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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.

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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