Westermo ODW-632 User Manual

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User Guide

6650-2253

ODW-632

Fibre Optic Modem

Westermo Teleindustri AB

Industrial Converter

RS-485 to Fibre Optic Link

Repeater, line and redundant ring

www.westermo.com

Legal information

The contents of this document are provided “as is”. Except as required by applicable law, no warranties of any kind, either express or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose, are made in relation to the accuracy and reliability or contents of this document. Westermo reserves the right to revise this document or withdraw it at any time without prior notice.

Under no circumstances shall Westermo be responsible for any loss of data or income or any special, incidental, and consequential or indirect damages howsoever caused.

More information about Westermo can be found at the following Internet address:

http://www.westermo.com

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Safety

Before installation:

Read this manual completely and gather all information on the unit. Make sure that you understand it fully. Check that your application does not exceed the safe operating specifications for this unit.

This unit should only be installed by qualified personnel. This unit should be built-in to an apparatus cabinet, or similar, where access is

restricted to service personnel only. The power supply wiring must be sufficiently fused, and if necessary it must be

possible to disconnect manually from the power supply. Ensure compliance to national installation regulations.

This unit uses convection cooling. To avoid obstructing the airflow around the unit, follow the spacing recommendations (see Cooling section).

Before mounting, using or removing this unit:

Prevent access to hazardous voltages by disconnecting the unit from the power supply. Warning! Do not open a connected unit. Hazardous voltages may occur within this unit when connected to a power supply.

Class 1 Laser Product

This unit is designed to meet the Class 1 Laser regulations. However, the user is

warned not to look directly into fibre optical port or any connected fibre.

Care recommendations

Follow the care recommendations below to maintain full operation of the unit and to fulfil the warranty obligations.

This unit must not be operated with covers or lids removed. Do not attempt to disassemble the unit. There are no user serviceable parts inside. Do not drop, knock or shake the unit. Rough handling beyond the specification may cause

damage to internal circuit boards. Do not use harsh chemicals, cleaning solvents or strong detergents to clean the unit. Do not paint the unit. Paint can clog the unit and prevent proper operation. Do not expose the unit to any kind of liquids (rain, beverages, etc).

The unit is not waterproof. Keep the unit within the specified humidity levels. Do not use or store the unit in dusty, dirty areas. Connectors as well as other

mechanical parts may be damaged. If the unit is not working properly, contact the place of purchase, nearest Westermo

distributor office, or Westermo Tech support. Fibre connectors are supplied with plugs to avoid contamination inside the optical port. The plug should be fitted when no optical fibre is inserted in the connector, e.g. during

storage, service or transportation.

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Note. Fibre Optic Handling

Fibre optic equipment requires careful handling as the fibre components are very sensitive to dust and dirt. If the fibre is disconnected from the modem, the protective plug on the transmitter/receiver must be replaced. The protective plug must be kept on during transportation. The fibre optic cable must also be protected in the same way.

If this recommendation is not followed, it can jeopardise the warranty.

Cleaning of the optical connectors

In the event of contamination, the optical connectors should be cleaned by using forced nitrogen and some kind of cleaning stick.

Recommended cleaning fluids:

• Methyl-, ethyl-, isopropyl- or isobutyl-alcohol

• Hexane

• Naphtha

Maintenance

No maintenance is required, as long as the unit is used as intended within the specified conditions.

Agency approvals and standards compliance

Type Approval / Compliance

EMC EN 61000-6-1, Immunity residential environments

EN 61000-6-2, Immunity industrial environments

EN 61000-6-3, Emission residential environments

EN 61000-6-4, Emission industrial environments

EN 55022, Emission IT equipment, class A

EN 55024, Immunity IT equipment

FCC part 15 Class A

EN 50121-4, Railway signalling and telecommunications apparatus

IEC 62236-4, Railway signalling and telecommunications apparatus

Safety EN 60950-1, IT equipment

FCC Part 15.105 Notice:

EN 55022 Notice:

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

This is a class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

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Declaration of Conformity, ODW-632

Westerm o Teleindustri AB

Declaration of conformity

Org.nr/

Postadress/Postal address

Tel.

