Aria-130 Digital Key Telephone System
Issue: 1.2
Installation Manual
24
2.4.5 MPB (Main Processor Board)
Figure 2.4.5 MPB Configuration
The MPB controls and manages the communication between peripheral interface, supervises all
resources in the system, controls the gain adjustment of PCM signal, generates system tone and
manages call processing of the system.
The MPB, incorporates the system's RAM, master clock, 1 external MOH port, 1 internal MOH source, 1
external paging port, 1 RS-232C port, 1 alarm port, 2 relay contacts and RTC as well as the system's
PCM voice processing and main micro-processor. The micro-processor is a 32 bit high speed RISC CPU
which receives and transmits signaling information from/to other PCBs, controls feature activation, and
PCM time-slot interchange. 2Mbytes of SRAM which are associated with the system database and the
Real-Time-Clock are protected from power loss by a long life high energy lithium battery. On board ROM
contains PCM tone, gain table etc. needed for the digital voice processing.
The 4 Mbytes of flash ROM on PMU1and the 8 Mbytes of flash ROM on PMU2 contain basic system
operating software.
MODU(MODEM Unit), LANU(LAN Interface Unit), SIU(Serial Interface Unit), SMEMU(SRAM Memory
Unit), DMEMU(DRAM Memory Unit) and PLLU can be installed on MPB, if required.
MPB should be installed only in the MPB slot of the 1st KSU.
Add-on boards: MODU, LANU, SIU, SMEMU, DMEMU, PLLU
2.4.6 MISB (Miscellaneous Board)
The MISB incorporates the circuitry and interfaces for common optional features including:
•
External Paging
2 ports
•
External Control Contacts
4 contacts
•
External BGM & MOH
2 ports
•
Alarm/Door Detection
1 input
•
RS-232C(optional SIU)
Not Available
ALARM
PMU
CN17
CN1
CN2
DBID II
CPU
S3C4530A
C
DMEMU
SMEMU
PLLU
CN16
OFF
Serial Port
PJ 1
PJ 2
SIU / MODU
RLY1
JTAG
connector
Battery
Switch
ARIA-130 MPB
LANU
RLY2
Содержание Aria-130
Страница 4: ...Aria 130 Digital Key Telephone System Issue 1 2 Installation Manual 4 Blank sheet...
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Страница 47: ...Aria 130 Digital Key Telephone System Issue 1 2 Installation Manual 47 Figure 3 3 1 KSU Exterior...
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