Toshiba Strara CTX Series, Installation And Maintenance Manual, Page: 19 / 290

Strata CTX Configuration
1-5
Strata CTX I&M September 2002
Strata CTX670 Overview
The Strata CTX670 system provides sophisticated
telecommunication features in a modular system designed
for growth. Its universal slot architecture enables you to
select the combination of Exchange lines, stations, and
peripheral options that best suit your needs.
The CTX670 basic processor can be configured for smaller
systems as a one or two cabinet system with a capacity of up
to 192 Exchange lines and stations combined. It can expand
to support up to seven cabinets with a capacity of up to 672
Exchange lines and stations combined (see
Figure 1-2 ).
System line and station capacity is expanded by adding
processor expansion Printed Circuit Boards (PCBs), cabinets
and line/station PCBs.
The CTX670 easily connects to outside public and private
telephone lines. All of the telephones (stations) tied to the
system can have direct access to each other as well as to the
public and private network.
The Base Cabinet and optional Expansion Cabinets are the
building blocks of the system. Each system has a Base Cabinet, and can have from one to six
Expansion Cabinets. All lines, stations, and options are tied together through the cabinets.
The overall weight and dimensions of the CTX670 cabinets are shown in Table 1-2 .
CTX670 Processor PCBs
The system operates with one set of processor PCBs (BECU/BBCU) that install in dedicated slots of
the Base Cabinet. The BECU/BBCU processor incorporates the following on-board hardware features:
CPU/Memory
The CTX670 uses a high-speed, 32-bit, Reduced Instruction Set Computing (RISC) processor,
Dynamic Random Access Memory (DRAM) working memory, Static Random Access Memory
(SRAM) with lithium battery for back-up memory, and flash program memory.
Table 1-2 CTX670 Cabinet Specifications
Cabinet Weight Height Width Depth
Base Cabinet (CHSUB672F) 14.1kg (31lbs) 29.5cm (11.625in) 67.3cm (26.5in) 26.2cm (10.3in)
Expansion Cabinet (CHSUE672F) 13.2kg (29lbs) 24.8cm (9.75in) 67.3cm (26.5in) 26.2cm (10.3in)
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Figure 1-2 CTX 670 Base/Expansion
Cabinets