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Cheetah 10K.7 SCSI Product Manual, Rev. D Table 15: LW 68-conductor LVD P cable signal/pin assignments [11] Note. Note: A minus sign preceding a signal name indicates that signal is active low. Signal name [1] Connector contact number [3] Cable conductor number [2] Connector contact number [3] Signal name [1] +DB12 1 1 2 35 –DB12 +DB13 2 3 4 36 –DB13 +DB14 3 5 6 37 –DB14 +DB15 4 7 8 38 –DB15 +DBP1 9 39 –DBP1 +DB0 6 11 12 40 –DB0 +DB1 7 13 14 41 –DB1 +DB2 8 15 16 42 –DB2 +DB3 9 17 18 43 –DB3 +DB4 19 44 –DB4 +DB5 11 21 22 45 –DB5 +DB6 12 23 24 46 –DB6 +DB7 13 25 26 47 –DB7 +DBP 14 27 28 48 –DBP Ground 29 49 Ground DIFFSNS [8] 16 31 32 50 Ground TermPwr 17 33 34 51 TermPwr TermPwr 18 35 36 52 TermPwr Reserved 19 37 38 53 Reserved Ground 39 54 Ground +ATN 21 41 42 55 –ATN Ground 22 43 44 56 Ground +BSY 23 45 46 57 –BSY +ACK 24 47 48 58 –ACK +RST 49 59 –RST +MSG 26 51 52 60 –MSG +SEL 27 53 54 61 –SEL +C/D 28 55 56 62 –C/D +REQ 29 57 58 63 –REQ +I/O 59 64 –I/O +DB8 31 61 62 65 –DB8 +DB9 32 63 64 66 –DB9 +DB10 33 65 66 67 –DB10 +DB11 34 67 68 68 –DB11 Notes [ ]: See page following Table 17. Cheetah 10K.7 SCSI Product Manual, Rev. D Table 16: LC 80-pin single-ended (SE) I/O connector pin assignments [11] Note. A minus sign preceding a signal name indicates that signal is active low. Signal name [1] Connector contact number [3] Signal number [3] Contact name[1] 12 V CHARGE 1 41 12 V GND 12 V 2 42 12 V GND 12 V 3 43 12 V GND 12 V 4 44 MATED 1 [12] NC [10] 5 45 NC [10] NC [10] 6 46 DIFFSNS [8] –DB11 7 47 GND –DB10 8 48 GND –DB9 9 49 GND –DB8 10 50 GND –I/O 11 51 GND –REQ 12 52 GND –C/D 13 53 GND –SEL 14 54 GND –MSG 15 55 GND –RST 16 56 GND –ACK 17 57 GND –BSY 18 58 GND –ATN 19 59 GND –DBP 20 60 GND –DB7 21 61 GND –DB6 22 62 GND –DB5 23 63 GND –DB4 24 64 GND –DB3 25 65 GND –DB2 26 66 GND –DB1 27 67 GND –DB0 28 68 GND –DP1 29 69 GND –DB15 30 70 GND –DB14 31 71 GND –DB13 32 72 GND –DB12 33 73 GND +5 V 34 74 MATED 2 +5 V 35 75 5 V GND +5 V 36 76 5 V GND Cheetah 10K.7 SCSI Product Manual, Rev. D Table 16: LC 80-pin single-ended (SE) I/O connector pin assignments [11] (Continued) Note. A minus sign preceding a signal name indicates that signal is active low. Signal name [1] Connector contact number [3] Signal number [3] Contact name[1] NC [10] 37 77 ACTIVE LED OUT [4] [9] RMT-START [5] [9] [12] 38 78 DLYD-START [6] [9] [12] SCSI ID (0) [7] [9] [12] 39 79 SCSI ID (1) [7] [9] [12] SCSI ID (2) [7] [9] [12] 40 80 SCSI ID (3) [7] [9] [12] Notes [ ]: See page following Table 17. Cheetah 10K.7 SCSI Product Manual, Rev. D Table 17: LC 80-pin single-ended (LVD) I/O connector pin assignments [11] Note. A minus sign preceding a signal name indicates that signal is active low. Signal name [1] Connector contact number [3] Signal number [3] Contact name[1] 12 V CHARGE 1 41 12 V GND 12 V 2 42 12 V GND 12 V 3 43 12 V GND 12 V 4 44 MATED 1 [12] NC [10] 5 45 NC [10] NC [10] 6 46 DIFFSNS [8] –DB11 7 47 +DB11 –DB10 8 48 +DB10 –DB9 9 49 +DB9 –DB8 10 50 +DB8 –I/O 11 51 +I/O –REQ 12 52 +REQ –C/D 13 53 +C/D –SEL 14 54 +SEL –MSG 15 55 +MSG –RST 16 56 +RST –ACK 17 57 +ACK –BSY 18 58 +BSY –ATN 19 59 +ATN –DBP 20 60 +DBP0 –DB7 21 61 +DB7 –DB6 22 62 +DB6 –DB5 23 63 +DB5 –DB4 24 64 +DB4 –DB3 25 65 +DB3 –DB2 26 66 +DB2 –DB1 27 67 +DB1 –DB0 28 68 +DB0 –DBP1 29 69 +DP1 –DB15 30 70 +DB15 –DB14 31 71 +DB14 –DB13 32 72 +DB13 –DB12 33 73 +DB12 +5 V 34 74 MATED 2 +5 V 35 75 5 V GND +5 V CHARGE 36 76 5 V GND Cheetah 10K.7 SCSI Product Manual, Rev. D Table 17: LC 80-pin single-ended (LVD) I/O connector pin assignments [11] (Continued) Note. A minus sign preceding a signal name indicates that signal is active low. Signal name [1] Connector contact number [3] Signal number [3] Contact name[1] NC [10] 37 77 ACTIVE LED OUT [4] [9] RMT_START [5] [9] [12] 38 78 DLYD_START [6] [9] [12] SCSI ID (0) [7] [9] [12] 39 79 SCSI ID (1) [7] [9] [12] SCSI ID (2) [7] [9] [12] 40 80 SCSI ID (3) [7] [9] [12] Notes [ ]: See page following this table. Cheetah 10K.7 SCSI Product Manual, Rev. D Notes [ ] for Tables 14 through 17. [1] See Section 9.6.4.1 for detailed electrical characteristics of these signals. [2] The conductor number refers to the conductor position when using 0.025-inch (0.635 mm) centerline flat ribbon cable. Other cables types may be used to implement equivalent contact assignments. [3] Connector contacts are on 0.050 inch (1.27 mm) centers. [4] Front panel LED signal; indicates drive activity for host front panel hard drive activity indicator. [5] Asserted by host to enable Motor Start option (enables starting motor via SCSI bus command). [6] Asserted by host to enable Delayed Motor Start option (motor starts at power on or after a delay of 12 seconds times drive ID). This and [3] above are mutually exclusive options. [7] Binary code on A3, A2, A1 and A0 asserted by host to set up SCSI bus ID in drive. [8] GND provides a means for differential devices to detect the presence of a single ended device on the bus. Drive will not operate I/O bus at Ultra2 or faster SCSI...

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