Toshiba Strata Dk14, Dk40i, Dk424 General Description Manual

Strata DK40i
System Technology
Strata DK General Description     5/9917
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 enables the Strata DK40i circuit designs to be simple and 
efficient. Gate arrays using very large scale...

Strata DK40i
Strata AirLink Wireless System
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Strata AirLink Wireless System
The Strata AirLink™ Wireless Telephone system that is configured to standard ports of the Strata 
DK and many non-Toshiba telephone systems has software that enables a System Administrator or 
technician to quickly diagnose error messages, alarms, and traffic conditions by viewing a PC 
monitor before troubleshooting the hardware.
The Status Window, displayed by the Strata AirLink Manager...

Strata DK General Description    5/9919
Strata DK4243
This chapter presents the Strata DK424, a private 
telephone system tailor-made for small- to 
medium-sized business applications. It employs 
state-of-the-art technology to provide users with 
an efficient, easy-to-use, feature-rich telephone 
system.
A modular design and a choice of four common 
control units enables the system to fit a variety of 
customer needs and capacities. 
The system line and station capacity can be 
increased by adding...

Strata DK424
Architecture
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Expansion and Configuration
System station and CO line capacity is increased with the addition of cabinets and CO line and/or 
station PCBs. Ta b l e s  11~15 show the number of stations and lines allowed when additional 
cabinets and PCBs are used.
Base Cabinet
The Base Cabinet reserves two slots specifically for the system common control unit, labeled 
“R11” and “RCTU.” The Base Cabinet also has six universal slots, labeled “S11 ~ S16,”...

Strata DK424
Architecture
Strata DK General Description    5/9921
Figure 11 Expansion Cabinet Interior
Cabinet PCB Subassemblies
Subassemblies can be added within the Strata DK cabinets to provide additional features or to 
increase line capacity. Also see “Summary of PCBs and Subassemblies” on Page 40.
DTMF Receiver Subassembly (RRCS)
The RRCS translates DTMF tones from DID/Tie/ANI/DNIS/DISA lines, built-in AA, DTMF 
standard telephones, and other peripheral devices to data signals for the system. 
The...

Strata DK424
Maximum Line/Station Capacities
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Maximum Line/Station Capacities
A summary of the maximum number of lines and stations by processor is shown in Ta b l e s  11~19. 
Attaining maximum system capacities depends on power consumption of a particular 
configuration. Power factor calculations in accordance with the Strata DK I&M Manual will 
determine if the maximum capacities in these tables can be reached.
Configurations for a fully expanded system can range...

Strata DK424
Maximum Line/Station Capacities
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Tables 12~15 assume one cabinet slot is used for an Optional Interface PCB.
Table 13 Eight Circuit (RCOU/RCOS) CO Loop Start Analog Lines with Caller ID Maximum Capacities Table 12 Configuration for Four Circuit DID or Tie Line PCBs
1 Cabinet 
RCTUA2 Cabinets 
RCTUB or 
RCTUBA/BB3 Cabinets 
RCTUC/D4 Cabinets 
RCTUC/D5 Cabinets 
RCTUC/D6 Cabinets 
RCTUC/D7 Cabinets 
RCTUE/F
CO 
LinesStationsCO 
LinesStationsCO...

Strata DK424
Maximum Line/Station Capacities
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Table 15 Digital, Tie, DID, Ground/Loop Start Digital T1 and ISDN PRI Lines Maximum Combined Capacities Table 14 Four Circuit (RGLU) CO Ground Start Analog Lines with Caller ID Maximum Combined Capacities
1 Cabinet 
RCTUA2 Cabinets 
RCTUBA/BB3 Cabinets 
RCTUC/D4 Cabinets 
RCTUC/D5 Cabinets 
RCTUC/D6 Cabinets 
RCTUC/D7 Cabinets 
RCTUE/F
Lines Stations Lines Stations Lines Stations Lines Stations Lines Stations Lines...

Strata DK424
Maximum Line/Station Capacities
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Tables 16~19 show system maximum capacity examples with ISDN BRI (S/T and/or U) circuits.
Table 16 RCTUA Maximum Capacity Examples with ISDN BRI (S/T and/or U-type) Circuits
Table 17 RCTUBA/BB Maximum Capacity Examples with ISDN BRI (S/T and/or U-type) Circuits
BRI Station 
Circuits1BRI Station 
B channels1Other Station 
Circuits3BRI Line 
Circuits4BRI Line
B channels4Other Line 
Circuits5
82 16216 0 0 0
612 1624 0
510...

Strata DK424
Power Requirements
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Table 18 RCTUC/D Maximum Capacity Examples with ISDN BRI (S/T and/or U-type) Circuits
Table 19 RCTUE/F Maximum Capacity Examples with ISDN BRI (S/T and/or U-type) Circuits
Power Requirements
Each Base and Expansion Cabinet houses a power supply that generates ±5VDC and -24VDC 
which furnishes power to all of the stations and some of the peripherals that interface with the 
cabinet. A fully loaded Strata DK424 requires an input power...