Patton electronics 2086 Series Bedienungsanleitung

USER

MANUAL

SALES OFFICE

(301) 975-1000

TECHNICAL SUPPORT

(301) 975-1007

http://www.patton.com

Part# 07M2086-C

Doc# 055051UC

Revised 05/11/99

MODEL 2086 Series

Optically Isolated

RS-232 to RS-485

Interface Converter

CERTIFIED

An ISO-9001

Certified Company

1 2

1.0 WARRANTY INFORMATION

Patton Electronics warrants all Model 2086 Series 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 2086 Series generates and uses radio frequency ener-

gy, 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 2086 Series has been tested and

found to comply with the limits for a Class A computing device in accor-

dance with the specifications in Subpart J of Part 15 of FCC rules,

which are designed to provide reasonable protection from such interfer-

ence in a commercial installation. However, there is no guarantee that

interference will not occur in a particular installation. If the Model 2086

Series does cause interference to radio or television reception, which

can be determined by disconnecting the RS-232 interface, the user is

encouraged to try to correct the interference by one or more of the fol-

lowing measures: moving the computing equipment away from the

receiver, re-orienting the receiving antenna and/or plugging the receiv-

ing 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.

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

Services at:

Tel: (301) 975-1007

Email: [email protected]

www: http://www.patton.com

Patton Electronics' technical staff is also available to answer any

questions that might arise concerning the installation or use of your

Patton Model 2086 Series. Technical Service hours: 8AM to 5PM

EST, Monday through Friday.

NOTE: Packages received without an RMA number will not be

accepted.

3 4

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 OneYear 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 Support at (301) 975-1007.

2.1 FEATURES

• Operates asynchronously, point to point or multipoint,

over 2 or 4 wires

• Up to 32 multipoint device drops in a polling environment

• Data rates to 115.2 Kbps

• Passes transmit & receive data

• Operates off 5V power supply

• Operates without “echo”

• Driver controlled as “constantly on”, “controlled by RTS”, or

“controlled by DTR”

• Compact size ( 3.8” x 2.10” x 0.8”)

• Twisted pair connection via strain relief, RJ-11 or RJ-45

• 2500 Vrms Optical Isolation

2.2 DESCRIPTION

The Model 2086 Series High Speed RS-232 to RS-485 Interface

Converter provides exceptional versatility in a compact package.The

Model 2086 Series supports asynchronous RS-232 data rates to 115.2

Kbps over one or two unconditioned twisted pair.

The Model 2086 Series can handle up to 32 terminal drops in a

multipoint polling environment. Carrier may be set to “constantly on” or

“controlled by RTS”, or “controlled by DTR” and the unit operates with-

out “echo”.

The Model 2086 Series is equipped with a DB-25 for the RS-232

connection. Options for twisted pair connection include RJ-11, RJ-45,

or Terminal Block. 2500Vrms optical isolators provide isolation

between the RS-232 and RS-485 interfaces.

3.0 CONFIGURATION

The Model 2086 Series is configured using a four position DIP

switch and two headers. Figure 1 (below) shows the location of the DIP

switch and the two headers on the board.

3.1 DIP SWITCH CONFIGURATION

The DIP switches control the transmit/receive signals on the Model

2086 Series.The table below shows the default configuration of the

switches. Following the default table is a chart showing the different

switch and jumper combinations that the Model 2086 Series has to

offer. Also included in this section is a description of the switches.

+XMT- G -RCV+

OFF

Figure 1. Top View of Model 2086 Series board, showing Dip switch and jumpers

DIP SWITCH JP4

JP3

Power

DIP SWITCH DEFAULT SETTINGTABLE

Position Function

S1 RTS Control

S2 DTR Control

Reserved

S4 Transmitter Control

Default

Switch Function

off no RTS control

of transmitter

off no DTR control

off n/a

ON Constantly ON

1234

5 6

KEY: ^ S1-1, S1-2, and S1-4: only one switch can be ON at any time.The

other two must be off. It is recommended that you, the user

disconnect (the model 2086 Series) while changing configurations.

