DOWNLOAD Panasonic KX-TDA1178X (serv.man5) Service Manual ↓ Size: 2.75 MB | Pages: 66 in PDF or view online for FREE

17

MCSLC24: 24-port extension card for SLTs with Caller ID (FSK), Message Waiting Lamp control, and 2 power failure transfer

(PFT) ports. Maximum power output of 90 V for Message Waiting Lamp control.

Accessories (included): Screws x 2, Ferrite core x 1
User-supplied (not included): Amphenol connector

• Attach the included ferrite core to the cable. Refer to "Attaching a Ferrite Core".
• To connect the Amphenol connector, refer to “Fastening Amphenol Connector".
• For details about power failure transfer, refer to "Power Failure Connections".

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

-

18

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

19

An amphenol 57JE type connector is used on some of the optional service cards.
To connect an amphenol connector, use the spring latch or screw to fix the upper part and use Velcro  tape to fix the lower part
of the connector.

20

When the power supply to the PBX fails, power failure transfer (PFT) will switch from the current connection to the Power Fail-
ure Connection. Refer to "Power Failure Transfer" in the Feature Guide for further information.
Note:

While DC power is provided by the backup batteries, the PBX will remain fully operational and the connection will not switch
to the Power Failure Connection.

Power Failure Connection connects a specific SLT and a trunk in the event of power failure. The following analogue trunk
and extension cards can be used for Power Failure Connections:

• Analog trunk cards: LCOT16 (4 PFT ports), LCOT8 (2 PFT ports), LCOT4 (2 PFT ports), and CLCOT8 (2 PFT ports)
• Extension cards: MCSLC24 (2 PFT ports) and MCSLC16 (2 PFT ports)

To 1 analogue trunk card, connect only 1 extension card.

By programming the PBX, a trunk conversation established during power failure can be maintained even when the power
returns and the connection is switched back to the normal configuration from the Power Failure Connection. However, if no
special programming is performed, the connection will be dropped when power returns.

Accessories (included): none
User-supplied (not included): RJ11 connectors

No.

Signal Name

Function

1

R2

Ring port 2

2

R1

Ring port 1

3

T1

Tip port 1

4

T2

Tip port 2

No.

Signal Name

Function

1

T2

Tip port 2

2

T1

Tip port 1

3

R1

Ring port 1

4

R2

Ring port 2