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NAP- 200-007
Sheet 32/42
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.
PN-DK00
LEN0000
LT00
LEN0002
PN-4COT/PN-2COT
LEN0004
LEN0005
LT01
LEN0006
LEN0007
PZ-PW86
-27V
GND
Figure 007-19 MDF Cross Connection for Paging Equipment
PIM0
LTC0
J
K0
1
K1
26
K2
2
K3
27
K4
3
K5
28
K6
4
K7
29
R0
5
(No. 0)
T0
30
R1
6
(No. 1)
T1
31
R2
7
(No. 2)
T2
32
R3
8
(No. 3)
T3
33
MDF
P
1
GND
26
2
-27V
27
3
28
4
29
5
30
6
31
GND
7
-27V
32
A
8
B
33
AD-25182501
TO CONTROL
+
CIRCUIT
–
A
TO SPEECH
CIRCUIT
B
PAGING EQUIPMENT
CONTROL
CIRCUIT
SPEECH
PATH
CIRCUIT
AUSTEL - approved
Line Isolation Unit
SPEAKER
CHAPTER 3
Page 95
Revision 1.0.1
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