Toshiba Strata Dk14, Dk40i, Dk424 Installation And Maintenance Manual

DK424 ACD Installation
CCV Configuration Instructions
Strata DK I&M 5/9911 - 23
DK424 ACD Installation
Figure 11-22Connecting Multiple CCV PCs (More than 50’ from Strata DK)
2232
CCVY
Strata DK
SMIS 
Master CCV PC
CCV 
Slave PC1
CCV 
Slave PC2
CCV 
Slave PC3
CCV 
Slave PC4
Second LD can 
be up to four miles from DK
Data 
Distribution
BoxLine Driver 
Modem
Must be less than 50 
from DK
Line Driver 
Modem
ME764-MSP ME764-MSP
PPTC-9 or PPTC-25F connector
PPTC-25F connector 6-conductor, twisted pair phone...

DK424 ACD Installation
Spectrum Electronic Wall Boards
11- 24Strata DK I&M 5/99
Spectrum Electronic Wall Boards
Electronic Wall Boards can be connected to each supervisor’s PC to display call center status data 
over head from the Call Center Viewer application. This provides visibility of important call center 
event information to both supervisors and agents. The supervisor can also send custom, user 
defined, text information to the electronic Wall Board. This can be used for general information,...

Strata DK I&M 5/9912-1
Fault Finding
Fault Finding12
This chapter describes the procedures to diagnose faults in the Strata DK14 and DK40i Key 
Service Unit (KSU) and the DK424 system. Faults are classified and then cleared by replacing the 
malfunctioning unit and by performing operational tests in the sequences by prescribed by the fault 
clearing flowcharts in “Fault Isolation Flowcharts” on Page 12-10.
Fault Classification
A Fault Classification Flowchart is provided to ensure that fault clearing is...

Fault Finding
Parts Return
12-2Strata DK I&M 5/99
Faults in the Strata DK40i and DK424 
are cleared by replacing PCBs, 
telephones (digital or electronic) or the 
power supply, as instructed in the 
flowcharts.
Five symbols are used in the flowcharts, 
which are identified in Figure 12-1.
The flowcharts are sequentially 
arranged to permit rapid fault 
localization within the system. All fault 
clearing must begin with the Fault 
Classification Flowchart, which is 
arranged in the correct fault locating...

Fault Finding
KSU/RCTU Fault Isolation
Strata DK I&M 5/9912-3
Fault Finding
KSU/RCTU Fault Isolation
The DK14 and DK40i KSU circuits, and DK424 RCTU circuits may contain a “soft” fault due to 
an extremely high level of static electricity and/or improper or no System Initialization.
If the KSU or RCTU is found defective during the fault finding procedures, attempt to clear a 
“soft” fault before returning the DK14 or DK40i KSU, or the DK424 RCTU PCB for repair.
ä
To clear a “soft” fault
1. Initialize the...

Fault Finding
DK424 RPSU280 Power Supply Test
12-4Strata DK I&M 5/99
DK424 RPSU280 Power Supply Test
This test applies to the base and expansion cabinet RPSU280 and RPSU424 power supplies. 
Cabinet PCBs may or may not be installed when beginning this test. Some steps in the test require 
an AC/DC voltmeter that can measure up to 50VDC and 150VAC.
Notes
lRPSU280 and RPSU424 power supplies are fit, form, and functionally the same. They can be 
interchanged and mixed in DK280 and DK424 systems.
lTo test...

Fault Finding
DK424 RPSU280 Power Supply Test
Strata DK I&M 5/9912-5
Fault Finding
Make sure that +5V, –5V, and –24V are within the range specified in Figure 12-2. Do this test 
with PCBs inserted; if a voltage(s) is not within specification, remove PCBs, one at a time and 
recheck the voltage. (Power may have to be turned OFF and ON to restore a voltage.) 
Replace any PCB which causes a voltage fault. If voltage tests out of specification with all 
PCBs removed from the cabinet, go to Step 7.
7. Unplug...

Fault Finding
DK424 RPSU280 Power Supply Test
12-6Strata DK I&M 5/99
Figure 12-2 RPSU280 Power Supply Voltage Test Points / Circuit Breakers / Jumper Plugs
R11 PCTU S11 S12
S13 S14 S15 S16
R11 S11RCTU S12 S13 S14 S15 S161
2
3
-24V
POWER
+5V
-5V
AC INFGDC OUT
+
BATT-
ON
OFF
DKSUE DKSUB
4252
DC Out Cable/connector
FG Wire
and
Spade Lug
24VDC Circuit Breaker
Assignments:
Base
Jumper
Plug
AC 
Power 
Cord
ON/OFF Switch
DC VOLTAGE PINS
Power Indicator LEDs (Green)
–24VDC
Circuit
Breakers
Third Wire Ground or...

Fault Finding
Station Cable Continuity Check
Strata DK I&M 5/9912-7
Fault Finding
Station Cable Continuity Check
Voltmeter Test
Use a voltmeter to check cable continuity between the DK40i KSU/DK424 cabinet, digital or 
electronic telephone, DSS console, and the attendant console (DK424). Make tests at the modular 
block. Refer to Ta b l e s  1 2 - 1 and 12-2.
ä
To perform the voltmeter test
1. Refer to Chapter 8 – DK40i/DK424 Universal Slot PCB Wiring for appropriate MDF wiring 
diagrams in Chapters 1...

Fault Finding
Station Cable Continuity Check
12-8Strata DK I&M 5/99
Ohmmeter Test
Check the continuity of the cable run between the KSU/cabinet and digital or electronic telephone 
with an ohmmeter.
ä
To perform the ohmmeter test
1. Disconnect the DSS console, electronic or digital telephone.
2. At the MDF, remove the bridging clips.
3. At the MDF, place shorting jumper wires between the T and R of pair #1 (green-red), the T 
and R of pair #2 (black-yellow) and the T and R of OCA pair #3 (blue-white),...