User Manual smar-tel-i
75
A
p
pendix
The smar-tel-i can also be operated during a power failure. It has emergency power priority
when the slide switch for emergency power on the left side is positioned toward the rear in
the direction of the display (refer to the overview-illustration at the front).
If smar-tel-i is not positioned to emergency power, it is not possible to use the telephone dur-
ing a local power failure!
If you operate your smar-tel-i on an AUERSWALD PBX, you have two options for maintain-
ing operations.
햲
PBX operations can be maintained for five hours during a power failure by using an unin-
terrupted power supply from Auerswald. You can then continue to telephone, both inter-
nally and externally. Four ISDN telephones (e.g. smar-tel-i) continue to be supplied on
the internal bus. ISDN devices that have their own power supply are not functional in this
case.
햳
You use an ISDN-AUTOSWITCH (Art.-Nr.: 90484).This switches a telephone that is set
for emergency current during a power failure from the internal S
0
bus to the network ter-
minal of your EURO-ISDN interface. This telephone will then be supplied by the “emer-
gency supply“ of the switching station (only sufficient for one telephone). Telephoning
internally with the PBX is no longer possible.
If your smar-tel-i is operated directly on the network terminal of your EURO-ISDN inter-
face, current is supplied directly from the switching station during a local power failure. This
“emergency supply“ is only sufficient for one end-device per ISDN connection. Therefore
only one end-device may be set for emergency current per ISDN connection. Then, only one
telephone can be used that is being supplied with emergency current.
If the smar-tel-i is operating under emergency conditions, the following functions are
limited:
앫
The display turns off after being approximately 30 seconds in a non-working state.
앫
Dialing is only possibly by picking-up the receiver or after pressing the loudspeaker key
(no dialing preparation).
앫
The time mode no longer functions. Accordingly, appointment calls are no longer possi-
ble. Additionally, the call list does not store time and date. After power has been restored,
the time must be reset.
6. 3
Emergency Operation with the smar-tel-i
