Thunder 2500 S1867
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NOTE:
Internal Ultra2/3 SCSI peripherals come from the factory without
termination. Proper termination is provided by the built-in terminator at the
end of the Ultra2/3 internal SCSI cable.
Connecting Internal Cables for Non-Ultra2 SCSI Devices
Internal cables for single-ended SCSI devices do not have special twists or terminators built
into the cable ends. If you are connecting non-Ultra2/3 SCSI devices, use a channel
separate from the Ultra2/3 SCSI devices you just connected. The motherboard has a
special 50-pin narrow connector to more easily support narrow Ultra and earlier devices if
you so choose.
If you are connecting Wide SCSI peripherals you will need a 68-pin cable. If you are
connecting narrow SCSI peripherals you will need a 50-pin cable. When connecting the
50-pin cable to peripherals ensure that the colored edge of the cable connects to pin 1 of
both the device and the motherboard SCSI connector.
STEP 1:
Locate a 68-pin or 50-pin internal Ultra SCSI cable.
STEP 2:
Plug the long end of the cable to the 68-pin motherboard connec-
tor if the cable is 68-pin or plug the long end of the cable to the 50-pin
motherboard connector if the cable is 50-pin.
STEP 3:
Plug the other end of the cable to a terminated Fast/Wide Ultra
SCSI peripheral (if 68-pin) or a terminated Fast/Ultra Narrow SCSI peripheral
(if 50-pin).
STEP 4:
To connect a second peripheral, plug the middle connector of the
cable to the peripheral. The peripheral must not be terminated.
!
important!
Connect to Fast/Wide Ultra
Peripheral (Terminated)
Connect to Fast/Wide Ultra
Peripheral (Not Terminated)
Connect to Motherboard
68-pin connector
Connect to Fast/Ultra Narrow
Peripheral (Terminated)
Connect to Fast/Ultra Narrow
Peripheral (Not Terminated)
SCSI