First Virtual Communications Voyager 3000 - Manual (Page 30)

Voyager 3000 User Guide
2-10
SCA attachment
To connect an SCA device to a device carrier simply insert the SCA device and connect it via
the 4 screw holes provided on the underside of the device carrier. There are also device
carriers for other devices. Table 2-3 shows the carrier part numbers.
Table 2-3 Device carrier Device Part Numbers
Description
Part Number
Device carrier Standard 3.5” non SCA wide drive VOY-W-AA
Device carrier Standard 3.5” non SCA narrow drive VOY-N-AA
Device carrier Standard 3.5” SCA drive VOY-SCA-AA
Device carrier for Barracuda 4 drive VOY-SCB-AA
Power Option Board
The Power Option Board provides RS-232 communication between the controller and a
terminal. It also has a four way DIP switch The relevant switch settings are shown in
Table 2-4.
Table 2-4 Power Option Board Switch Definitions
SW1-4
SW1-2 SW1-3 SW1-1
Sync Link
(default is off) Termination Power enable
(default is on) Delay Enable
(default is on)
SW1-4 is used to configure the spindle synchronisation line across both SCSI buses. The
default setting is off. SW1-2 and SW1-3 are used to provide Termination Power
and will
normally be set to on. SW1-1 is used to delay the spin up cycle and is normally set to on. The
power sequence delay will cause the second group of drives (the bottom 3 drives in each shelf)
to spin up after the first group of drives in the case of a single power supply. In the case of
dual power supply configurations no delay will take place regardless of this setting.
Controller
To remove the controller shut down the system and remove the device immediately under the
controller. This will grant access to the controller removal level attached to the underside of
the controller. Grasp the handle and depress the release button on the right hand side of the
carrier and pull with a steady slow action towards you. This will allow the controller to be
withdrawn in a controlled manner.
The controller may be removed from the carrier by turning the carrier upside down and
removing the eight countersunk screws. This will withdraw the controller complete with the
backplane interface board.
8
Note that the EMU in conjunction with SAFTE or a RAID controller must be installed to convey this fault
information