NEC Xen Master - Figure 5-38 ECR-U13 Block Diagram - External Ringing

NEC Australia Pty Ltd Xen Master & Xen Axis
5 - 174 Installing Electronic Telephone Units
A6-324000-642-01 – Release 4.0 May 2001
5.7.2 Installation
A maximum of one ECR-U13 ETU can be installed in
both the Xen Master (slots S1-S8) and the Xen Axis (slots
S3 S7).
Figure 5-38 ECR-U13 Block Diagram - External Ringing
1
2
3
4
Ext. Tone Ringer
RL305
RL101
RL102
RL203
RL204
External
Amplifier
CN4
(RCA)
Ext. Tone Ringer
Ext. Tone Ringer
Ext. Tone Ringer
Spkr
Out
Output
from
MDF
ECR-U13 ETU
Ringer
Source
Tone
Night Chime