Specifications
Page 4 Installation Instructions: AM-137 Board AM-1600/1400 Upgrade
4.0AM-137 SCSI TAPE AND HARD DISK DRIVE REQUIREMENTS
The AM-137 board has an on-board high-performance SCSI interface that’s compatible
with your AM-1600/1400 SCSI peripherals. The AM-137 board’s SCSI interface
supports both SCSI-1 and SCSI-2 peripherals. With the AM-137 board installed, all of
your SCSI peripherals will yield better performance, with SCSI-2 devices showing the
greatest performance increase.
To understand how to get the best performance from your SCSI peripherals, you should
carefully read the next few sections dealing with SCSI peripherals and AM-137
compatibility.
4.1Tandberg 1/4" Streaming Tape Drives
In order to warm boot from a Tandberg tape drive, it must be set to a higher numerical
SCSI ID (1 through 6) than any other tape device connected to the SCSI bus.
1.In order to be AM-137 compatible, the AM-625 Tandberg 150MB tape
drive must have firmware at revision -06:00 or later. You can use the
SCSI.LIT program (included in AMOS 2.2C and 1.4C operating system
releases) to determine the firmware revision of your tape drive. Simply
enter the SCSI command at the AMOS prompt and the program will
display a string of numbers which includes the firmware revision. The
AM-625 is a SCSI-1 device; it cannot be upgraded to SCSI-2. AM-625
backups are not able to span tapes.
2.AM-626 525MB Tandberg SCSI tape drives can be upgraded to SCSI-2 by
installing updated firmware (part number PDB-00626-90). If you did not
include updated AM-626 firmware with your order, you can order the
PROM separately from Alpha Micro. If the firmware is not upgraded, the
drive can still be used with the AM-137 hardware as a SCSI-1 device, but
only if it has firmware at revision -04:08 or later. You can use the
SCSI.LIT program (included in AMOS 2.2C and 1.4C operating system
releases) to determine the firmware revision of your tape drive. Simply
enter the SCSI command at the AMOS prompt and the program will
display a string of numbers which includes the firmware revision.
To install new firmware, you simply remove the two TORX screws holding
the drive’s top cover in place; lift off the top cover; gently pry out the old
PROM; and install the new PROM. The illustration below shows the
location of the AM-626’s PROM:
PDI-00137-50, Rev. A01