BELL SYSTEM PRACTICES
AT&TCo
Standard
SECTION 314-811-100
Issue 2, October
1977
1A TRANSACTION
TELEPHONE
TEST LINE STATION
DESCRIPTION
CONTENTS
PAGE
1.
GENERAL
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2.
PHYSICAL DESCRIPTION
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A.
General
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B.
Cabinet
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C.
41 B2 Data
Mounting
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D.
101A
Power
Unit
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E.
21OA Power
Unit
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F.
Data
Set 407A-Type
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G.
DAS 806E-Type
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3.
FUNCTIONAL
DESCRIPTION
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A.
General
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B.
Data
Set 407A-Type
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C.
Indicator
LEDS
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D.
DAS 806E-Type
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4.
OPTIONS
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A.
Data
Set 407A-Type
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B,
101A
Power
Unit
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5.
REFERENCES
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1
2
2
2
2
2
3
3
4
4
4
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6
8
8
8
9
1.
GENERAL
1.01
This section covers the physical and functional
descriptions
of the
1A TRANSACTION
telephone
test line station
(1A TTTLS)
shown in
Fig. 1.
1.02
This
section
is reissued
to
add
minor
clarifications
and to note that the 1A TTTLS
can be equipped
with all three types of 806E data
auxiliary
sets (thereby
making
it suitable
to test
TRANSACTION
telephone
sets I, II and II with
printer).
Since this reissue
constitutes
a general
revision,
change
arrows
ordinarily
used to denote
changes
have been omitted.
1.03
The purpose
of the 1A TTTLS is to provide
an automatic
facility
to remotely
verify the
operation
of TRANSACTION
telephone
sets which
are
used
on
the
switched
telecommunications
network.
1.04
The
1A TTTLS
can
provide
up to two
TRANSACTION
telephone
test lines.
Each
test line consists
of a data
set 407A-type
and a
data auxiliary
set (DAS) 806E-type.
1.05
The 41B2 data
housing
is used to mount
the test lines and the necessary
power units
(101A and 21OA types).
1.06
The
1A
TTTLS
may
be
housed
in
a
KS-20018-L12-type
cabinet, or equivalent,
or
any mounting
rack arrangement
that
will accept
the 23-inch 41B2 data mounting.
NOTICE
Not for use or disclosure
outside the
Bell System except under written
agreement
Printed
in U.S.A.
Page
1
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