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Nortel BCM400 Reliability Specifications
BCM reliability indicators

The table on the right provides an estimate of the failure rates of the Nortel Business ommunications Manager (BCM) systems and modules. The failure rates are expressed in Mean Time Between Failures (MTBF) in hours and in years, as well as an annualized percentage (%/year).

These figures allow service plans and sparing strategies to be set.

BCM reliability indicators Description MTBF MTBF Failure rate

BCM400 Base System: 0x0 with Motherboard, 376,780 43.1 2.3%
CPU, RAM, HDD, PS, Cooling Fan, Modem.
With 2 MSPEC packs

BCM400 Base System: 0x0 with Motherboard, 328,699 37.6 2.7%
CPU, RAM, HDD, PS, Cooling Fan, Modem.
With 4 MSPEC packs

BCM200 Base System: 0x0 with Motherboard, 411,748 47.1 2.1%
CPU, RAM, HDD, PS, Cooling Fan, Modem.
With 1 MSPEC pack

BCM200 Base System: 0x0 with Motherboard, 380,277 43.5 2.3%
CPU, RAM, HDD, PS, Cooling Fan, Modem.
With 2 MSPEC packs

BCM200 Base System: 0x0 with Motherboard, 331,322 37.9 2.6%
CPU, RAM, HDD, PS, Cooling Fan, Modem.
With 4 MSPEC packs

BCM Expansion Cabinet: 2,168,016 248.0 0.4%
0x0 with HUB, PS, Cooling Fan

BCM400 Base System: 0x0 with Motherboard, 277,121 31.7 3.2%
CPU, RAM, Redn. HDD, Redn. PS, Redn.
Cooling Fan, Modem. With 2 MSPEC pack

BCM400 Base System: 0x0 with Motherboard, 250,021 28.6 3.5%
CPU, RAM, Redn. HDD, Redn. PS, Redn.

Cooling Fan, Modem. With 4 MSPEC packs
BCM Expansion Cabinet: 0x0 with HUB, Redn.
PS, Redn. Cooling Fan 1,158,315 132.5 0.8%

BCM50a 2.0 384,469 43.9 2.28%

BCM50 2.0 662,388 75.6 1.32%

BCM50e 2.0 542,650 61.9 1.62%

BCM50b 2.0 562,221 64.1 1.56%

BCM50ba 2.0 445,883 50.9 1.97%

BCM50be 2.0 473,534 54.0 1.85%

BCM50 Expansion 2,098,284 239.4 0.42%

BCM400 MSC Media Services Card without MSPEC 1,824,455 208.7 0.5%

BCM400 MSC Media Services Card with 2 MSPEC 1,063,027 121.6 0.8%

Technical Bulletin

BCM reliability indicators — continued
Description MTBF MTBF Failure rate
(hours) (years) (%/year)
BCM400 MSC Media Services Card with 4 MSPEC 749,189 85.7 1.2%

BCM200 MSC Media Services Card without MSPEC 1,918,869 219.5 0.5%

BCM200 MSC Media Services Card with 2 MSPEC 1,093,624 125.1 0.8%

BCM200 MSC Media Services Card with 4 MSPEC 764,925 87.5 1.1%

4 Port Global Analog Trunk Media Bay Module (GATM4) 3,942,642 451.0 0.2%

8 Port Global Analog Trunk Media Bay Module (GATM8) 2,762,472 316.0 0.3%

COMBO CTM4 and DSM16 single density (COM4X16) 1,097,121 125.5 0.8%

4 Port BRI S/T Media Bay Module (BRI4) 2,456,502 281.0 0.4%

Digital Trunk Media Bay Module (DTM) 3,243,282 371.0 0.3%

R2MFC: E1-R2 MFC Media Bay Module 979,104 112.0 0.9%

16 Stn Digital Station Media Bay Module+ (DSM16+) 3,252,024 372.0 0.3%

32 Stn Digital Station Media Bay Module+ (DSM32+) 1,835,820 210.0 0.5%

8 Stn Analog Station Media Bay Module+ (ASM8+) 1,660,106 189.9 0.5%

8 Stn Global Analog Station Media Bay Module (GASM8) 1,626,012 186.0 0.5%

Digital Drop and Insert MUX Media Bay Module (DDIM) 2,045,628 234.0 0.4%

Fiber Expansion Media Bay Module (FEM) 821,748 94.0 1.1%

8 Port Global Analog Trunk and 16 port Digital Station 1,358,507 155.4 0.6%

Media Bay Module (G8X16 RoHS)

ADID4 1,526,344 174.1 0.6%

ADID8 1,250,828 142.7 0.7%

BCM Embedded Modem 7,188,547 822.3 0.1%

NA WAN Interface Card (V.35/T-1) 2,773,837 317.3 0.3%

Dual WAN Interface Card (V.35/V.35) 2,773,837 317.3 0.3%

Int’l WAN Interface Card (V.35/X.21) 2,773,837 317.3 0.3%

BCM Universal Power Supply 5,631,596 644.2 0.2%

BCM400 Redundant PS Module, Single 4,175,179 477.6 0.2%

BCM200/400 Mother Board 1,267,590 145.0 0.7%

BCM400/1000 Case Cooling Fan 9,972,874 1,140.8 0.1%

BCM200 Case Cooling Fan 9,972,874 1,140.8 0.1%

BCM50 Coling FAN 9,972,874 1,140.8 0.1%

BCM200/400 CPU cooling FAN 19,944,873 2,281.5 0.0%

BCM 128 MB Memory Module 21,312,996 2,438.0 0.0%

BCM 256 MB Memory Module 21,312,996 2,438.0 0.0%

BCM Programmed Hard Drive 2,849,018 325.9 0

 

 
 
If you have any queries or would like more information about any of the solutions outlined, please contact us or request a call back. Alternately, you can call us on 905 695 2241 or 877 888 3588 for more immediate help and advice.
 
 Links
 

BCM 400

BCM 400 Power Consumption

BCM 400 Reliability

BCM 400 Technical Specifcations

BCM 400 Case Studies

BCM 400 & 200

 
   
 
     

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