10 6072-2004
Selection of V or Y function
Y
S1
ON
123456789
V
S1
ON
123456789
Selection of retiming function
Retiming
S1
ON
123456789
Retiming of
S1
ON
123456789
Selection of bits
9
S1
ON
123456789
10
S1
ON
123456789
11
S1
ON
123456789
*
S1
ON
123456789
V-function and Y-function are described
on page 11.
*) Use this setting for synchronous
protocols.
The transmitter will be active from the
start bit to 10 bit-times after the last
high databit
(see example below).
The speed shall be set to
≅
10 times
the required communication speed.
The retiming function calculates the exact bit-
length based on the speed set and recreates
the signal. This allows for more units in series.
The retiming works only for the indicated
speeds. For other speeds (e g 1.2 Mbit/s)
retiming can not be used.
Start bit
1 bit = 52µs
1 bit:1/19 200 = 52µs
Data rate 19 200
Transmitter active
Set the speed to 187.5 kbit/s
10x52µs = 520µs
↵
Example 19 200 bit/s
Retiming
possible
Turning/Transmission/
Number of units connected in serie
S1
ON
123456789
S1
ON
123456789
S1
ON
123456789
S1
ON
123456789
S1
ON
123456789
S1
ON
123456789
S1
ON
123456789
S1
ON
123456789
S1
ON
123456789
S1
ON
123456789
S1
ON
123456789
S1
ON
123456789
S1
ON
123456789
S1
ON
123456789
20
Number*
of units
20
20
20
20
20
20
20
20
15
10
5
20
10
4
S1
ON
123456789
Switch settings LD-63
0.4 ms 2 400 bit/s
Turning-
time
Transmission
rate
0.2 ms 4 800 bit/s
0.1 ms 9 600 bit/s
75 µs 14 400 bit/s
50 µs 19 200 bit/s
37 µs 28 800 bit/s
25 µs 38 400 bit/s
16 µs 62 500 bit/s
11 µs 93 750 bit/s
9 µs 115.2 kbit/s
6 µs 187.5 kbit/s
3 µs 375 kbit/s
2 µs 500 kbit/s
1 µs 1.0 Mbit/s
0,7 µs 1.5 Mbit/s
When using RS-232 interface it is not necessary to
select number of bits and transmission rate. The RS-232
interface can handle transmission rates from 0 up to
115.2 kbit/s.
*) For additional units
please contact
Westermo
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