Reliability and availability – NEC UNIVERGE NEAX 2000 IPS User Manual
Page 52
Chapter 3 System Highlights
Page 3- 4
UNIVERGE
NEAX
2000 IPS
Request For Proposal (RFP) Reference Guide
Issue 6
Reliability and Availability
Mean Time Between Failures (MTBF)
The MTBF represents the minimum time frame in which a failure of any common equipment --such as
processors, memory, switching, and etc. - may cause a partial system outage. The following table
shows the MTBF in hours and in years for each card and terminal
.
Reliability and Availability Chart
Reliability
Description
Fit
MTBF
years
MTBF
Minute
MTTR
Minute
Availability
ICS VS PIMMJ (BWB)
1868
61.1
32136156
60
99.999813%
SPN-CP24A MP
11849
9.63
5064995
45
99.999112%
SPN-CP24B MP
10798
10.6
5575176
45
99.999193%
SPN-CP31A MP
10700
10.7
5627772
45
99.999200%
PN-CP27A MP
10798
10.6
5575176
0.3
99.999995%
SPN-CP15 FP
3060
37
19460520
5
99.999974%
PZ-M606-A 1269.2
89.94
47304842
10
99.999979%
PZ-PW121
13850
8.2
4312872
5
99.999884%
PZ-PW122 5780
19.8
10414008
10
99.999904%
PZ-PW131 13350
8.6
4523256
15
99.999668%
PN-8LCAA 1934
59
31031640
5
99.999984%
PN-8COTS 3312
34.5
19092348
5
99.999974%
PN-4DATC 5490
20.79
10934708
5
99.999954%
PZ-8PFTB 1439
79.3
41708628
5
99.999988%
PN-CFTB 941
121
63641160
5
99.999992%
PN-CFTC (AP)
6000
19.8
10414008
5
99.999952%
PN-IPTB-B (AP)
5757
19.83
10429787
5
99.999952%
SPN-4VCTI-B 1435.3
79.54
41834858
5
99.999988%
PN-4LCAA 4467
25.6
13464576
5
99.999963%