Specifications

The ULTRIX Operating System, Version 4.5 SPD 26.40.32
Notes:
1
Letter D = Data device only.
Letter L = Valid ULTRIX load device.
2
Disk and tape devices are connected to the DECsystem and DECstation via SCSI (Small Computer System Interface). There
is one integral SCSI controller. The SCSI controller will support up to seven devices in any combination. The controller has
an identifier which can be set via the DS5000 Console Interface (the factory default is id6). Each added device must have its
own unique identifier which must not conflict with any other device, including the SCSI controller. The SCSI controller should
always have the highest id.
3
The DECsystem 5400 and 5500 pprovide by default, a DSSI bus for RF disk support and an Ethernet interface. RF disks are
also supported by the KFQSA contoller. The DECsystem 5500 also provides by default a SCSI interface for RZ disk and TZ
tape support. RZ disks and TZ tapes are also supported on the 5500 by the KZQSA controller.
4
Two KZQSAs are supported on the DECsystem 5500. All SCSI disks and tapes listed in this SPD under the DECsystem
5500 are supported on the KZQSA. The KZQSA supports data devices only and not boot devices.
5
Although there are 4 ports, ports 1 and 2 are not available. Port 3 is a system console. Port 4 is available for printer or
modem.
6
The modems must be configured such that the Forced DSR attribute is NOT set on the modem. If the Forced DSR attribute
is set, the modem will be unable to recognize loss of connection, and may incorrectly assume that a connection has been
established. Consult the modem’s Owner’s Manual for specific information on clearing the
Forced DSR option.
7
DEClaser support is equivalent to that which is available for the LN03, LN03R, and LN03S printers.
8
Accepts TK50 distribution media.
9
Automatic stack loader tape drives are supported only by the dump, restore and cpio system utilities.
16