Panasonic KX-TDA6178X / KX-TDA6178XJ Service Manual ▷ View online
17
KX-TDA6178X/KX-TDA6178XJ
• +80V/-30V/-55V Converter
For +40V input power supply, Q801 is switched ON with input voltage of 22V to start up input power supply. Q809 is switched
ON with input voltage of 28V to supply 15V to control circuits in all converters. Then all converters start up. Circuit configuration
of -30V/-25V converter is same as +80V. In event of an over current in the 40V input line, due to a short circuit in the MOSFET
Q804/Q805 switches, Q801 is cut off and the input power supply is shut down.
ON with input voltage of 28V to supply 15V to control circuits in all converters. Then all converters start up. Circuit configuration
of -30V/-25V converter is same as +80V. In event of an over current in the 40V input line, due to a short circuit in the MOSFET
Q804/Q805 switches, Q801 is cut off and the input power supply is shut down.
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KX-TDA6178X/KX-TDA6178XJ
6 Location of Controls and Components
6.1.
Names and Locations
Overview
Inside View
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KX-TDA6178X/KX-TDA6178XJ
7 Installation Instructions
7.1.
ECSLC24 Card
Function
ECSLC24: 24-port extension card for SLTs with Caller ID (FSK) and 4 power failure transfer (PFT) ports.
Accessory and User-supplied ltems
Accessories (included): Screws x 2, Ferrite core x 1
User-supplied (not included): Amphenol connector
User-supplied (not included): Amphenol connector
Note:
• To connect the Amphenol connector, refer to “7.2. Fastening Amphenol Connector".
• For details about power failure transfer, refer to "7.3. Power Failure Connections".
• For details about power failure transfer, refer to "7.3. Power Failure Connections".
Pin Assignments
Amphenol Connector
No.
Signal Name
Function
No.
Signal Name
Function
1
RA
Ring port 1
26
TA
Tip port 1
2
RB
Ring port 2
27
TB
Tip port 2
3
RC
Ring port 3
28
TC
Tip port 3
4
RD
Ring port 4
29
TD
Tip port 4
5
RE
Ring port 5
30
TE
Tip port 5
6
RF
Ring port 6
31
TF
Tip port 6
7
RG
Ring port 7
32
TG
Tip port 7
8
RH
Ring port 8
33
TH
Tip port 8
9
RI
Ring port 9
34
TI
Tip port 9
10
RJ
Ring port 10
35
TJ
Tip port 10
11
RK
Ring port 11
36
TK
Tip port 11
12
RL
Ring port 12
37
TL
Tip port 12
13
RM
Ring port 13
38
TM
Tip port 13
14
RN
Ring port 14
39
TN
Tip port 14
15
RO
Ring port 15
40
TO
Tip port 15
16
RP
Ring port 16
41
TP
Tip port 16
17
RQ
Ring port 17
42
TQ
Tip port 17
18
RR
Ring port 18
43
TR
Tip port 18
19
RS
Ring port 19
44
TS
Tip port 19
20
RT
Ring port 20
45
TT
Tip port 20
21
RU
Ring port 21
46
TU
Tip port 21
22
RV
Ring port 22
47
TV
Tip port 22
23
RW
Ring port 23
48
TW
Tip port 23
24
RX
Ring port 24
49
TX
Tip port 24
25
Reserved
-
50
Reserved
-
20
KX-TDA6178X/KX-TDA6178XJ
LED Indications
Indication
Color
Description
CARD STATUS
Green/Red
Card status indication
• OFF: Power Off
• Green ON: Normal (all ports are idle)
• Green Flashing (60 times per minute): Normal (a port is in use)
• Red ON: Fault (includes reset)
• Red Flashing (60 times per minute): Out of Service
• Green ON: Normal (all ports are idle)
• Green Flashing (60 times per minute): Normal (a port is in use)
• Red ON: Fault (includes reset)
• Red Flashing (60 times per minute): Out of Service
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