Specifications

OfficeServ 500 General Description Guide/Ed.00 CHAPTER 1. Introduction To System

4 TECHNOLOGY

4.1 MCP Card

4.1.1 Memory

The system operates using stored program control. This program is stored on a

SmartMedia card inserted into the Main Control Processor card(MCP) and contains a

minimum of eight Megabytes of NAND-Flash memory. Optional, larger capacity,

SmartMedia cards are also available to provide a backup customer database and a

backup operating program. The system boots from a 256 Kbytes boot ROM and

downloads the operating program into four megabytes of DRAM on the Main

Control Processor(MCP) card. The four megabytes of DRAM are increased to 8

megabytes with the addition of the Inter Processor communications Module(IPM) in

an expanded system. The customer database is stored in 1.0 Mbytes of non-volatile

SRAM for a single cabinet system. This expands to 2.5 Mbytes with the IPM

installed and to 3.0 Mbytes with the addition of the optional LAN interface

module(LAN).

4.1.2 Microprocessors

The OfficeServ 500 uses distributed processing. Its primary processor is a 16 bit

(32 bit core) Motorola MC68302 operating at a clock speed of 25 MHz on the MCP

card. This provides all the processing necessary for a single cabinet system. In a multi

cabinet system the secondary level of processing is on the SCP card for the first

cabinet and on the LCP cards for the expansion cabinets. These secondary processors

are MC68302 processors running at 16 MHz and provide local control of each

cabinet. Messaging between the primary and secondary processors is handled by a

MC68302 processor running at 25 MHz located on the Inter Processor

communications Module(IPM) PCB. The tertiary level of processing is done in the

phones. The digital phones use a Hitachi H8 processor for data communication

within the system.

4.2 MCP2 Card

4.2.1 Memory

The system operates using stored program control. This program is stored on a

SmartMedia card inserted into the Main Control Processor card(MCP2) and contains

a minimum of 16Megabytes of NAND-Flash memory. Optional, larger capacity,

SmartMedia cards are also available to provide a backup customer database and a

backup operating program. The system boots from a 512 Kbytes boot ROM and

downloads the operating program into 64 megabytes of DRAM on the Main Control

Processor(MCP2) card. The customer database is stored in 4 Mbytes of non-volatile

SRAM for a single cabinet system.