•
I
BELL SYSTEM PRACTICES
AT&TCo Standard
SECTION 578-300-100
Issue 4, June 1974
"DATASPEED® "MAGNETIC TAPE SET
GENERAL DESCRIPTION
CONTENTS
1.
GENERAL
.
2.
DESCRIPTION
PHYSICAL AND ELECTRICAL
CHARACTERISTICS
COMPONENTS
..
A.
Control Panel
B.
Tape Transport
C.
Electronics Module
D.
Cabinet
.....
.
3.
STATION ARRANGEMENTS
CAP ABILITIES
. .
.
. .
TYPES OF OPERATION
A.
Attended
B.
Unattended
4.
INTERFACE INFORMATION
DATASET INTERFACE
LOCAL 33 OR 35
TELETYPEWRITER INTERFACE
LOCAL37TELETYPEWRITER
EIA INTERFACE FOR OFF-LINE
OPERATION
..........
.
LOCAL
37 KSR FOR
ASR
OPERATION
TELETYPEWRITER INTERFACE .
PARALLEL DEVICE INTERFACE
CDT
INTERFACE
. .
. . .
"DATASPEED"
40
SERIAL
EIA INTERFACE
CUSTOMER PROVIDED EQUIPMENT
INTERFACE
.............
.
PAGE
1
2
3
3
3
7
8
8
9
9
11
11
11
16
16
16
21
21
23
27
29
7
1.
GENERAL
1.01
This section provides a general description of the
4200 Series Dataspeed Magnetic Tape Sets. It is_
reissued to include information on DATASPEED 40 serial
I
EIA interface,
and information
presented
in TCN 1826.
Changes and additions
are indicated
by marginal arrows.
However, arrows are omitted from 4.45 through 4.54 all of
I
which are added in this issue.
--J
TAPE
TRANSPORT COVER
DATASET
~
COMPARTMENT
ELECTRONICS
CONTROL PANEL
MODULE
~
---------------
COMPARTMENT
,..--
.,-
Figure 1 - Magnetic Tape Set for Stand-Alone Operation or
Adjunct to 33, 35, 37, or 40
Teletypewriters
-
Prepared tor American Telephone
and Telegraph Company by Teletype Corporation
©1970,
1971
and 1974 by
Teletype
Corporation
All
rights reserved
Printed in U.S.A.
Page 1
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