elmeg C46e Description And Installation page 47

2.5.5 Interfacing of a central alarm bell
The central alarm bell is connected when an external call via the switchable call
mode is present at the PABX. A central alarm bell (loud tone bell) installed in a
factory shop or outside enables the call to be heard at these places. Interfacing:
Figure 33 shows an AC alarm bell supplied from the PABX. When a DC alarm
bell is connected, use an external power supply. An external power supply
system via the bell transformer is then connected instead of power supply from
the PABX.
B ell transfo rm er
2 3 0 V ~
O p erating vo ltag e fo r
c entral alarm b ell
Fig. 32: Central alarm bell
Only possible in slot for TFE1.
PAB X
RWS
o rr
C entral alarm b ell
43
TFE m o d ule
Potential-free c ontac t for
ac tivating the c entral alarm b ell
~