Installation manual

SCSI Host Adapter Assemblies
Use the slot assignment charts for systems with the 501-1138 or 501-1217 SCSI Assembly if
there is no SCSI Host Adapter installed in a Sun-3/180, Sun-3/280, or Sun-4/280.
1.
Sun 3x2 Adapter, 501-1269, Option 160A, is connected to J2 Rows A and C. There is no
external connector.
2.
Sun 3x2 Adapter, 501-1191, Option 160B, is not connected to J2 Rows A and C. There is no
external connector.
3.
Sun 3x2 Adapter, 501-1220, has no connection to J2 Rows A and C and has an external 50-pin
connector.
4.
Sun 3x2 Adapter, 501-1666, is connected to J2 Rows A and C and has an external 50-pin
connector. This adapter connects the Sun 4300 CPU to the internal SCSI subsystem of the
Sun-4/360.
5.
Sun-2 SCSI Host Adapter, 501-1167, has P2 bus connections and an external cable assembly.
Do not substitute a 501-1236 Sun-3 SCSI for a 501-1045 Sun-2 SCSI in this adapter assembly.
6.
Sun-3 SCSI Host Adapter, 501-1217, does not function with the SCSI subsystem in the
Sun-3/160, Sun-3/260, or Sun-4/260. The SCSI subsystem interfaces through J2, Rows A and
B, of the VMEbus connector. These signals are not connected on the 501-1217 assembly.
7.
Sun VME 3x2 SCSI Host Adapter Assemblies
ASSY #
w SCSI
INCLUDES
SCSI #
INCLUDES
BLANK ASSY #
P2 ROWS
A + C
SCSI
CONNECTION
501-1138 501-1045 500-1220 No External
501-1149 501-1045 500-1269 Yes Internal
501-1167 501-1045 500-1059 Yes External
501-1170 501-1236 500-1269 Yes Internal
501-1217 501-1236 500-1220 No External
Sun 3x2 Adapter Assemblies
OPTION #
TESTED
ASSY #
ADAPTER
FAB #
P2 ROWS
A + C
EXTERNAL
CONNECTION
160A 501-1269 270-1059 Yes No
160B 501-1191 270-1138 No No
None 501-1220 270-1138 No Yes
None 501-1666 270-1059 Yes Yes
Sun4/I: Slot Assignment - SCSI Host Adapter Assemblies
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