IBM 866441Y - Netfinity 5600 - 8664, Руководство по техническому обслуживанию аппаратной части

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One keyboard-port connector
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One auxiliary-device-port connector
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One SCSI connector
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One Ethernet-port connector
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Two Universal serial bus ports
See the illustration in “Input/output connectors and
expansion slots” on page 91 for the locations of the
connectors.
Serial ports:
The server comes with two serial ports.
(See “Input/output connectors and expansion slots” on
page 91 for the locations of the connectors.) These ports
are used to communicate with printers, plotters, external
modems, scanners, and auxiliary terminals. These ports
also enable you to transfer data between computers.
Serial ports can transfer data asynchronously, which
means that they can transmit any number of characters at
any time, with no restriction on the duration of the pauses
between characters.
The serial ports can transmit and receive data and
commands at rates of from 300 bits per second up to
115 000 bits per second.
Serial port A is shared by the operating system and the
integrated Netfinity Advanced System Management
Processor. Serial port B can be used only by the
operating system.
Each serial port has a 9-pin, male D-shell connector on the
back of the server. The pin-number assignments of this
connector conform to the industry standard.
1
5
6 9
The following table shows the pin-number assignments for
the serial-port connectors.
When you turn on the server, the POST routine assigns
the serial ports to specific communication port addresses.
Table 2. Serial port pin-number assignments
Pin Signal Pin Signal
1 Data carrier detect 6 Data set ready
2 Receive data 7 Request to send
3 Transmit data 8 Clear to send
4 Data terminal ready 9 Ring indicator
5 Signal ground
Netfinity 5600 - Type 8664
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