IBM 86624RY Maintenance Manual - Page 218

is on. The meaning of the Attention lights is defined by the operating system. Refer to the operating system documentation to determine if it supports hot-plug PCI adapters and, if so, what the Attention lights indicate. 6 Serial B Connector: A serial signal cable for a modem or other serial device connects to this 9-pin serial connector. Serial port B is used by the operating system and cannot be shared by the Netfinity Advanced System Management Processor. See "Devices and I/O ports" on page 24 for port assignment information. If you are using a 25-pin signal cable, you need a 9-pin-to-25-pin adapter cable. 7 Video Connector: The monitor signal cable connects here. 8 Power Supply 1 Power Connector: The power cord for power supply 1 connects here. 9 NetBAY3: The tower models of the Netfinity 5500 M20 come with a NetBAY3 attached. You can install devices, such as the IBM EXP10 or a power distribution unit, in the NetBAY3. Refer to "Installing devices in the NetBAY3" for more information. 1 Management C Connector: This connector is used to attach a modem that is dedicated to communication with the Netfinity Advanced System Management Processor. 11 Universal Serial Bus 2 Connector: You can attach an I/O device to this universal serial bus (USB) connector. You need a 4-pin cable to connect devices to USB 1 or 2. Note If a standard (non-USB) keyboard is attached to the keyboard port, the USB ports are disabled while the power-on self-test (POST) is running and no USB devices will work during POST. 12 Universal Serial Bus 1 Connector: You can attach an I/O device to this universal serial bus (USB) connector. You need a 4-pin cable to connect devices to USB 1 or 2. Note If a standard (non-USB) keyboard is attached to the keyboard port, the USB ports are disabled while the power-on self-test (POST) is running and no USB devices will work during POST. 210 Netfinity Server HMM