Alto Hardware Manual
73
APPENDIX K - OPTIONAL ALTO PERIPHERALS
This appendix· lists hardware items that have been interfaced to the Alto in quantities greater than one.
EOD/SPG
is
the source for information about many
of
these interfaces and devices, and may be willing to
contract
to
provide necessary hardware. Sources in
PARe
are not committed to producing any hardware.
No software guarantees are made about any of these
devices,
except
as
noted.
HyType Printer. A spinning daisy printer can
be
ordered from Diablo Systems, Inc.
Arrangements can be made with
SPG
to build a cable that will connect the printer to
the "printer connector" on the rear
of
the Alto. No additonal hardware
is
required,
although printers attached to Alto II are required
to
be self-powered. Software:
Bravo prints on the Diablo printer, and a
Bcpl
subroutine package (DiabloPrinter.Br)
is
available to drive the interface.
Versatec PrinterlPlotter. The Versatec plotters and printer/plotters can be connected
to
the Alto II without additional hardware. Contact
SPG
to
get a cable (PIN
216540).
Tape Controller. A two-card processor-bus interface
to
MDS
and Kennedy tape
drives.
It
will
handle
1600
bpi phase-encoded tapes only. Contact
ASD-South.
Trident Disk Interface. An interface
to
the Trident family
of
disk drives,
manufactured by Calcomp. Alto II owners should contact
SPG,
Alto I owners contact
PARC/CSL. Software: The Trident
disks
may be accessed in conjunction with
Operating-System routines, using the
TFS
software package (see Alto Subsystems
documentation).
Orbit. A piece
of
hardware which can be used to drive a variety
of
SLOT
printers
that obey the "9-wire standard
ROS
interface." Contact
ASD·South.
Extra Ethernets. Up
to
two
extra Ethenets can
be
installed in an Alto
of
any vintage.
Contact
PARC/CSL.
Ethernet Repeaters. Many miles
of
Ethernet can be hooked together with these.
Contact
PARC/CSL.
ArpaNet
(BBN
1822)
Interface. An interface
to
ArpaNet Imps and Packet Radio Units.
Contact
PARC/SSL.
EIA Interface. An interface to an
AMI
S1883
UART
and an
AMI
S2350
USRT.
Contact
ASD-South.
Communications Processor. Terminates up
to
16
lines at many speeds, codes and line
control disciplines. Contact
ASD·South.
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