Logic User's Guide Symbios SYM8953U PCI to Ultra2 SCSI Host Adapter

3.75 pc 10.25 pc 11.25 pc 38.25 pc
4.333 pc
48.583 pc
52.5 pc
34.5 pc
44.25 pc
Operational Environment A-9
Note: When operated in the SE mode, all signals with the + suffix are clamped
to ground.
Table A.5 External SCSI Connector J3
Signal Name Pin Signal Name Pin
SD12+ 1 SD12− 35
SD13+ 2 SD13− 36
SD14+ 3 SD14− 37
SD15+ 4 SD15− 38
SDP1+ 5 SDP1− 39
SD00+ 6 SD00− 40
SD01+ 7 SD01− 41
SD02+ 8 SD02− 42
SD03+ 9 SD03− 43
SD04+ 10 SD04− 44
SD05+ 11 SD05− 45
SD06+ 12 SD06− 46
SD07+ 13 SD07− 47
SDP0+ 14 SDP0− 48
GND 15 GND 49
DIFFSENS 16 J3_SENS 50
TERMPWR 17 TERMPWR 51
TERMPWR 18 TERMPWR 52
N/C 19 N/C 53
GND 20 GND 54
SATN+ 21 SATN− 55
GND 22 GND 56
SBSY+ 23 SBSY− 57
SACK+ 24 SACK− 58
SRST+ 25 SRST− 59
SMSG+ 26 SMSG− 60
SSEL+ 27 SSEL− 61
SCD+ 28 SCD− 62
SREQ+ 29 SREQ− 63
SIO+ 30 SIO− 64
SD08+ 31 SD08− 65
SD09+ 32 SD09− 66
SD10+ 33 SD10− 67
SD11+ 34 SD11− 68