Figure 45. Jumper Positions For 15 Logical Head Default - IBM DTLA-305040 - Deskstar 41.1 GB Hard Drive Specifications

7.3.2.2 15 logical head default
The positions of jumper blocks shown below is used to select Device 0, Device 1, Cable Selection, or
Device 0 Forcing Device 1 Present, setting 15 logical heads instead of default 16 logical head models.
I
G
H
I G
H
I
G
H
I G
H

Figure 45. Jumper positions for 15 logical head default

Notes:
1. To enable the CSEL mode (Cable Selection mode) the jumper block must be installed at E-F. In the
CSEL mode, the drive address is determined by AT interface signal #28 CSEL as follows:
Ÿ When CSEL is grounded or at a low level, the drive address is 0 (Device0).
Ÿ When CSEL is open or at a high level, the drive address is 1 (Device1).
2. In CSEL mode, installing or removing the jumper blocks at A-C or B-D position does not affect any
selection of Device or Cable Selection mode.
E C
F D
E C
F D
E C
F D
E C
F D
Deskstar 40GV & 75GXP hard disk drive specifications
A
DEVICE 0
B
A
DEVICE 1
B
A
CABLE SEL
B
DEVICE 0 FORCING
A
DEVICE 1 PRESENT
B
43
(Master)
(Slave)