Patton electronics 593/45 Manual de usuario

USER

MANUAL

MODELS 593/25, 593/45

and 593/TB

RS-422/RS-485

Optical Isolators

SALES OFFICE

(301) 975-1000

TECHNICAL SUPPORT

(301) 975-1007

http://www.patton.com

Part# 07M593

Doc# 055041U Rev. A

Revised 07/05/00

An ISO-9001

Certified

Company

APPENDIX B

PATTON ELECTRONICS MODEL 593 SERIES

EIA-530 PIN CONFIGURATIONS

Patton Electronics Company

7- Signal Ground

3-(RD) Receive Data-A From Model 593 Series

2-(TD) Transmit Data-A To Model 593 Series

From Model 593 Series Transmit Data-B (RD)-14

DIRECTION “DCE” SETTING DIRECTION

To Model 593 Series Receive Data-B (RD)-16

1 2

TABLE OF CONTENTS

SECTION PAGE

1.0 Warranty Information.............................................................2

1.1 Radio and TV Interference

1.2 CE Notice

1.3 Service Information

2.0 General Information...............................................................4

2.1 Features

2.2 Description

3.0 Cofiguration ............................................................................5

3.1 Dip Switch S2 & S3 Location

3.1.1 Configuration DIP Switches Sets S2 & S3

3.1.2 Four-Wire Full Duplex Operation (factory default)

3.1.3 Two-Wire Half Duplex Operation

3.1.4 Four-Wire Half Duplex

3.2 JP7 & JP8 Strap Locations

3.3 Data Rates Dip Switch Setting S2 and S3

4.0 Installation .............................................................................9

4.1 Connecting to The RS-422 or Rs-485 Interface

4.1.1 4-Wire Connection Using RJ-45

4.1.2 2-Wire Connection Using RJ-45

4.1.3 4-Wire Connection Using Terminal Blocks

4.1.4 2-Wire Connection using Terminal Blocks

4.1.5 4-Wire Connection Using DB-25

4.1.6 2-Wire Connection Using DB-25

4.2 Operating the Model 593 Series

Appendix A - Specifications........................................................14

Appendix B - RS-232 Pin Assignments......................................15

1.0 WARRANTY INFORMATION

Patton Electronics

warrants all Model 593/25, 593/45, and 593/TB

components to be free from defects, and will—at our option—repair or

replace the product should it fail within one year from the first date of

shipment.

This warranty is limited to defects in workmanship or materials,

and does not cover customer damage, abuse or unauthorized modifi-

cation. If this product fails or does not perform as warranted, your sole

recourse shall be repair or replacement as described above. Under no

condition shall Patton Electronics be liable for any damages incurred

by the use of this product. These damages include, but are not limited

to, the following: lost profits, lost savings and incidental or consequen-

tial damages arising from the use of or inability to use this product.

Patton Electronics specifically disclaims all other warranties,

expressed or implied, and the installation or use of this product shall

be deemed an acceptance of these terms by the user.

1.1 RADIO AND TV INTERFERENCE

The Model 593/25, 593/45, and 593/TB generates and uses radio

frequency energy, and if not installed and used properly—that is, in

strict accordance with the manufacturer's instructions—may cause

interference to radio and television reception. The Model 593/25,

593/45, and 593/TB has been tested and found to comply with the lim-

its for a Class A computing device in accordance with the specifications

in Subpart J of Part 15 of FCC rules, which are designed to provide

reasonable protection from such interference in a commercial installa-

tion. However, there is no guarantee that interference will not occur in

a particular installation. If the Model 593/25, 593/45, and 593/TB does

cause interference to radio or television reception, which can be deter-

mined by disconnecting the RS-485 interface, the user is encouraged

to try to correct the interference by one or more of the following meas-

ures: moving the computing equipment away from the receiver, re-ori-

enting the receiving antenna and/or plugging the receiving equipment

into a different AC outlet (such that the computing equipment and

receiver are on different branches).

1.2 CE NOTICE

The CE symbol on your Patton Electronics equipment indicates

that it is in compliance with the Electromagnetic Compatibility (EMC)

directive and the Low Voltage Directive (LVD) of the Union European

(EU). A Certificate of Compliance is available by contacting Technical

Support.

3 4

1.3 SERVICE

All warranty and nonwarranty repairs must be returned freight pre-

paid and insured to Patton Electronics. All returns must have a Return

Materials Authorization number on the outside of the shipping contain-

er. This number may be obtained from Patton Electronics Technical

Support at:

telephone: (301) 975-1007

email: [email protected]

web address: http://www.patton.com

NOTE: Packages received without an RMA number will not be

accepted.

