May 2001
System Hardware Manual
2 - 29
A6-32
400
0-6
42-0
1
–
R
e
le
as
e 4
.0
Ma
y 2
001
4.7.2
Memory Backup
A backup battery is equipped on several of the ETU’s. This
battery retains the system’s memory in the event of an
extended mains power failure where the system backup
batteries have also expired or where the ETU has been
removed from the system.
Table 2-11 External Backup Battery Requirements
Battery
Capacity (Ah)
Backup Duration
Xen Axis
(Max. 1.0A, 230W)
Xen Master
1 Cabinet
(Max. 1.3A, 320W)
Xen Master
2 CabinetS
(Max. 2.0A, 460W)
Xen Master
3 Cabinets
(Max. 2.9A, 690W)
1 hour
4.0
5.2
6.8
8.8
2 hours
8.0
10.4
13.5
17.6
3 hours
12.0
15.6
20.3
26.4
4 hours
16.0
20.8
27.0
35.2
5 hours
20.0
26.0
33.8
43.9
6 hours
24.0
31.2
40.6
52.7
7 hours
28.0
26.4
47.3
61.5
8 hours
32.0
41.6
54.1
70.3
9 hours
36.0
46.8
60.8
79.1
10 hours
40.0
52.0
67.6
87.9
Note 1: The system requires a 24Vdc battery feed and so two 12 Vdc batteries for the quoted capacity
will be required.
Note 2: The figures are based on a fully located system operating throughout the power loss. Backup
durations for an idle system will be approximately twice the quoted figures.
Note 3: Use only Sealed Lead Acid type batteries and always install batteries in accordance with the
relevant regulations.
Table 2-12 ETU Battery Backup Specifications
ETU
Battery
Specifications
Quantity
Approx.
Backup Time
Replacement
Time
CPUB( )-U13 ETU
3.7V, 60mAH Ni-Cd
1
21 days
2 Years
MBD-U13 UNIT
3.7V, 60mAH Ni-Cd
1
21 days
2 Years
MIFM-U13 ETU
3.7V, 60mAH Ni-Cd
1
21 days
2 Years
MIFA-U13 ETU
3.7V, 60mAH Ni-Cd
1
21 days
2 Years
Содержание Xen Master
Страница 1: ...System Hardware Manual NEC Australia Pty Ltd A6 324000 642 01 Release 4 0 May 2001...
Страница 37: ...May 2001 System Hardware Manual 2 19 A6 324000 642 01 Release 4 0 May 2001 Figure 2 1 System Block Diagram...
Страница 123: ...May 2001 System Hardware Manual 5 105 A6 324000 642 01 Release 4 0 May 2001 Figure 5 7 CPUB U13 ETU...