Telefax

Postgiro

Bankgiro Corp. identity number Registered office

S-640 40 Stora Sundby 016-428000 016-428001 52 72 79-4 5671-5550 556361-2604 Eskilstuna

Sweden Int+46 16428000 Int+46 16428001

The manufacturer

Westermo Teleindustri AB SE-640 40 Stora Sundby, Sweden

Herewith declares that the product(s)

Type of product Model Art no Industrial fiberoptic repeaters/media

converters

ODW-600 Series

3650-0xxx

is in conformity with the following EC directive(s). No Short name 2004/108/EC Electromagnetic Compatibility (EMC)

References of standards applied for this EC declaration of conformity. No Title Issu e EN 50121-4 Railway applications – Electromagnetic compatibility

– Emission and immunity of the signalling and telecommunications apparatus

2006

EN 55022 Information technology equipment - Emission 2006 +A1:2007 EN 55024 Information technology equipment - Immunity 1998 +A1:2001

+A2:2003

EN 61000-6-1 Electromagnetic compatibility – Immunity for

residential environments

2007

EN 61000-6-2 Electromagnetic compatibility – Immunity for

industrial environments

2005

EN 61000-6-3 Electromagnetic compatibility – Emission for

residential environments

2007

EN 61000-6-4 Electromagnetic compatibility – Emission for

industrial environments

2007

The last two digits of the year in which the CE marking was affixed: 09

Pierre Öberg Technical Manager 29th September 2009

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Type tests and environmental conditions

Electromagnetic Compatibility

Phenomena Test Description Level

ESD EN 61000-4-2 Enclosure contact ± 6 kV

RF field AM modulated IEC 61000-4-3 Enclosure 10 V/m 80% AM (1 kHz), 80 – 800 MHz

RF field 900 MHz ENV 50204 Enclosure 20 V/m pulse modulated 200 Hz, 900 ± 5 MHz Fast transient EN 61000-4-4 Signal ports ± 2 kV

Surge EN 61000-4-5 Signal ports unbalanced ± 2 kV line to earth, ± 2 kV line to line

RF conducted EN 61000-4-6 Signal ports 10 V 80% AM (1 kHz), 0.15 – 80 MHz

Pulse Magnetic field EN 61000-4-9 Enclosure 300 A/m, 6.4 / 16 µs pulse Voltage dips

and interruption

Mains freq. 50 Hz EN 61000-4-16 Signal ports 100 V 50 Hz line to earth Mains freq. 50 Hz SS 436 15 03 Signal ports 250 V 50 Hz line to line Radiated emission EN 55022 Enclosure Class B

Conducted emission EN 55022 AC power ports Class B

Dielectric strength EN 60950 Signal port to all other

Environmental

Temperature Operating –40 to +60°C

Humidity Operating 5 to 95% relative humidity

Altitude Operating 2 000 m / 70 kPa Service life Operating 10 year Vibration IEC 60068-2-6 Operating 7.5 mm, 5 – 8 Hz

Shock IEC 60068-2-27 Operating 15 g, 11 ms

Packaging

Enclosure, ODW-632 UL 94 PC / ABS Flammability class V-1 Dimension W x H x D 35 x 121 x 119 mm Weight 0.26 kg Degree of protection IP 21 Cooling IEC 529 Enclosure Convection Mounting Horizontal on 35 mm DIN-rail

EN 61000-4-11 AC power ports 10 & 5 000 ms, interruption

FCC part 15 Class A

FCC part 15 AC power ports Class B EN 55022 DC power ports Class A

Enclosure air ± 8 kV

20 V/m 80% AM (1 kHz), 800 – 1000 MHz 20 V/m 80% AM (1 kHz), 1400 – 2700 MHz

Power ports ± 2 kV

Signal ports balanced ± 2 kV line to earth, ± 1 kV line to line Power ports ± 2 kV line to earth, ± 2 kV line to line

Power ports 10 V 80% AM (1 kHz), 0.15 – 80 MHz

200 ms, 40% residual voltage 500 ms, 70% residual voltage

isolated ports Power port to other

isolated ports

Storage & Transport –40 to +70°C Maximum surface

temperature

Storage & Transport 5 to 95% relative humidity

2 kVrms 50 Hz 1min

3 kVrms 50 Hz 1min 2 kVrms 50 Hz 1min (@ rated power < 60V)

135ºC (temperature class T4)

2 g, 8 – 500 Hz

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Description

This ODW-632 is a fibre optic modem used for redundant ring and multidrop applications. It acts as a converter between a serial port and a fibre optical link. The maximum distance of the fibre link depends on selected transceiver and fibre type. Distance up to 80 km (50 miles) is available.

The ODW-632 is designed for harsh out-door usage, in industrial, road or railway installations.

Data will be sent transparently over the fibre optical link via the serial interface RS-422/485.

