3.5-Inch Hard Disk Drive (A2958A) Configuration - HP 3000 Series Handbook

For HP Internal Use Only
Table 4-16. Address/Option Connector Configurations (continued)
Pm-set
Ftmct1on
Upper Lower
Configuration
Pin
1
Pin
1
10 Gnd Unit
0
=
Open,
s
=
Shorted
Select 1
SCSI Address 0:
10
=
0, 11
=
0, 12
=
0
11 Gnd Unit
SCSI Address 1: 10
=
0, 11
=
0,
12
=
s
Select 2
SCSI Address 2:
10
=
0, 11
= s.
12
=
0
12 Gnd Unit
SCSI Address
3: 10
=
0, 11
=
s.
12
=
s
Select 3
SCSI Address 4:
10
=
s.
11
=
0, 12
=
0
SCSI Address
5: 10
=
s.
11
=
0, 12
=
s
SCSI Address
6: 10
=
s.
11
=
s.
12
=
0
SCSI Address 7:
10
=
s.
11
=
s.
12
=
s
SCSI-1/SCSI-2 Open: Default
=
SCSI-2.
Shorted: Drive is forced to respond as a SCSI-1 device.
Power-Fail Reset Enable Shorted: Reset enabled. Used in multiuser systems to provide fault
tolerance. A Reset signal from the power supply is routed to pin-set
1 (see pin-set 1 description) to warn of impending power loss; the
drive finishes writing the current sector then resets.
Open: Reset disabled (also reverts pin-set 1 to Write Protect
function).
3.5-inch Hard Disk Drive (A2958A) Configuration
Caution
I
• The drive configuration is set for the system it is installed in. Changing the
configuration may cause the drive to malfunction.
• Devices outside the system will be configured differently.
• The connector jumpers are not interchangeable from one connector to
another. Interchanging the jumpers may damage the connectors.
The drive options are selected on J2. The drive SCSI ID (address) is set on J5 (see
Figure 4-11). Table 4-17 shows how the option pin-sets for the 3.5-inch hard disk drive
(A2958A) should be set. Table 4-18 provides a functional description of the J2 jumpers.
A pin-set is shorted with a jumper installed or open without a jumper. The J5 option settings
are shown on Figure 4-11.
4-34 Configuration