IBM B50 - Manual (Page 149)

AIX Location Codes
The basic formats of the AIX location codes are:
For non-SCSI devices/drives:
AB-CD-EF-GH
For SCSI devices/drives:
AB-CD-EF-G,H
non-SCSI devices/drives
The location code for for planars, cards, and non-SCSI devices is defined as:
Name AIX
Location
Code Location
Code Physical
Connection Logical
Identification
Parallel Port 01-R1 P1/R1 J49 Base Address
0x0378
Ethernet Port 10-60 P1/E1 J45 Host Bridge ID00,
Device 12
SCSI Port 10-80 P1/Z1 J33/J38 Host Bridge ID00,
Device 16
Tablet Port 01-Q1 P1/Q1
Card in PCI Slot 2 10-90 P1.1-I2 J3 on Riser
Card (Top
Connector) PCI Bridge ID01,
Device 18
Card in PCI Slot 1 10-b0 P1.1-I1 J2 on Riser
Card
(Bottom
Connector) Host Bridge ID00,
Device 22
CD-ROM P1-Z1-A3 Primary SCSI Bus
ID 3
Upper DASD P1-Z1-A2 Primary SCSI Bus
ID 2
Lower DASD P1-Z1-A4 Primary SCSI Bus
ID 4
Fan # 1 F1 J27/J30
Operator Panel L1 J41
Power Supply V1 J7/J8/J2/J9
Chapter 6. Location Codes 6-3