Patton Electronics' technical staff is also available to answer any

questions that might arise concerning the installation or use of your

Patton Model 593/25, 593/45, and 593/TB. Technical Support hours:

8AM to 5PM EST, Monday through Friday.

2.0 GENERAL INFORMATION

Thank you for your purchase of this Patton Electronics product.

This product has been thoroughly inspected and tested and is warrant-

ed for One Year parts and labor. If any questions or problems arise

during installation or use of this product, please do not hesitate to con-

tact Patton Electronics Technical Services at (301) 975-1007.

2.1 FEATURES

• Asynchronous Operation

• Half or Full Duplex over 2 or 4 wire lines

• Maximum cable length 4000 ft.

• Supports Data rates to 115.2 kbps

• 2500 Vrms isolation

2.2 DESCRIPTION

The Patton Models 593/25F, 593/45 and 593/TB are asynchro-

nous RS-422/RS-485 optical isolators, which guard your asynchronous

data equipment from the hazards of ground looping. All Models have

selectable Dip switch settings for RS-422/RS-485 applications. The

Model 593 series provides 2500Vrms of isolation and supports data

rates up to 115.2 kbps. Models 593/25F/45/TB are powered by an

external +5V regulated power supply.

The Models 593/25F, 593/45, and 593/TB isolates transmit data

(XMT+ and XMT-) and receive data (RCV+ and RCV-). The model

593/45 has a RJ-45 on both sides, the model 593/TB has a terminal

block on both sides and the model 593/25F has DB-25 female connec-

tors on both sides.

Warning: This product will not provide complete protection should your

equipment or building be subject to a direct lightening hit.

5 6

3.0 CONFIGURATION

The Models 593/25F, 593/45, and 593/TB feature configuration via hard-

ware switches and headers. This section describes all possible hardware config-

urations, including the factory default settings. Table 1 below summarizes config-

uration of switches and headers for the Model l 593/25F, 593/45, and 593/TB.

3.1 DIP SWITCH S2 & S3

The Models 593/25F, 593/45, and 593/TB feature two eight-position Dip

switches (S2 and S3). These switches are accessed by opening the plastic

case by inserting a small flat blade screwdriver in the slot on either side of the

case and twisting gently. Figure 1A, below shows Models 593/TB & 593/45

bottom view of the printed circuit board and the location of the dip switches.

Figure 1B shows Model 593/45 bottom view of the printed circuit board and the

location of the DIP switches

The Models 593/25F, 593/45, and 593/TB switches (S2-1 thru S2-8 &

S3-1 thru S3-8) can be configured as either “On” or “Off”. Figure 2 shows the

orientation of the DIP switches with respect to ON/OFF positions.

3.1.1 Configuration DIP Switches Sets S2 and S3

The two eight-position Dip switches are used to configure the units for

common asynchronous data rates, full or half duplex over 2-wire/4-wire twisted

pair. The following sections describe all the possible configurations.

Figure 2. Close up of DIP switches showing ON/OFF positions.

The switch is shown in the Off position.

NOTE: When selecting any hardware configurations

below, Switch S2 and Switch S3 must be set the same.

S3 ON

OFF

ON OFF

Figure 1B. Model 593/25, location of S2 &

S3 on Printed Circuit Board

OFF

ON OFF

Figure 1A. Models 593/TB & 593/45, location

of S2 & S3 on Printed Circuit Board

Position Function ON/OFF Full Duplex Half Duplex Half Duplex

S2-1 TX Mode HD/FD OFF ON ON

S2-2 Operation 422/485 ON OFF OFF

S3-1 TX Mode HD/FD OFF ON ON

S3-2 Operation 422/485 ON OFF OFF

S1-1,2 Interface 2W/4W OFF ON OFF

S1-3 RX IMP. 120 /HI ON ON ON

S1-4 Not Used ( ) X X X

S4-1, 2 Interface 2W/4W OFF ON OFF

S4-3 RX IMP. 120 /HI ON ON ON

S4-4 Not Used ( ) X X X

Table 1. Configuration summary of swithes and headers

Switch Mode 422 4W 485 2W 485 4W

Ω

Typical Application Settings

3.1.2 Full/Half Duplex S2-1 and S3-1

Switches S2-1 and S3-1 determine full duplex or half duplex trans-

mission mode.

3.1.3 422/485 Operation S2-2 and S3-2

Switches S2-2 and S3-2 determine RS-422 or RS-485 interface

operation.

