Instruction manual

Strata CTX670 Overview
CTX670 Processor Circuit Cards
16 Strata CTX General Description 10/04
CTX670 Processor Circuit Cards
The system operates with the BCTU only or the BCTU and BEXU processor circuit cards that
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.
Large-scale Integrated (LSI) circuits
The processor has LSI circuits that support the following:
• BCTU provides 16 built-in DTMF receivers; 32 available using the BCTU and BEXU. For five
or more DTMF receivers, appropriate licenses are required. See
“CTX670 License Control” on
page 17.
• BCTU provides 16 built-in Busy Tone (BT) detectors for Auto Busy Redial (ABR); 32
available using the BCTU and BEXU.
• BCTU provides 64 built-in conference circuits; up to 96 conference circuits are available using
the BCTU and BEXU. (See
Table 12 on page 26 for more information).
• Built-in, adjustable, digital volume PAD technology enables audio volume to be adjusted in
eight steps to compensate for conference and/or CO line network losses.
Memory Protection Battery
If commercial AC power is lost or if a system is moved or stored without power, the processor has
an internal battery that protects data and the customer’s programmed configuration from memory
loss. This information will be maintained in a powerless system for at least six years.
Music-on-hold/Background Music Interface
An RCA jack and volume control are built into the processor to interface with a Music-on-hold
and/or Background Music source. With the CTX670, you can have up to 15 MOH/BGM sources
by adding:
• Up to two BIOU circuit cards, each provides three MOH/BGM input sources.
• An RSTU circuit card that provides up to eight MOH/BGM input sources.
• MOH/BGM source volume adjustment is controlled by software programming.
SmartMedia Memory
The BCTU processor has an on-board SmartMedia card slot. A SmartMedia flash memory card
can be inserted to backup and restore customer program data. It also makes it easy to upload
operating system data for software upgrades and is used for maintenance functions (see
“System
Fault Finding and Diagnostics” on page 95 for more details).