Ascotel® IntelliGate® 2025/2045/2065 as of I7.9
54
Expansion Stages and System Limits
sy
d-
020
4/1.
7
– I7.
9
– 1
2
.2009
Overload shutdown
A red LED (OVLD) on the connector strip above the 7-segment display is used to
signal that the rated power (100%) of the terminal power supply has been ex-
ceeded (see
). If the rated power is exceeded for more than approx. 4 sec-
onds, the event message "
Terminal Power Supply: Overload
" is generated.
If the rated power is exceeded by 25% for more than approx. 4 seconds, the event
message "
Terminal power supply: Switch off
" is generated. The power supply is then
shut down step by step, starting with the expansion slots with the highest num-
bers.
Once the power demand drops back below 100% as a result of the gradual shut-
downs, the disconnected ports are reconnected again after approx. 10 seconds.
(Once power is restored, it can take up to 90 seconds for terminals that were in an
active connection at the time of the shutdown to be up and running again.) If 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).
3. 7. 5. 2
Limits per terminal interface
The power supply-related limit per terminal interface depends on the following
variables:
•
Terminals used
•
Bus configuration
•
Line length and conductor cross-section
For information on the calculations refer to
"Terminal interfaces", page 108
.
4)
for each AD2 interface
