Connecting External Options
transfer rate to the UltraSCSI devices must be limited to Fast
transfer rates. You accomplish this by using the SCSISelect Utility
program. See “Using the SCSISelect Utility” on page 46 for
additional information.
If you plan to attach an external SCSI device, you must order an
additional SCSI cable. That is, to use an external device with the
Netfinity 3500 server, you must connect it to the external SCSI
connector, using a SCSI cable. This SCSI cable must have the
proper connector for the SCSI external connector on one end, and
the proper connector for the external device on the other end. To
select and order the correct SCSI cable for use with the external
device, contact your IBM reseller or IBM marketing representative.
Attaching External Options
To attach an external option:
1. Turn off the server and all attached devices.
2. Follow the instructions that come with the option and the
information in this chapter to connect it to the server.
Serial Port Connectors
Serial ports are used to communicate with printers, plotters, external
modems, auxiliary terminals, and other computers. Your server
provides two serial ports (1 and 2). You can add more serial ports
by installing a serial adapter in one of the expansion slots.
Serial ports transfer data asynchronously; they can transmit any
number of bits at any time, with no restriction on the duration of
the pauses between characters.
The serial ports transmit and receive data and commands at a rate
of 300 bits per second (bps) up to 115 200 bps. The bits-per-second
measurement is commonly referred to as the baud rate.
Chapter 4. Installing Options
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Summary of Contents for Netfinity 3500
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Page 14: ...Laser Compliance Statements xii Netfinity 3500 User s Handbook...
Page 32: ...Input Output Connectors 14 Netfinity 3500 User s Handbook...
Page 200: ...Replacing the Battery 182 Netfinity 3500 User s Handbook...
Page 210: ...Ordering Publications 192 Netfinity 3500 User s Handbook...
Page 250: ...Taiwan Class A Electronic Emission Statement 232 Netfinity 3500 User s Handbook...
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Page 294: ...IBM Part Number 05L2067 Printed in U S A January 1998 5L2 67...