Panasonic KX-TDA620BX Service Manual ▷ View online
7.3.2. EC Bus System Connection Diagram
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KX-TDA620BX
7.3.3. System Control and Analog Signal Connection Diagram
7.3.4. Power Supply System Connection Diagram
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KX-TDA620BX
8 BUS-S CARD CIRCUIT OPERATION
8.1. BUS-S CARD
8.1.1. Outline
Function
contents
Controller
•
•
•
• Communication between Basic shelf and Expansion shelf via Communication device.
•
•
•
• Followed by Command from EMPR, Control line-cards in Expansion shelf.
CPU
SH4 32bit RISC processor made by HITACHI SH7750RF200 200MHz (16.384MHz*8) Bus
clock 65.536MHz
clock 65.536MHz
Memory
Flash-ROM
4MByte (32Mbit X 1chip, 16bit Bus)
Boot program, Store Operation, Maintenance and Diagnostic Program
Boot program, Store Operation, Maintenance and Diagnostic Program
SRAM
1MByte (32Mbit X 1chip, 16bit Bus)
Fault logging area
Battery Back Up
Fault logging area
Battery Back Up
SDRAM
16MByte (64Mbit X 2chip, 32bit Bus)
For Operation and Maintenance program Work memory
For Operation and Maintenance program Work memory
Interface between each shelf
connect to Basic shelf by Bus Cable (40 pin, 2.2m, with shield)
Control
Control
•
•
•
• Packet Communication
Serial Bus (5Mbps)
Packet controller Made by SMSC/TMC20073
Operation clock 40MHz
•
•
•
• Control signal
Reset signal
Loss Of Sync to Line
Detect of Expansion shelf
Information number of shelf
Synchronous of ringing
Voice
•
•
•
• PCM Highway (8Mbps X 3 line)
•
•
•
• Highway clock (8MHz) and Frame head
•
•
•
• Synchronization signal of Network (like a BRI,E1)
LED display in front panel
Card Status LED on front panel Green /Red
Backboard Interface
EC Bus Interface
TDA system control bus
Synchronous 16 bit parallel bus
Synchronous 16 bit parallel bus
CT Bus Interface
128ch X 8stream Voice channel total 1024ch
In this card Select 384ch from 1024ch and transmit to Basic shelf.
In this card Select 384ch from 1024ch and transmit to Basic shelf.
LED Display on Unit Expansion Shelf Status LED(RUN,ALARM)
Etc.
Etc.
nLOS, POWERTYPE, DC_ALM, AC_ALM, nFAN_ALM, nHALT, RINGER, RING_SYNC
nSLFFAN_ALM
nSLFFAN_ALM
Power Supply
Source: +15V
generate voltage on board: +3.3V +2.5V, +1.5V
generate voltage on board: +3.3V +2.5V, +1.5V
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KX-TDA620BX
8.1.2. Description of Each Part
LED Lamp
Green: indicates normal status
Red: indicates reset or error status
Flashing Red: indicates OUS status
Red: indicates reset or error status
Flashing Red: indicates OUS status
BUS Cable Connector
Used to connect to BUS-M
BUS Cable Shield
Connects the shield line of the bus cable
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KX-TDA620BX
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