IBM PC



Внутренние разъёмы - часть 2


/p>

Таблица 3

Внешние разъемы LD50 и HD50 SCSI

Single-Ended SCSIDifferential SCSIHD-50 Single-Ended SCSIDifferential SCSIHD-50
Signal nameSignal namePin#Signal nameSignal namePin#
  
Ground+ Data Bit 01Data Bit 0? Data Bit 026
Ground+ Data Bit 12Data Bit 1? Data Bit 127
Ground+ Data Bit 23Data Bit 2? Data Bit 228
Ground+ Data Bit 34Data Bit 3? Data Bit 329
Ground+ Data Bit 45Data Bit 4? Data Bit 430
Ground+ Data Bit 56Data Bit 5? Data Bit 531
Ground+ Data Bit 67Data Bit 6? Data Bit 632
Ground+ Data Bit 78Data Bit 7? Data Bit 733
Ground+ Parity Bit 09Parity Bit 0? Parity Bit 034
GroundGround10GroundGround35
GroundGround11GroundGround36
ReservedReserved12ReservedReserved37
GroundGround13Term-n PowerTerm-n Power38
ReservedReserved14ReservedReserved39
GroundGround15GroundGround40
Ground+ Attention16Attention? Attention41
GroundGround17GroundGround42
Ground+ Busy18Busy? Busy43
Ground+ Acknowledge19Acknowledge? Acknowledge44
Ground+ Reset20Reset? Reset45
Ground+ Message21Message? Message46
Ground+ Select22Select? Select47
Ground+ C/D23C/D? C/D48
Ground+ Request24Request? Request49
Ground+ I/O25I/O? I/O50
 

Таблица 4

Разъем HE50 SCSI

Single-Ended SCSIDifferential SCSIHE-50 Single-Ended SCSIDifferential SCSIHE-50
Signal nameSignal namePin#Signal nameSignal namePin#
  
Ground+ Data Bit 01Term-n PowerTerm-n Power26
Ground? Data Bit 02ReservedReserved27
Ground+ Data Bit 13ReservedReserved28
Ground? Data Bit 14GroundGround29
Ground+ Data Bit 25GroundGround30
Ground? Data Bit 26Ground+ Attention31
Ground+ Data Bit 37Attention? Attention32
Ground? Data Bit 38GroundGround33
Ground+ Data Bit 49GroundGround34
Ground? Data Bit 410Ground+ Busy35
Ground+ Data Bit 511Busy? Busy36
Reserved? Data Bit 512Ground+ Acnowledge37
Ground+ Data Bit 613Acknowledge? Acknowledge38
Reserved? Data Bit 614Ground+ Reset39
Ground+ Data Bit 715Reset? Reset40
Ground? Data Bit 716Ground+ Message41
Ground+ Parity Bit 017Message? Message42
Ground? Parity Bit 018Ground+ Select43
GroundGround19? Select? Select44
GroundGround20Ground+ C/D45
GroundGround21C/D? C/D46
GroundGround22Ground+ Request47
GroundReserved23Request? Request48
GroundReserved24Ground+ I/O49
GroundGround25I/O? I/O50




Начало  Назад  Вперед