CHAPTER 2. Hardware of OfficeServ 7030
2-8
© SAMSUNG Electronics Co., Ltd.
Option Board
Base board can mount a MODEM Board, or a EPM board in option.
The MODEM board has the following functions:
Base board has a 2-Wire Full Duplex modem and can commonly use it with
OfficeServ 7000 series system. Be careful of the direction of the Modem board when
mounting/demounting the board to the Base board.
The Modem board operates in OfficeServ 7030 via V.24 interface and uses a modem
chip for Central Office, which can perform Pulse Code Modulation (PCM) highway
interface. In addition, the Modem board supports V.90 protocol. OfficeServ 7030
controls the Modem board via serial communication using standard AT commands.
The EPM board has the following functions:
EPM has three link ports. One is a LAN and the others are HDLC links
EPM is necessary for connection between 4LM and LAN port, connection between
basic cabinet and expansion cabinet with extension cable.
If 4LM is mounted on Base board, EPM must install for connection between the LAN
port of base board and LAN ports of 4LM.
EPM in Base Board must connected EPM in expansion cabinet with three extension
cable which are straight LAN cable.
Caution for using extension cable
Check if extension cable is connected during operation. The expansion cabinet
may malfunction if extension cable is not connected during operation. In that
case, you should connect extension cable again and restart expansion cabinet.
Specification
The specification of Base board sub-control board is as follows:
Table 2.6 Specification of Base Board
Categories
Names
Standards
Processor
M82805
System Clock
375 MHz
CPU
Package
484 BGA (BALL GRID ARRAY)
Capacity
128 MByte
SDRAM (Memory for programs
and data)
Width of Data Bus
32 Bit
Capacity
512 KByte
Flash Memory (For Booting)
Width of Data Bus
8 bit
Capacity
1 GByte
Flash Memory (For Program and
Data)
Width of Data Bus
8 bit
