Instruction manual

Page 2 Installation Instructions: AM-212-20 3-1/2" Floppy Diskette Drive
PDI-00212-20, Rev. A01
PREPARING THE AM-212-20 FOR INSTALLATION
Before installing the AM-212-20, you should make sure its configuration jumpers are set correctly.
These jumpers are found on the rear of the diskette drive, as shown in Figure 1. Specifically, you need to
set the jumpers determining the SCSI ID for the drive, and insure that the SCSI bus terminators are
removed unless the AM-212-20 is the last physical SCSI device connected to the SCSI bus and you are
not using the external SCSI terminator to terminate this SCSI bus.
DC POWER
CONNECTOR
50 PIN SCSI BUS CONNECTOR, PIN1
4
1
SCSI ID 5
2
SCSI ID 5 (SEE DETAIL)
DETAIL
TOP VIEW
SCSI FLOPPY DRIVE
SCSI BUS TERMINATORS (2) REMOVED, PIN 1 INDICATED
Note: All other jumper blocks are factory
set and should NOT be moved.
shorting block out = 1
shorting block in = 0
Figure 1 - AM-212-20 SCSI Floppy Drive Jumper Configuration
The next few sections discuss SCSI IDs and SCSI bus termination.
Setting the SCSI ID
Each SCSI device attached to the SCSI bus must be set to a unique address. Two SCSI devices cannot
share the same address. The AM-212-20 is a SCSI-1 device, and can be set to any SCSI ID from 0
through 6. Figure 1 shows the standard jumper settings for SCSI ID = 5, which is the standard SCSI
address for the AM-212-20.
If you are using this device with a wide SCSI bus adapter attached to a wide SCSI bus, only SCSI
IDs 0-6 are supported for this device.