts for six cabinet system (continuous)115VAC 
± 10VAC
20 amp circuit
50/60 Hz
180
845
DK424 Maximum Peak AC Input Current 
1 cabinet – 2.5 amps
2 cabinets –5.0 amps
3 cabinets – 7.5 amps
4 cabinets – 10.0 amps5 cabinets – 11.5 amps
6 cabinets –15.0 amps 
7 cabinets – 17.5 amps
Environmental Specifications
Operating temperature
Operating humidity
Storage temperature32~104° F (0~40° C)
20~80% relative humidity without condensation
-4~158° F (-20~70° C)
Power Supply
DC voltage output specification-24VDC (-26.3~-27.8VDC)
+5VDC (+4.5~+5.5VDC)
-5VDC (-4.5~-5.5VDC) - Expansion Cabinet only
Battery Charger Characteristics
Charger: current limiting
Nominal float voltage: 2.275 volts/cell
Charge current: 0.7 amps maximum
Battery discharge cut-off voltage: 20.5  
±0.5VDC
PESU (Circuits 1 and 2)
Ring voltageSquare wave output with high/low option jumper:
Low position 130 
±20VDC peak-to-peak (no-load)
High position, 190 
±25VDC peak-to-peak (no-load)
Ringing capability 2 ringers maximum per circuit, high or low position
RSTU2 or RDSU 
Ring voltage 80V RMS sine wave
Ringing capability 1.5 REN per circuit, with or without Message Waiting
RSTU2 Message Waiting voltage -90 VDC/one telephone per circuit (max.)
RSTU2 or PESU modem interface data rate 14,400 bps maximum
BTU Rating
PDKU (5)
RCOU/RCOS (1)
RCTUB (1)
DKTs (40)190 BTUs (56 watt hours) per cabinet
Traffic Rating Characteristics
9 CCS per station system-wide
36 CCS per ACD/SMIS station
NoteThere are system limits for the number of simultaneous Agents depending on traffic. See the Strata DK424 Call 
Center Solutions General Description for details. 
						

							DK424 Installation
Site Requirements
Strata DK I&M 5/995-5
DK424 Installation
Cable Lengths
The Base and optional Expansion Cabinets must be placed within the allowed maximum distance 
of each other as designated by Ta b l e  5 - 2. 
Table 5-2 Station Loop Requirements
DeviceInterface PCB
CircuitsNo. of Wire Pairs
(use 24 AWG 
twisted pair)Max Loop 
Resistance 
(including 
device)
Maximum Distance from 
Cabinet to Device
Digital telephones
1
1. Two-pair wiring or optional telephone power supply is required to achieve maximum range with DADM, OCA, Headset, or 
Data Interface Unit.PDKU (1~8)
or
RDSU (5~8)
1-pair
40 ohms 1000 ft. (303 m) DDSS consoles PDKU (8)
PDIU-DSPDKU (1~8)
or
RDSU (5~8)
DDCBPDKU or
RDSU (5)
Attendant Console RATU (1~4)
2-pair
HDCBPEKU (5) or
PESU (5)
2
2. PESU circuits 3 and 4 are not used.Electronic telephonesPEKU or PESU 2-pair (3-pair 
required for OCA)
RPCI-DI
or
PDIU-D12PDKU (1~8)
or
RDSU (5~8)Shares digital 
telephone wire-
pair
1
DADMPDKU (1~8)
or
RDSU (5~8)
RATI RATU (1~4) 1 or 2-pair
HDSS consoles PEKU (7 & 8) 2-pair 20 ohms 500 ft. (152 m)
Standard telephones, 
voice mail, Auto 
Attendant, etc.PSTU (1~8)
or
PESU (1 & 2)
1
1-pair300 ohmsApprox. 3000 ft. (909 m) with 
150 ohm device.
3
3.See manufacturer’s product specifications for exact resistance of device.RSTU (1~8)
RDSU/RSTS (1~4) 
without R48S 
option600 ohmsApprox. 9000 ft. (2727 m) 
with 150 ohm device.
3
RSTU (1~8)
RDSU/RSTS (1~4) 
with R48S option1,200 ohmsApprox. 21000 ft. (6363 m) 
with 150 ohm device.
3 
						

