CHAPTER 2 INSTALLATION
External Tone Source/Announcement Machine (DK/TNT/MP)
NEAX2000 IVS
2
Installation Procedure Manual
ND-70928 (E), Issue 1.0
Page 179
• If a D.C. voltage is supplied with the tone from the external tone source/announcement ma-
chine, a transformer or coupling capacitor should be used as shown below.
Figure 2-86 Connecting External Tone Source/Announcement Machine Supplied
with D.C.
TO PBX
TO COT
Ring
Tip
K
TRANSFORMER
SOURCE
CAPACITOR
SOURCE
TO COT
Tip
K
Ring
TO CONTROL CIRCUIT
FROM PN-DK00
2µF
TO PBX
TO CONTROL CIRCUIT
FROM PN-DK00
CAPACITOR
2µF
R
R
EXTERNAL TONE SOURCE/
EXTERNAL TONE SOURCE/
DC
VOLTAGE
SOURCE
DC
VOLTAGE
SOURCE
ANNOUNCEMENT MACHINE
ANNOUNCEMENT MACHINE