Omnitron RS422/485 User Manual download pdf

iConverter

RS422/485

Serial RS-422 and RS-485 to

Fiber Media Converter User Manual

OVERVIEW:

The Omnitron iConverter RS422/485 is a manageable

serial RS-422 or RS-485 to fiber converter that transmits

serial protocol over fiber media. Fiber transmission extends

serial signals up to 120km and protects against electrical

and magnetic interference.

The RS422/485 is available with a single-mode, multimode

or single-fiber transceiver. The serial port interface is

available with a DB-9 female connector or terminal block

connector for field wiring.

The RS422/485 automatically detects the signal baud

rate of the connected point-to-point Full-Duplex RS-422

serial devices, ranging from 110 to 921,600 baud. The

RS422/485 also automatically adjusts to changes in the

point-to-point Full-Duplex RS-422 baud rate during

operation, without interrupting the data service. Connection

to DTE or DCE Full-Duplex point-to-point RS-422 devices

is configured by an easily accessible DIP-Switch on the

front-panel.

Half-Duplex RS-485 and Full-Duplex RS-485 (sometimes

referred as Multi-point RS-422) operation is supported via

a configurable baud rate DIP-Switch to match the master/

slave communication timing.

A built-in remote Fiber Loop-Back DIP-Switch provides

easy validation of the fiber segment. The Loop-Back

does not interrupt signal transmission over the fiber.

Built-in configurable terminators support Full-Duplex

and Half-Duplex operations, allowing the unit to be

deployed and terminated at any node in the serial line.

The RS422/485 is designed to work in any

iConverter

chassis. When installed in a multi-module chassis with an

iConverter Management Module, the RS422/485 can be

remotely monitored and managed by software control.

Management is supported on the iConverter 19-Module,

5-Module and 2-Module chassis. The 1-Module chassis

supports RS422/485 as a standalone serial to fiber

converter.

Note that software control for remote configuration

of the RS422/485 requires a multi-module chassis

with an

iConverter Management Module, such as the

Network Management Module (NMM).

For more information on using and configuring the

RS422/485 via software control, please refer to the

NetOutlook

™

Management Software user manual.

PORT STRUCTURE:

Front-Panel Ports:

The front-panel of the

iConverter RS422/485 features

one fiber port (P1) and one RS-422/485 capable serial

port (P2). Depending on the model, the serial port is

available either as a DB-9 female connector or as a

terminal block for field wiring. Please refer to Fig. 1a, Fig.

1b and the Pin-Out Signal Assignment Table for connector

pin-out assignment.

Fig. 1a DB-9 Connector Pin-Out Assignment

Fig. 1b Terminal Block Pin-Out Assignment

DIP-SWITCH SETTINGS:

Front-Panel DIP-Switches

Fig. 2 Front-Panel DIP-Switches

SW1: Normal and Fiber Loop-Back “Norm - FLB”

DIP-Switch:

When the Normal and Fiber Loop-Back “Norm - FLB”

DIP-Switch is in the normal mode “Norm” position (factory

default), the Fiber Loop-Back is disabled. Setting this

DIP-Switch to the “FLB” position on the RS422/485 at

either end of the fiber segment will enable the Fiber Loop-

Back test. When Fiber Loop-Back is enabled, the local

RS422/485 with the DIP-Switch in “FLB” position is the

master, and the remote RS422/485 with the DIP-Switch in

“Norm” position is the slave. The “Tst” LED on the master

will blink rapidly (10 times per second) and the “Tst” LED

on the slave will blink slowly (once per second) if the fiber

segment passes the Loop-Back test. If the fiber segment

fails the Loop-Back test, the “Tst” LED will remain solid on

the master unit.

Note that the Fiber Loop-back test does not interfere

with serial conversion and signal transmission.

Note that if both RS422/485 on the ends of a fiber

segment are set to the “FLB” position during the

Loop-back test, then both RS422/485 would still

display valid master mode results.

SW2: Serial “DCE - DTE” DIP-Switch:

When the “DCE - DTE” DIP-Switch is in the “DCE” position

(factory default), the RS422/485 is configured to connect

to Data Communications Equipment such as a modem or

printer. Setting this DIP-Switch to the “DTE” position

configures the RS422/485 to connect to Data Terminal

Equipment such as a computer or controller. Please refer

to the PORT STRUCTURE section of this manual for

more details.