* JP4A: If this jumper is off, only the RS-485 transmitter is controll-

ed by RTS or DTR. If this jumper is ON, both the RS-485 transmit-

ter and receiver are controlled by RST or DTR. When the transmit-

ter is off, the receiver will be ON, and similarly, when the transmit

ter is ON, the receiver is off.

** JP3A & JP3B: Both jumpers or either On or off. When the jumpers

are ON, the RS-485 transmitter and receiver are connected direct-

ly together.This will only function in HDX.When the jumpers are

off, the RS-485 transmitter and receiver are disconnected from

each other.This can be operated in either HDX or FDX, depend-

ing on the setting of JP4A.

Switch S1: RTS Control

When Switch S1 is in the On position, the DTE input signal RTS (Pin 4) is

used to control the transmitter of the Model 2086 Series. In this mode, when

RTS is high, the 2086 Series transmits data from the RS-232 port to the RS-

485 port. Switch S2 and S4 must be OFF position when Switch S1 is ON.

S1 Setting

On RTS Controls the Transmitter

Off RTS Control is OFF

Switch S2: DTR Control

When Switch S2 is in the ON position, the DTE input signal DTR (Pin 20)

is used to control the transmitter of the Model 2086 Series. In this mode, when

DTR is high, the 2086 Series transmits data from the RS-232 port to the RS-

485 port. Switches S1 and S4 must be OFF position when Switch S2 is

ON.

S2 Setting

On DTR Controls the Transmitter

Off DTR Control is OFF

Switch S3: Reserved

Switch S3 is reserved for future use and must remain in the OFF position.

Switch S4: Transmitter Control

When Switch S4 is in the OFF position, the input of RTS or DTR controls

whether the unit can send data (based on the configuration of switch S1 and

S2). In this setting, and when in the appropriate signal is high, the 2086 Series

can transmit data from the RS-232 port to the RS-485 port.When S4 is ON,

the 2086 Series transmitter is always enabled.

S4 Setting

On Constant Transmitter

Off Transmitter is controlled by RTS or DTR

3.2 JUMPER CONFIGURATION

Jumper straps JP3 and JP4 are used to control two-wire/four-wire,

half-duplex/full-duplex operation,and receive impedance, respectively.

*NOTE: Default Settings shown in bold italics

INTERFACE CARD STRAP SUMMARY TABLE

Strap Function ON Off

JP3A 2 Wire/4 Wire Mode 2 Wire

4 Wire*

JP3B 2 Wire/4 Wire Mode 2 Wire

4 Wire*

JP4A Half/Duplex Half Duplex

Full Duplex*

JP4B Impedance 120 Ohm

12K Ohm *

Transmission S1-1^S1-2^S1-3 S1-4^JP4A* JP4B JP3A & JP3B**

Mode RTS Control DTR Control

Reserved

always off

RS485 TX always ON

RS-485, FDX,

Transmitter is

always on

off off off ON off n/a off

RS-485, FDX,

Transmitter is

controlled by

RTS

ON off off off off n/a off

RS-485, FDX,

Transmitter is

controlled by

DTR

off ON off off off n/a off

HDX, 4-Wire

controlled by

RTS

ON off off off ON n/a off

HDX, 2-Wire

controlled by

RTS

ON off off off ON n/a ON

HDX, 4-Wire

controlled by

DTR

off ON off off ON n/a off

HDX, 2-Wire

controlled by

DTR

off ON off off ON n/a ON

SWITCH COMBINATION CHART

7 8

4.0 INSTALLATION

Once you have properly set the configuration switches and jumpers, you

are ready to connect the Model 2086 Series to your system.This section tells

you how to properly connect the Model 2086 Series to the RS-485 and RS-232

interfaces, and how to operate the Model 2086 Series.