Converter serial interface – optical fibre. …

Redundant ring alternatively multidrop communication via fibre optical network. …

Serial interface Asynchronous or Synchronous mode. …

LC-2 Multimode LC connectors, 5 km (3.1 miles). …

LC-15 Singlemode LC connectors, 15 km (9.3 miles). …

LC-40 Singlemode LC connectors, 40 km (24.9 miles). …

LC-80 Singlemode LC connectors, 80 km (50 miles). …

Bi-di Multimode LC connectors, 5 km (3.1miles). …

Bi-di Singlemode LC connectors, 20 km (12.5 miles). …

Bi-di Singlemode LC connectors, 40 km (24.9 miles). …

Bi-di Singlemode LC connectors, 60 km (37.3 miles). …

Design for harsh environments. …

Re-timing. …

Redundant DC or AC power supply, 2 kVAC galvanic isolated to other ports. …

Status interface for fault indication. …

Small Form Factor Pluggable (SFP) transceivers. …

4 positions detachable screw terminal. …

RS-485 interface. …

Data rate up to 1.5 Mbit/s. …

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STATUS

LED’s

Switches

CH 2

SFP Fibre transceive

CH 1

SFP Fibre transceive

Internal Electronics

ODW- 632

COM

+VA

O V

+VB

POWER

T/R

RS -485

+5V 0V

O C

V P

Functional description

OVP Over Voltage Protection

OCP Over Current Protection

Converter serial interface – optical fibre

ODW-632 is a fibre optic modem that converts between electrical RS-485 and a fibre optical link.

ODW-632 can also be used to convert from RS-232 to RS-485 by using a ODW-622 in the same link as ODW-632.

Repeater – optical fibre links

ODW-632 is a fibre optic repeater that repeats received data from one fibre link out to the other link. This is useful e.g. for long distance communication, where electromagnetic interference may occur or when isolation of the electrical network is needed. The maximum optical fibre distance depends on selected fibre transceiver and fibre type. Distances up to 80 km (50 miles) are available.

Data rate up to 1.5 Mbit/s

ODW-632 converts data using rates from 300 bit/s up to 1.5 Mbit/s. Retiming of the data ensures that the correct signal form is transmitted from the ODW-632 converter.

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Designed for harsh environments, such as industrial,

TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX

Master, unit Slave, unit

CH 2 CH 1 CH 2 CH 1 CH 2 CH 1 CH 2 CH 1

Ring A Ring B

PLC PLC

road and railway applications

ODW-632 complies with standards for industrial environments and railway signalling and telecommunications apparatus. Additionally, the wide climatic range of the ODW-632 allows it to be installed in out-door cabinets without any additional measures, such as heating, etc.

Redundant ring via fibre optical network

Under normal operation the serial data is sent over ring A. Should a fault be detected on the fibre ring then the data will be carried on rings A and B.

Ring A

Ring A Ring A Ring A

Ring B Ring B Ring B

Ring B

Note! Ring A start up at TX (channel 1) and ring B ends up at RX (channel 1).

… Normal operation, data exchange between serial master and slave.

• ODW-632 unit connected to the PLC-master receives serial data at the electrical port, it converts and transfers this master frame via the fibre ring A. At this unit the repeating of transferred frames is stopped until this transferred master frame has returned via ring A. This master frame will be repeated through fibre ring A by all the other units. Each of these units will also convert the master frame to serial data and send it via the electrical port.

• ODW-632 unit to which the addressed Slave is connected, receives serial data from the Slave. This unit converts slave data and transfers the slave frame via ring A. The repeating of transferred frames is stopped until this transferred slave frame has returned via ring A.

• When the “first” ODW-632 unit receives the master frame (the same frame that has been transmitted by this unit), or after a timeout, data conversion at will be allowed again. The received slave frame will be converted and transmitted at the electrical port.

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• When the ODW-632 unit connected to the PLC slave receives the slave frame (the same frame that has been transmitted by this unit), or after a timeout, data conversion at this unit will be allowed again.

… Behaviour under faulty conditions

• Elapsed time from any kind of failure at the fibre optic network until data exchange after a corrective action depends on total length of fibre ring. This is typically 40–500 ms (local unit). During that time, the transferred data frames should be seen as corrupted or missed.

Note: Be ware of that full duplex will not work in redundant ring.

Failure Indications

Fibre interruption ring A, TX On: FL R Fibre interruption ring A, RX On: FL L Fibre interruption ring A, RX & TX On FL L Fibre interruption ring B, TX On: FL R Fibre interruption ring B, RX On: FL L Fibre interruption ring B, RX & TX On: FL L Fibre interruption ring A and B (e.g. CH1 or CH2 both TX & RX) On: FL L &/or FL R Low power on the receiver (May indicate bad fibre)

* Regarding functionality see chapter “multidrop application”

FLL flicker

… Recovery from faulty status

• ODW-632 will automatically recover to the previous operating status when a failure disappears. This involves recovery from multi drop application to Redundant ring A/B when ring is up and running and recovery from Ring B to Redundant ring A when the ring is up and running.

