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Installation
Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT
3-5
The configuration of the following Three jumpers controls the drive’s five modes
of operation:
• CS – Cable Select
• DS – Drive Select
• PK– Jumper Parking Position (Slave mode)
• AC– Alternate Capacity
The AT PCB has two jumper locations provided to configure the drive in a system.
The default configuration for the drive as shipped from the factory is with a
jumper across the DS location, and open positions in the CS, PK and AC
positions.
Table 3-1 defines the operation of the master/slave jumpers and their function
relative to pin 28 on the interface.
1
indicates that the specified jumper is installed;
0
indicates that the jumper is not installed.
Table 3-1
Table 3-1
Table 3-1
Table 3-1
AT Jumper Options
Note: In Table 3-1, a
0
indicates that the jumper is removed, a
1
indi-
cates that the jumper is installed, and an X indicates that the
jumper setting does not matter.
3.3.1
3.3.1
3.3.1
3.3.1
Cable Select (CS) Jumper
Cable Select (CS) Jumper
Cable Select (CS) Jumper
Cable Select (CS) Jumper
When a Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT hard disk
drive and another ATA hard disk drive are daisy-chained together, they can be
configured as Master or Slave either by the CS or DS jumpers. To configure the
drive as a Master or Slave with the CS feature, the CS jumper is installed (1). The
drive's position on the 80 conductor Ultra ATA data cable then determines
whether the drive is a Master (Device 0) or a Slave (Device 1). If the drive is
connected to the end of the Ultra (cable Select) data cable the drive is a Master.
If the drive is connected to the middle connection it is set as a Slave.
Once you install the CS jumper, the drive is configured as a Master or Slave by the
state of the Cable Select signal: pin 28 of the ATA bus connector. Please note that
pin 28 is a vendor-specific pin that Quantum is using for a specific purpose. More
than one function is allocated to CS, according to the ATA CAM specification
(see reference to this specification in Chapter 1). If pin 28 is a
0
(grounded), the
CS
CS
CS
CS
DS
DS
DS
DS
PK
PK
PK
PK
PIN 28
PIN 28
PIN 28
PIN 28
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
0
0
X
X
Drive is configured as a slave
1
0
X
Gnd
Drive is configured as Master (Device 0) when attached
to the end of a 80 conductor Ultra ATA cable
0
1
X
X
Drive is configured as a Master
1
0
X
Open
Drive is configured as a Slave (Device 1) when attached
to the middle of a 80 conductor Ultra ATA cable
1
1
X
X
Drive is configured as a Master with an attached slave
that does not support DASP
Summary of Contents for FIREBALL PLUS AS 10.2
Page 12: ...About This Manual 1 4 Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT ...
Page 16: ...General Description 2 8 Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT ...
Page 61: ...Basic Principles of Operation Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT 5 16 ...
Page 62: ...Basic Principles of Operation 5 17 Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT ...
Page 162: ...Index I 4 Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT ...