Seagate STU62001LW-S Installation Manual page 19

Viper 200 Installation Manual
Figure 8. Assigned loop identifier jumper pins for the
internal FC Viper 200
You can select the hard ID used by the drive by placing
jumpers on the appropriate assigned loop identifier jumper
pins. The seven sets of jumpers represent seven binary
digits, with the lowest binary weight (2^0) on the left (pins 13-
14) and the highest binary weight (2^6) on the right (pins 1-
2). If a jumper is placed on a set of pins (ON), the bit is set as
a "1." If no jumper is on a set of pins, the bit is set as "0."
The assigned loop identifier can be set from 0 to 125 (7Eh).
The Viper 200 FC is shipped with no jumpers in place (an ID
of 0000000).
The table below illustrates the system used for ID selection.
"ON" indicates a jumper installed on the pins indicated. Blank
cells indicate pins without a jumper installed.
Loop ID 13-14
0
1
2
3
4
5
6
....
125
Note: Setting an invalid ID (7Fh or 7Eh) will cause the drive
B A
Jumper Pins (blank indicates no jumper)
11-12
ON
ON
ON ON
ON
ON
ON ON
not to participate in LIHA and to instead attempt to
acquire an address during the LISA (soft address)
phase of LIP.
Assigned loop identifier
jumper pins
13 11 9 7
14 12 10 8
9-10 7-8
ON
ON
ON
ON ON
5 3 1
Pin
Numbers
6 4 2
5-6 3-4
ON
17
1-2
ON