Aastra XS - Page 39

Product Guide - A5000 R5.4 – Aastra X series
BPS0121AENAA01 Page 39/74
Autonomy of an A2XL cabinet:
The Aastra XL battery cabinet guarantees (per AXL cabinet) 2 hours of autonomy, no matter the
configuration of analogue or digital terminals, but without digital terminals Aastra 5370 and 5380.
Beyond these requirements, a specific battery is required
One 80 A.h can guarantee up to 12 hours of autonomy for a maximum consumption of 300 W. It will
be fully charged between 10 and 24 hours. 80 A.h is the maximum capacity recommended for an
A2XL.
For the battery to be fully charged in less than 10 hours, the capacity of the installed battery should not
exceed 40 A.h.
Autonomy
(h)
Capacity of batteries in
A.h
24 25.8 51.5 77.3 103.1 128.9 154.6
16 17.5 35.1 52.6 70.2 87.7 105.3
12 13.6 27.2 40.8 54.3 67.9 80.0
8 9.8 19.6 29.4 39.2 49.0 58.8
6 7.8 15.6 23.4 31.3 39.1 46.9
4 5.8 11.6 17.4 23.1 28.9 34.7
2 3.6 7.2 10.8 14.4 18.0 21.6
1 2.3 4.6 6.9 9.3 11.6 13.9
0,5 1.4 2.7 4.1 5.5 6.9 8.2
A2XL:
total
power required
on 48V
50 100 150 200 250 300
Legend:
OK with Aastra battery cabinet, one battery pack per cabinet, or with a specific
battery cabinet
OK with a specific battery cabinet – loading: < 10 hours. Connect the rectifiers in
parallel.
OK with a specific battery cabinet – loading: > 10 hours. Connect the rectifiers in
parallel.
IMPOSSIBLE, the maximum capacity is 40 A.h per AXL cabinet, i.e. 80A.h for a
A2XL
Important: If a specific battery is used, a special installation wiring is required to place the two power
supply units connected to the batteries in parallel.