SCSI ケーブル長 テクニカル

SCSI Converters enable you to interconnect single-ended and differential interface. SCSI Extenders are serial expanders which extend the parallel SCSI bus even further. Place your hardware in a convenient/secure location thousands of feet from the host!

Single-ended SCSI Transmission Limits

Single-ended SCSI: 6 m (19 feet); 3 m (10 feet) for fast SCSI; 1.5 m (5 feet) for Ultra SCSI! Unassisted Single-ended SCSI: 6 m (19 feet); 3 m (10 feet) for fast SCSI; 1.5 m (5 feet) for Ultra SCSI

Adding a SCSI Switch doubles the distance to 3-12m (10-40 feet)! Adding a SCSI RegeneratoR[tm] doubles the distance to 3-12 m (10-40 feet)
        8bit MS8, MS9
        16bit  SIR-D16C,SIR-D17C

Adding two SCSI Regenerators more than quadruples the distance to 15-25 m (50-80 feet)! Adding two SCSI RegeneratoR[tm]s more than quadruples the distance to 15-25 m (50-80 feet)
        8bit MS8, MS9
        16bit SIR-D16C,SIR-D17C

Two Paralan SCSI Differential Converters used as extenders: 60 m (200 feet)! Two Paralan Differential (HVD) SCSI Converters used as extenders: 60 m (200 feet)
        8bit SD10D,SD11D
        MH16A, MH17A

With Paralan FX50 Fiber Optic Extenders: 750 m (2500 feet)! With Paralan FX50 Fiber Optic Extenders: 750 m (2500 feet)
        Optical FX50, FX51

Low-voltage Differential (LVD) SCSI Transmission Limits

Unassisted LVD SCSI: 12m (40 feet), or 25m (82 feet) point-to-point Unassisted LVD SCSI: 12m (40 feet), or 25m (82 feet) point-to-point.
        - Note: all devices on segment must be LVD, otherwise use Single-ended limits.

Two Paralan LVD/MSE to HVD Converters used as extenders: 74m (240 ft) Two Paralan LVD/MSE to HVD Converters used as extenders: 74m (240 ft)
        16bit MM16, MM17

High-voltage Differential (HVD) SCSI Transmission Limits

Unassisted differential SCSI: 25 m (82 feet)! Unassisted differential SCSI: 25 m (82 feet)

Adding a SCSI RegeneratoR doubles the distance to 50 m (164 feet)! Adding a SCSI RegeneratoR[tm] doubles the distance to 50 m (164 feet)
        8bit   MS8, MS9
        16bit  SIR-D16C,SIR-D17C

Adding two SCSI Regenerators quadruples the distance to 100 m (328 feet)! Adding two SCSI RegeneratoR[tm]s quadruples the distance to 100 m (328 feet)
        8bit MS8, MS9
        16bit  SIR-D16C,SIR-D17C

With Paralan FX50 Fiber Optic Extenders and SCSI Differential Converters: 750 m (2500)! With Paralan FX50 Fiber Optic Extenders and Differential SCSI Converters: 750m (2500 feet)

        Optical FX50, FX51
        8bit   SD10D,SD11D
        16bit MH16A, MH17A











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