NAP- 200-007

Sheet 35/42

Termination of Cables on MDF

(b)MDF Cross Connection

Notes: 1. The current capacity of the opto-coupler (PN-DK00 card) is 125 mA.

2.The isolator’s relay must be compatible with nominal 24 Volt circuits, and the suppression diode shown is mandatory.

3.The audio path in the isolator must be capacitor-coupled as shown.

4.The Line-fault detection in the C.O.T. must be disabled. Refer to the Command Manual for details.

 

PIM0

 

LTC0

MDF

 

 

PN-DK00

 

J

 

 

 

 

P

 

 

 

 

K0

1

1

 

+

TO CONTROL

 

 

 

 

GND

CIRCUIT

 

K1

26

26

 

LEN0000

 

 

 

K2

2

2

 

 

 

 

-27V

 

 

 

 

 

 

 

K3

27

27

 

 

 

 

 

 

LT00

K4

3

3

A

 

 

 

 

 

 

K5

28

28

 

 

TO SPEECH

LEN0002

 

 

CIRCUIT

K6

4

4

B

 

 

 

 

 

 

K7

29

29

 

 

 

PN-4COT/PN-2COT

 

 

 

 

 

 

R0

5

5

 

 

 

LEN0004

(No. 0)

30

30

 

 

EXTERNAL MUSIC

 

T0

 

 

 

R1

6

6

 

 

EQUIPMENT

 

 

 

 

LEN0005

(No. 1)

 

 

 

 

 

LT01

T1

31

31

GND

 

CONTROL

R2

7

7

-27V

 

CIRCUIT

LEN0006

 

(Optional)

(No. 2)

32

32

 

 

 

 

T2

 

 

 

 

R3

8

8

A

 

SPEECH

LEN0007

(No. 3)

 

 

 

 

33

33

B

 

PATH

 

T3

 

 

 

 

 

 

 

CIRCUIT

PZ-PW86

 

 

 

 

 

 

-27V

 

 

 

 

 

 

G

 

 

 

 

 

AUSTEL - approved

 

 

 

 

 

 

 

 

 

 

 

 

Line Isolation Unit

Figure 007-21 MDF Cross Connection for External Music Equipment

CHAPTER 3

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NEC 120 manual NAP Sheet 35/42 Termination of Cables on MDF, MDF Cross Connection for External Music Equipment

120 specifications

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