• The time to recover from the failure status depends on total length of fibre ring. This is typically 40–500 ms. During that time the transferred data frames should be seen as corrupted or missed.

Serial data transfer can be set in two modes: Synchronous mode: Transfer special protocols such as Manchester coded protocol.

See special switch settings on page 25. Asynchronous mode: Data will be sent over the fibre optic network when a startbit has been identified. The data rate and number of data bits should be set by DIP-switches.

the turning time (from sending serial RS-485 data until changing to receive mode) is automatically calculated from the DIP-switch setting.

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Multidrop via fibre optical network

TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX

CH 2 CH 1 CH 2 CH 1

Master, unit

Slave, unit

CH 2 CH 1 CH 2 CH 1

PLC PLC

The data is transferred via the fibre optic network to the serial ports of all units. If ODW-632 is connected to two optical fibre links (mid unit) converted data will be transmitted in both directions, via both CH 1 and CH 2. With only one optical fibre link (end unit) converted data will be transmitted in one direction, via CH 1 only. Data received from one ODW-632 optical fibre port will be repeated through the other optical fibre port and it will also convert the frame to serial data.

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Optical fibre link functionality and status indication

At power on, all LED’s will be active during an initiation sequence followed by an automatic initiation of the optical fibre links. The alarm will be set until the fibre optical links are in operation and ready to transfer serial data.

Data frames are transferred over the fibre optic links as long as the links are in operation and the data rate has been detected.

When any of the fibre optic links is out of operation, this will be indicated by a local alarm, and this will set the alarm output. It will also send a remote alarm via the other link, if possible. When the link returns to operations mode, the alarm will reset automatically.

RS-485 interface

A 4 position detachable screw terminal that can handle full duplex data rates up to

1.5 Mbit/s and can be set to either 2- or 4-wire RS-485 system.

When 4-wire RS-485 is selected, the terminals T/R+ and T/R– will always be set to transmit and terminals R+ and R– will always receive data. Manchester coded protocol can be transferred with Synchronous mode.

Redundant power supply, galvanic isolated (2 kVAC) to other ports

ODW-632 should be supplied with safety extra low voltage (SELV). It is designed to operate permanently over a wide input range and provided with two independent inputs, allowing redundancy should either supply fail.

Single- or multimode LC fibre connectors

ODW-632 use Small Form Factor Pluggable (SFP) transceivers that are in compliance with the Multi-Sourcing Agreement (MSA). This means that a wide range of different fibre transceivers and connectors can be used.

Status interface

This port enables supervision of fibre optic link status by a relay with both normally open and closed contacts.

The status will be set if:

• Local or remote of fibre link errors exist.

• The unit is out of service, e.g. no power supply.

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System delay in an optical network

Data exchange between a serial master and slave via ODW-632 fibre optic link, will be delayed due to the length of the optical fibre and the signal processing within the ODW-

632. The signal processing delay is dependent on the data rate, and the fibre delay is dependent on the total length of the optical fibre.

There is no limitation of the total length of optical fibre for Multi-drop applications. In Redundant ring applications the data transfer time in a ring is limited to 10 milliseconds. This means the total length of the optical fibre ring is about 2 000 km, excluding the 1 microsecond delay at each optical repeater unit.

The additional time resulting from the optical fibre and ODW-632 is the Overall system delay. The Redundant ring and Multidrop application Overall system delays differ, see below.

Item Functions Delay

1 Fibre:

Optical fibre length delay (typical)

2 Converter electrical to fibre:

Signal processing

3 Converter fibre to electrical:

Signal processing

Note t

… Redundant ring, one data exchange.

= 1 / Baud rate (Baud rate in bit/s)

bit

• The data exchange between master and slave via ODW-632 fibre optic link will run one direction through all units of the ring. The system delay is calculated by summing the following:

1. Fibre: The total optical fibre ring length delay.

2. Optical repeaters: The optical repeater delay x Number of optical repeaters (excluding the ODW-632 units connected to a master and addressed slave).

3. Converter electrical to fibre: Signal processing delay x 2 (ODW-632 units connected to serial master and addressed slave).