Note that the “DCE - DTE” DIP-Switch is disabled if

the RS422/485 is in Half-Duplex mode or in Multi-

point mode.

Board-Mounted DIP-Switches:

Fig. 3 Board-Mounted DIP-Switches

12345678

FDX / HDX

RSV

NORM/MP

BAUD 0

BAUD 1

BAUD 2

BAUD 3

Baud Rate Selection

(See Table on Page 6)

Full or Half-Duplex

OFF ON

Point-to-Point or

Multi-Point Full-Duplex

Reserved

Fig. 4 Bank 1 DIP-Switch Description

Bank1 SW1 through SW4: Baud Rate Selection for

RS-485 “BAUD” DIP-Switches:

Bank 1 “BAUD” DIP-Switches 1 through 4 configure the

baud rate when the RS422/485 is operating in Half-Duplex

mode or in Multi-point Full-Duplex mode. These

DIP-Switches are deactivated when the RS422/485 is

operating in point-to-point Full-Duplex RS-422 Mode.

Please see the Baud Rate Configuration Table for details.

Page 2 Page 3 Page 4 Page 5

Bank1 SW5: Full/Half-Duplex “FDX/HDX” DIP-Switch:

When the Full/Half-Duplex selection DIP-Switch is in the

LEFT “FDX” position (factory default), the RS422/485

operates in serial Full-Duplex mode. Configuring the

DIP-Switch to the RIGHT “HDX” position enables serial

Half-Duplex mode, often used by the RS-485 protocol.

When the RS422/485 is in Half-Duplex mode, the point-

to-point/Multi-point DIP-Switch has no effect. Configure

the Half-Duplex Baud rate with Bank 1 DIP-Switches 1

through 4.

Bank1 SW6 and SW7: “RSV” DIP-Switches:

DIP-Switches 6 and 7 in Bank 1 are reserved for factory

use and must be kept in the LEFT position.

Bank1 SW8: Full-Duplex Normal/Multi-Point

“NORM/MP” DIP-Switches:

This DIP-Switch has no affect if the RS422/485 is in

Half-Duplex mode. When this DIP-Switch is in the LEFT

Page 6

Port 1 (P1)

Port 2 (P2)

iConverter RS422/485 DB-9 Models

Fiber Type /

Dual Fiber [DF] or

Single-Fiber [SF] /

Wavelength

Distance

Fiber Connector Types

ST SC MT-RJ LC

MM/DF/1310nm 5km 8780-0 8782-0 8784-0 8786-0

SM/DF/1310nm 30km 8781-1 8783-1 8785-1 8787-1

SM/DF/1310nm 60km 8781-2 8783-2 - 8787-2

SM/DF/1550nm 120km - 8783-3 - 8787-3

iConverter RS422/485 Single-Fiber Models

SM/SF/

Tx 1310/Rx 1550

20km - 8790-1 --

SM/SF

Tx 1550/Rx 1310

20km - 8791-1 --

SM/SF/

Tx 1310/Rx 1550

40km - 8790-2 --

SM/SF

Tx 1550/Rx 1310

40km - 8791-2 --

For wide temperature (-40 to 60

C), add a "W" to the end of the model

number. Consult factory for extended temperature (-40 to 75

C) models.

When using single-fiber (SF) media converter models, the Tx

wavelength on one end has to match the Rx wavelength on the other.

When ordering module with terminal block serial port, append 'T'

before the dash '-' in the model number. Examples: 8780T-0, 8783T-3

Page 1

Pin-Out Signal Assignment Table

No.

Full-Duplex Full-Duplex Half-Duplex

Normal (Point-to-Point) Multi-Point Multi-Point

Signal DTE DCE - -

1 Ground - - Reserved Ground

2 RTS+ OUT IN Reserved Reserved

3 RTS- OUT IN Reserved Reserved

4 TXD+ OUT IN TXD+ (IN) DATA+

5 TXD- OUT IN TXD- (IN) DATA

6 CTS+ IN OUT Reserved Reserved

7 CTS- IN OUT Reserved Reserved

8 RXD+ IN OUT RXD+ (OUT) Reserved

9 RXD- IN OUT RXD- (OUT) Reserved

Baud Rate DIP-Switch Configuration Table

Baud Rate SW1 SW2 SW3 SW4

110

LLLL

300

RL L L

1200

LRL L

2400

RR L L

4800

LLRL

9600

RL RL

19.2K

LRRL

38.4K

RRR L

57.6K

LLLR

115K

RL L R

230K

LRLR

460K

RR L R

921K

LLRR

921K

RL RR

921K

LRRR

921K

RRRR

L designates the LEFT (OFF) position of the DIP-switch

R designates the RIGHT (ON) position of the DIP-switch

“NORM” position (factory default), the RS422/485 operates

in a point-to-point Full-Duplex mode, commonly used by

the RS-422 protocol. Baud rate selection is automatic in

this mode.

