B+B SmartWorx 4WSD9R Manuale utente
You can perform a loopback test by connecting either
an RS-232 to RS-422/485 converter or a USB to RS-
422/485 converter to the 4WSD9R(4WSD9TB).
Using HyperTerminal or a similar program, connect to
the appropriate COM port. Remember to set the baud
rate to 9600. Turn off HyperTerminal local echo. Start
typing. If you can see the data you are typing, the
loopback is successful.
Loopback Test
7
Bias is provided by 4.7kΩ pull-up/down resistors on
the Data-In lines. This value is adequate for most
applications without termination. If another value is
required, space is provided on the PC for through-hole
resistor placement (R12, R21, R14, and R23).
Biasing
8
Recommended Accessories
DB9 Male to DB9 Female Cable,
1.8 m (6 ft) length
# 9PAMF6
12VDC, 6W Power Supply, 2.5mm Plug,
International AC Input
# SMi6-12-P230-C1
1-888-948-2248 | Europe: +353 91 792444
advantech-bb.com
707 Dayton Road | PO Box 1040 | Ottawa, IL 61350
Phone: 815-433-5100 | Fax: 815-433-5109
www.advantech-bb.com | E-mail: support@advantech-bb.com
Fast and easy on the web:
www.advantech-bb.com
QUICK START
GUIDE
Document Number: 710-10715-00_r1_4WSD9x_4617qsg
Before you begin, be
sure you have the following:
Models 4WSD9R, 4WSD9TB
Port-Powered RS-232 to RS-485 Converter
+ RS-232/485 Isolated Converter
(#4WSD9R or #4WSD9TB)
+ DB9 to DB9 Adapter Cable (not included)
+ 12VDC, 6W Power Supply (not included)
RS-232 Pinouts
2
Product Overview
RS-232
DB9 Female
Connector
(DCE)
Model 4WSD9TB
RS-232
DB25 Female
Connector
(DCE)
RS-422/485
Terminal
Block
Conguration
Switch
RS-422/485
DB9 Female
Connector
External 12VDC
Power Jack
Model 4WSD9R
External 12VDC
Power Jack
Getting Started
1
Models 4WSD9R & 4WSD9TB convert RS-232 signals to
RS-422/RS-485 and vice versa. RS-232 TD signals are
converted to balanced RS-422 or RS-485 signals. RD RS-
422/485 signals are converted to RS-232.
Table 2. RS-422/485 PINOUT
PIN # SIGNAL
2RD (A)-
3TD (B) +
4GND
6GND
7RD (B)+
8TD (A)-
Table 1. RS-232 PINOUT
PIN # SIGNAL
1DCD
2RD
3TD
4DTR
5GND
6DSR
7RTS
8CTS
RS-422-RS-485
3Automatic Send Data Control
5
Unlike converters that require programming the hardware
handshake signals to control RS-422/RS-422 operation,
Models 4WSD9TB or 4WSD9R provide Automatic Send
Data Control, enabling the driver only when transmitting:
In RS-485 Modes, the RS-485 driver is enabled by
circuitry which senses the RS-232 TD Input.
In RS-485 Half-Duplex Mode, the receiver is enabled
when not transmitting (Echo Off).
In RS-485 Full-Duplex Mode, the receiver is always
enabled.
In RS-422 Full-Duplex Mode, the transmitter and
receiver are always enabled.
Table 3. SWITCH SETTINGS
RS-485 2-Wire Half-Duplex
SWITCH # POSITION
1RS-485
2Echo Off
32-wire
42-wire
Table 4. SWITCH SETTINGS
RS-485 4-Wire Full-Duplex
SWITCH # POSITION
1RS-485
2Echo On
34-wire
44-wire
Table 5. SWITCH SETTINGS
RS-422 4-Wire Full-Duplex
SWITCH # POSITION
1RS-422
2Echo On
34-wire
44-wire
DIP Switch Settings
6
Mode Wiring Examples
4
Questo manuale è adatto per i seguenti modelli
1
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