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SPECIFICATIONS
1.
Synchronization: Asynchronous
2.
Baud Rate: RS-232D: 75, 110, 134.5, 150, 200, 300,
600, 1,200, 1,800, 2,400, 4,800,
9,600,
or 19,200
BPS
(selectable)
RS-422A: 75, 110, 134.5, 150, 200, 300,
600, 1,200, 1,800, 2,400, 4,800,
9,600, 19,200,
or 38,400
BPS
(selectable)
Current Loop: 75, 110, 134.5, 150, 200,
300, 600, 1,200, 1,800, 2,400,
4,800, 9,600,
or 19,200
BPS
(selectable)
3.
Word length:
Start bit: 1 bit
Data bit: 7 or 8 bits (selectable)
Parity bit: Odd, even, none, or ignore (selectable)
Stop bit:
1
bit or more
4.
Input signal polarity:
1)
RS-232D:
MARK
=
logic "l"
(
- 3 to - 25V)
SPACE
=
logic "0" ( + 3 to + 25V)
2)
RS-422A:
MARK
=
logic "1"
The RDA
is
negative
(-0.2
V
to
-6
V)
with respect to the RDB.
SPACE
=
logic "0"
The RDB
is
positive (+0.2
V
to +6 V)
with respect to the RDB.
RDA:
Inverted RDB: Noninverted
3)
Current loop:
MARK
=
logic "1" (Current on)
SPACE
=
logic "0" (Current
off)
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