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2 FOR SERVICE TECHNICIANS
ICs and LSIs are vulnerable to static electricity.
When repairing, the following precautions will help prevent recurring malfunctions.
1. Cover the plastic part´s boxes with aluminum foil.
2. Ground the soldering irons.
3. Use a conductive mat on the worktable.
4. Do not touch the IC or LSI pins with bare fingers.
3 GENERAL DESCRIPTION
This card is inserted in the free slot of the TDA600 system and is capable of connecting 16 analog loop start lines.
Up to 2 CALLER ID/PAYTONE card can be added on as option cards.
The LPR is an SH-1 (SH7020) with 512Kbyte flash ROM and 128Kbyte SRAM, and supports software version upgrade though
downloading.
4 SPECIFICATION
Functional Block
Analog External Line Interface
DTMF Generator
Option Card
On-board DC/DC Power Supply
Power Failure Forwarding Function
Self-diagnosis Function
ASIC#2 (eSAMSON)
Control Unit
LED Display Circuit
External Interface Connector
Number of Ports
16 ports
Main Function
+30V 30mA Feeding function
Dial Pulse Signal Transmission Function
DTMF Signal Transmission Function
Inversion Detection Function
Bell Detecting Function
Ring-off Signal Detection Function
2w/4w Conversion Function
Surge Protection Function
Returning Sound Generation Function
4ch CODEC Function
• • • • CODEC function
• • • • Power down function
• • • • µ/A Iaw switching function
• • • • Test function (Loop back, Tone generation)
• • • • Programmable digital filtering function
• • • • Serial interface function
• • • • PIO function
Transmits arbitrary tones for every 16 line port
Can be installed two CO-CID/PT cards for eight lines
Input +15V
Output +15V, +5V, +3.3V
Supports four lines
Performed with the extension interface in pairs
Channel Test, Dial Pulse Test, DTMF Test
EC Bus interface function
H.100 Bus interface function, Digital PLL function
Local Bus interface function
Time Switch Function, Gain Control Function
Intelligent PIO Function, JTAG
CPU
SH-1/SH7020 (12.288MHz)
Flash ROM
512Kbyte
SRAM
128Kbyte
Card Status Display LED: 2-color (red/green)
External Line Interface
50pin Amphenol Connector: 1 unit
Power Failure Transfer
4pin Modular Jack: 2 units
Functional contents
5
KX-TDA6181X
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