BRUEL & KJAER 6301 User guide
Instructions
·
..
and
Applications
~
Paper Tape Punch
Type
6301
A paper tape punch with two inputs.
The first is used
for
the punching
of
a 14
bit
8-4--2- 1 BCD input in a
standard punch code, using a
choice
of
two formats. The second is used
for
the
direct
punching
of
an
8
bit
input. Interface is contained within
the punch to
allow
the
direct
connection
between the inputs and
other
B & K instruments capable
of
providing a
digital
output.
PAPER TAPE PUNCH TYPE 6301
August 1972
CONTENTS
1.
INTRODUCTION
......................................
5
2.
CONTROLS
..........................................
7
2.1.
Front
Panel
of
Tape Punch
Type
6301
.............
7
2.2. Rear
Panel
of
Tape Punch
Type
6301
..............
8
3.
OPERATION
........................................
10
3.1. Preliminary Adjustments
.............
.
........
10
3.2. Loading Paper Tape
..........................
10
3.3. Operation
as
a Recording Medium
...............
12
3.4. Operation
with
8 & K Real
Time
Third
Octave
Analyzer Type 3347
..........................
13
3.5. Operation
with
8 & K Digital Encoder,
Type
4421
.................................
15
3.6. Operation
with
8 & K Manual Data
Unit,
Type
5599 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.
7. Operation
with
8 & K Digital Event Recorder,
Type
7502
.................................
19
3.8. Operation
with
8 & K Computer,
Type
7504
.......
21
4.
DESCRIPTION
.......................................
23
4.
1.
General . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . . . .
23
Parallel
to
Series Converter and
Control
Logic
......
24
Channel Counter
.............................
24
Code Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25
Data and Control Line
Switch
..................
25
Punch Circuits
..............................
25
4.2. Rear Connectors and Control Signals
.............
26
DATA
INPUT
socket
.........................
26
SUPPLEMENTARY
SOURCE
INPUT
socket
.......
31
4.3. Channel Counter
.............................
34
4.4.
Code
Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.5. Punch Formats
and
Codes
.....................
42
5.
SPECIFICATION~
....................................
48
5.1.
DATA
INPUT
...............................
48
5.2. SUPPLEMENTARY SOURCE INPUT
............
48
5.3. Punch
Output
(DATA
INPUT)
..................
48
5.4. Punch
Output
(SUPPLEMENTARY SOURCE
INPUT)
....................................
49
5.5. Channel Counter
.............................
49
5.6. Code Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
5.7. Power Requirements
..........................
50
5.8. Mechanical Details
...........................
50
5.9. Accessories Included . . . . . . . . . . . . . . . . . . . . . . . . . . 50
5.1
0.
Accessories Available . . . . . . . . . . . . . . . . . . . . . . . . .
51
1.
INTRODUCTION
Many present day instruments are capable
of
producing results at a far
faster rate than
the
conventional methods
used
can
record them. Where the
instruments
form
a
part
of
some feedback
monitoring
loop,
or
are
operating
on line
with
a computer, this problem
is
of
little
consequence, since
their
results can
be
assim
ilated just a
quickly
as
they
are produced. However,
outside
of
a feedback
loop
or
where the cost
of
using a computer on line
cannot be justified, very
real
problems can result, since conventional
recording methods are incapable
of
recording
at
the
same
rate. The outcome
of
this
is
that
the instrument must remain idle
while
its results
are
recorded.
Further, the
time
during which
it
remains idle
is
huge when compared
with
the
time
taken
to
produce
the
results.
Where the instrument
is
being
used
to
measure a non-varying
function,
or
alternatively one which varies at
extremely
low
frequency, this
time
lapse
can
be
tolerated. However,
if
this
function
is
of
a continuously variable
nature,
it
becomes a serious handicap, since much valuable information
about
the
function
can
be
lost
while
one set
of
results
is
recorded.
It
becomes obvious
that
in such
cases,
a
different
approach
to
recording
is
required.
Conventional recording, such
as
the
use
of
a level recorder,
is
of
an
analogue nature. When
the
instrument in
use
is
capable
of
providing a digital
output,
an
obvious alternative
would
be
to
use
digital recording techniques.