4. Converter fibre to electrical: Signal processing delay x 2 (ODW-632 units connected to a master and addressed slave).

5 ms/km

0.6 ms (synchronous mode) 1 t

+ 0.6 ms

Bit

(asynchronous mode)

0.6 ms

Multi drop, one data exchange.

• The data exchange between a master and slave via ODW-632 fibre optic link will run from the ODW-632 units connected to a master to the slave and the same way back to the master. The system delay is calculated by summing the following:

1. Fibre: The optical fibre length a master to addressed slave delay x 2.

2. Optical repeaters: The optical repeater delay * Number of optical repeaters

(excluding the ODW-632 units connected to a master and addressed slave) x 2.

3. Converter electrical to fibre: Signal processing delay x 2

(ODW-632 units connected to a master and addressed slave).

4. Converter fibre to electrical: Signal processing delay x 2

(ODW-632 units connected to a master and addressed slave).

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Example

• Redundant ring, one data exchange between master and one slave. One a master and 11 slaves with data rate 9600 bit/s dependent mode. 12 ODW-632 units with a total fibre length of 40 km. A data exchange between master and one slave.

1. Fibre: The total optical fibre ring length delay. 40 x 5 µs = 200 µs

2. Optical repeaters: The optical repeater delay x Number of optical repeaters (excluded the two units connected to PLC master and slave). 10 x 3.0 µs = 30 µs

3. Converter electrical to fibre: Signal processing delay x 2 (ODW-632 units connected to a master and addressed slave). (1 t

+ 0.6 µs) x 2 = (105 µs + 0.6 µs) x2 = 211 µs

bit

4. Converter fibre to electrical: Signal processing delay x 2 (units connected to PLC master and slave).

0.6 µs x 2 = 1.2 µs

5. The system delay is calculated by summing the delays in item 1 to 4 above: 200 µs + 30 µs + 211 µs + 1.2 µs = 442 µs

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Interface specifications

Power

Rated voltage ODW-632: 12 to 48 VDC and 24 VAC

Operating voltage ODW-632: 10 to 60 VDC and 20 to 30 VAC

Rated current 400 mA @ 12 V

Rated frequency ODW-632: DC and 48 to 62 Hz

Inrush current I²t 0.2 A²s Startup current* 1.0 Apeak Polarity Reverse polarity protected Redundant power input Yes Isolation to RS-422/485 and Status port Connection Detachable screw terminal Connector size 0.2 – 2.5 mm² (AWG 24 – 12) Shielded cable Not required

* External supply current capability for proper startup

RS-422/485

Electrical specification EIA RS-485, 2-wire or 4-wire twisted pair Data rate 300 bit/s – 1.5 Mbit/s Data format 9 – 12 bits Protocol Start-bit followed by 8-11 bits Retiming Yes Turning time (2-wire RS-485) Transmission range < 1200 m, depending on data rate and cable type (EIA RS-485) Settings 120 W termination and failsafe biasing 680 W Protection Installation Fault Tolerant (up to ±60 V) Isolation to Status and Power port Connection Detachable screw terminal Connector size 0.2 – 2.5 mm² (AWG 24 – 12) Shielded cable Not required

ODW-632 Ex: 12 to 48 VDC

ODW-632 Ex: 10 to 60 VDC

250 mA @ 24 V 100 mA @ 48 V

ODW-632 Ex: DC

One t

bit

= 1 / Baud rate (Baud rate in bit/s)

bit

Status

Port type Signal relay, changeover contacts Rated voltage Up to 48 VDC Operating voltage Up to 60 VDC Contact rating 500 mA @ 48 VDC Contact resistance < 50 mW Isolation to RS-422/485 and Power port Connection Detachable screw terminal Connector size 0.2 – 2.5 mm2 (AWG 24 – 12) Shielded cable Not required

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Optical Power Budget

The allowed link length is calculated from the optical power budget (OPB), the available optical power for a fibre-optic link, and the attenuation of the fibre, comprising losses due to in-line connectors, splices, optical switches and a margin for link ageing (typical 1.5 dB for 1300 nm).

The worst-case optical power budget (OPB) in dB for a fibre-optic link is determined by the difference between the transmitter’s output optical power (min) and the receiver input sensitivity (max).

