Karel DS200, Technical Reference And Installation Manual

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DS Series PBX Technical Reference And Installation Guide
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V.2. DS200S & DS200M
V.2.A. CPU200S MODULE
Definition:
The CPU200S Central Processing Module is the brain of the system, and it is a module used
commonly in the DS200S and DS200M exchanges.
It includes microprocessor and memory circuits on it. It is plugged into the second CPU200S
card slot from the left.
Technical Information:
The CPU200S module consists of two different cards. The card at the bottom has the buses
that carry the required signals to the main rack of the exchange, whereas the upper one
contains the entire memory elements and the Power PC (PPC) 850 processor circuits. The
PPC is a RISC based processor of 80 MIPS processing power.
The CPU200S Module is plugged into the corresponding 64-pin connector on the
BPL200S/M backplane and it is fixed to the upper and lower front sections of the metal rack
through the fixing latches that are on the front card cover.
CPU200S contains memory elements such as FLASH ROM, DRAM and EEPROM, and the
switching matrix, as well as the ICP (Intra-rack Communication Protocol). In addition to that,
CPU200S is responsible for generation of system clock pulses.