Omnitron Systems Technology Serial RS-422 and RS-485 to Fiber Media Converter RS422/485 User Manual

Omnitron Systems Technology TV Accessories

Advertising
background image

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

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

Š

-

-

SM/SF

Tx 1550/Rx 1310

20km

-

8791-1

Š

-

-

SM/SF/

Tx 1310/Rx 1550

40km

-

8790-2

Š

-

-

SM/SF

Tx 1550/Rx 1310

40km

-

8791-2

Š

-

-

For wide temperature (-40 to 60

o

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

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

o

C) models.

ŠWhen 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

PIN
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

L

L

L

L

300

R

L

L

L

1200

L

R

L

L

2400

R

R

L

L

4800

L

L

R

L

9600

R

L

R

L

19.2K

L

R

R

L

38.4K

R

R

R

L

57.6K

L

L

L

R

115K

R

L

L

R

230K

L

R

L

R

460K

R

R

L

R

921K

L

L

R

R

921K

R

L

R

R

921K

L

R

R

R

921K

R

R

R

R

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

iC o n v e r te r

b y Om n itro n S y s te ms T e c n o lo g y

, In c .

T M

iCo

nver

te

r

iC o n v e r te r

b y Om n itro n S y s te ms T e c n o lo g y

, In c .

T M

iCo

nve

rte

r

Fiber

Slave

“TAIL”

RS422/485

“MID”

RS-485

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
register your product on the Internet at www.omnitron-
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

`

iC o n v e r te r

b y Om n itro n S y s te m s T e c n o lo g y

, In c .

T M

iCo

nve

rte

r

iC o n v e r te r

b y O mn itro n S y s te ms T e c n o lo g y

, In c .

T M

iCo

nve

rt

er

Fiber

RS422/485

“TAIL”

Master

“HEAD”

Slave

“TAIL”

RS422/485

“HEAD”

RS-485

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

1

OFF

OFF

OFF

ON

OFF

OFF

2

OFF

OFF

OFF

ON

OFF

OFF

3

ON

ON

OFF

ON

ON

OFF

4

ON

ON

OFF

ON

ON

OFF

5

ON

ON

OFF

ON

ON

OFF

6

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 Block

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:

Advertising