Technical data

www.asti-usa.com ASTi DACS: Operation & Maintenance Manual (Version 4, Rev. B.1)

Remove and Replace

Should it become necessary to remove and replace one of the DACS modules, use the following

procedures.

** CAUTION **

Replacing hardware in any system can void any hardware warranty. If your system is under a hard-

ware warranty, please contact ASTi before proceeding with any repairs.

** WARNING **

Potentially fatal voltages exist in the DACS. Before entering and removing any component from the

DACS, be sure to turn off all power to the DACS and disconnect the electrical power cord.

** CAUTION **

All DACS components are ESD sensitive. When removing, handling, replacing, or storing DACS

components, proper ESD procedures must be observed. Failure to take effective ESD precautions

can result in damage to equipment. Always make sure you are properly grounded when handling

DACS modules. Modules should be fully enclosed in anti-static bags when transported and stored.

2U Chassis: Model Processor

For the 2U Chassis, spare Model Processors include the chassis, disk drives, CPU, power supply,

and everything else that is not plugged into the ISA bus. Because of this, the removal and replace-

ment must be done at the same time, and consists of removing all cards except the CPU from the

Model Processor chassis and installing them in the spare Model Processor.

Spare Model Processors are shipped with the hard disk partitioned and formatted. The Model

Builder application software, DOS operating system and other 3rd party software are not installed

on the spare module. If the user wishes to conﬁgure the spare module as a hot spare, there is no

restriction on installing the Model Builder Application Software on the model processor. Installa-

tion of the DOS operating system and other 3rd party software is subject to the 3rd party vendor

software license agreement.

EQUIPMENT REQUIRED:

• Phillips #1 Screwdriver

• Original Software Disks for all Software Supplied

REMOVAL AND REPLACEMENT:

• If possible, back up the Model Processor hard disk.

• Perform Power Down Sequence described in Chapter 4, DACS Operation.

• Before proceeding, take care that ESD precautions are observed by ensuring that both you

and the equipment are properly grounded.

• Disconnect all cables from the system.

• Remove the top of the chassis from the spare system. This will require the removal of the

screws holding it on, which will be located on the front, back, top, and/or sides of the chas-

sis.