Toshiba Strata Dk14, Dk40i, Dk424 Installation And Maintenance Manual

DK40i Installation
MDF Wiring Diagrams
Strata DK I&M 5/993-43
DK40i Installation
Figure 3-27 MDF Wiring to CO Lines (TCOU and TDDU)
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Bridging
Clips
66M150 SPLIT BLOCK
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654321Y
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2345
Modular Cords
6-1
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T2
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DK40i Installation
MDF Wiring Diagrams
3-44Strata DK I&M    5/99 

Strata DK I&M 4/994-1
DK424 Configuration
DK424 Configuration4
This chapter explains how to configure the Strata DK424 system. The system has a modular 
design which enables it to support a number of station and CO line configurations. The main 
component of the system is the common control unit (RCTU) Printed Circuit Board (PCB).
The focus of this chapter is a series of worksheets, providing a systematic procedure for 
determining the system’s size. The worksheets also provide space to record the...

DK424 Configuration
System Configuration
4-2Strata DK I&M    5/99
Base Cabinet
The DK424 Base Cabinet provides two designated slots for the RCTU processor and six universal 
slots for station, line, and feature PCBs. It provides six connectors for expanding the system to a 
maximum of six Expansion Cabinets. It comes with a Motherboard Jumper Unit (MBJU) installed 
between the R11 and RCTU slot on the front side of the backplane motherboard. The MBJU is 
removed only when RCTUE/F is installed. MBJU is...

DK424 Configuration
System Configuration
Strata DK I&M     5/994-3
DK424 Configuration
DK424 and DK280 Compatibility
DK424 cabinets replace DK280 cabinets in the DK product line structure. DK424 Expansion 
Cabinets began shipping in June 1995 and DK424 Base Cabinets in February 1997. All old DK280 
Release 1~3 processors and DK280 Base/Expansion Cabinets can be mixed with new DK424 Base 
and Expansion Cabinets with the following criteria (see Ta b l e s  4 - 2 and 4-3):
 
 
©DK424 and DK280 Cabinets can...

DK424 Configuration
System Configuration
4-4Strata DK I&M    5/99
©DK424 Expansion Cabinets provide six universal slots maximum in any configuration with a 
DK280 Base Cabinet, including a DK280 Base Cabinet with an RCTUE/F processor.
©DK424 Expansion Cabinets provide eight universal slots in one configuration only: when 
connected to a DK424 Base Cabinet controlled by an RCTUE/F processor (MBJU jumper 
must be removed - see installation for details). DK424 cabinets provide six universal slots in 
all...

DK424 Configuration
System Configuration
Strata DK I&M     5/994-5
DK424 Configuration
Table 4-5 pertains to a DK424 Base Cabinet with RCTU-A1, A3, A4, B2, BA3/BB3 or BA3/BB4, 
C1/D2, C3/D3 or C3/D4 with MBJU or a DK280 Base Cabinet with RCTU-A1, A3, A4, B2, BA3/
BB3, BA3/BB4, C1/D2, C3/D3, C3/D4, E3/F3, E3/F4.
DK280 to DK424 Upgrades
To upgrade an existing DK280 Base Cabinet to a DK424 Base Cabinet with an RCTUE/F 
processor, see “DK280 to DK424 Base Cabinet Upgrade Considerations” on Page 5-52.
Table...

DK424 Configuration
Features Capacities
4-6Strata DK I&M    5/99
Features Capacities
The features and capacities of DK424 system processors are provided in Tables 4-6~4-8.
Table 4-6 System Feature Capacities
DK424
FeaturesDK14DK40iRCTUARCTUBA/BBRCTUC/DRCTUE/F
Amplified Conferencing 1
1. Requires additional customer-supplied hardware.
02 4 4 4 4
Auto Attendant (built-in) simultaneous 
announcements3 5 12 12 24 24
Caller ID/ANI/CNIS Abandoned Call Numbers:
stored per station10~100 10~100 10~100 10~100...

DK424 Configuration
Features Capacities
Strata DK I&M     5/994-7
DK424 Configuration
Table 4-7 Line Capacities and Universal Printed Circuit Board Slots
DK424
Lines and PCB SlotsDK14DK40iRCTUARCTUBA/BBRCTUC/DRCTUE/F
Universal slots 0  4 1
1. There are four universal slots in the DK40i expansion unit.
6123654
CO lines – loop start 4 12 216 2
2. All CO line capacities assume a PIOU, PIOUS, PEPU, RSSU, or RSIU is installed for RCTUBA/BB, RCTUC/D or 
RCTUE/F, but no Caller ID RCIU2/RCIS PCBs.
48 2144 2200...

DK424 Configuration
System Capacity
4-8Strata DK I&M    5/99
System Capacity
The number of CO lines and stations needed determine the size of the system. Ta b l e s  4 - 9 and 4-12 
show the station and line capacities for eight-port RCOU/RCOS CO line PCBs.
There is a trade-off between stations and lines. Every group of eight stations installed decreases the 
CO line capacity of the system by eight, and vice versa. The exact hardware requirements depend 
on the features required.
 Tables 4-9~4-12 assume...