B&B Electronics 4WSD25OTB - Datasheet User Manual
Page 4

P#9150_4WSDxxOTB-0812ds - p4/4
www.bb-elec.com [email protected] [email protected]
International Office: 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104
European Office: Westlink Commercial Park Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445
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Figure 3: 4-wire RS-422
Used as the master in a master/slave
circuit with receive only slaves.
Full-duplex communications.
Requires a twisted pair for transmit, a
twisted pair for receive, and a ground
reference wire.
Switch settings are: Switch 1: RS-
422, Switch 2: Echo On, Switches 3
and 4: 4-wire.
Specifications
Input Power Requirement
10
– 48 VDC
Isolation
2000 VAC
Current Draw
28 mA at 12 VDC (typical)
RS-232 Connection
DB9/DB25
RS-422/RS-485
Connection
Removable Terminal
Block
Data Rate
Up to 115.2 kbps
Operating Temperature
32
– 158°F (0 - 70°C)
LED Indicators
TD and RD
Dimensions
(4WSD9OTB)
3.9 x 1.7 x 0.9 in
9.8 x 4.3 x 2.3 cm
Dimensions
(4WSD25OTB)
3.9 x 2.2 x 0.9 in
9.8 x 5.5 x 2.3 cm
Approvals
CE
DECLARATION OF CONFORMITY
Manufacturer’s Name:
B&B Electronics Manufacturing Company
Manufacturer’s Address:
P.O. Box 1040
707 Dayton Road
Ottawa, IL 61350 USA
Model Number:
4WSDxxOTB
Description:
RS-422/485 Converter
Type:
Light industrial ITE equipment
Application of Council Directive: 89/336/EEC
Standards:
EN 55022
EN 61000-6-1
EN 61000 (-4-2, -4-3, -4-4, -4-5, -4-6, -4-8, -4-11)
Michael J. Fahrion, Director of Engineering