IBM R/S6000 7012 300 Series Operator's Manual page 23

The rear of your system unit will resemble one of the following figures.
Models 320 and 32H
Plate (not on all
system units)
Models 340, 34H, 350, 355, 360/36T, 365, 370/37T, 375
Serial 1
Models 380, 390, 39H, and 397
Serial 1
1-8
Operator Guide
Power Ethernet
Connector
Parallel Port
Ethernet
Power Connector
Serial 2
SCSI Port
Ethernet
Power
Connector
S 1 S2
Serial 2
SCSI
Port
Adapter Positions
Serial 1
Tablet
Serial 2
Adapter Positions
Parallel Port Tablet
Adapter Positions
P
Parallel Tablet
Port
Mouse
Keyboard
Mouse
Keyboard
Mouse
Keyboard