Ascotel IntelliGate 2025/2045/2065
730 PBX power supply Part 4
the limit of 125% is again exceeded, the overload shutdown will trigger once
again.
If an overload occurs, either reduce the required supply power (e.g. by powering
DECT radio units locally) or use the external Auxiliary Terminal Power Supply
(ATPS).
4.3.2 External Auxiliary Terminal Power Supply (ATPS)
An external 40V Auxiliary Terminal Power Supply (ATPS) has to be used if the
internal power supply is no longer sufficient based on the power requirements
calculated for powering the terminals or due to event messages signalling a sup-
ply overload. The ATPS provides a supply power of 250W for the terminals. The
maximum terminal supply requirements for a full configuration of the 2065 sys-
tem is approx. 180 W, or approx. 50 W for the 2045 system.
Note:
It is not possible to use ATPS and a DC supply module (UPS-12V or DC-
48V) at the same time. An external UPS or an inverter is required to be
able to ensure uninterruptible operation when using an ATPS system.
Mouting the ATPS system
The ATPS power supply device is mounted in the immediate vicinity of the PBX.
Wall mounting has to be vertical (connections at the top or at the bottom). The
power supply unit is connected to the mainboard
by its connecting cable (see Fig.
4.20). Connection to the 230 V network is via the standard PBX mains cord.
When a PBX rack version is used, the ATPS can be mounted in the rack plug-in
unit behind the PBX or in a separate plug-in unit altogether.