Westermo ODW-700 Series User manual

w w w. w ester m o .com
ODW-700 Series
Fibre Optic Modems

Table of Contents
1. General Information ........................................................................ 4
1.1. Legal Information ................................................................... 4
1.2. About This Guide ................................................................... 4
2. Safety and Regulations ................................................................... 5
2.1. Warning Levels ..................................................................... 5
2.2. Safety Information ................................................................. 6
2.3. Care Recommendations ......................................................... 7
2.4. Product Disposal ................................................................... 8
2.5. Compliance Information .......................................................... 8
2.5.1. Agency Approvals and Standards Compliance .................... 8
2.5.2. FCC Part 15.105 Class A Notice ...................................... 8
2.5.3. Simplified Declaration of Conformity .................................. 9
3. Product Description ...................................................................... 10
3.1. Product Description .............................................................. 10
3.2. Available models ................................................................. 10
3.3. Hardware Overview ............................................................. 11
3.4. Connector Information .......................................................... 11
3.4.1. Power Screw Terminal ................................................. 11
3.4.2. Status Screw Terminal ................................................. 12
3.4.3. PROFIBUS DP (ODW-710) ........................................... 13
3.4.4. RS-232 (ODW-720) ..................................................... 13
3.4.5. RS-422/485 Screw Terminal (ODW-730) .......................... 14
3.4.6. Optical fibre ............................................................... 14
3.4.6.1. SFP Transceivers ............................................... 14
3.5. Functional Description .......................................................... 15
3.5.1. Converter PROFIBUS DP - Optical Fibre ......................... 15
3.5.2. Converter Serial Interface - Optical Fibre ......................... 16
3.5.3. Repeater - Optical Fibre Links ....................................... 18
3.6. LED Indicators .................................................................... 19
3.7. Dimensions ........................................................................ 20
4. Installation .................................................................................. 21
4.1. Mounting ........................................................................... 21
4.2. Removal of Product ............................................................. 21
4.3. Cooling .............................................................................. 22
4.4. Settings and Configuration .................................................... 22
4.4.1. ODW-710 models ........................................................ 22
4.4.1.1. DIP-Switch Settings, ODW-710 Models ................... 22
4.4.1.2. Configuration ODW-710-F1 .................................. 25
4.4.1.3. Configuration ODW-710-F2 .................................. 28
4.4.1.4. Start-up Guide ODW-710-F1 ................................. 32
4.4.1.5. Prepare the Fibre Optical Network ......................... 32
4.4.2. ODW-720 models ........................................................ 33
2 ODW-700 Series

4.4.2.1. DIP-Switch Settings, ODW-720 Models ................... 33
4.4.2.2. Start-up Guide ODW-720-F1, Point-to-Point
Application ................................................................... 38
4.4.2.3. Referring Documents, ODW-720-F2 ....................... 38
4.4.3. ODW-730 models ........................................................ 39
4.4.3.1. DIP-Switch Settings, ODW-730 Models ................... 39
4.4.3.2. Start-up Guide ODW-730-F1, Point-to-Point
Application ................................................................... 44
4.4.3.3. ODW-730, RS-485 termination at system level ......... 45
4.4.3.4. Referring Documents, ODW-730-F2 ....................... 45
5. Specifications .............................................................................. 47
5.1. Interface Specifications ......................................................... 47
5.2. Type Tests and Environmental Conditions ................................. 51
6. Revision Notes ............................................................................ 53
ODW-700 Series 3

1. General Information
1.1. Legal Information
The contents of this document are provided “as is”. Except as required by applicable law,
no warranties of any kind are made in relation to the accuracy and reliability or contents
of this document, either expressed or implied, including but not limited to the implied
warranties of merchantability and fitness for a particular purpose. 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 www.westermo.com.
1.2. About This Guide
This guide is intended for installation engineers and users of the Westermo products.
It includes information on safety and regulations, a product description, installation
instructions and technical specifications.
4 ODW-700 Series

