Safety Information and Technical Specifi cations B: Ultra 320 SCSI Connector (LVD1) SCSI Connector Pin Defi nitions There is a Ultra 320 SCSI connector, marked "B" on the layout, on the backplane. Refer to the table below for the pin defi nitions of the Ultra 320 SCSI connector located at (LVD1).
A-5 Ultra320 SCSI Drive Connector Pin Defi nitions (J28) Pin# Defi nition Pin # Defi nition 1 +DB (12) 35 -DB (12) 2 +DB (13) 36 -DB (13) 3 +DB (14) 37 -DB (14) 4 +DB (15) 38 -DB (15) 5 +DB (P1) 39 -DB (P1) 6 +DB (0) 40 -DB (0) 7 +DB (1) 41 -DB (1) 8 +DB (2) 42 -DB (2) 9 +DB (3) 43 -DB (3) 10 +DB (4) 44 -DB (4) 11 +DB (5) 45 -DB (5) 12 +DB (6) 46 -DB (6) 13 +DB (7) 47 -DB (7) 14 +DB (P) 48 -DB (P) 15 Ground 49 Ground 16 DIFFSENS 50 Ground 17 TERMPWR 51 TERMPWR 18 TERMPWR 52 TERMPWR 19 Reserved 53 Reserved 20 Ground 54 Ground 21 +ATN 55 -ATN 22 Ground 56 Ground 23 +BSY 57 -BSY 24 +ACK 58 -ACK 25 +RST 59 -RST 26 +MSG 60 -MSG 27 +SEL 61 -SEL 28 +C/D 62 -C/D 29 +REQ 63 -REQ 30 +I/O 64 -I/O 31 +DB (8) 65 -DB (8) 32 +DB (9) 66 -DB (9) 33 +DB (10) 67 -DB (10) 34 +DB (11) 68 -DB (11)