FX (Fibre) SM-LC80 SM-LC40 SM-LC15 MM-LC2

Fibre connector LC duplex LC duplex LC duplex LC duplex Fibre type Singlemode

9/125 mm

Singlemode

9/125 mm

Singlemode

9/125 mm

Multimode,

62.5/125 and 50/125 mm

Wavelength 1550 nm 1310 nm 1310 nm 1310 nm Transmitter

–5/0 dBm** –5/0 dBm** –15/–8 dBm** –20/–14 dBm* Output optical power min/max Receiver

–34 dBm –34 dBm –31 dBm –31 dBm Input sensitivity, max Receiver

–5 dBm*** –3 dBm*** –8 dBm –8 dBm Input optical power, max Optical power budget,

29 dB 29 dB 16 dB 11 dB worst-case Transceiver type Small Form Factor Pluggable (SFP)

Multi-Sourcing Agreement (MSA) compliant

Laser class Class 1, IEC 825-1 Accessible Emission Limit (AEL)

FX (Fibre)

Bi-di

LC-60

Bi-di

LC-40

Bi-di

LC-20

Bi-di

MM LC-2

Fibre connector LC Simplex LC Simplex LC Simplex LC Simplex Fibre type Singlemode

9/125 µm

Singlemode 9/125 µm

Multimode

62.5/125 and

50/125 µm Wavelength nm, connector 1 Wavelength nm, connector 2

Transmitter

Tx 1310, rx 1550 Tx 1550, rx 1310

Tx1310, rx 1550 TX 1550, rx 1310

Tx 1310, rx

1550 Tx 1550,

rx 1310

–5/0 dBm ** –8/0 dBm ** -10/0 dBm ** –10/–8 dBm * Output optical power min/max Receiver

–34 dBm –34 dBm –28 dBm –28 dBm Input sensitivity, max Receiver

0 dBm*** 0 dBm*** 0 dBm –0 dBm Input optical power, max Optical power budget,

29 dB 26 dB 18 dB 18 dB worst-case Transceiver type Small Form Factor Pluggable (SFP)

Multi-Sourcing Agreement (MSA) compliant Laser class Class 1, IEC 825-1 Accessible Emission Limit (AEL)

* Output power is power coupled into a 62.5/125 mm multimode fibre ** Output power is power coupled into a 9/125 mm singlemode fibre *** The optical power should be reduced by at least 5 dB (SM-LC80 and Bi-di LC-60) or 3dB (SM-LC-40

and Bi-di LC-40) between the optical output and input.

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Location of Interface ports, LED’s and DIP-switches

ODW-632

LED Indicators(for details see page 22)

FX(Fibre)

(for details

see page 20)

DIP-switches accessible under lid (for details see page 23-25)

Status screw terminal

Position Direction* Description Product

1 NO Contact with C

when fibre optical links are in opera-

tion 2 C Common C 3 NC Open (no contact

with C) when fibre

optical links are in

operation

marking

RS-422/485 screw terminal

Position Direction* Description Product

1 In R+ (EIA RS-485 A’) R+

2 In R– (EIA RS-485 B’) R–

3 In/Out T+ (EIA RS-485 A) T/R+

4 In/Out T– (EIA RS-485 B) T/R–

marking

Power screw terminal

Position Direction* Description Product

marking

1 In Common voltage COM 2 In Voltage A +VA 3 In Voltage B +VB 4 In Common voltage COM

* Direction relative this unit

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LED indicators

LED Status Description

PWR

Power

RDR ON Redundant ring mode

CH 2 ON Fiber link at port CH 2 in operation.

CH 1 ON Fibre link at port CH 1 in operation.

Serial data Receive

Fibre link data Receive

FL R (Red)

Failure Link Remote

FL L (Red)

Failure Link Local

ON In service (power)

Flashing Fault condition

OFF Out of service

OFF Multidrop mode

Data can be transmitted

OFF Fiber link at port CH 2 out of operation

Data can be transmitted

OFF Fibre link at port CH 1 out of operation

Flashing Receive accepted data on the serial port.

Data will be transmitted to the fibre link

OFF –

Flashing Received data on the fibre link. This

frame is transmitted to the serial port.

OFF –

ON Remote fibre link failure. A fibre link is

out of operation at any other unit of the optical network

OFF All fibre links are in operation at all

other units in the fibre optical network

ON Local fibre link failure. This unit has

identified a fibre link failure

OFF Fibre link of this unit is in operation

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Configuration

All needed configurations and parameter settings are done by the DIP-switches, located under the top lid of the ODW-632.

S2S1

DIP-switch settings

Before DIP-switch settings:

Prevent damage to internal electronics from electrostatic discharges (ESD) by discharging your body to a grounding point (e.g. use of wrist strap)

Note: Disconnect power before DIP-switch settings.

