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Make sure that both ends of the SCSI cable are terminated and that all devices in between
the ends are non-terminated. If the VIPer807 board is located at the end of the SCSI cable,
it should be terminated. By default, the SCSI connector on the VIPer807 board is
terminated, as shown above with the W2 jumper settings.
3 - Connect SCSI Cables (Power Off)
The VIPer807 has a high density 50-pin connector. To connect to the SCSI cable, use the
SCSI Adaptor 50 HDD to 50 HD Assembly.
Attach one end of the SCSI cable to the 50 HD connector, then the 50 HDD connector to
the board's J7 connector. Make sure line 1 of the cable is matched with pin 1 of connector
J7. Attach the other end to your SCSI device, making sure line 1 is matched with pin 1 on
your device.
TABLE 6-3: SCSI Connector (J7) - Pinout
Pin Number
Signal
1
GND
3
GND
5
GND
7
GND
9
GND
11
GND
13
GND
15
GND
17
GND
19
GND
21
GND
23
GND
25
Open
27
GND
29
GND
31
GND
33
GND
35
GND
37
GND
39
GND
41
GND
43
GND
45
GND
47
GND
49
GND
* Active low signal
Pin Number
Signal
2
SCSI D0
4
SCSI D1
6
SCSI D2
8
SCSI D3
10
SCSI D4
12
SCSI D5
14
SCSI D6
16
SCSI D7
18
SCSI DP*
20
GND
22
GND
24
GND
26
Term Power
28
GND
30
GND
32
ATN*
34
GND
36
BSY*
38
ACK*
40
RESET*
42
MSG*
44
SEL*
46
C/D*
48
REQ*
50
I/O*
Installing IDE, Floppy & SCSI Devices
6-11
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