Read Panasonic KX-TDA6178X / KX-TDA6178XJ Service Manual online
4
KX-TDA6178X/KX-TDA6178XJ
3 Specifications
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.
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.
Functional Block
Functional contents
Extension Interface
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
(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
• Programmable digital filtering function
• Serial interface function
• PIO function
DTMF Receiver
24 lines for each port
Caller ID (FSK)
24 lines for each port
On-board Ringer
20/25Hz 75Vrms
Phase control (Three-phase / Four-phase)
Phase control (Three-phase / Four-phase)
On-board DC/DC Power Supply
Input +15V
Output +3.3V
Input +40V
Output: -30V, -55V, +80V
Output +3.3V
Input +40V
Output: -30V, -55V, +80V
Power Failure Forwarding Function
4 lines supported
Self-Diagnostic Function
Carried out with outside-line interface in a pair (only one port)
Speech path test, Dial pulse test, DTMF test
Speech path test, Dial pulse test, DTMF test
ASIC
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
H.100 bus interface function, Digital PLL function
Local bus interface function
Time switch function, Gain controlling function, FIFO/DPRAM function
Intelligent PIO function
Control Unit
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
• SRAM type (XC3S250E) manufactured by XILINX
• CID128 bytes /ch transmission buffer
LED Display Circuit
Card status indicating LED: Two colors (Red/Green)
External Interface Connector
Extension interface
50pin Amphenol connector: 1
Power failure forwarding 4pin modular jack: 2
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