Half Duplex Full Duplex

S2-1 ON OFF

S3-1 ON OFF

RS-422 RS-485

S2-2 ON OFF

S3-2 ON OFF

3.2 DIP Switch S1 & S4

The Models 593/25F, 593/45, and 593/TB features 2 four-position DIP

switches S1 and S4. Figure 3A (below) shows Models 593/TB & 593/45 top

view of the printed circuit board and where S1 and S4 are located. Figure 3B

shows Model 593/25 top view of the printed circuit board and the position of S1

and S4. Following figure 3A/3B is a detailed description on the different switch

settings and their functions.

3.3 Data Rates DIP Switch Setting S2 and S3

The table below shows the data rates DIP switch settings for S2 and S3.

Switches S2 and S3 must be set identically to operate properly.

S4 S1

Figure 3A. Models 593/TB & 593/45 Location of JP7 Pins 1-4 & JP8 Pins 1-4

Figure 3B. Model 593/25, Location of JP7 Pins 1-4 & JP8 Pins 1-4

Model 593 Series Data Rate Table

Switch Positions Data Rates

S2 Position S3 Position 4800 bps 9600 kbps 19.2 kbps

S2-3 S3-3 OFF OFF OFF

S2-4 S3-4 OFF OFF OFF

S2-5 S3-5 OFF OFF OFF

S2-6 S3-6 OFF OFF ON

S2-7 S3-7 OFF ON OFF`

S2-8 S3-8 ON ON OFF

Model 593 Series Data Rate Table (continued)

Switch Positions Data Rates

S2 Position S3 Position 38.4 kbps 57.6 kbps 115.2 kbps

S2-3 S3-3 OFF OFF ON

S2-4 S3-4 OFF ON ON

S2-5 S3-5 ON OFF OFF

S2-6 S3-6 OFF OFF OFF

S2-7 S3-7 OFF OFF OFF`

S2-8 S3-8 OFF OFF OFF

3.2.1 2W/4W Interface S1-1, 2 and S4-1, 2

Switches S1-1, 2 and S4-1, 2 set up the interface for 2 wire or 4 wire

operation.

3.2.2 Receive Impedance S1-3 and S4-3

Switches S1-3 and S4-3 set the receive impedance for 120 Ohms or

high impedance.

2 Wire 4 Wire

S1-1, 2 ON OFF

S4-1, 2 ON OFF

120 Ohm High Impedance

S1-3 ON OFF

S4-3 ON OFF

9 10

4.0 INSTALLATION

Once you have properly set the configuration switches and

jumpers, you are ready to connect Models 593/25F, 593/45, or 593/TB

to your system. This section tells you how to connect the interfaces

and how to operate your Model 593/25F, 593/45, or 593/TB.

4.1 CONNECTING TO THE RS-422 OR RS-485 INTERFACE

To function properly, the Models 593/25F, 593/45, and 593/TB

must have one or two pair of twisted pairs of metallic wire. These pairs

must be “dry” (unconditioned) metallic wire between 19 and 26 AWG.

The 593 Series has three physical interfaces as listed below.

Following the list is figure 4, which shows the location of the physical

interfaces.

1. Model 593/45: RJ-45 jacks on both sides

2. Model 593/TB: Terminal blocks with strain relief on both sides

3. Model 593/25F: DB-25 female connectors on both sides.

4.1.1 4-Wire Connection Using RJ-45

The RJ-45 connectors on the Model 593/45 are pre-wired for a

standard TELCO wiring enviroment. The signal/pin relationships are

shown below.

RJ-45 SIGNAL

1 ......................................N/C

2 ......................................GND*

3 ......................................RCV-

4 ......................................XMT+

5 ......................................XMT-

6 ......................................RCV+

7 ......................................GND*

8 ......................................N/C

*Connection to ground is optional

In most modular RS-422/RS-485 applications it is necessary to

use a "cross over" cable. The diagram below shows how a cross over

cable should be constructed for an environment where the Model

593/45 and the RS-422/RS-485 device uses a 8-wire RJ-45 connector.

Similar logic should be followed when using RJ-45 connectors or a

combintion of the two.

MODEL 593/45 RS-422/485 DEVICE

SIGNAL PIN# PIN# RS-422/485 SIGNAL

NC 1 -------------------N/C

GND 2 -------------------N/C

RCV- 3 -------------------5 XMT-

XMT+ 4 -------------------6 RCV+

XMT- 5 -------------------3 RCV-

RCV+ 6 -------------------4 XMT+

GND†7 -------------------N/C

N/C 8 -------------------N/C

11 12

4.1.2 2-Wire Connection Using RJ-45

Most RS-485 devices employ a two-wire, half duplex configuration.

