: , 5ESS
SM, SM SM , SM . : TMS (Time Multiplexed Switch ) MSGS (MeSsaGe Switch). TMS NCT DLI SM (. 3.1). , SM TSI-TMS-TSI, --. TMS , TMS, DLI. CM , .
CM :
- TMSU (TMS Unit), 32 SM;
- CMCU (CM Control Unit);
- MSPU (Message Switch Peripheral Unit) , 12 ;
- MSCU (Message Switch Control Unit).
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SM. ( ), : MSPU, MSCU, TMSU, CMCU TMSU ( ). 30 SM, SM TMS . ( ) , SM 32. - , SM - 190 192, RSM.
: , () (), . ( ) . : CC (Central Control), MAS (MAin Store), DMA (Direct Memory Access), DFC (Disk File Controller) / (Input/Output Processor). (0 1) . - . 3.2.
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C 32- 3B20D. 32- MAS. , 16- , . , C MAS - 850 . - 2048 , MAS 250 . MAS C, MAS MASU (MAS Update) MASUB (MAS Update Bus). MAS CC . CC (Maintenance CHannel), C .
DFC , MAS : ( ) . - 600 , , . 2460 /, 63,5 / , . . , , 15 .
/ MAS, TLWS (Trunk & Line Working Station) . DSCH MAS CPU , PC (Peripheral Controller). (). , 64 . :
Ø ( , PS (Port Switch), );
Ø () TLWS;
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Ø ;
Ø : , ..;
Ø ;
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Ø , , .
, , EA (Emergency Action interface) , .
1. , 5ESS.
2. . 1.
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1. . 2 .
2. . 2 .
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2. . .
3. S, ?
4. .
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