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68 Netfinity 3500-M20 – Type 8657 Models 21Y, 22Y, 31Y, 32Y,
Some application programs require specific ports, and some
modems function properly only at certain communication
port addresses. You might need to use the Configura-
tion/Setup Utility program to change communication port
address assignments to prevent or resolve address con-
flicts.
Viewing or changing the serial-port
assignments
To view or change the serial-port assignments:
1. Restart the server and watch the monitor screen.
2. When the message Press F1 for Configura-
tion/Setup appears, press F1.
3. From the main menu, select Devices and I/O Ports;
then, press Enter.
4. Select the serial port; then, use the arrow keys to
advance through the settings available.
5. Select Save Settings; then, select Exit Setup to exit
from the Configuration/Setup Utility main menu.
Serial-port connectors
The following table shows the pin-number assignments for
the 9-pin, male D-shell serial-port connectors on the rear of
the server. These pin-number assignments conform to the
industry standard.
Universal Serial Bus ports
The server has two Universal Serial Bus (USB) ports, which
configure automatically. USB is an emerging serial interface
standard for telephony and multimedia devices. It uses Plug
and Play technology to determine the type of device
attached to the connector.
Notes:
1. If you attach a standard (non-USB) keyboard to the
keyboard connector, the USB ports and devices will be
disabled during the power-on self-test (POST).
2. If you install a USB keyboard that has a mouse port,
the USB keyboard emulates a mouse and you will not
be able to disable the mouse settings in the Configura-
tion/Setup Utility program.
Table 12. Serial-port connectors 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
1
5
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