Avago Technologies AcceleRAID 170LP - Manual (Page 35)

Installation
Manual No. DB11-000024-00 2-15
Termination – Only Internal or Only External Devices
Check that the drive channel is properly terminated according to drawings
below. Termination is indicated with a T enclosed in a square.
The AcceleRAID 170LP is equipped with automatic SCSI termination
circuitry which handles automatic enabling and disabling of on-board
termination. For example, if the controller board is at the end of the SCSI
bus, it automatically enables on-board termination.
The end of the SCSI bus farthest from the controller board must have a
terminator installed; the controller board automatically enables on-board
termination. See Figure 2-13 for an example of an internal drive
configuration. See Figure 2-14 for an example of an external drive
configuration.
Figure 2-13. Termination with Internal Drive Configuration
Figure 2-14. Termination with External Drive Configuration