Toshiba Strata Dk14, Dk40i, Dk424i General Description Manual

Strata DK14
Maximum Line/Station Configurations
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Maximum Line/Station Configurations
The maximum line and station configurations for DK14 are shown in Ta b l e  3.
Table 3 CO Lines and Station Ports
Network Requirements
Network requirements of station/line PCBs and interface cards are summarized in Table 43 on 
Page 122.
DK14 SystemCO Line PortsDigital PortsStandard
Telephone Ports1
1. Standard telephone ports do not support MW lamps on standard telephones.Basic...

Strata DK14
Functional Block Diagram
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Functional Block Diagram
Figure 3 shows the Strata DK14 KSU PCBs and the available lines, stations and peripherals. Basic 
voltage and cabling information is also included.
Figure 3 Functional Block Diagram
SMDR
PrinterTOSHIBA
Standard Telephone
Stand-alone
Data Interface
Shared
Printer
DIUPOWERREADYCONNECTTOSHIBA
Digital Telephone
and Add-on Module
Digital Telephone
and Add-on Module
MOH/BGM Source
DDCB
MDFB
AMP
Digital...

Strata DK14
System Technology
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System Technology
Pulse Code Modulation 
Digital switching talkpaths enable all CO and intercom lines to be accessed simultaneously. 
Analog-to-digital and digital-to-analog conversion is done by CODECs (coder plus decoder) on 
station and CO line PCBs.
Custom Electronic Circuitry 
Large Scale Integration (LSI) technology makes the Strata DK14 circuit designs simple and 
efficient. Gate arrays using very large scale integration save...

Strata DK14
Maintenance and Programming
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Maintenance and Programming
Hardware maintenance and repair procedures describe how to quickly locate, remove, and replace 
defective parts and PCBs. System programming can be performed without taking the system out-
of-service. 
On-site programming can be executed with any 20-button proprietary LCD telephone or with a 
DKi Admin PC connected to an optional maintenance port. 
Off-site programming with DKi Admin, which can help...

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Strata DK40i2
This chapter provides an overview of the Strata DK40i Release 4.3 system and its capacities. 
Release 4.3 enables the DK40i to provide Automatic Call Distribution (ACD), E911 CAMA, T1, 
ISDN PRI and BRI U and S/T interfaces.
The Strata DK40i Base Key Service Unit (KSU) is a compact system that provides many of the 
features offered by much larger systems. The KSU is designed for convenient wall-mounting and 
occupies very little space (see Figures 4, 5...

Strata DK40i
Base KSU Architecture
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Base KSU Architecture
The Strata DK40i Base KSU contains the main processor, operating software, circuitry and the 
following components (see Figure 6). 
Figure 6 Base KSU Interior
Digital Telephone Circuits
The main circuit board (TMAU2) in the Strata DK40i Base KSU has eight integrated circuits that 
can connect to Toshiba-proprietary digital telephones (including the cordless telephone), Stand-
alone Data Interface Units...

Strata DK40i
Base KSU Architecture
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The CO line interface and DID interface unit can be programmed for DTMF or dial pulse signaling 
and each line has a switch to control potential excess volume that could be created by a nearby 
PBX or CO. Built-in gas tubes help protect each TDDU and TCOU line from lightning. An 
optional RDDU (for DID lines) installed in the Expansion Unit requires an external secondary 
protector. DID lines require the optional K5RCU2 tone...

Strata DK40i
Expansion KSU Architecture
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Feature Key (KKYS)
The system can be upgraded with an optional feature key, the KKYS, which installs onto the 
K5RCU PCB in the Base KSU. The KKYS1 provides Automated Attendant (AA); KKYS2 
provides AA and ACD; and KKYS3 provides AA and ACD/MIS.
SMDR, SMDI, ACD/MIS and Maintenance DKi Admin/Modem (TTY) Interface 
(TSIU)
The TSIU PCB provides two RS-232 interface ports (modular jacks) that allow the DK40i system 
to connect to...

Strata DK40i
Station and Line Capacities
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Ta b l e  5 shows maximum capacity for a DK40i system. DKi Quote, an auto quote program that 
runs on a PC with Microsoft® Windows®, is available from Toshiba to generate DK40i quotes 
and configurations. Also, refer to the Strata DK Installation and Maintenance (I&M) Manual, 
Chapter 2 – DK40i Configuration, for more information. 
Table 5 Maximum CO Lines/Ports and BRI Line and Station Circuits
Attaining maximum system...

Strata DK40i
Peripherals
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Table 7 Typical Maximum Capacity Examples with ISDN BRI (S/T and/or U-type) Circuits
Peripherals
The DK40i Base KSU can support a number of peripherals, which are not considered as stations or 
lines and do not affect the maximum station and line capacities. The DK40i Base KSU comes 
standard with built-in interfaces for connecting the following dealer-supplied equipment: an 
amplifier and speaker for paging and night ringing, Music-on-Hold...