Read Panasonic KX-TDE620BX (serv.man2) Service Manual online
10
KX-TDE620BX
AC_ALM
AC alarm signal: This indicates AC voltage cutoff.
RING_SYNC
Trigger signal of Ringer signal generation timing to each internal line card.
CLK_16M
Clock 16.386MHz ASIC and CPU operation Clock.
CTSW_EN
CTSW output enable signal
SHW_CLK
Voice system clock signal from the basic shelf (8MHz)
SHW_nFH
Voice system frame signal from the basic shelf (8kHz)
nIRQ_ASIC
Interrupt signal from the ASIC
nIRQ_CCLINK
Interrupt signal from CCLINK
DATA[31:0]
CPU Data Bus
ADD[16:1]
CPU Address Bus
nCS0
Flash ROM select
nCS2
SDRAM Chip select
nCS4
SRAM Chip select
nCS5
ASIC Chip select
nCS_CCLINK
CCLINK Chip select
nCS_CTSW
CTSW Chip select
nRAS
Row Address strobe: for SDRAM
nCAS
Column address strobe: for SDRAM
RD/nWR
Read / Write Signal for SDRAM
DQM[3:0]
Data input output Mask for SDRAM
L_DATA[15:0]
Local data bus
L_ADD[16:1]
Local address bus
L_nRD
Local read signal
L_nWE0, 1
Local byte write signal
L_nWE
Local write signal
L_R/nW
Local read/write signal
nWR_CCLINK
CCLINK write signal
nDS
CCLINK data strobe signal
nRDY
CPU ready signal
ESLFID[1:0]
Extension shelf ID notification signal
BM_nRESET
Extension shelf reset signal
nDTACK
nDTACK signal from CTSW
nWAIT_NEXUS
Access wait signal from the ASIC
S_RING_SYNC
Ringer synchronous input signal from the basic shelf
S_nRESET
Reset input signal from the basic shelf
CPU_STATUS[1:0]
BUS-S status display
CLK_40M
CircLink operating clock (40.0MHz)
CCLINK_TXD
CircLink send data
CCLINK_RXD
CircLink receive data
CCLINK_TXEN
CircLink send data valid
CLK_20M
CTSW operating clock (20.0MHz)
SHWU[2:0]
Intersystem highway upstream data
SHWD[2:0]
Intersystem highway downstream data
SHWU[2:0]_P/N
Intersystem highway upstream differential signal
SHWD[2:0]_P/N
Intersystem highway downstream differential signal
SHW_CLK_P/N
Intersystem clock differential signal
SHW_nFH_P/N
Intersystem frame timing differential signal
S_RINGSYNC_P/N
Ringer synchronous differential signal
S_nRESET_P/N
Extension shelf reset differential signal
CT_NETREF_P/N
Differential signal of the extension shelf synchronous reference signal
CCLINK_P/N
Circlink communication differential signal
nLOS_P/N
Differential signal for loss of line indicator
CPU_STATUS[1:0]_P/N
Differential signal for BUS-S status
nSLF_PRS
Extension shelf connection display signal
S_ESLFID[1:0]
Extension shelf ID notification signal
+15V
Power supply
3.3V
IC power supply on the card
3.3VB
Backup power supply (3.3V)
2.5V
Power supply for FPGA (IC402)
1.5V
Power supply for CPU (IC200)
Click on the first or last page to see other KX-TDE620BX (serv.man2) service manuals if exist.