Table of Contents
Advertisement
5.3
REMOTE
CONTROL,
PUNCHLREADER See Fig. 17
In
order
to
operate the
PUNCH/READER
the
control codes
DCl - DC4 ore
needed.
Jumper
pos
designation
doto bit No.
socket
-g 7
ro
r5
4-
!3
-z
T
1
1 0
1
PS 2
DCl: READER START
L~
0
0
0
2
DC2: PUNCH
"
--
()
T
1J
f-0
~r
' ( 51
u
N
c
H
~~eta~
FIG 17
3
4
DC3~
READER
STOP
DC4:PUNCH
fl
0 0
1 0
0
0 l 0
Normally Del .. DC4
come
from LINE
or
AUXILIARY
but when the
READER
uses
the
PUNCH, Del
aQd
DC4
come from the tape.
. .
5.4
CR &
STOP
DECODER
See
Fig.
18
Jumper
pos
designation
socket
0 1
l 0
PS 2
5
''READER"
CR
O 0 O 1 1 0
1
0
6
: READER STOP
0 0 1
0
0 l 1
7
O"J
or }:
READER
IN~ERRUPT
DELAY
"'lAUX
.._,,8-+-N-o.....o.INftRRUPT DELAY
.
FIG 18
A device performing CR normally needs extra
time for the operation, If the control cir-
cuits for the READER do not delay the rea-
ding o new word would be reod and probably
lost. The reoson
is
the fact there is no·i',
"hondshoke" between the READER ond the
otbn
equipment.
The
normal
operotion
is to
re~d
a new
word
as soon os UART hos
tronsmitt~d
the lost
receive~
word (TRE).
·
CR signals
Clear to RSS via jumper PS2:5
·~
(stop reading).
This
is
o
kind
of
error
~.
which must be
reset
by using
START.
RID
is controlled by jumper
PS2:7
or
8. Wit!i
no
jumper, D-input of RID acts as
if
the
li-
ne is H
and
the delay is independently.
PS2:S.
means; no delay and PS2:7 means;
RID
is con-
trolled
by
either
AUXILIARY::::ON or
LINE::ON,
When using
Remote
control for Stop
(DC3) of
the
READER
it results in reading of extra
words
from the
tape
because
as soon
as
tbe
parallel data from the READER exist in se-
rial form,
TRE
starts the coll for the next
word.
UART
must
transfer
the serial
data
into parallel doto ogoin before the Remote
control hos the information. To avoid this
jumper PS2:6 is used instead of jumper
PS2:3.
5. 5 RS-232..C OPERATION
For operations according to RS-232-C, three
jumpers are needed,
Jumper pos designation
socket
PS
i
8
RD
to AUX
PS 2_
2
RTS
to
l_lNE
PS 6
5
rD
to LINE
T~is
set-up also handles the full duplex
operation.
5.6 CURRENT
LOOP
In CURRENT LOOP operation .it
is
neceuary
to determine between half duplex or full
duplex mode and the current
~rote
at which
the transmission shall work.
5.7 REMAINING CONTROL SIGNALS
The rest of the jumpers allow certain sig-
nals to be forced to fixed conditions, They
con be used for testing purposes or speci-
fic applications:
Jumper pos designation
socket
PS
PS 5
PS 6
:::: 1
:: l
=
l
:::: 1
:: 0
: 1
:::: J
Finally four lines moy be set ON or OFF
by
connecting them to either +l2V or -12V with
solder jumpers (A
&
B). See Fig. 19.
Advertisement
Table of Contents
