Aastra XS - Page 20

Product Guide - A5000 R5.4 – Aastra X series
BPS0121AENAA01 Page 20/74
Autonomy of an XS cabinet:
The Aastra XS battery cabinet guarantees:
• 2 hours of autonomy for an empty AXS
• 1 hour of autonomy, no matter the configuration of analogue or digital terminals, but without
digital Aastra 5370 and 5380.
Beyond these requirements, a specific battery is required.
One 15 A.h (13.6 A.h exactly) can guarantee up to 12 hours of autonomy for a maximum consumption
of 50 W. It will be fully charged between 10 and 24 hours. 15 A.h is the maximum capacity
recommended for an AXS.
For the battery to be fully charged in less than 10 hours, the capacity of the installed battery should not
exceed 7.5 A.h.
The table below can be used to look up the type of battery installed on an AXS, according to the total
power consumed out of 48V and the required autonomy.
Autonomy
(h)
Capacity of batteries in A.h
24 12.9 15.5 18.0 20.6 23.2 25.8
16 8.8 10.5 12.3 14.0 15.8 17.5
12 6.8 8.2 9.5 10.9 12.2 13,6
8 4.9 5.9 6.9 7.8 8.8 9.8
6 3.9 4.7 5.5 6.3 7.0 7.8
4 2.9 3.5 4.1 4.6 5.2 5.8
2 1.8 2.2 2.5 2.9 3.2 3.6
1 1.2 1.4 1.6 1.9 2.1 2.3
0,5 0.7 0.8 1.0 1.1 1.2 1.4
AXS :
total
power required
on 48V
25 30 35 40 45 50
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
OK with a specific battery cabinet – loading: > 10 hours
IMPOSSIBLE, the maximum capacity is 15 A.h per AXS cabinet.
Important: If a specific battery cabinet (i.e. no Aastra battery cabinet) is used, the HG4452AA01
battery cable must be ordered.