Technology - Samsung DCS Compact II General Description Manual

DCS Compact II General Description

1.3 Technology

Switching
System switching is accomplished by means of a custom IC "engine" that
provides 256 switchable digital channels. The engine is controlled by its own
16–bit Motorola
Each of the 256 digital channels is automatically assigned to carry voice or data
as required by system operation in a PCM format.
In addition to the 256 channels mentioned above, the systems also utilize Digital
Signal Processors (DSPs). Each DSP may be configured by the switching control
program as a DTMF sender, a DTMF receiver or as a C.O. tone detector on a
per–call basis. Each engine chip contains 4 DSP channels.
Four additional DSPs are added when a MISC card is installed. This means that
the system contains a total of 8 DSP channels when fully expanded. The DSP
channels are fully shared throughout the system as a common resource.
Memory
The systems operate using stored program control. This program is stored in
EPROM chips. All specific customer data is stored in random access memory
(RAM) which is protected against the loss of AC power to the system by an on–
board battery backup system.
Microprocessors
DCS Compact II uses distributed processing. The primary processor of the
system is a 16–bit Motorola® MC68000 operating at a clock speed of 16 MHz.
Secondary processing is in the some special cards like as BRI and also done in
the keysets. The digital keyset uses a Hitachi H8 processor for data
communication within the DCS Compact II.
®
MC 68000 microprocessor and switching control program.
C h a p t e r 1 . S y s t e m O v e r v i e w
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