S1 DIP-switch, asynchronous mode

1 2 3 4 5 6 7 8

RS-485 2-wire

RS-485 4-wire

300 bit/s

1 200 bit/s

2 400 bit/s

4 800 bit/s

9 600 bit/s

19.2 kbit/s

38.4 kbit/s

1 2 3 4 5 6 7 8

57.6 kbit/s

115.2 kbit/s

125 kbit/s

187.5 kbit/s

230.4 kbit/s

250 kbit/s

500 kbit/s

1.0 Mbit/s

1.5 Mbit/s

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S1 DIP-switch

1 2 3 4 5 6 7 8

9 bits data format

10 bits data format

1 2 3 4 5 6 7 8

11 bits data format

12 bits data format

S2 DIP-switch

1 2 3 4 5 6 7 8

Multidrop- end unit (Use channel 1 for end unit)

Multidrop, Mid unit .

Redundant ring

* SW 2:6 ON: The status relay only change status in the unit that is connected to the receive side.

1 2 3 4 5 6 7 8

Set status interface at local fibre link error*

Synchronous mode (see table on next page)

S3 DIP-switch

No termination and fail-safe

1 2 3 4

Termination with fail-safe (4-wire)

1 2 3 4

Termination with fail-safe (2-wire)

1 2 3 4

Factory settings

1 2 3 4 5 6 7 8

Supervision table when selecting data format

Start bit … … … … … … … …

7 bit … … … …

8 bit … … … …

Parity … … … …

1 stop bit … … … …

2 stop bit … … … …

Number of bit 9 10 10 10 11 11 11 12

1 2 3 4 5 6 7 8

1 2 3 4

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Synchronous mode ODW-632

RS-485 transmitter on-time after last data transition

SW:1 SW:2

1 2 3 4 5 6 7 8

Transmitter

1.6 ms

416 µs

208 µs

104 µs

52 µs

26 µs

13 µs

8.6 µs

4.3 µs

SW:1 SW:2

1 2 3 4 5 6 7 8

Transmitter

2.6 µs

2.1 µs

2 µs

1 µs

500 ns

300 ns

Example:

The data speed in a particular application is 250 kbit/s.

Calculate the maximum data transition time: 1/250 x 103 = 4 x 10

Using dip-switches 1:3 – 1:6, set the transmitter on time to the closest higher value, e.i. 4.3 µs.

= 4 µs.

1 2 3 4 5 6 7 8

4 µs

Note: Selecting a transmitter on time that is shorter than the data transition time will result in corrupted data.

6650-2253

RS-485 termination at system level

=Termination

DW-632

Slave unit Slave unit Slave unit

DW-632

Slave unit Slave unit Slave unit

Max 0.3 metre

=Termination

T/R+

T/R–

T/R+T/R– T/R+T/R– T/R+T/R–

R+

R–

T+

T–

R– R+ R+T– T– R– R+ T– T+T+T+ R–

The system should be installed in according to the RS-485 specification. A system should always form a bus structure where the termination is at the end points of the bus. See diagrams for details of how this is done with RS-485 2-wire and 4-wire.

6650-2253

Mounting

CLICK!

This unit should be mounted on 35 mm DIN-rail, which is horizontally mounted inside an apparatus cabinet, or similar.

Snap on mounting, see figure.

Cooling

This unit uses convection cooling. To avoid obstructing the airflow around the unit, use the following spacing rules. Minimum spacing 25 mm (1.0 inch) above /below and 10 mm (0.4 inches) left /right the unit. Spacing is recommended for the use of unit in full operating temperature range and service life.

10 mm *

(0.4 inches)

25 mm

* Spacing (left/right) recommended for

full operating temperature range

Removal

Press down the black support at the top of the unit. See figure.

25 mm

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Start up guide, redundant ring application

Ring A Ring B

TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX

CH 2 CH 1 CH 2 CH 1 CH 2 CH 1 CH 2 CH 1

PLC

Slave

PLC

Master

PLC

Slave

PLC

Slave

Follow the steps below to get the unit up and running in a simple application.

Ring A

Ring B

Prepare the master units

Configure network, with master and slaves. Check that it is running correctly with the … electrical serial network. Prepare the fibre optical network.

Redundant ring. Set switch S2:1 and 3 to ON and all others to OFF, at all units. … (If the status interface should be local, set S2:6 to ON)

Set present data rate with S1 …

Connect the fibre links between the units. …

Connect the power supply to all units. …

• The Fibre links should be in operation, indicated by active CH 1 and CH 2 LED’s.