4.1 CONNECTION TO THE RS-485 INTERFACE

To function properly, the Model 2086 Series

must

have one or two twisted

pairs of metallic wire.These pairs must be”dry” (unconditioned) metallic wire,

between 19 and 26 AWG (the higher number gauges may limit distance).

For your convenience, the Model 2086 Series is available with either an

RJ-11 jack or RJ-45 jack.

4.1.1 4-WIRE CONNECTION USING RJ-11 OR RJ-45

The RJ-11 and RJ-45 connectors on the Model 2086 Series RS-485 side

are pre-wired for a standard TELCO wiring environment.The signal/pin rela-

tionships are shown below:

RJ-11 SIGNAL RJ-45 SIGNAL

1...................GND* 1 .................N/C

2...................RCV- 2 .................GND*

3...................XMT+ 3 .................RCV-

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

5...................RCV+ 5 .................XMT-

6...................GND* 6 .................RCV+

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

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

*Connection to ground is optional

In most modular 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 both the Model 2086

Series and the RS-485 device use a 6-wire RJ-11 connector. Similar

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

tion of the two.

MODEL 2086 Series RS-485 DEVICE

SIGNAL PIN# PIN# RS-485 SIGNAL

GND†1 -------------------N/C

RCV- 2 -------------------4 XMT-B

XMT+ 3 -------------------5 RCV-A

XMT- 4 -------------------2 RCV-B

RCV+ 5 -------------------3 XMT-A

GND†6 -------------------N/C

4.1.2 2-WIRE CONNECTION

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

When using this configuration, be sure to first set the Model 2086

Series to "two wire" mode—then use

only the transmit (XMT) pair

shown on the following page.

2086 Series SIGNAL RS-485 SIGNAL

XMT+....................................XMT-A

XMT- .....................................XMT-B

The above wiring pattern applies regardless of whether you are

making the RS-485 connection via RJ-11 or RJ-45. For specific wiring

instructions, please refer to the previous page of Section 4.

4.2 WIRING FOR MULTIPOINT CIRCUITS

The Model 2086 Series supports multi-point applications using

either a star or daisy chain topology. Both topologies require special

wiring, as well as specific DIP switch settings for units.

Note: Refer to Section 3.0 for DIP switch settings.

Pair1

Pair 2

RJ-11 RJ-45

9 10

4.2.1 STAR TOPOLOGY

Using a star topology, you may connect several Model 2086

Series together in a master/slave arrangement. Maximum distance

between the units will vary based upon the number of drops, data rate,

wire gauge, etc. Call Technical Support for specific distance estimates.

Figure 2 (below) shows how to wire the two-pair cables properly

for a Model 2086 Series star topology. Note that the ground connec-

tion is not needed.

HOST FIRST SLAVE SECOND SLAVE

XMT+ RCV+ RCV+

XMT- RCV- RCV-

RCV+ XMT+ XMT+

RCV- XMT- XMT-

Figure 2. Star wiring for Model 2086 Series host and slaves

4.2.2 DAISY CHAIN TOPOLOGY

Using a daisy chain topology, you may connect several Model

2086 Series together in a master/slave arrangement. Maximum dis-

tance between the units will vary based upon the number of drops,

data rate, wire gauge, etc.

Figure 3 (below) shows how to wire the two-pair cables properly

for a Model 2086 Series daisy chain topology. Note that the ground

connection is not needed.

HOST FIRST SLAVE OTHER SLAVE(S)

XMT+---------------------RCV+-----------------------RCV+

XMT- ---------------------RCV- -----------------------RCV-

RCV+---------------------XMT+-----------------------XMT+

RCV- ---------------------XMT- -----------------------XMT-

Figure 3. Daisy chain wiring for Model 2086 Series host and slaves

4.3 CONNECTION TO THE RS-232 INTERFACE

The Model 2086 Series is configured as a modem DCE. Once you

have properly configured the Model 2086 Series and connected the

twisted pair wires correctly, simply plug the Model 2086 Series directly

into the DB-25 DTE port of the RS-232 device. Remember to insert

and tighten the two captive connector screws.

