Seagate ST36530N/W/WC W/LW drives, Medalist Pro Installation Guide, Rev. B, default, Usage Plug

Medalist Pro Installation Guide, Rev. B

47

W/LW drives

68 Pin SCSI I/O

+5V

J1-Auxiliary

Drive

Connector

Pin 1

Ground

Pin 1A

J1-DC Power

HDA

Rear

4P

3P2P

1P

J1

(default)

SCSI ID = 0

PCB

SCSI ID = 1

SCSI ID = 2

SCSI ID = 3

SCSI ID = 4

SCSI ID = 5

SCSI ID = 6

For ID selection use

SCSI ID = 7

jumpers as shown or

SCSI ID = 8

connect a cable for

remote switching as

SCSI ID = 9

shown below.

SCSI ID = 10

SCSI ID = 11

SCSI ID = 12

SCSI ID = 13

SCSI ID = 14

SCSI ID = 15

Pins 1, 3, 5, and 7 are

not used

A3 A2 A1A0

optional connections to

Host Alternate

switching circuits in host

equipment to establish

Usage Plug

11 9 7

5

3

1

drive ID.

+5V

A0 A1 A2

A3

Remote Switches

12 10 8

6

4

2

Pins 2, 4, 6, and 8 are normally

+5V

N.C.

not grounded. They are driven low

Ground

(ground) for 250 ms after a Reset or

Drive Activity LED

PWR ON to allow drive to read

SCSI ID selected. Pin 8 may

Dashed area is optional host circuitry (external to the

also be used to drive the cathode

drive) connected to host supplied optional usage plug. of an external Activity LED.

Figure 12. Using J1-Auxillary connector for model W/LW drives alternate ID select and LED connection