When this DIP-Switch is in the RIGHT “MP” position, the

RS422/485 operates in a Multi-point Full-Duplex mode,

often referred as Full-Duplex RS-485 or Multi-point RS-422.

In this mode, Baud rate must be manually configured

via Bank 1 “BAUD” DIP-Switches 1 through 4. Please

see the Baud Rate Configuration Table for details.

Board-Mounted Bank 2 DIP-Switches:

Note that Bank 2 DIP-Switches are not accessible via

software control, and must be configured physically.

Fig. 5 Bank 2 DIP-Switch Description

Bank2 SW1 and SW2: Head Termination “HEAD”

DIP-Switches:

Bank 2 Head Termination “HEAD” DIP-Switches 1 and 2

configure the RS422/485’s termination setting by

providing termination on the data line. When these

DIP-Switches are in the LEFT “

” position (factory default),

no termination is provided. Setting these DIP-Switches to

the RIGHT “HEAD” position provides pull-up and pull-

down on the data lines. See the Termination Table on page

8 and Fig. 6 for details.

Note that both of the Head Termination “HEAD”

DIP-Switches on a RS422/485 need to be set to the

same position, failure to do so will result in

unpredictable behavior.

Bank2 SW3 through SW6: Mid Termination

“MID/H-T” DIP-Switches:

Bank 2 Mid Termination “MID/H-T” DIP-Switches 3 through

6 configure the RS422/485’s termination setting by

providing parallel terminations. When these DIP-Switches

are in the “MID” position (factory default), no termination

is provided. Setting these DIP-Switches to the “H-T”

position provides parallel termination. See the Termination

Table and Fig. 6 for details.

Note that all of the Mid Termination “MID/H-T”

DIP-Switches on a RS422/485 need to be set to the

same position, failure to do so will result in

unpredictable behavior.

Fig. 6a Head and Tail Termination Application

iConverter

by Omn itron Systems Tecnology, Inc.

iConverter

by Omn itron Systems Tecnology, Inc.

iConve rter

Fiber

Slave

“TAIL”

RS422/485

“MID”

RS-485

Master

“HEAD”

RS422/485

“HEAD”

Slave

“TAIL”

Fig. 6b Mid and Head Termination Application

Warning

The operating description in this Instruction Manual is for

use by qualified personnel only. To avoid electrical shock,

do not perform any servicing of this unit other than that

contained in the operating instructions, unless you are

qualified and certified to do so by Omnitron Systems

Technology, Inc.

Warranty

This product is warranted to the original purchaser against

defects in material and workmanship for a period of

TWO YEARS from the date of shipment. A LIFETIME

warranty may be obtained by the original purchaser by

REGISTERING this product with Omnitron within 90 days

from the date of shipment. TO REGISTER, COMPLETE

AND MAIL OR FAX THE ENCLOSED REGISTRATION

FORM TO THE INDICATED ADDRESS. Or you may

systems.com. During the warranty period, Omnitron will,

at its option, repair or replace a product which is proven

to be defective.

For warranty service, the product must be sent to an

Omnitron designated facility, at Buyer’s expense.

Omnitron will pay the shipping charge to return the product

to Buyer’s designated US address using Omnitron’s

standard shipping method.

Limitation of Warranty

The foregoing warranty shall not apply to defects resulting

from improper or inadequate use and/or maintenance of

the equipment by Buyer, Buyer-supplied equipment,

Buyer-supplied interfacing, unauthorized modifications

or tampering with equipment (including removal of

equipment cover by personnel not specifically authorized

and certified by Omnitron), or misuse, or operating outside

the environmental specification of the product (including

but not limited to voltage, ambient temperature, radiation,

unusual dust, etc.), or improper site preparation or

maintenance.

