ASCOM Ascotel 2025, System Manual

Page: 980 / 1141

ascom Ascotel 2025/2045/2065
HBT_20321104_06/B0_en Function Check 6.7
3.1.2 Testing the 48VDC Module
Testing 230V Mains Operation (if this Operating Mode is available)
• If no mains operation is provided, the following test is irrelevant.
• Battery charge current:
The battery charge current should be less than 0.1 A. This verifies that no
power is drawn from the battery when there is mains power supply.
Testing in Battery Operation
• If no mains operation is provided, the following tests is irrelevant except for cur-
rent measurement.
• Function test:
The system must continue to function uninterrupted after disconnection from
the 230V mains. This can be verified by establishing connection.
• Event message:
On the system terminal configured for this, the event message "PBX on DC
power supply" must be displayed after the predefined time.
• Current measurement:
Depending on the PBX type and level of expansion, the current in the battery
cable is 0.5 to 4 A. If the PBX is the only power consumer, the ratio of the bat-
tery capacity to the measured value gives an indication of the expected bridg-
ing time in the event of mains failure.