47
3 Interface Boards and Mass-Storage Drives
Connectors and Sockets
8-Bit SCSI Connector External 8-Bit SCSI Connector
Pin Signal Pin Signal Pin Signal Pin Signal
1 not connected 2 SCD0 1 not connected 2 SCD0
3 not connected 4 SCD1 3 not connected 4 SCD1
5 not connected 6 SCD2 5 not connected 6 SCD2
7 not connected 8 SCD3 7 not connected 8 SCD3
9 not connected 10 SCD4 9 not connected 10 SCD4
11 not connected 12 SCD5 11 not connected 12 SCD5
13 not connected 14 SCD6 13 not connected 14 SCD6
15 not connected 16 SCD7 15 not connected 16 SCD7
17 not connected 18 SCDP 17 not connected 18 SCDP
19 not connected 20 not connected 19 not connected 20 not connected
21 not connected 22 not connected 21 not connected 22 EXTDEV
23 RESERVED1 24 RESERVED3 23 RESERVED1 24 RESERVED3
25 not connected 26 TERMPWR 25 not connected 26 TERMPWR
27 RESERVED2 28 RESERVED4 27 RESERVED2 28 RESERVED4
29 not connected 30 not connected 29 not connected 30 not connected
31 not connected 32 ATN 31 not connected 32 ATN
33 not connected 34 not connected 33 not connected 34 not connected
35 not connected 36 BSY 35 not connected 36 BSY
37 not connected 38 ACK 37 not connected 38 ACK
39 not connected 40 RST 39 not connected 40 RST
41 not connected 42 MSG 41 not connected 42 MSG
43 not connected 44 SEL 43 not connected 44 SEL
45 not connected 46 C_D 45 not connected 46 C_D
47 not connected 48 REQ 47 not connected 48 REQ
49 not connected 50 I_O 49 not connected 50 I_O
51 CGROUND1 52 CGROUND2
Power Supply Connector for System Board
Pin Signal Pin Signal
1 PwrGood 2 V_STBY
3 +5 Volt supply 4 +5 Volt supply
5 +5 Volt supply 6 +5 Volt supply
7 +5 Volt supply 8 +3 Volt supply
9 +3 Volt supply 10 +3 Volt supply
11 +3 Volt supply 12 +3 Volt supply
13 Remote On 14 -5 Volt supply
15 -12 Volt supply 16 +12 Volt supply
17 Ground 18 Ground
19 Ground 20 Ground
21 Ground 22 Ground
23 Ground 24 Low Power
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