The most basic
of
these
is
to
record on punched paper tape,
as
provided
by
the Paper Tape Punch, Type 6301. Recording on punched paper tape
is
a
reliable, and relatively
low
cost method, which
can
offer
an
order
of
magnitude increase in
the
recording rate. Such recordings can then either
be
translated on
an
instrument such
as
a teletype,
or
used
as
a data
input
to
a
computer.
The Paper Tape Punch Type 6301
is
a
modified
version
of
the
GNT
model 34. Interface
has
been added
to
allow
the
direct
connection
of
other
B & K instruments.
Two
inputs are provided, a
DATA
INPUT
and a
SUPPLEMENTARY
SOURCE INPUT. The
DATA
INPUT
allows the
input
of
a
14
bit
8-4-2-1 BCD code,
as
provided
by
the
digital outputs
of
the
5
Real-Time
Third
Octave Analyzer
Type
3347, and
the
Digital Encoder
Type 4421. The
SUPPLEMENTARY
SOURCE
INPUT
allows
the
input
of
an
8
bit
code,
as
provided
by
the Manual Data
Unit
Type 5599, the Digital
Event Recorder Type 7502, and the Computer
Type
7504.
Where the
DATA
INPUT
is
used,
as
with
the 3347 and the 4421,
the
input
BCD signal
is
passed
through interface
circuitry
which converts
it
into
a punch code. This punch code
is
designed
into
the
6301, and may
not
be
altered
without
internal
circuitry
changes. One
of
three codes,
ASCII,
Friden's Flexowriter, and IBM PTTC/8, may
normally
be chosen,
but
other
codes may
be
designed in on request, although this
will,
of
course,
incur
extra cost. A choice
of
two
formats
is
also available. These
are
Typewriter
Format and Computer Format, and
are
selected via a switch. These
formats
are
again controlled via internal
circuitry
in
the
interface. Where
the
SUPPLEMENTARY
SOURCE
INPUT
is
used,
as
with
the
5599, the 7502,
and 7504, the code conversion
circuitry
in the interface
is
bypassed, and
the
input
is
punched
directly.
Note
that
where data
is
available
for
punching
at
both
inputs,
that
at the
SUPPLEMENTARY
SOURCE
INPUT
will
always
take
priority.
All
punching
is
carried
out
on standard one inch paper tape
with
8
information
channels.
The 6301
is
provided
with
an
auto transformer such
that
it
may
be
run
off
a variety
of
voltage supplies between 100 and 240 V AC, 50 Hz. Where
the supply
is
60Hz,
however, a special drive wheel in the punch must be
fitted.
6
2.
CONTROLS
2.1. FRONT PANEL OF TAPE PUNCH TYPE 6301
Fig.2.1. Positions
of
Switches-and Controls,
Front
Panel
Below the Punch Mechanism
will
be
found
two
switches.
TYPEWRITER
FORMAT/
COMPUTER
FORMAT
Pressing the
left
half
or
right half
of
the
switch
will
select
Typewriter
Format
of
punching
or
the Computer Format
of
punching respectively.
7
POWER
OFF/ON
Pressing
the
left
half
or
right half
of
this
switch switches the power
off
or
on
respec-
tively.
"Power
On"
indication
is
provided
by
a light above the switch.
On
the Punch Mechanism, either side
of
the puncher itself,
will
be
found
two
pushbuttons, marked
with
symbols. The
left
hand pushbutton
is
marked
El·
0 and the right hand pushbutton
is
marked¢¢.
TAPE
HANDLER
BUTTON
IJ·D
FEED CONTROL BUTTON
¢::1¢
Pressing
the
left
hand side
of
this push-
button
switches the tape handIi
ng
system
on.
Pressing
the right hand side
of
it
switches the tape handling system
off.
While the
left
hand side
of
this pushbutton
is
held
down,
the Punch Mechanism
will
feed plain tape.
When
it
is
released, the
tape feed
will
cease.
Pressing
the right hand
side
of
it
has
no effect.
On
top
of
the
puncher itself
will
be
found a white, unmarked
pushbutton. This
is
the TAPE
LATCH
RELEASE.
