SCSI backplane jumper settings and HDD ID assignments

The 6-pin jumper J1 on each of the SCSI backplanes allows you to define your desired SCSI configuration.

The picture below shows the location of jumper J1 with pins 1-3 and 2-4 shorted.

Refer to the following tables for the jumper settings and the appropriate ID# for each SCSI HDD bay.

Cascade configuration

First backplane (BPB1)

J1 setting (1-3 shorted, 2-4 shorted)

Device

SCSI ID#

 

 

 

Drive Bay 1

ID0

 

 

 

Drive Bay 2

ID1

 

 

 

Drive Bay 3

ID2

 

 

 

Drive Bay 4

ID3

 

 

 

GEM SAF-TE

ID15

Second backplane (BPB2)

J1 setting (3-5 shorted, 4-6 shorted)

Device

SCSI ID#

 

 

Drive Bay 5

ID4

 

 

Drive Bay 6

ID5

 

 

Drive Bay 7

ID6

 

 

Drive Bay 8

ID8

 

 

GEM SAF-TE

ID11

2-34

Chapter 2: Hardware setup