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KX-TDA6178
3 Specifications
Functional Block
Extension Interface
DTMF Receiver
Caller ID (FSK)
On-board Ringer
On-board DC/DC Power Supply
Power Failure Forwarding Function
Self-Diagnostic Function
ASIC
Control Unit
LED Display Circuit
External Interface Connector
4 General/Introduction
4.1.
General Description
This card is plugged into a free slot on the TDA600 systems and randomly connects up to 24 SLT devices.
Can only be installed in shelves in which a PSU-L is intalled.
This card sends Caller ID signal to extension ports.
The LPR is SH-1(SH7020), and the memory is composed of a 512K byte Flash ROM and a 128K byte SRAM.
It also supports a software upgrade by downloading the latest version.
Number of Ports
24 ports
SLT Interface
-26V 26mA Feeding function
(Voltage in ports 1-8 are switched over to -45V, depending on the circuit dis-
tance.)
Dial-pulse signal detecting function
DTMF signal detecting function
Bell signal issuing function
Hook detecting function
Ringtrip detecting function
2W/4W converting function
Surge protective function
CODEC function
• Test function (Loop back, Tone generation)
• Programmable digital filtering function
• Serial interface function
• PIO function
24 lines for each port
24 lines for each port
20/25Hz 75Vrms
Phase control (Three-phase / Four-phase)
Input +15V
Output +3.3V
Input +40V
Output: -30V, -55V, +80V
4 lines supported
Carried out with outside-line interface in a pair (only one port)
Speech path 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 controlling function, FIFO/DPRAM function
Intelligent PIO function
CPU
SH-1/SH7020 (12.288MHz)
Flash ROM
512Kbyte
SRAM
128Kbyte
FPGA
• Interface between codec and CPU
• SRAM type (XC3S250E) manufactured by XILINX
• CID128 bytes /ch transmission buffer
Card status indicating LED: Two colors (Red/Green)
Extension interface
50pin Amphenol connector: 1
Power failure forwarding 4pin modular jack: 2
4
Functional contents
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