TAPE LATCH RELEASE While this pushbutton
is
held down,
the
tape feed and punching mechanism
is
released, allowing a new tape
to
be
inserted.
2.2. REAR
PANEL
OF TAPE PUNCH TYPE 6301
DATA
INPUT
SUPPLEMENTARY SOURCE
INPUT
VOLTAGE
SELECTOR
8
Multipin
socket
for
the connection
of
the
digital
output
of
a 14
bit
8-4-2-1 BCD
source, such
as
the
3347
or
4421.
Multipin
socket
for
the connection
of
an
8
bit
source, such
as
the 5599, 7502
or
the
7504.
For selection
of
the appropriate mains
voltage.
POWER SOCKET
To
turn
the
switch it
is
necessary
to
remove
the
central fuse, and then a wide
bladed screwdriver
or
a small coin may be
used.
For connection
of
AC
supply.
Fig.2.2. Positions
of
Inputs and Controls, Rear Panel
9
3.
OPERATION
The
B & K Paper Tape Punch, Type 6301,
is
designed
to
be used
as
a
recording medium for
the
digital
outputs
of
other
instruments. This chapter
has
thus
been extended
to
include descriptions
of
its operation with
them.
3.1.
PRELIMINARY
ADJUSTMENTS
Before
the
instrument
is
connected
to
the
power supply,
the
following
adjustments must be made.
1. Check
that
the
voltage selector
is
set
to
the
correct line voltage.
If
it
is
not, remove
the
central fuse and adjust by using a small coin
or
a
large screwdriver.
2. It
is
recommended
that
the
instrument
is
not
grounded, since this
would increase
the
possibility of ground loops within
the
system
in
which it is being operated.
The instrument may now be switched on by means
of
the
POWER
Off/On switch on
the
front
panel.
3.2. LOADING PAPER TAPE
Prior
to
the
commencement of recording, it
is
advisable
to
check
the
amount
of
paper
tape
available for punching.
10
1. The
quantity
of tape
in
the
punch may be checked
by
pulling
the
tape
drawer forward. The
front
of
the
tape
drawer will
drop
down
to
expose
the
tape
spool and pulleys,
as
shown
in
Fig.3.1.
If
there
is
insufficient
tape
available, replace
the
spool. It should be placed
on
the
spindle such
that
it rotates
in
a clockwise direction as
the
tape
is
pulled off.
2. Ensure
that
the
tape
comes
around
the
pulley
on
the
left hand side
of
the
tape
drawer as shown
in
Fig.3.1. Close
the
front
of
the
tape
drawer, ensuring
that
the
tape
goes under
the
pulley on
the
drawer's right
hand
side. Push
the
tape
drawer back into place.
3. Pull
the
tape
up and over
the
pulley
onthe
right hand side
of
the
punch mechanism. Push
the
TAPE LATCH RELEASE
button,
and
hand feed
about
two
or
three
inches
of
tape
into
the
right hand side
of
the
puncher itself.
4. Press
the
left hand side
of
the
FEED CONTROL BUTTON. Blank
tape,
punched
only
with
sprocket
holes, will
be
fed from
the
left
hand side
of
the
puncher. If this does
not
happen, press
the
TAPE
LATCH RELEASE
button
and check
that
the
tape
can feed freely
through
the
punch mechanism. Check also
that
it
is
feeding freely
through
the
pulleys.
Fig.3.1. Correct Loading
of
Paper
Tape
in
Tape
Drawer
11
3.3. OPERATION AS A RECORDING MEDIUM
The
following
comments apply irrespective
of
the system in which the
6301
is
operating.
12
1. Plug the digital
output
of
the instrument providing the data
to
be
recorded
into
the
appropriate
input
of
the 6301, using
the
correct
cable
as
specified in sections 3.4
to
3.8. The 3347 and 4421 should
be connected
to
the
DATA
INPUT. The 5599, 7502 and 7504
should
be
plugged
into
the
SUPPLEMENTARY
SOURCE INPUT.
