Acer AcceleRAID 170 User Manual

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Installation Process
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AcceleRAID 170 Installation Guide
1. Termination - Only Internal or Only External Devices 
Check that the drive channel is properly terminated according to 
drawings below, or skip to Step 2 if using both internal and external 
devices.
The AcceleRAID 170 is equipped with automatic SCSI termination 
circuitry which handles automatic enabling and disabling of on-board 
termination. For example, if the controller is at the end of the SCSI bus, 
it automatically enables on-board termination.
If all the SCSI devices on a channel are connected either to the 
internal connector or
 to the external connector, the end of the SCSI 
bus farthest from the controller must have a terminator installed; the 
controller automatically enables on-board termination.
See Figure 2-9 for an example of an internal drive configuration. 
See Figure 2-10 for an example of an external drive configuration.
Figure 2-9. Termination with Internal Drive Configuration
Figure 2-10. Termination with External Drive Configuration