B&B Electronics 485PTBR - Datasheet User Manual
Page 2
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485PTBR-0812-2/2
© 2003 by B&B Electronics. All rights reserved.
www.bb-elec.com [email protected] [email protected]
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Table 1
COMPONENT REPLACEMENTS FOR
CHANGING BAUD RATE TIMEOUTS
Baud
Rate
Time
(ms)
Resistor
(R3)
(ohm)
Capacitor
(C7)
(mfd)
300
33.3
330K
0.1
600
16.6
160K
0.1
1200
8.33
820K
0.01
2400
4.16
430K
0.01
4800
2.08
200K
0.01
9600
1.04
100K
0.01
19200
.520
56K
0.01
38400
.260
27K
0.01
57600
.176
16K
0.01
115200
.0868
8.2K
0.01
Figure 1. PC Board Layout - Top
Figure 2. PC Board Layout - Bottom
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