Section 2: PCB Installation and Startup
2-6
Section 2: PCB Installation and Startup
Aspila EX Hardware Man-
Central Processing Unit (NTCPU) PCB
(Figure 2-3)
The NTCPU controls all the functions and operations of the Aspila EX system using the system soft-
ware loaded into the NTCPU memory. One 32-bit NTCPU PCB must be installed in the CPU slot in
the Main Cabinet.
The NTCPU provides:
•
200 trunk ports maximum
•
256 extension ports maximum (System phones and Single line phones)
•
512 extensions maximum including IP Phones and DECT handsets
•
256 virtual extensions
Note that limitations on the maximum ports available depend on the
The NTCPU provides the following:
•
Five diagnostic LEDs which indicate the status of various system functions
During normal operation, the “RUN” LED will be flashing and the remaining LEDs will
be off.
•
1019x1019 Time Division Multiplex Switch (TDM Switch)
•
Digital Phase Locked Loop (DPLL)
•
Tone Generator
•
DTMF Tone Sender/Receiver; 32 Channels
•
System Tone Sender
•
DTMF Tone Sender
•
Call Progress Tone Detector
•
Conference; 64 Channels
•
Caller ID Receiver/Sender; 64 Channels
•
A reset switch (RES) which can be used to reset the system
•
A load switch (LOAD) which is used for initial system startup or when upgrading system soft-
ware
•
One Serial Port
•
One USB Port
•
One Ethernet Port (10 Base-T/100 Base-TX)
•
One PCMCIA Slot
•
One EXIFU Interface Connector
•
Two Audio Input Terminals (EXMOH & BGM)
•
One Audio Output Terminal (External Page)
•
One Night Mode Terminal for External Switch
•
One Music On Hold External Source
•
HDLC Packet Processing
•
Real Time Clock (tolerance 30 seconds/month)
•
Internal MOH Generation
•
One Connector for DSPDBU Daughter Board
•
One Connector for PAL EPROM
•
One lithium battery (Sony CR2032 or equivalent) which provides battery back-up of system data
and RAM memory for approximately 30 months
CÔNG TY VIỄN THÔNG VIỆT PRO
Chuyên phân phối tổng đài NEC
http://vietpro.com.vn