2. Safety and Regulations
2.1. Warning Levels
Warning signs are provided to prevent personal injuries and/or damages to the product.
The following levels are used:
Level of warning Description Consequence
personal injury
Consequence
material damage
WARNING
Indicates a potentially
hazardous situation
Possible death or major
injury
Major damage to the
product
CAUTION
Indicates a potentially
hazardous situation
Minor or moderate
injury
Moderate damage to the
product
NOTICE
Provides information in
order to avoid misuse of
the product, confusion or
misunderstanding
No personal injury Minor damage to the
product
NOTE
Used for highlighting general,
but important information
No personal injury Minor damage to the
product
Table 1. Warning levels
ODW-700 Series 5

2.2. Safety Information
Before installation:
Read this manual completely and gather all information available on the product. Make
sure it is fully understood. Check that your application does not exceed the safe operating
specifications for the product.
SAFETY DURING INSTALLATION
The product must be installed and operated by qualified service personnel
and installed into an apparatus cabinet or similar, where access is
restricted to service personnel only.
Before energising and connecting communication cables to the product,
ensure a protective earthing conductor is first connected to the
protective earthing terminal (only valid for metallic housings). Westermo
recommends a cross-sectional area of at least 4 mm2.
If the product does not have a protective earthing terminal, then the
DIN-rail must be connected to protective earth.
Upon removal of the product, disconnect the product from the power
supply and all other communication ports before disconnecting the
protective earthing conductor, or the connection to earth via the DIN-
rail.
HAZARDOUS VOLTAGE
Do not open an energised product. Hazardous voltage may occur when
connected to a power supply.
PROTECTIVE FUSE
Branch circuit protection (fuse) is required for this unit with rating not
exceeding 20 A. Product should be connected to UL listed power supplies
rated 12 - 48 VDC, min 500 mA or 24 VAC, min 500 mA or reliably
grounded DC SELV source.
It must be possible to disconnect manually from the power supply. Ensure
compliance to national installation regulations.
Replacing the internal fuse must only be performed by Westermo qualified
personnel.
6 ODW-700 Series

CLASS 1 LASER PRODUCT
Do not look directly into a fibre optical port or any connected fibre.
ELECTROSTATIC DISCHARGE (ESD)
Prevent electrostatic discharge damage to internal electronic parts by
discharging your body to a grounding point (e.g. use a wrist strap).
HANDLING OF SFP TRANSCEIVERS
SFP transceivers are supplied with plugs to avoid contamination inside the
optical port. They are very sensitive to dust and dirt. If the fibre optic
cable is disconnected from the product, a protective plug must be used
on the transmitter/receiver. The protective plug must be kept on during
transportation. The fibre optic cable must be handled the same way.
2.3. Care Recommendations
Follow the care recommendations below to maintain full operation of the product and to
fulfill the warranty obligations:
• Do not drop, knock or shake the product. Rough handling above the specification may
cause damage to internal circuit boards.
• Use a dry or slightly water-damp cloth to clean the product. Do not use harsh
chemicals, cleaning solvents or strong detergents.
• Do not paint the product. Paint can clog the product and prevent proper operation.
If the product is used in a manner not according to specification, the protection provided
by the equipment may be impaired.
If the product is not working properly, contact the place of purchase, the nearest
Westermo distributor office or Westermo technical support.
ODW-700 Series 7

2.4. Product Disposal
This symbol means that the product shall not be treated as unsorted municipal waste when
disposing of it. It needs to be handed over to an applicable collection point for recycling
electrical and electronic equipment.
By ensuring the product is disposed of correctly, you will help to reduce hazardous
substances and prevent potential negative consequences to both the environment and
human health, which could be caused by inappropriate disposal.
Figure 1. WEEE symbol for treatment of product disposal
2.5. Compliance Information
2.5.1. Agency Approvals and Standards Compliance
Type Approval/Compliance
EMC • EN 50121-4/IEC 62236-4, Railway signalling and telecommunications apparatus
• EN/IEC 61000-6-1, Immunity residential environments
• EN/IEC 61000-6-2, Immunity industrial environments
• EN/IEC 61000-6-3, Emission residential environments
• EN/IEC 61000-6-4, Emission industrial environments
Safety • UL/CSA 60950-1, IT equipment
Marine • DNV rules for classification - Ships and offshore units
Table 2. Agency approvals and standards compliance
2.5.2. FCC Part 15.105 Class A Notice
This product 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 product is operated in a commercial environment.
This product generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the user manual, may cause harmful interference to radio
communications. Operation of this product in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at the users
own expense.
8 ODW-700 Series