(Note
that
if
any
of
these
are
plugged in while the Tape Punch
is
switched on, a spurious
output
might result due
to
noise genera-
tion.
This in no way harms
the
Punch, and recording may proceed
as
normal
as
soon
as
it
has
ceased.
However,
it
may
be
prefered
that
the
input
be
connected
with
the
Tape Punch switched
off).
2. Select
"Typewriter
Format"
or
"Computer
Format"
as
required,
using
the
TYPEWRITER
FORMAT/COMPUTER
FORMAT
switch.
"Computer
Format"
will
give a faster
output
since fewer characters
are punched.
"Typewriter
Format"
gives a more easily readable
output.
3.
Press
the
FEED
CONTROL
BUTTON
in order
to
obtain a suitable
length
of
leader tape.
4. Where the
outputs
to
be
recorded are many and short, there
is
an
advantage in operating
with
the Tape Handler switched
off.
After
each
output,
a section
of
blank tape may
be
fed
out
by
pressing the
FEED
CONTROL
BUTTON. The recording may then
be
detached
by
pulling
it
vertically upwards
from
the
punch. Note
that
this
forms
an
arrow
in the tape which may later
be
used
to
ascertain its
direction.
5. Where the
output
to
be
recorded
is
likely
to
be
long,
the
Tape
Handler should
be
used.
Feed
out
enough leader tape such
that
it
may be threaded around all
the
pulleys and attached
to
the
take-up
reel. Ensure
that
the
tape
is
threaded
as
in Fig.3.2. Switch
the
Tape
Handler on
by
pressing the
left
hand side
of
the TAPE
HANDLER
BUTTON.
(Note: when
the
Tape Handler
or
Tape Punch
is
switched on
or
off,
there
is
a possibility
of
mains spikes causing
spurious holes on
the
tape.
It
is
thus advisable
to
run
off
a blank
piece
of
tape after switch on
or
before switch
off
such
that
these
spurious holes are
not
confused
with
the recording itself).
Fig.3.2. Correct Threading
of
Paper
Tape
through
Tape
Handler
6. The Tape Punch
is
now ready
to
record an output. For details of
recording the various outputs of the instruments with which it may
operate, refer
to
sections 3.4, 3.5, 3.6, 3.7 and 3.8.
7. When recording has been completed, the Tape Punch should be
switched off by means of the
POWER
OFF/ON switch on the front
panel.
3.4. OPERATION WITH THE 8 & K REAL
TIME
THIRD
OCTAVE
ANALYZER
TYPE 3347
Paper
Tape Punch 6301
Fig.3.3. Connection
of
the 6301 to the Real Time Analyzer Type 3347
13
The 6301 may
be
used
as
a fast
output
recording device
for
the B & K
Real-Time
Third
Octave Analyzer, Type 3347. The 3347 itself consists
of
two
units, the Frequency Analyzer
Unit,
Type 2130, and
the
Control and
Display
Unit,
Type 4710. The 6301 contains interface which allows the
direct connection
of
the
DIGITAL
OUTPUT
of
the
4710
to
the
DATA
INPUT on its rear panel. Note
that
the
maximum permissible cable length
between the
two
is
about 2 metres (about
7ft).
If
a longer cable
is
required,
aspecial drive
circuit
must
be
used
for
each
line.
14
Outputs
from
the 3347 may
be
recorded
as
follows:
1. Connect the
DIGITAL
OUTPUT
of
the 4710
to
the
DATA
INPUT
of
the 6301, using the cable
AO
0085.
NOTE:
CONNECTION
AND
DISCONNECTION OF
THE
DIGITAL
OUTPUT OF
THE
4710
MAY
ONLY
TAKE
PLACE
WITH
THE
3347 SWITCHED OFF.
2. Set up the 6301
for
recording
as
described in sections 3.1, 3.2, and
3.3. Note
that
if
"Computer
Format"
is
chosen, a complete
spectrum
from
the 3347
will
be punched in
about
4 seconds. Where
"Typewriter
Format"
is
chosen, this
will
take about 7 seconds,
but
a more readable
output
will
result.
If
the major requirement
is
for
fast recording,
or
the tape punched
is
later
to
be
used
as
a data
input
to
a computer, then
"Computer
Format"
recording should
be
chosen.
