Advantech BB-422PP9TB Manuel utilisateur

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707 Dayton Road | PO Box 1040 | Ottawa, IL 61350 USA

Phone: 1 (815) 433-5100 | Fax: 1 (815) 433-5109

www.advantech.com | E-mail: support@advantech-bb.com

Document Number: 20BB710-10806-00_r1_BB-422PP9R_BB-422PP9TB_4919qsg

Recommended Accessories

DB9 Male to DB9 Female Cable,

1.8 m length

Model# BB-9PAMF6

Power Supply, 12VDC, 6W,Stripped/

Tinned, International AC Input

(optional for BB-422PP9TB only)

Model# BB-SMI6-12-V-ST

Before you begin, be

sure you have the following:

BB-422PP9R

BB-422PP9TB

RS-422 Converter, Port-Powered

+ RS-232/422 Port-Powered Converter

+ DB9M to DB9F Adapter Cable (not included)

+ 12VDC, 6W Power Supply (not included,

optional for Model BB-422PP9TB only)

Biasing Resistors

The biasing resistors for the RS-422/RS-485 receiver are

4.7k Ohm resistors. These resistors are labeled R1 and R2

(See Figure 2). For further information on biasing, refer to

the “RS-422/485 Application Note” on the website.

External Power Supply Use

(Model BB-422PP9TB only)

When using an external supply, the supply should be

connected only to specically labeled power inputs (power

jack, terminal block, etc.).

Connecting an external power supply to the handshake lines

may damage the unit. Contact Advantech B+B SmartWorx

technical support for more information on connecting an

external power supply to the handshake lines.

Model BB-422PP9R - RS-422/485 Biasing Resistors

Model BB-422PP9TB - RS-422/485 Biasing Resistors

BB-422PP9R connections to the RS-422 side of the

converter are made through a DB9 female connector (see

Figure 1).

BB-422PP9TB connections to the RS-422 side of the

converter are made through terminal blocks (see Figure 2).

The RS-422 side of the converter is pinned out as shown

in Table 2:

When connecting to an RS-422 system, the converter

must be connected with proper polarity (see Figures 1 and

2). When no data is being sent and the driver is enabled,

the RS-232 line is negative and the RS-422 line TD(A) is

negative with respect to TD(B).

Product Overview Getting Started

Models BB-422PP9R and BB-422PP9TB are port-powered,

two-channel RS-232 to RS-422 converters that convert TD

and RD RS-232 lines to balanced RS-422 signals and are

congured to transmit in both directions between an RS-232

and RS-422 system.

The converters are powered from the RS-232 handshake

lines DTR and RTS. At least one of these lines must be

present. The converter will work regardless of whether the

lines are high or low. The RS-422 driver and receiver are

always enabled.

Model BB-422PP9TB can also be powered externally via

the terminal block. See Step #5.

RS-232

DB9 Female

Connector

RS-422

DB9 Female

Connector

Model BB-422PP9R

Model BB-422PP9TB

RS-232

DB9 Female

Connector

RS-422

Terminal

Block

RS-232 Pinout Connections

Connections to the RS-232 side are made through a DB9

female connector. The RS-232 side is pinned out to connect

directly into the COM port on your PC/computer/laptop or

any other DTE device (see Table 1).

To satisfy the requirements of some software, the RS-232

handshake lines are looped back (tied together). RTS is

connected to CTS, and DTR is connected to DCD and DSR.

Table 1. RS-232 PINOUTS

SIGNAL DB9 FEMALE PIN#

TD 3

RD 2

RTS 7

CTS 8

DTR 4

DSR 6

DCD 1

GND 5

Table 2. RS-422 PINOUTS (#BB-422PP9R)

SIGNAL DB9 FEMALE PIN#

TD A (-) 8

TD B (+) 3

RD A (-) 2

RD B (+) 7

GND 4, 6

RS-422 Pinout Connections

Figure 1. BB-422PP9R - Connection to an RS-422 System

Figure 2. BB-422PP9TB - Connection to an RS-422 System

SPECIFICATIONS

Communication RS-422

Data Rate 115.2 kbps, maximum

Power

Port-powered from RS-232 handshake lines.

(Model BB-422PP9TB only: Optional external

power via on terminal block, 12-16 VDC @ 40 mA)

Temperature 0 to +70 °C (operating)

Dimensions BB-422PP9R: 6.1 x 3.3 x 1.7 cm

BB-422PP9TB: 8.9 x 3.3 x 1.7 cm

Ce manuel convient aux modèles suivants

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