HP Tc2110 hp server tc2110 operation and maintenance guide (online version 1.1 - Page 18

-Pin Narrow SCSI Port Connector – Accessory Boa, Position 25

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Chapter 2 External Connectors Pin Number 34 Signal Description +DB(11) Pin Number 68 Signal Description -DB(11) 50-Pin Narrow SCSI Port Connector - Accessory Board Position 25 Position 1 Position 50 SCSI Port Connector 50-Pin Narrow SCSI Port Connector Pinouts Pin Number Signal Description Pin Number 1-11 Ground 37 12 Reserved 38 13 Open 39 14 Reserved 40 15-25 Ground 41 26 -DB(0) 42 27 -DB(1) 43 28 -DB(2) 44 29 -DB(3) 45 30 -DB(4) 46 31 -DB(5) 47 32 -DB(6) 48 33 -DB(7) 49 34 -DB(P) 50 35-36 Ground Position 26 Signal Description Reserved Termpwr Reserved Ground -ATN Ground -BSY -ACK -RST -MSG -SEL -C/D -REQ -I/O 12

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Chapter 2
External Connectors
Pin Number
Signal
Description
Pin
Number
Signal
Description
34
+DB(11)
68
-DB(11)
50-Pin Narrow SCSI Port Connector – Accessory Board
Position 25
Position 1
Position 26
Position 50
SCSI Port Connector
50-Pin Narrow SCSI Port Connector Pinouts
Pin Number
Signal Description
Pin Number
Signal Description
1-11
Ground
37
Reserved
12
Reserved
38
Termpwr
13
Open
39
Reserved
14
Reserved
40
Ground
15-25
Ground
41
-ATN
26
-DB(0)
42
Ground
27
-DB(1)
43
-BSY
28
-DB(2)
44
-ACK
29
-DB(3)
45
-RST
30
-DB(4)
46
-MSG
31
-DB(5)
47
-SEL
32
-DB(6)
48
-C/D
33
-DB(7)
49
-REQ
34
-DB(P)
50
-I/O
35-36
Ground
12