2.5.3. Simplified Declaration of Conformity
Hereby, Westermo declares that this product is in compliance with applicable EU directives
and UK legislations. The full declaration of conformity and other detailed information is
available at www.westermo.com/support/product-support.
Figure 2. The European Conformity and the UK Conformity Assessment markings
ODW-700 Series 9

3. Product Description
3.1. Product Description
The ODW-700 series has been designed to allow PROFIBUS DP, RS-232 or RS-422/485
data to be transmitted over fibre optic links in point-to-point, multidrop or redundant ring
networks. The design allows the use of a range of Westermo verified SFP (Small Form
Pluggable) transceivers which can provide solutions with, for example, only a single fibre or
distances up to 120 km.
The units have been designed for industrial use where the requirement is for a long
and reliable service life in a harsh environment. To ensure this reliable operation, it is
manufactured using the highest quality components.
The ODW-710 can be used on all PROFIBUS DP networks to extend the operational
network size beyond the normal constraints of the copper cable. All the data rates defined
in EN 50170 are supported.
The ODW-720 and ODW-730 draws on Westermo’s many years of knowledge of serial
protocols, with the ODW-720 being able to transmit RS-232 serial data, even the RTS/CTS
hardware controls if required. The ODW-730 supports RS-422/485 and can be used
on both synchronous and asynchronous data streams, with switch selectable termination
circuits that save the need for external terminating resistors.
The F1 variants are excellent for cost effectively creating point-to-point networks with
their single fibre port. Meanwhile, the F2 variants offer flexible multidrop and redundant
ring solutions to be created with the dual fibre ports. Large ring networks can be created
to provide network resilience to guarantee system functionality, even if a cable is damaged.
The ring recovery time ensures that the network devices are not aware of the failure. The
fault contact provides a method to communicate network failures.
The ODW-700 series is simple to install, being small, with an easy-to-use integral DIN rail
clip. The unit are totally transparent to any data rate, meaning configuration is not needed.
3.2. Available models
Art. no. Model Port FX fibre
3651-0711 ODW-710-F1 PROFIBUS DP (RS-485) 1 x LC Duplex or LC Simplex
3651-0712 ODW-710-F2 PROFIBUS DP (RS-485) 2 x LC Duplex or LC Simplex
3651-0721 ODW-720-F1 RS-232 1 x LC Duplex or LC Simplex
3651-0722 ODW-720-F2 RS-232 2 x LC Duplex or LC Simplex
3651-0731 ODW-730-F1 RS-422/485 1 x LC Duplex or LC Simplex
3651-0732 ODW-730-F2 RS-422/485 2 x LC Duplex or LC Simplex
Table 3. List of available models
10 ODW-700 Series

3.3. Hardware Overview
1
2
3
5
4
6
ODW-710-F1
1
2
3
5
4
6
ODW-730-F2
No. Description No. Description
1 Lid for DIP-switches 2 Status screw terminal
3 ODW-710: PROFIBUS DP
ODW-720: RS-232
ODW-730: RS-422/485
4 Power screw terminal
5 FX (fibre, 1 or 2 pcs depending on F1
or F2 model)
6 LED indicators
Figure 3. Location of interface ports and LED indicators
3.4. Connector Information
3.4.1. Power Screw Terminal
Illustration 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
Table 4. Status screw terminal table
ODW-700 Series 11