Connect each of the slaves to the port of corresponding ODW-632. …

Connect the master to the port of one ODW-632. …

The Redundant ring application is up and running. …

6650-2253

Multidrop application

TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX

CH 2 CH 1 CH 2 CH 1 CH 2 CH 1 CH 2 CH 1

PLC

Slave

PLC

Master

PLC

Slave

PLC

Slave

Follow the steps below to get the unit up and running in a simple application.

Prepare the units

Configure the network, with master and slaves. Check that it is running correctly with … the electrical serial network. Prepare the fibre optical network

Multidrop, mid units (CH 1 & CH 2). Set switch S2:1 and 2 to ON. …

Multidrop, end units (CH 1 only). All switches should be set to OFF if it is … protocol independent and Switch S2: 1 to ON if it is protocol dependent.

Connect the fibre links between the units. …

Connect the power supply to all units. …

• The Fibre links should be in operation, indicated by active CH 1 and CH 2 LED’s.

Connect each of the slaves to the serial port of the corresponding ODW-632. …

Connect the master to the port of one ODW-632 …

The Multidrop application is up and running. …

Note! ODW-621 or ODW-631 can be used as end units.

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Start up guide

Note: With Bi-di fibre it is necessary to have one 1310 nm in one end

and 1550 nm in the other end.

• Bi-di 1310 nm will transmit with 1310 nm and resceive with 1550 nm.

• Bi-di 1550 nm will transmitt with 1550 nm and resceive with 1310 nm.

Redundant ring with Bi-di transceivers

Unit 1 Unit 2 Unit 3

CH2 Bi-di 1550 nm Bi-di 1550 nm Bi-di 1550 nm

CH1 Bi-di 1310 nm Bi-di 1310 nm Bi-di 1310 nm

Point-to-point with Bi-di transceivers

Unit 1 Unit 2

CH1 Bi-di 1310 nm Bi-di 1550 nm

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Multidrop with Bi-di transceivers

End unit 1 Unit 2 End unit 3

CH2 – Bi-di 1550 nm –

CH1 Bi-di 1310 nm Bi-di 1310 nm Bi-di 1550 nm

Hints

If the distance is too long, it may be necessary to adjust the timing of the sender of the frame to allow acknowledgement of the received frame, during configuration of the PLC master.

Ensure that the correct protocol dependent configuration has been selected. Flashing of the TD LED indicates that a start-bit has been identified.

The definition of positive and negative T/R+, T/R– and R+, R– can differ between this ODW-631 and other units so it can be helpful to reverse the connection of + and –.

Westermo Teleindustri AB • SE-640 40 Stora Sundby, Sweden

Phone +46 16 42 80 00 Fax +46 16 42 80 01

E-mail: info@westermo.com

www.westermo.com

Sweden

Westermo Data Communications AB Svalgången 1, Vallbyinstitutet, 724 81 Västerås, Sweden Tel: 021 548 08 00, Fax: 021 35 18 50 info.sverige@westermo.se • www.westermo.se

United Kingdom

Westermo Data Communications Ltd Talisman Business Centre Duncan Road, Park Gate, Southampton. SO31 7GA Phone: +44(0)1489 580 585, Fax: +44(0)1489 580 586 sales@westermo.co.uk • www.westermo.co.uk

Germany

Westermo Data Communications GmbH, Goethe Strasse 67 DE-68753 Waghäusel, Germany Tel: +49(0)7254 95400-0, Fax: +49(0)7254-95400-9 info@westermo.de • www.westermo.de

France

Westermo Data Communications S.A.R.L. Bat. A, 9 Chemin de Chilly FR-91160 Champlan, France Tél : +33 1 69 10 21 00, Fax : +33 1 69 10 21 01 infos@westermo.fr • www.westermo.fr

Sales Units

Singapore

Westermo Data Communications Pte Ltd 2 Soon Wing Road #08-05, Soon Wing Industrial Building Singapore 347893 Phone +65 6743 9801 • Fax +65 6745 0670 sales@westermo.com.sg • www.westermo.com.sg

North America

Westermo Data Communications, Inc 939 N. Plum Grove Road, Suite F, IL 60173 Schaumburg, USA Phone: +1 847 619 6068 • Fax: +1 847 619 66 74 info@westermo.com • www.westermo.com

Taiwan

Westermo Data Communications Co F2, No. 188, Pao-Chiao Rd. Shing-Tien City, Taipei 23145 Phone:+886 2 8911 1710 sales.cn@westermo.com • cn.westermo.com

Westermo Teleindustri AB have distributors in several countries, contact us for further information.

REV.B 6650-2253 2012-01 Westermo Teleindustri AB, Sweden – A Beijer Electronics Group Company

Westermo ODW-632 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual