IBM IC35L036UWDY10 Hard Drive Specifications - Page 39
SCSI signal connector 80 pin SCA-2 model, ANSI SCSI standard.
UPC - 000004119524
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7.1.2.2 SCSI signal connector (80 pin SCA-2 model) The 80-pin SCA-2 model uses a DDK connector which is compatible with SPI-4. Connector contact number 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Signal name 12 Volt Charge 12 Volt 12 Volt 12 Volt Opt 3.3 V/NC Opt 3.3 V/NC -DB(11) -DB(10) -DB(9) -DB(8) -I/O -REQ -C/D -SEL -MSG -RST -ACK -BSY -ATN -P_CRCA -DB(7) -DB(6) -DB(5) -DB(4) -DB(3) -DB(2) -DB(1) -DB(0) -DB(P1) -DB(15) -DB(14) -DB(13) -DB(12) 5 Volt 5 Volt 5 Volt Charge Spindle Sync/NC RMT START SCSI ID (0) SCSI ID (2) Connector contact number 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 Signal name 12V Ground 12V Ground 12V Ground MATED 1 Opt 3.3 V charge/NC DIFFSENS(*1) +DB(11) +DB(10) +DB(9) +DB(8) +I/O +REQ +C/D +SEL +MSG +RST +ACK +BSY +ATN +P_CRCA +DB(7) +DB(6) +DB(5) +DB(4) +DB(3) +DB(2) +DB(1) -DB(0) +DB(P1) +DB(15) +DB(14) +DB(13) +DB(12) MATED 2 5V Ground 5V Ground ACTIVE LED OUT DELAYED START SCSI ID (1) SCSI ID (3) Figure 20. Table of signals NOTE*1: HVD is not supported. NOTE: SCA-2 connector is not mechanically compatible with the 68 pin "P" connector as defined in the ANSI SCSI standard. The connector is intended for direct back plane attachment and is not intended to be cable attached to the bus. Eight-bit devices which connect to the SCA-2 connector should have the following signals inactive (high): -DB(8), -DB(9), -DB(10), -DB(11), -DB(12), -DB(13), -DB(14), -DB(15), -DB(P1). All other signals shall be connected as defined. Ultrastar 146Z10 hard disk drive specifications 23