Technology; Programming - Samsung DS 616 User Manual

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® MC
68000 microprocessor and switching control program. 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. DS 616 is
equipped with one engine chip which contains four (4) DSP channels. 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. It is protected by a super capacitor providing 7 days of memory protection.
MICROPROCESSORS
The DS 616 uses distributed processing. The system's primary processor is a 16 bit
Motorola® MC68000 operating at a clock speed of 8MHz. The secondary level of pro-
cessing is done in the keysets. The digital keyset uses a Hitachi H8 processor for data
communication within the DS 616.

1.4 PROGRAMMING

The DS 616 is self-configuring. This means that when the power is switched ON, the sys-
tem reads the types and locations of all installed cards and telephones and assigns de-
fault data to them. This data provides for system operation within seconds after power is
switched ON. All trunks and stations are assigned according to the default numbering
plan. This numbering plan is flexible and may be changed to suit customer requirements.
The installing technician customizes these default data to meet the end user's require-
ments.
The systems can be programmed from any LCD display keyset without interrupting sys-
tem operation. There are three levels of programming: technician, customer and station.
The technician level has access to all programs and can allow the customer access to
system programs as needed. Technician and customer access is controlled by different
security passcodes and access procedures.
DS 616 also allows the use of a proprietary computer program called PCMMC. This per-
mits a technician to program the system using a personal computer. PCMMC can be used
1.5