(Note: If you must use a cable to connect the Model 2086 Series

to the RS-232 DTE device, make sure it is a

straight through

cable of

the shortest possible length—we recommend 6 feet or less).

4.4 4-Wire Connection Using Terminal Blocks

If you purchased the Models 2086M or 2086F, 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 termi-

nal 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 4. 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.

11 12

5. 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 two pair cross over cable

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

Models 2086M/2086F RS-422/-485 Device

SIGNAL TERMINAL BLOCK SIGNAL

XMT+ TB (5) RCV+

XMT- TB (4) RCV-

RCV+ TB (1) XMT+

RCV- TB (2) XMT-

4.4.1 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 Models

2086M/2086F to half duplex mode by switching DIP switches and

jumpers (refer to section 3.0 for this configuration)—then use

only the

transmit (XMT) pair

as shown below

Model 2086M/2086F RS-485 Device

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

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

4.5 OPERATING THE MODEL 2086 SERIES

Once the Model 2086 Series is properly installed, it should operate

transparently—as if it were a standard cable connection. Operating

power is derived from the RS-232 data and control signals; there is no

“ON/OFF” switch.

Figure 4. Model 2086M/2086F, Terminal Block & Cable Routing

13 14

APPENDIX A

PATTON ELECTRONICS MODEL 2086 SERIES

SPECIFICATIONS

Transmission Format: Asynchronous

Data Rate: Up to 115,200 bps

Range: 4,000 feet

RS-232 Interface: DB-25, female, male

RS-485 Interface Options: RJ-11, RJ-45 jack or Terminal

Block

Transmit Line: 2, 4 wire unconditioned twisted pair

Transmit Mode: 4-wire, full or half duplex; 2-wire

half duplex

Control Signals: DSR turns “ON” immediately after

the terminal raises DTR

Optical Isolation: 2500Vrms

Power: Uses +5V regulated power supply

(provided)

Temperature: 0 to 50º C

Humidity: 5 to 95%, non-condensing

Size: 3.8” x 2.1” x 0.8”

APPENDIX B

PATTON ELECTRONICS MODEL 2086 SERIES

RS-232 PIN CONFIGURATIONS

PATTON ELECTRONICS MODEL 2086 Series

RS-485 PIN CONFIGURATIONS

RJ-11 SIGNAL RJ-45 SIGNAL

1...................GND* 1 .................N/C

2...................RCV- 2 .................GND*

3...................XMT+ 3 .................RCV-

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

5...................RCV+ 5 .................XMT-

6...................GND* 6 .................RCV+

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

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

*Connection to ground is optional

8- (DCD) Data Carrier Detect From Model 2086

7- (SG) Signal Ground

6- (DSR) Data Set Ready From Model 2086

5- (CTS) Clear to Send From Model 2086

4- (RTS) Request to Send To Model 2086

3- (RD) Receive Data From Model 2086

2- (TD) Transmit Data To Model 2086

1- (FG) Frame Ground

To Model 2086 Data Term. Ready (DTR) - 20

DIRECTION “DCE Female” SETTING DIRECTION

RJ-11 RJ-45

APPENDIX C

PATTON ELECTRONICS MODEL 2086 SERIES

LIST OF AVAILABLE MODELS

DB25 REMOTE

MODEL CONNECTOR CONNECTOR

2086M Male Terminal Block

2086F Female Terminal Block

2086MRJ45 Male RJ45

2086FRJ45 Female RJ45

2086MRJ11 Male RJ11

2086FRJ11 Female RJ11

2086M/230 Male Terminal Block

2086F/230 Female Terminal Block

2086MRJ45/230 Male RJ45

2086FRJ45/230 Female RJ45

2086MRJ11/230 Male RJ11

2086FRJ11/230 Female RJ11

Patton Electronics Company

NOTE: The Models Codes that are “BOLD” are the international

versions.

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