Ascotel® IntelliGate® 150/300 as of I7.9
Installation
103
sy
d-
021
0/1.
7
– I7.
9 – 1
2.
2009
Automatic detection of critical power supply situations
All terminals exceptAastra 5370 and Aastra 5380:When a
system terminal (or a second such terminal) is connected to the AD2 bus, the max-
imum power input is automatically determined; all the terminals (incl. EKP, AKB)
connected to the interface are taken into account. The maximum power available is
also determined based on the calculated line length (assumption: wire ø = 0.5 mm).
If the calculated power available is below the maximum possible power input of
the connected terminals, the message "
Power supply critical xy
" is generated on
the terminal connected last (accuracy approx. 150 m).
Terminals Aastra 5370 and Aastra 5380 only:
During startup the Aastra 5370 and Aastra 5380 terminals carry out a detailed
measurement of the available power. A warning is shown on the display if the re-
sult is inadequate: "
Line power too weak: External power supply required!
"
Notes
– Depending on the power available based on the line length on the
AD2 bus the ringing and hands-free volume decreases accordingly.
– The backlighting of the Aastra 5380 display is brighter if the terminal is
powered by a power supply unit.
