Intergraph StudioZ GT RAX System Reference Manual page 48

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Remember the following when installing an optional SCSI peripheral device:
The maximum speed of a SCSI bus is limited to the speed of the slowest device on that bus.
Have the vendor's documentation available to follow instructions for setting the SCSI ID,
enabling or disabling termination, installing device drivers when required, and configuring
other drive attributes.
If you are installing a internal peripheral device that connects to an expansion card, see the
vendor's documentation for installing the expansion card and required cables. See "Adding
Expansion Cards" for details.
The length of the Wide Ultra2 SCSI cable is 30 inches (0.76 meters). The length of the
Narrow Ultra SCSI cable is 56 inches (1.4 meters).
See the following chapters for related information and important details:
Chapter 6, "System Hardware," for details on power supply cable connectors and pinouts.
Chapter 7, "Peripherals," for details on common internal devices and internal device cables.
To install a peripheral device in the available peripheral device bay:
1. Open the face panel as described in Chapter 1, "Accessing the Components."
2. Loosen the thumbscrew on the locking plate near the top left corner of the peripheral device
bay.
3. Lift the locking plate.
4. From inside the chassis, push the front of the tray and slide it out of the bay.
5. Set the SCSI ID on the new device to an unused ID number.
6. Disable termination on the new device.
Locking Plate
Thumbscrew