3. The setting up and operating instructions
for
the 3347 may
be
found
in chapter 3
of
the 3347 Instructions and Applications
Manual.
4. As soon
as
both
instruments are
set
up and functioning,
an
output
may
be
recorded. This
is
done
by
pressing
the
READ
OUT
button
on the
front
panel
of
the 2130. Punching
will
start automatically,
and
will
cease
when the complete spectrum
has
been recorded.
Note
that
when outputs
from
the 3347 are being recorded
by
the
6301,
it
is
advisable
that
the
4710
be
switched
to
its
"Via
Store"
mode using the READ
OUT
MODE switch on its rear panel. This
will
ensure
that
the
spectrum recorded
is
always a
time
coincident
one, irrespective
of
the settings
of
the storage mode
of
the 2130.
5. A
further
recording may
be
made
as
soon
as
the
previous one
has
been completed,
by
again
pressing the
READ
OUT
button
of
the
front
panel
of
the 2130.
Recordings may be made on
an
automatic
basis
at a fixed time intervals
by
use
of
the
B & K Digital Clock,
Type
6201,
as
in
the
set
up shown in
Fig.3.4. The 6201
is
connected via
an
interface
into
the
SUPPLEMENTARY
SOURCE
INPUT
of
the 6301.
"Data
Request" pulses are then supplied at
regular intervals,
each
one causing
an
output
from
the 3347
to
be
punched.
Such a system could then be
used
for
automatic datalogging
of
a continuous
function.
Real
Time Analyzer
3347
-j -
~
-
lliiiil
ji}
2
~
'
..
Tape
Punch 6301
Punched Tape
0
70004-
Fig.3.4. Connection
of
Digital Clock, Type 6201
to
provide automatic data
logging
3.5. OPERATION WITH 8 & K
DIGITAL
ENCODER TYPE,4421
The B & K Digital Encoder
Type
4421
is
an
instrument which may
be
used
with
the B & K Level Recorders, Types
2305
and 2307,
to
convert
their
outputs
into
a digital
form.
The digital
output
of
the 4421 may then
be
recorded on punched tape using the 6301. Its
form,
when punched,
will
depend on the
function
of
the system in which the Encoder and Level
Recorder
are
operating.
If
it
is
to
perform frequency analysis, using a
third
octave
filter
set,
as
illustrated in Fig.3.5, then
the
output
of
the 4421
will
be
such
that
the
6301
will
punch one reading
for
each
of
the filters. With
octave filters, three such
outputs
will
be punched.
If,
however, the system
is
to
measure a continuous
function
then the
output
of
the 4421
will
be
punched continuously
at
a rate
limited
by
the 6301. Outputs
from
the 4421
may be recorded
as
follows:
15
Signal
to
be
recorded
Frequency Spectrometer
2113
Tape Punch
6301
Punched tape
Gray Encoder
AQ
0022
Gain setting info.
Digital Encoder
4421
/7o.363
Fig.3.5. Connection
of
6301 to the Digital Encoder Type 4421, with a
measuring system connected
16
1. Connect the OUTPUT
of
the 4421
to
the
OAT
A INPUT
of
the
6301, using cable
AO
0084.
Note
that
the cable length should
not
be
allowed
to
exceed
about
2 metres (about 7
ft).
2. Set up
the
6301
for
recording
as
described in sections 3.1, 3,2 and
3.3.
If
the system
is
monitoring
a continuous
function,
then in
"Computer
Format"
about
10
samples a second
will
be
punched,
while in
"Typewriter
Format"
about 6 samples a second
will
be
punched.
If
the system
is
being
used
for
frequency analysis,
the
speed
of
punching
will
be
limited
by
the
rate
with
which
the
Level
Recorder records the spectrum.
It
is
thus advised
that
"Typewriter
Format"
be
chosen, in order
to
give a more readable result, unless
the punched tape
is
later
to
be
used
as
data
input
to
a computer.
3. For
the
setting up and operating instructions
of
the
4421, and its
connection
to
a
2305
or
2307, refer
to
chapter 3
of
the
4421
Instruction Manual.
