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Nortel BCM50 Reliability Specifications

BCM reliability indicators
These figures allow service plans and sparing strategies to be set.
BCM reliability indicators Description MTBF MTBF Failure rate (hours) (years) (%/year).

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

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
 
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