POWER7 information

Uninterruptible power supply

Uninterruptible power supplies are available to meet the power protection needs of IBM® servers. The uninterruptible power supply is the IBM type 9910.

The IBM 9910 uninterruptible power supply solutions are compatible with the power requirements for Power Systems™ servers and have passed IBM testing procedures. The uninterruptible power supplies are intended to provide a single source for purchase and protection of IBM servers. All 9910 uninterruptible power supplies include a premium warranty package that is designed to enhance the potential for return on investment over the uninterruptible power supplies available on the market today.

Type 9910 uninterruptible power supply solutions are available from Eaton.

Feature code 1827 service processor communications port to uninterruptible power supply cable

The 1827 is a 140 mm (5.5 in.) service processor communications port to uninterruptible power supply cable for Power Systems models. Uninterruptible power supply communications are supported through a designated service processor communications port through the 1827 cable.

Both ends of the cable have a female 9-pin D-shell connector. The following figure shows the serial to uninterruptible power supply converter cable end (designated B) that plugs into the service processor communications port. It has external threads that mate with the cable retention on the service processor communications port. The other end of the cable (designated A) plugs into the uninterruptible power supply vendor-supplied cable for System i® communications. It has threads that mate with the cable's external threads on the uninterruptible power supply.

Figure 1. Uninterruptible power supply connector for the uninterruptible power supply communications cable
Uninterruptible power supply connector for the uninterruptible power supply communications cable

The service processor communications port supports two modes: RS-232 service processor communications port mode and uninterruptible power supply mode. Only one mode is supported at a time. The service processor will detect the presence of an uninterruptible power supply when the 1827 cable is attached and the server is started. The service processor will set the control hardware to condition the signals for the uninterruptible power supply. The mode cannot be changed unless the system is started again. The following figure shows the converter cable wiring.

Figure 2. 1827 cable wiring
1827 cable wiring

Feature code 3930 RJ45 service processor communications port to uninterruptible power supply cable

FC 3930 (part number 46K5108) is a 290 mm (11.4 in.) RJ45 service processor communications power to uninterruptible power supply cable for certain Power System models.

Figure 3 shows the 3930 cable. One end of the cable, letter A, has an RJ45 connector that plugs into the service processor communications port. The other end of the cable, letter B, has a male 9-pin D-shell connector that plugs into the uninterruptible power supply vendor-supplied cable for System i communications. It has threads that mate with the cable external threads on the uninterruptible power supply.

Figure 3. Feature code 3930
1827 Feature code 3930

Connecting POWER product uninterruptible power supply communications for IBM i operating system

Use the following information to connect communications for a POWER® system operating IBM i operating system.

Note: Serial ports are rendered useless for AIX® use when a Hardware Management Console (HMC) is connected. However, platform connection to the uninterruptible power supply, which is managed by the FSP, is independent of an HMC being attached. Whether or not an HMC is connected, the designated serial port for uninterruptible power supply attach will setup correctly in feature code 1827 is connected before power is applied to the server (uninterruptible power supply attach is detected on FSP IPL). The serial ports are not standard EIA-232 ports. Therefore, the uninterruptible power supply must be attached through the 1827 cable and a relay contact interface (such as IBM type 9910, feature code 2939) via the uninterruptible power supply to use the IBM platform managed solution.

To use a standard uninterruptible power supply manufacturer serial interface and uninterruptible power supply monitoring application for the AIX® operating system, an asynchronous adapter (such as 2943 and 5723) must be installed and configured in AIX. The IBM i operating system only supports the IBM platform managed solution.

8233-E8B and 8236-E8C uninterruptible power supply communications

Attach the 1827 cable to the POWER server at the P1-T2 location.

Figure 4. 8233-E8B and 8236-E8C rear view with cable installation location
8233-E8B and 8236-E8C rear view with cable installation location

8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, 9179-MHD, and 5208 or 5877 uninterruptible power supply communications

Uninterruptible power supply support via the Serial to SPCN feature code (1827) is not supported on the 8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, and 9179-MHD. Uninterruptible power supply support may be added by using a 5802 or 5877 expansion unit. SPCN cables are used to attach the 8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, and 9179-MHD, and 5802 or 5877 SPCN ports, as shown in Figure 5. The connection from the uninterruptible power supply to the 5802 or 5877 is made directly from the uninterruptible power supply to the port labelled P2-T1. The 1827 is not needed.

Figure 5. 8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, 9179-MHD, and 5208 or 5877 rear view cable installation location
9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, 9179-MHD, and 5208 or 5877 rear view cable installation location

8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, 8205-E6D, 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, and 8268-E1D uninterruptible power supply communications

For IBM Power® 710 Express and IBM Power 730 Express (8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, and 8268-E1D), IBM Power 720 Express (8202-E4B, 8202-E4C, and 8202-E4D), and IBM Power 740 Express (8205-E6B, 8205-E6C, and 8205-E6D), feature code 3930 is used in addition to feature code 1827. Uninterruptible power supply communications are supported through a designated RJ45 port via the 3930 cable. See Figure 6 and Figure 7. The 9 pin, male end of the 3930 cable then attaches to the end of the 9 pin, female end of the 1827 cable. See Figure 8.

Figure 6. 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, and 8268-E1D rear view with cable installation location
8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, and 8268-E1D rear view with cable installation location
Figure 7. 8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, and 8205-E6D rear view with cable installation location
8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, and 8205-E6D rear view with cable installation location
Figure 8. Uninterruptible power supply wiring for the 8202-E4B, 8202-E4C, 8205-E6B, 8205-E6C, 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, and 8268-E1D
Uninterruptible power supply wiring for the 8202-E4B, 8202-E4C, 8205-E6B, 8205-E6C, 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, and 8231-E2D


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Last updated: Thu, March 15, 2018