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9
10
7
8
5
6
3
4
1
2
One drive only
Drive is master;
slave is present
Drive is slave when
another drive is present;
Cable select
Remote LED
connection
pin 13 (–), pin 14 (+)
Spares
12
11
Master/slave timing protocol.
Makes the drive compat-
ible with some drives as
the slave.
14
13
Dual-drive emulation
Cannot be used with
cable select.
Cannot be used with a
second, physical drive.
Circuit board
side up
Options jumper block (J8)
Figure 2. Options jumper block settings
Medalist 1270 Installation Guide, July 1995 7