No other warranty is expressed or implied. Omnitron

specifically disclaims the implied warranties of

merchantability and fitness for any particular purpose.

Exclusive Remedies

The remedies provided herein are the Buyer’s sole and

exclusive remedies. Omnitron shall not be liable for any

direct, indirect, special, incidental, or consequential

damages, whether based on contract, tort, or any legal

theory.

Form: 040-08780-001F 12/08

Page 7 Page 8

Page 9 Page 10 Page 11 Page 12

TECHNICAL SUPPORT:

For help with this product, contact our Technical Support:

Phone: (949) 250-6510

Fax: (949) 250-6514

Address: Omnitron Systems Technology, Inc.

140 Technology Dr., #500

Irvine, CA 92618 USA

E-mail: [email protected]

URL: www.omnitron-systems.com

iConverter

by Omnitron Systems Tecn ology, Inc.

iConverter

iConv er ter

by Omnitron Systems Tec no logy, Inc .

iConverter

Fiber

RS422/485

“TAIL”

Master

“HEAD”

Slave

“TAIL”

RS422/485

“HEAD”

RS-485

RS422/485 SPECIFICATIONS:MOUNTING AND CABLE ATTACHMENT:

iConverter modules are hot-swappable and can be installed

into any chassis in the

iConverter family.

1. After configuring the DIP-Switches, carefully slide the

iConverter module into the installation slot, aligning

the module with the installation guides. Ensure that

the module is firmly seated against the Backplane.

2. Secure the module by fastening the panel thumb screw

(attached to the module) to the chassis front.

3. Attach the serial ports via a DB-9 serial cable (or an open-

end serial cable) to a serial RS-422 or RS-485 device.

4. Attach the fiber port via an appropriate multimode or

single-mode fiber cable to a 100BASE-FX Fast Ethernet

device. The

iConverter transmit (Tx) must attach to

the receive side on the other device; the receive (Rx)

must attach to the transmit side.

5. When using single-fiber (SF) media converter models,

the Tx wavelength on one end has to match the Rx

wavelength on the other. Note that based on this

guideline, the SF media converter models must be

used in pairs, such as the 8790-1 matched with the

8791-1.

LED Function

"Legend"

Color Off State On States

Power "Pwr" Amber No Power Module has power

Fiber Loop-

back Test "Tst"

Green

Normal

Mode

Solid:

Master mode Tx

pattern sent, but no Rx

received

10 Hz (Blinking 10x per

second): Master mode,

Tx pattern sent, and Rx

pattern received

1 Hz (Blinking once per

second): Slave mode,

Rx pattern received

Fiber Link and

Activities "Act"

Green

No Fiber

Link

Solid:

Fiber Link

Active

Blinking:

Fiber Data

Transmission

"DTE" Mode Green

DTE mode

not selected

DTE mode selected

"DCE" Mode Green

DCE mode

not selected

DCE mode selected

Serial

Activities "Act"

Green

No serial

data

Serial data received

Termination Table

Full-Duplex Mode Half-Duplex Mode

Switch No. Head Tail Mid Head Tail Mid

OFF OFF OFF ON OFF OFF

ON ON OFF ON ON OFF

Model Type RS422/485

Protocols

Asynchronous Serial RS-422,

Serial RS-485

Copper

Connectors

DB-9 Female or

Terminal B lock

Fiber

Connectors

ST, SC, MT-RJ, LC

Controls

DTE/DCE, Fiber Loop-Back,

Baud Rate, Termination

LED Displays

Power, Test, Fiber Lnk/Act,

DTE, DCE, Serial Act

Dimensions

W:0.85" x D:4.5" x H:2.8"

Weight

8 oz.

Compliance

UL, CE, FCC Class A

Power

Requirement

0.5A @ 3.3VDC (typical)

Temperature

Standard: 0 to 50º C

Wide: -40 to 60º C

Storage: -40 to 80º C

Humidity

5 to 95% (non-condensing)

Altitude

-100m to 4000m

MTBF (hrs)

850,000

RS422/485 LED INDICATORS:

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Summary of Contents

Page 1 - 12345678

iConverter® RS422/485Serial RS-422 and RS-485 toFiber Media Converter User ManualOVERVIEW:The Omnitron iConverter RS422/485 is a manageableserial RS-4

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