Advantech B+B SmartWorx 232PTC9 Manuale utente

Product Overview

Master

Port

DB9

female

Slave Port 1

DB9 female

Power the unit with 12 VDC.

(Use B+B SM16-12-V-P230-C1)

Master Port Pinouts

Cascading Port Combiners

methods of capturing the path to the master port, RTS and

automatic data sensing. The rst slave port to either raise

its RTS line or transmit data captures the path to the master

port. The path will be locked on that slave port until it either

lowers its RTS line, or 60 milliseconds after the end of its

transmission. Note that the 232PTC does not buffer any data,

any data sent to the opposite slave port during this period will

be lost.

Handshake signals

The CTS signal on each slave port indicates to the slave

devices if the path to the master port is available. If the slave

port’s CTS line is high, data received by that port will be

transmitted out the master port. If CTS is low, the opposite

slave port has captured the path to the master and any data

at the inactive slave port will be lost. For example, if both

slave ports are inactive and have RTS low, CTS will be high

at both slave ports, indicating that the path is available. As

soon as one slave port captures the path by either beginning

its transmission or raising its RTS line, the CTS signal at

the opposite slave port will drop to the low state. The RTS

output on the pin 7 of the master port follows the RTS signal

level found on the active slave port.

Pinouts

All ports on the 232PTC are congured as RS-232 DCE

ports, using DB9 female connectors. Note that a null-modem

type connection will be required to connect the 232PTC9 to

other DCE congured ports. Tables 1 and 2 and Figure 2

show the conguration of each port.

Power

2.5 mm

phono

jack

232PTC9 Port Diagram

Data ow from master port to slave ports

All data that is sent to the TX line, pin 3 on the master port,

is broadcast to both slave ports under all conditions. This

data appears on pin 2 of each slave port.

Data ow from slave ports to master port.

Data that is sent to the TX line (pin 3) on the slave ports

must compete for the path to the master port. There are

two

Slave Port Pinouts

Port combiners can be cascaded by

connecting the master port of each successive

unit to one of the slave ports of the preceding

unit. Each additional port combiner adds one

slave port to the system.

Slave Port 2

DB9 female

RTS

CTS

RTS

CTS

RD TD RTS

2 3 7

CONTROL

CIRCUITRY

GROUND

PORT 1 PORT 2

MASTER

PORT

SIGNAL PIN DIRECTION

TD 3 Input

RD 2 Output

RTS 7 Output

GND 5 *****

SIGNAL PIN DIRECTION

TD 3 Input

RD 2 Output

RTS 7 Input

CTS 8 Output

GND 5 *****

Power the Unit

Connect Serial Cables

Operation

Recommended Accessories

Power Supply

SM16-12-V-P230-C1

Serial Cables

9PAMFG

Document number – 710-11167-00_232PTC9_3916qsg

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

Before you begin, be

sure you have the following:

232PTC9

RS-232 2-Port Combiner

Fast and easy on the web:

www.advantech-bb.com

+ 232PTC9

+ AC to DC Power Adapter

(required but not included)

QUICK START

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