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68 Cheetah 36XL Product Manual, Rev. E
Table 16: 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.
Notes [ ]: See page following this table.
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
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
–DBP12969+DP1
–DB153070+DB15
–DB143171+DB14
–DB133272+DB13
–DB123373+DB12
+5 V3474MATED 2
+5 V35755 V GND
+5 V CHARGE36765 V GND
NC [10] 37 77 ACTIVE LED OUT [4] [9]
RMT_START [5] [9] 38 78 DLYD_START [6] [9]
SCSI ID (0) [7] [9] 39 79 SCSI ID (1) [7] [9]
SCSI ID (2) [7] [9] 40 80 SCSI ID (3) [7] [9]