External Ups - ASCOM Ascotel 2025 System Manual

The battery capacity is rated according to the power requirements and the
required bridging time of the PBX.
Tab. 4.2: Power requirements of the PBX and battery rating (12 V)
Basic system
Ascotel 2025 / 2045
Ascotel 2065
1)
Maximum configuration and max. traffic volume; typical conditions require approx. 60% of the specified
battery capacity
Note:
It is also possible in principle to supply the PBX with the UPS-12V module
via a centralized 12 VDC system.
If a battery isolating point is provided, it must be equipped to handle current of
20 A (at 12 VDC).
4.1.1.2

External UPS

The uninterruptible power supply is selected in accordance with the power
requirements of the PBX (see Tab. 4.2).
If a 12V device is used, the required battery capacity (Ah) can be taken from Tab.
4.2. In the case of an uninterruptible power supply with a 24V or 48V battery,
divide the battery capacity values from Tab. 4.2 by 2 and 4 respectively.
Uninterrupted operation of the PBX is ensured if the UPS takes control of the
power supply within the times indicated in Tab. 4.3:
Tab. 4.3: UPS: Maximum admissible making capacity for the UPS
Mains voltage 230 VAC
Interruption
Drop to < 80%
See also:
For more technical details on the PBX: See "Technical Data", Page 8.11.
HBT_20321104_04/B0_en
PBX power require-
1)
ments
OC W
110 70
210 135
Max. making capacity of the UPS
< 30 ms
< 30 ms
ascom Ascotel 2025/2045/2065
Battery capacity (Ah)
for stored energy time
1 h 4 h
10 30
20 60
PBX Power Supply
1)
12 h
90
180
4.15