Toshiba CTX28 manual Strata CTX670 Overview, CTX670 Processor PCBs

Strata CTX Configuration

Strata CTX670 Overview

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 Central Office (CO) lines, stations, and peripheral options that best suit your needs.

The CTX670 basic BCTU processor can be configured for smaller systems as a one or two cabinet system with a capacity of up to 192 CO lines and stations combined. It can expand to support up to seven cabinets with a capacity of up to 672 CO lines and stations combined with the BCTU/BEXU processors (see Figure 2-2).

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.

Note The Strata CTX670 system capacities depend on the licenses stored on the system processor and

the hardware described in this chapter. See		5398
	Figure 2-2	CTX 670 Base/
“CTX670 License Control” on page 2-7.
		Expansion Cabinets

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 2-2.

Table 2-2 CTX670 Cabinet Specifications

Cabinet	Weight	Height	Width	Depth
Base Cabinet (CHSUB672A)	31 lbs.	11.625 in.	26.5 in.	10.3 in.
Expansion Cabinet (CHSUE672A)	29 lbs.	9.75 in.	26.5 in.	10.3 in.

CTX670 Processor PCBs

The system operates with the BCTU only or the BCTU and BEXU processor PCBs install in dedicated slots of the Base Cabinet. The BCTU and BEXU 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.

Strata CTX Configuration

Strata CTX I&M 06/04 2-5