							DK424 Installation
Site Requirements
5-6Strata DK I&M    5/99
Network Requirements
The system network requirements are provided in Table 5-3.
Table 5-3 DK424 Network Requirements
PCB/InterfaceFacility Interface CodeNetwork JackRinger 
EquivalenceUniversal Service 
Order Code
PESU/RSTU2/RDSU1
(Off-premises Station)
1. Only PESU circuits 1 and 2, and RDSU circuits 1~4 provide Off-premises Station (OPS) capability. PESU must use OL13A or 
equivalent line conditioning for OPS connection. RDSU must use OL13A or OL13B if providing –24 volt loop voltage. If 
equipped with the –48 volt loop option PCB (R48S), OL13A, OL13B, or OL13C may be used for OPS connection.
OL13A (PESU)
RJ21X N/A 9.0F OL13B (RSTU2, –24V)
OL13C (RSTU2, RDSU with 
R48S-48V)
RCOU/RCOS
(loop start line)02LS2 RJ14C/RJ21X 0.3B N/A
RDDU02RV2-T RJ14C/RJ21X 0.0B AS.2
REMU type 1 or type 2
TL11M, 2-wire
TL31M, 4-wire
TL12M, type 2, 2-wire
TL32M, type 2, 4-wireRJ2EX
RJ2GX
RJ2FX
RJ2HXNot Available
 (N/A)9.0F
RGLU2 (ground or loop start 
line)02GS2 (ground)
02LS2 (loop)RJ14C/RJ1CX 0.3B N/A
RDTU (DS-1/T1)2
2. When ordering DS-1/T1 circuits, six items must be specified:
lThe number of channels per T1 circuit, fractional increments are normally 8, 12, or 16 channels, full service is 24 channels. 
Unused channels must be bit-stuffed.
lType of CO line assigned to each channel: Loop Start, Ground Start, Tie (Wink or Immediate Start), DID (Wink or 
Immediate).
lFrame Format Type: Super Frame (SF) or Extended Super Frame (ESF). The T1 provider normally specifies the Frame 
Format to be used, either is adequate for DK424 CO digital voice lines. ESF provides a higher level of performance 
monitoring, but requires trained personnel and the ESF CSU normally costs more than an SF only CSU.
lLine Code Type: Alternate Mark Inversion (AMI) or Bipolar 8 Zero Substitution (B8ZS). The T1 provider normally 
specified the Line Code to be used, either is adequate for DK424 T1 CO digital voice lines.
lThe customer may have to provide the Channel Service Unit (CSU) to interface the DK424 T1 circuit to the Telco T1 circuit. 
(CSUs are a Telco requirement.)
lRDTU Network Channel Interface Codes: 04DU9-BN, 04DU9-DNZZ, 04DU9-1SN, 04DU9-1KN, 04DU9-1ZN.
(See last bullet note on Note 2 
below.)RJ48C/RJ48X/
RJ48MN/A 6.0P
RCIU2/RCIS (Caller ID)N/A RJ21X/RJ14C 0.3B N/A
RPTU (PRI)3
3. For information on how to order ISDN PRI/BRI circuits, you should refer to the Toshiba ISDN Training CBT. ISDN circuits 
may require a customer-provided CSU for PRI and/or Terminal Adapter or Network Terminal units for BRI. In U.S. CSU/TAs 
must be UL-listed in the U.S. In Canada, they must be CSA certified.
04DU9-1SN RJ48C/RJ48M N/A
6.0P
RBSU/RBSS (S/T, BRI)302IS5 RJ48C/RJ48X N/A
RBUU/RBUS (U, BRI)302IS5 RJ48C/RJ48X N/A
RCMU/RCMS (CAMA)02RV2-O RJ11C/RJ21-X N/A 
						

							DK424 Installation
Cabinet Installation Considerations
Strata DK I&M 5/995-7
DK424 Installation
Cabinet Installation Considerations
The Base (DKSUB424) and Expansion Cabinets (DKSUE424) can be wall or floor mounted. To 
make it easier to add cabinets (after the initial installation) when a customer needs to expand, 
install the Base Cabinet on top for wall-mount installations and on the bottom for floor-mount 
installations.
The dimensions of the Base and Expansion Cabinets are:
Height: Base Cabinet: 11 3/4 inches
Height: Expansion Cabinet: 10 inches
Width: 23 5/8 inches
Depth: 9 3/4 inches
Weight: approx. 30.5 lbs. (14 kg.)
NoteThe weight approximates a cabinet completely filled with PCBs. Weight may vary 
slightly, depending on PCBs.
 Recommended Installation Sequence
NoteEach cabinet requires four wood screws (#12X 1.25 inch size) for wall mount installation. 
Wood screws are not provided with the system.
StepReference Information
1. Install power supplies in cabinets.“Power Supply Installation” on Page 5-8.
2. Mount cabinets on floor or wall.“Wall Mounting the Base Cabinet” on Page 5-11.
“Cabinet Floor Mounting” on Page 5-21.
3. Install ground wiring.“AC Power and Third Wire Ground Test” on Page 5-29.
4. Install AC power cabling to cabinets.“AC Power Cabling Installation” on Page 5-30.
5. Install reserve power cabling.“Reserve Power Installation” on Page 5-32.
6. Install PCBs and PCB cabling.Figures 5-10, 5-12, and 5-21. 
						