When using this configuration, be sure to first set the Model 593/45 to

half duplex mode by switching DIP switches and jumpers (refer to sec-

tion 3.0 for this configuration)—then use

only the transmit (XMT) pair

as shown below

593/45 SIGNAL RS-485 SIGNAL

XMT+....................................+

XMT-.....................................-

4.1.3 4-Wire Connection Using Terminal Blocks

If you purchased the Model 593/TB, you will need to open the

case to access the terminal blocks. The following instructions will tell

you how to open the case, connect the bare wires to the terminal

blocks, and fasten the strain relief collar in place so that the wires

won't pull loose.

1. If the case is not already open, open it now by twisting it open

with a small plastic screwdriver.

2. Strip the outer insulation from the twisted pairs about one inch

from the end.

3. Strip back the insulation on each of the 2 twisted pair wires

about .25 inch.

4. Place the cable through the end plate, and make a small loop

in the cable and feed the cable under the tie wrap which is cur-

rently installed in the board. When you have completed this

assembly it should resemble figure figure 5. Connect

one pair

of wires to XMT+ and XMT- (transmit positive and negative)

on the terminal block, making careful note of which color is

positive, and which color is negative.

5. If you are using 4-wire mode, connect the other pair of wires to

RCV+ and RCV- (receive positive and negative) on both of the

terminal blocks, again making careful note of which color is

positive, and which is negative.

Ultimately, you will want to construct a four pair cross over cable

that makes a connection with the RS-422/485 device, as shown below.

Model 593/TB RS-422/-485 Device

SIGNAL TERMINAL BLOCK SIGNAL

TXB+ TB (5) RXB+

TXA- TB (4) RXA-

RXB+ TB (1) TXB+

RXA- TB (2) TXA-

4.1.4 2-Wire Connection Using Terminal Blocks

Most RS-485 devices employ a two-wire, half duplex configuration.

When using this configuration, be sure to first set the Model 593/TB to

half duplex mode by switching DIP switches and jumpers (refer to sec-

tion 3.0 for this configuration)—then use

only the transmit (XMT) pair

as shown below

Model 593/TB RS-485 Device

XMT+ .......................... +

XMT- ............................ -

Figure 5. Model 593/TB, showing Terminal Block & Cable Routing

13 14

4.1.5 4-Wire Connection Using DB-25

Most DB-25 connectors on the Model 593/25F conform to EIA-530

interface standards. When connecting to the RS-422/485 devices

which also conform to EIA-530 standards, your cable should have

crossed over wiring, as shown below.

Model 593/TB RS-485

SIGNAL DB-25 PIN DB-25 PIN SIGNAL

TXA+ 2 3 RXA+

TXB- 14 16 RXB-

RXA+ 3 2 TXA+

RXB- 16 14 TXB-

4.1.6 2-Wire Connection Using DB-25

Most DB-25 connectors on the Model 593/25F conform to EIA-530

interfaces standards. The RS-422/485 devices also conform to EIA-530

requirements and when connecting these devices, follow the wiring

shown below.

Model 593/25F RS-485

SIGNAL DB-25 PIN SIGNAL

TXA 2 +

TXB 14 -

4.2 OPERATING THE MODELS 593 SERIES

Once the Models 593/25F, 593/45, and 593/TB are properly configured

and installed, it should operate transparently___as if it were a standard cable con-

nection. Plug in the external power supply and the units will be powered up.

APPENDIX A

PATTON ELECTRONICS MODEL 593/25, 593/45, and 593/TB

SPECIFICATIONS

Transmission Format: Asynchronous, full or half duplex

Interface Standard: RS-422/RS-485

Connectors: Model 593/25F; DB-25 female on

both sides

Model 593/45; RJ-45 on both sides

Model 593/TB; Terminal block on

both sides

Data Rates: Up to 115.2 kbps

Power Supply: External wall-mount transformer,

Regulated +5 VDC @ 120mA

Isolation: 2500 Vrms/optical Isolation

Dimensions: Model 593/45 & 593/TB

3.8”L x 2.1”W x 0.79”H

Model 593/25

4.1”L x 2.1”W x 0.79H

Temperature Range: 0-60°C (32-140°F)

Altitude: 0-10,100 feet

Humidity: 5 to 95% noncondensing

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