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- Subject: F.Y.I. AT Terminal
- Date: August 2, 1988
- - - - - - - - - - - - - - - - - - -
-
- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
- !!! NOTE: This problem has been fixed in later releases !!!
- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
- GENERAL
- INFORMATION: The AT terminal is supported as a diskless workstation that
- has the capability of adding one or two floppies. Floppy
- upgrade kits can be ordered to accommodate either one 5 1/4,
- one 3 1/2 or two 3 1/2 inch floppy drives. All kits include
- only low density drives; 360 KB for the 5 1/4 and 720 KB for
- the 3 1/2 drives. To order the correct floppy kit, you will
- need to know what kind of a machine the customer has.
-
- There are three versions that the AT terminal can come in.
- The first is identified by a metal front with a metal door
- that can be closed over the floppy area. This machine is
- sometimes referred to as a "SEED UNIT". Both the second and
- third variations have plastic fronts with plastic doors but
- have different motherboards. The second has a Samsung board
- that has a fabrication number of 2123. It also has round
- cylindrical part located at Y3 (see figure 1-1). This
- machine is sometimes referred to as a "SAMSUNG UNIT". The
- third version has a fabrication number of 2124 and has a
- rectangular part located at Y3 (see figure 1-1). This
- machine is sometimes referred to as a "SAMSEED UNIT". Please
- note that the parts referred to are quite small and may be
- a little difficult to locate.
-
- ---------
- | |
- | | Power
- | | Supply # Denotes the location of the expansion bus
- | #|
- | # --------|
- | xxx xxx| Location of floppy controller chips
- | # x| Location of Y3
- | # |
- -------------------
- Front of AT Terminal Figure 1-1
-
- Should you encounter problems with a SEED UNIT (metal front
- and door), please refer them to NHPD at (408)729-6700. These
- are Beta evaluation units and need to be handled by NHPD.
-
- Part numbers for AT Terminal floppy upgrade kits are as
- follows:
-
- SAMSUNG UNIT SEED UNIT SAMSEED UNIT
- 1 3 1/2 Floppy 720 KB 870-220001-100 870-220001-110 870-220001-111
- 2 3 1/2 Floppy 720 KB 870-220001-200 870-220001-220 870-220001-222
- 1 5 1/4 Floppy 360 KB 870-220001-300 870-220001-330 870-220001-333
-
- 3 1/2 upgrades must be purchased as a kit because they
- include mounting hardware that isn't available separately.
- 5 1/4 kits include the chip set, AT type cable and the drive
- and may, depending on the machine, include extra mounting
- hardware.
-
- If you feel you need to stick your neck out and quote a part
- number to a customer, you had better be sure you have the
- right one for the machine that they have. If you are not
- sure, send them to the parts department.
-
-
- AT TERMINAL BIOS DRIVE TABLE (ver 2.66)
-
- Drive Type Heads Cylinders Precomp
- 1 4 306 128
- 2 4 615 300
- 3 6 615 300
- 4 8 940 512
- 5 6 940 512
- 6 4 615 65535
- 7 8 462 256
- 8 5 733 65535
- 9 15 900 65535
- 10 3 820 65535
- 11 5 855 65535
- 12 7 855 65535
- 13 8 306 128
- 14 7 733 65535
- 15 0 0 0
- 16 4 612 0
- 17 5 977 300
- 18 7 977 65535
- 19 7 1024 512
- 20 5 733 300
- 21 7 733 300
- 22 5 733 300
- 23 4 306 0
- 24 9 1024 65535
- 25 8 640 0
- 26 6 820 65535
- 27 9 1024 0
- 28 5 1024 1025
- 29 9 925 925
- 30 5 830 512
- 31 7 830 512
- 32 10 830 0
- 33 7 1185 576
- 34 8 1024 1024
- 35 10 823 823
- 36 4 752 752
- 37 8 615 615
- 38 6 872 650
-