							DK424 Installation
Power Supply Installation
5-8Strata DK I&M    5/99
Power Supply Installation
The Base and Expansion Cabinets are shipped from the factory without the power supply installed. 
The DK424 cabinets use the same power supply (RPSU280 and/or RPSU424) as the DK280.
NoteRPSU280 and RPSU424 are fit, form, and functionally the same. They can be 
interchanged and mixed in DK280 and DK424 systems.
ä
To install power supplies in cabinets of new or installed systems
1. Remove the power supply from its box. The box should also contain a plastic bag with two 
jumper plugs for the power supply DKSUB or DKSUE connector. An AC power cord and the 
power supply mounting screws are provided with the KSU cabinet.
2. Make sure that the front and right side covers are removed from the cabinet (see Figure 5-2).
3. Slide the power supply into the right side of the cabinet so that its four mounting holes align 
with the four cabinet mounting holes (see Figure 5-3
). (Make sure that the two backplane FG 
wires are positioned between the FG wire holder and the power supply.)
NoteThe backplane FG wires are not safety grounds: they are required for proper system CO 
line operation.
4. Plug the DC OUT cable plug into the DC OUT connector on the power supply. (The plug has 
a guide key on it to ensure that it is plugged in correctly.)
5. Secure the FG wire spade lug to the power supply with the FG screw.
6. Secure the power supply to the cabinet with the four provided screws.
7. If the cabinet is the Base Unit, plug the jumper plug that has a wire connected into the 
“DKSUB” jumper connector on the power supply.
8. If the cabinet is an Expansion Unit (DKSUE), plug the jumper plug that does not have a wire 
connected into the “DKSUE” jumper connector.
Important!The power supply with the “DKSUB” jumper plug (plug with wire) installed is the 
master and has ON/OFF control over all other power supplies, which are 
designated as slaves. If the master power supply is turned OFF or ON, all other 
power supplies will automatically turn OFF or ON. (Individual power supplies must 
be turned on.)
Power supplies that have the “DKSUE” jumper plugs (plug without wire) installed 
will not control other power supplies, but can be turned OFF or ON individually 
with their own ON/OFF switch. (The master power supply must be on and the 
intercabinet “Data” ribbon cable must be installed to allow a slave power supply to 
be turned ON.)
9. See Figure 5-3 to ensure that the power supply is properly installed.
10. Install power supplies in all cabinets, using Steps 1~9.
11. Install the Base and optional Expansion Cabinets, ground wiring, AC and reserve power 
cabling, and PCB cabling per the “Recommended Installation Sequence” on Page 5-7.
NotePower Supply testing procedures are provided in the Fault Finding chapter, which should 
be referred to if it is suspected that the power supply does not work properly. 
						

							DK424 Installation
Power Supply Installation
Strata DK I&M 5/995-9
DK424 Installation
Right
Front
Right Side
Cover
Top Cover
(Base Cabinet Only)
Front
Cover
Remove this
screw to remove
the front cover
Loosen three screws 
to remove front coverLoosen two screws
to remove the side covers
(right and left side covers)
Loosen four screws to
remove the top cover:
Note:
Do not remove the top 
cover if the Base Cabinet 
is the top cabinet.
Shift cover 
left to remove 
front cover.
Intercabinet Power Supply 
Ground Wire (Supplied with 
each Expansion Cabinet)
Plastic Bag with Four Power Supply 
Mounting Screws Supplied with each 
Cabinet
1452
Figure 5-2 DK424 Cabinet Front, Side, and Top Cover Removal and Installation 
						

							DK424 Installation
Power Supply Installation
5-10Strata DK I&M    5/99
1
2
3-24VPOWER
+5V
-5V
AC INFGDC OUT
+
BATT-
ON
OFF
FG Wire and Spade Lug
(Functional Ground)
DC Out Connector
FG Wire Holder –24V Circuit
Breakers
Power Indicator
LEDs (Green)
FG Screw (3)
R11 PCTU S11 S12
S13 S14 S15 S16
R11 S11RCTU S12 S13 S14 S15 S16
Bottom (2)
Mounting
Holes
Top (2)
Mounting
Holes
Jumper with wire must be 
installed only in base cabinet 
power supply using this 
connector
Jumper with no wire must be 
installed in all expansion 
cabinet power supplies using 
this connector
DKSUB Ü
DKSUE Ü
4251
24V Circuit Breaker Assignments:
DC Voltage Specification
+5V (+4.5 ~ +5.5)
-5V (–4.5 ~ –5.5), 
Expansion Cabinet only
-24V (–26.3 ~ –27.8)BATT (Volts)
+
–0
–26.3 ~ –27.8*
24V-1
24V-2
24V-3SX1, SX2
SX3, SX4, SX5
SX6, SX7, SX8
EXP. Cabinet
24V-1
24V-2
24V-3S15, S16
S13, S14
S11, S12
Base Cabinet
Base
Jumper Plug
Expansion
Jumper Plug
Red
Wire
+5V No
Wire
0VBlue
Wire
–5VWhite
Wire
+5VGreen
Wire
0V
Green
WireGreen
Wire
0VYellow
Wire
–24VYellow
Wire
–24VYellow
Wire
–24V 0V
DC Voltage Pins
Power Supply
On RPSU424, the BATT output is 0 volts unless 
connected to good batteries
*
ON/OFF
SwitchAC Power Cord
Third Wire Ground or Power 
Supply Daisy Chain Ground 
to Next Power Supply
NotePower Supply Jumpers are 
shipped in a plastic bag 
attached to each power 
supply as follows:
Figure 5-3 DK424 Power Supply (RPSU280 or RPSU424) Installation