Connection of External Cables
Figure 93 Example of Door Signal with System Telephone DBC 225
1 Wall terminal box RNV 114 or NEF 181
2 Buffer amplifier
3 Door signal lamp
4 Power supply unit
If using system telephones DBC 22X, an optional unit can be connected with
outlets for door signal and extra bell.
See the installation instructions for TELEPHONE SETS DBC 222 01, DBC 223
01, DBC 224 01, DBC 225 01, KEY PANEL UNIT DBY 419 01 AND OPTION
UNIT DBY 420 01.
6.5 Cordless Extensions
To the ELU31/3, radio base stations, RFPs, are to be connected. For more
information, see the installation instructions for CORDLESS PHONE.
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6/1531-ASP 113 01 Uen J2 2008-07-17
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