Symmetricom SyncServer S100 User Manual page 83

Pag Page e 70 70 ..........................................................................
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87-611x PCA 87-611x PCA
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MC9S12DG256 (U2) MC9S12DG256 (U2)
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Reliability Reliability
MTBF: MTBF:>50,0
Telc Telcordi
Maintainability Maintainability
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The The Sync
Web Web
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..........................................................................99 997-0
BI BIOS OS. . 51 512K 2KB B FL FLASH ASH me memo
de dere red d to to th the e ETX ETX mo modu dule le. . Th
te tent nt in in th this is de devi vice ce is is no non-v n-vol olat atil ile e an and d th there
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es esso sor. r. The There re is is no no pro proce cedu dure re to to cl clea ear r thi this s me
U41 U41 is is a a Xi Xili linx nx XC2 XC2S20 S200 0 FPG
up up. . Th The e pr prog ogra ram m fo for r th this is pa part rt is is co cont ntai aine ned d in in J3 J3's 's Com
lo load aded ed in into to U41 U41 by by U39 U39. . Th
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M9 M93C4 3C46 6 1Kb 1Kb Seri Serial al Mi Micr crowi
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moun unte ted d in in an an 8-p mo 8-pin in so sock cket.
( (U2) U2) 25 256KB 6KB Fl Flas ash h pro progra gram m me
gra gram m st stora orage ge. . Thi This s pa part rt is is not
de devi vice ce is is no non-v n-vol olat atil ile e and and the
to to th the e PCB PCB. .
(U2 (U2) ) 12 12KB KB RAM RAM. . Th This is RAM RAM is is em
co cont nten ent t in in th this is de devi vic c e e is is vo vola lati tile le an and d is is lo los s t t whe
pa part rt is is s s ol olde dere red d to to th the e PCB. PCB.
(U2) ) 4K (U2 4KB B EEPR EEPROM OM. . Th This is EEPR
co conf nfig igura urati tion on da data. ta. Thi This s pa part rt is is so sold ldere
>50,000 00 hour hours s (5.7 (5.7 yea years)
ordia a (Bell (Bellcore core) ) SR332, SR332, Iss
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ary (J3 (J3). ). The The 51 512M 2MB B Com Compac
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memo mory ry. . Thi
(J4). ). The The 51 512M 2MB B Com
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PCB.
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et.
memo mory ry. . Thi This s Fl Flas ash h me memo
not rep reprog rogram ramme med d in in nor norma
there re is is no no pro proce cedur dure e to to cl clear
embe bedd dded ed in in U2 U2 an and d is is us used ed as as op oper erat atin ing g me
when n th the e Sy
EEPROM OM is is em embe bedd dded ed in in U2
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ETX Mo Modu dule le's 's x8 x86 6 pr proc oc- -
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med d ea each ch ti time me th the e bo boar ard d is is po power
memo mory ry an and d is is do down-
when n th the e bo boar ard d is is
gurati ation on (U40 (U40), ), co contr
This is pa part rt is is a a DIP
mory ry is is us used ed for for mi micr cropr oproc oces esso sor r pro
mal l ope operat ratio ion. n. The The co conte ntent nt in in th this is
ear th this is me memo mory ry. . Thi This s pa part rt is is so sold ldere
memo
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U2 an and d is is us used ed to to st stor ore e no non- n-v v ol olat atil ile e
play y int intens ensity ity set settin tings gs. . Calc Calcula
Symmet metric ricom om for for ser
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Reliability Reliability
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