Jumper Positions; Figure 44. Jumperpositions For Normal Use - IBM DTLA-305040 - Deskstar 41.1 GB Hard Drive Specifications

7.3.2 Jumper positions

7.3.2.1 16 logical head default (normal use)
The figure below shows the jumper positions used to select Device 0, Device 1, Cable Selection, or
Device 0 Forcing Device 1 Present.
I
G
H
I G
H
I
G
H
I
G
H

Figure 44. Jumperpositions for normal use

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-B or C-D position does not affect any
selection of Device or Cable Selection mode.
3. Shipping default positions of the jumpers are at A-B and G-H which is the condition of Device 0.
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 SHIPPING DEFAULT
A
DEVICE 1
B
A
CABLE SEL
B
A DEVICE 0 FORCING
DEVICE 1 PRESENT
B
42
(Master)
(Slave)