1.4 TECHNOLOGY
MEMORY
The system operates using stored program control. This program is stored on a 32MB SmartMedia card inserted
into the Main Control Processor card (MCP). The Smart Media card also provides space for a backup customer
database and a backup operating program. The system boots from a 1 Megabyte boot ROM and downloads the
operating program into thirty two megabytes of DRAM on the Main Control Processor (MCP) card. The customer
database is stored in four megabytes battery backed-up (super capacitor) SRAM. The SRAM is protected for
approximately 2 days.
MICROPROCESSORS
OfficeServ 7200 uses distributed processing. Its primary processor is a 32 bit Motorola MPC855T operating at a
clock speed of 50 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 LCP card for the expansion cabinet. The terti-
ary level of processing is done in the keysets. The digital keysets use a Hitachi H8 processor for data communica-
tion within the system.
1.5 PROGRAMMING
The OfficeServ 7200 is a self-configuring system. This means that immediately after applying power, the
OfficeServ 7200 reads the types and locations of all installed interface cards and keysets and assigns default data
to them. This data provides for system operation within a few minutes after applying power. All trunks and sta-
tions are assigned three or four digit numbers according to the settings of the switches on the MCP card and the
default numbering plan. This numbering plan is flexible and may be changed to suit customer requirements. The
installing technician customizes this default data to meet the end user’s requirements.
The system can be programmed from any LCD display keyset without interrupting system 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 levels are con-
trolled by a different security passcodes and access procedure.
The OfficeServ 7200 also allows the use of a proprietary computer program called OfficeServ Manager (OSM).This
permits a technician to program the system using a personal computer. OSM can be used on-site to modify the
customer database or to download (save) the entire customer database to a file. This file can then be saved as a
backup and be uploaded when required to restore the database. Through the use of LAN connection, OSM can
access the OfficeServ 7200 system remotely (off-site) to make database changes or perform uploads or down-
loads of the customer database as if the technician were on-site.
1.6
