EPSON
PRINTERS
6.8.2
Setting
The SwitchesAnd
Jumpers
On Board
#8148
There are
two
DIP
switches and 16 junnpers on
the
#8148 interface board.
They are used for
the
selection of various conditions by
the
user. The
function and factory setting of each switch
and
jumper
are
shown inTables 6-
18,
through
6-23
Table
6-18
Setting
of
DIPSwitch 1
sw
Function
ON
OFF
Factory
Setting
1-1
Word
length
selection
7
bits
8
bits
OFF
1-2
Parity
check
enable/disable
Enable
Disable
OFF
1-3
Odd/Even
Parity
check
Even
Odd
OFF
1-4
Flag
positive/negative
polarity
selection
Negative
(Note
2)
Positive
(Note
1)
OFF
1-5
ON
1-6
Bit
Rate
Selection
See
Table
6-19
OFF
1-7
ON
1-8
OFF
Note;
1 Positive: Data Entry Enabled Reverse Channel ON ( +
3\/to
+ 27V)
Data Entry Disabled Reverse Channel OFF(-3V
to
-27\/)
2. Negative: Data Entry Enabled Reverse Channel
OFF
(-3\/to-27V)
Data
Entry Disabled Reverse
Channel
ON
(+
3V
to
+ 27V)
6-21
GENERAL
Table
6-19
Bit
Rate
Selection
Bit
rate
SW1-5
SW1-6
SW1-7
SW1-8
75
ON
ON
ON ON
100
ON
ON
ON
OFF
134.5
ON ON
OFF
ON
150
ON
ON
OFF
OFF
200
ON
OFF
ON
ON
300
ON
OFF
ON
OFF
600
ON
OFF
OFF
ON
1200
ON
OFF
OFF
OFF
1800
OFF
ON
ON
ON
2400
OFF
ON
ON
OFF
4800
OFF
ON
OFF
ON
9600
OFF
ON
OFF
OFF
19,200
OFF
OFF
ON
ON
Note:
1.
Combinations
other
than
those
shown
above
will
betaken
as
19,200
BPS.
2. The
operation
over
1,200
BPS
in
current
loop
mode
is
not
guaranteed.
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