4. As soon
as
the system
is
set up and operating,
an
output
from
the
4421 may
be
punched. This
is
initiated
from
the Level Recorder
by
the
start
of
a recording. Punching
will
cease
automatically when
this recording
is
stopped.
5.
Further
recordings may
be
made,
as
soon
as
the
previous one
has
been completed,
by
again
initiating
them
from
the
Level Recorder.
3.6. OPERATION WITH B & K
MANUAL
DATA
UNIT
TYPE 5599
Where
the
6301
is
being
used
to
punch many
outputs
from
different
sources,
it
can
be
useful
to
be
able
to
put
some
kind
of
marker on the
punched tape
prior
to
each
seperate recording, especially
if
the data on the
recordings
is
not
to
be
processed
until
a later date. This marker can then
be
used
as
an
aid
to
identification. This may
be
done
by
means
of
the B & K
Manual Data
Unit,
Type 5599, which may
be
used
to
punch
identifying
numbers, in blocks
of
six,
onto
a punched tape via the 6301. ·
Preamplifier
2625
Signal I_
Real
Time
Analyzer
3347
Accelerometer
4339
Tape Punch
6301
-~~
~
Manual Data Unit
5599
Generators
> >
Punched Tape
Fig.3.6. Connection
of
Manual Data
Unit
Type 5599,
to
system
with
6301
and3347
An
application where such marking
would
be
useful
might
be
where a
Real-Time Analyzer
Type
3347
was
being
used
to
analyse the vibrations
of
each
of
a large number
of
generators,
as
illustrated in Fig.3.6, the 6301
17
being
used
to
record
each
output.
Prior
to
each
recording, the serial number
of
the generator causing
it
could
be
punched
onto
the tape, thus enabling its
identification at a later date,
by
means
of
the 5599. The 5599 must,
of
course, be programmed
to
punch in
the
same
code
as
the
6301, since
it
is
connected
to
the
SUPPLEMENTARY
SOURCE
INPUT
of
the 6301,
meaning
that
the code conversion part
of
the interface
is
bypassed, and its
input
is
punched
directly.
Operation
with
the 6301
is
as
follows:
18
1. Connect the OUTPUT
of
the
5599
to
the
SUPPLEMENTARY
SOURCE
INPUT
of
the 6301, using cable
AO
0084. Note
that
the
cable length should
not
be
allowed
to
exceed about 2 metres (about
7ft).
2. Check
that
the mains
input
of
the 5599
is
set correctly
for
the
supply voltage and connect
it
to
the
mains.
It
is
advised
that
the
instrument should
not
be
grounded in order
to
minimise
the
risk
of
errors due
to
ground loops. Switch the power on
by
means
of
the
ON/OFF
''
switch on its
front
panel. That
the
power
is
on
will
be
indicated
by
the POWER light
emitting
diode on its
front
panel.
3. Connect
the
correct
output
of
the
instrument providing the data
to
be recorded,
to
the
OAT
A
INPUT
of
the 6301, using
the
appropriate cable, and
set
it
up
as
described in sections 3.4 and 3.5.
4. Set up the 6301
for
recording
as
described in sections 3.1, 3.2 and
3.3.
5. As soon
as
the system
is
set
up and operating, transfer
of
data
from
the 5599
to
the
6301 may commence.
Reset
the
5599
by
pushing
the RESET
button
on its
front
panel.
6.
If
the number
of
characters
to
be
transferred
onto
the punched
tape
is
equal
to
or
less
than six, switch
the
INHIBIT
CONTROL
TRANSFER
switch on the
front
panel
of
the 5599
to
its
"Off"
position. Set
up
the
characters
to
be
transferred using the
thumbwheels on its
front
panel.
7.
Press
the
START
READ
OUT
button.
The characters indicated
by
the six thumbwheels
will
be
transferred
onto
the punched tape.
Control
of
the recording
will
then
be
transferred
to
the
instrument
connected
to
the
DATA
INPUT
of
the 6301.
If
it
is
the 3347, an
output
will
be
punched automatically
as
soon
as
the characters have
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