IBM 9114-275 - IntelliStation POWER 275, Installation Manual, Page: 26 / 102

The current usage for the serial port connectors is as follows:
Serial Port Number Location Examples of Applicable Usage
Serial Port 1 (S1
Rear) Rear of the System Service Processor menus, Service Agent, PDA system management
applications (interface cable required), ASCII Terminal for AIX
Console, and Modems
Serial Port 2 (S2) Rear of the System Service Processor menus, HACMP, ASCII Terminal for AIX Console,
and Modems
Serial Port 3 (S3) Rear of the System HACMP, UPS (uninterruptible power supply), ASCII Terminal for AIX
Console, and Modems
Note: Serial port S1 is never used to run HACMP or to attach a UPS. If you are configuring your system
to run HACMP with a UPS attached, you must connect the HACMP cable to serial port S2 and the
UPS cable to serial port S3.
Do not run a UPS connected to serial port S2. If you decide to
disconnect HACMP, you must reset the service processor using the pinhole reset switch before
running another application. The service processor pinhole reset switch is located on the operator
panel.
Step 13. Connect the Adapter Cables
Note: Before doing this step, read and understand “Step 3. Read the Safety Notices” on page 3.
If you are using any optional adapters (such as token ring or 8-port EIA-232), connect the cables to the
appropriate adapter connectors in the PCI slots of your machine. For the locations of installed adapters,
consult the
″
About Your Machine
″
document.
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IntelliStation POWER 9114 Model 275 Installation Guide