NEC NEAX 2000 IPS - Reliability and Availability

Chapter 3 System Highlights
Page 3- 4 NEAX2000 IPS Request For Proposal (RFP) Reference Guide
NDA-24349 Issue 4
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 PIMMD (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%