The power terminal has two independent inputs, +VA and +VB, allowing redundant power
input. The power supply is galvanically isolated from all other interfaces.
3.4.2. Status Screw Terminal
Illustration Position Description Product
marking
1 Contact with C when fibre optical links are in
operation
NO
2 Common C
3 -Open (no contact with C) when fibre optical links
are in operation
NC
Table 5. Status screw terminal table
For ODW-710s: From the factory, the status port is set to trigger on both types of link
failures. However, by setting DIP-switch S1:1 (ODW-710s) / S2:6 (ODW-720-F2 and
ODW-730-F2) to the ON position, the status port will only trigger when a local link failure
has occurred.
For ODW-710s and ODW-720-F2 and ODW-720-F2: Optical link failures can be classified
in to two categories, local or remote, as indicated by the FL L and FL R LEDs. A local link
failure is when an optical link is down at this particular unit. A remote link failure is when
an optical link is down at some other unit.
For ODW-710s: From the factory, the status port is set to trigger on both types of link
failures. However, by setting DIP-switch S1:1 (ODW-710s) / S2:6 (ODW-720-F2 and
ODW-730-F2) to the ON position, the status port will only trigger when a local link failure
has occurred.
NOTE
For ODW-710-F1: Setting DIP-switch S1:1 ON is only applicate if using
the ODW-710-F1 together with ODW-710-F2 in a multidrop network.
12 ODW-700 Series

3.4.3. PROFIBUS DP (ODW-710)
Illustration Position Description Product marking
1 - -
2 - -
3 In/Out RxD/TxD-P
4 Out CNTR-P
5 - DGND
6 Out VP
7 - -
8 In/Out RxD/TxD-N
9 - -
Table 6. PROFIBUS DP (RS-485)
The PROFIBUS DP (RS-485) interface is a female 9-position D-sub. Pin assignments are
compliance with the PROFIBUS standard EN 50170.
3.4.4. RS-232 (ODW-720)
Illustration Position Direction Description
1 Out Data Carrier Detect (DCD)
2 Out Received Data (RD)
3 In Transmitted Data (TD)
4 - Not connected
5 - Signal Ground (SG)
6 Out Data Set Ready (DSR)
7 In Request To Send (RTS)
8 Out Clear To Send (CTS)
9 - Not connected
Table 7. RS-232 D-sub
The RS-232 interface is a female 9-position D-sub. Pin assignments are compliance with
the EIA RS-232 standard.
ODW-700 Series 13

3.4.5. RS-422/485 Screw Terminal (ODW-730)
Illustration Position Direction Description Product marking
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-
Table 8. RS-422/485 screw terminal
This is 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
synchronuous mode.
3.4.6. Optical fibre
The units use Small Form Factor Pluggable (SFP) transceivers. This means that a wide
range of different fibre transceivers and connectors can be used.
The ODW-730s use Small From Factor Pluggable (SFP) transceivers that are in compliance
with the Multi-Sourcing Agreement (MSA). This means that a wide range of different fibre
tranceivers and connectors can be used. For supported transceivers, see SFP data sheet.
3.4.6.1. SFP Transceivers
Each SFP slot can hold one SFP transceiver. See "Transceiver User Guide 6100-0000" for
transceiver handling instructions, which also can be downloaded from the product support
pages at www.westermo.com/support/product-support.
In the event of contamination, the optical connectors in the SFP transceivers should only
be cleaned by the use of forced nitrogen and some kind of cleaning stick. Recommended
cleaning fluids are methyl-, ethyl-, isopropyl- or isobutyl alcohol, hexane or naphtha.
HANDLING OF SFP TRANSCEIVERS
SFP transceivers are supplied with plugs to avoid contamination inside the
optical port. They are very sensitive to dust and dirt. If the fibre optic
cable is disconnected from the product, a protective plug must be used
on the transmitter/receiver. The protective plug must be kept on during
transportation. The fibre optic cable must be handled the same way.
14 ODW-700 Series

3.5. Functional Description
The functional description gives on overview of the different models. In the illustrations
below in this chapter, OVP stands for Over Voltage Protection and OCP stands for Over
Current Protection.
3.5.1. Converter PROFIBUS DP - Optical Fibre
Internal Electronics
COM
COM
+VA
O
V
P
+VB
C
NO
NC
STATUS
POWER
LEDs
O
V
P
O
C
P
RxD/TxD-P
RxD/TxD-N
SHIELD
PROFIBUS DP
CH 1
SFP
Fibre transceiver
TX
RX
Switches
Figure 4. Block diagram for ODW-710-F1
Internal Electronics
COM
COM
+VA
O
V
P
+VB
C
NO
NC
STATUS
POWER
LEDs
O
V
P
O
C
P
RxD/TxD-P
RxD/TxD-N
SHIELD
PROFIBUS DP
CH 1
SFP
Fibre transceiver
TX
RX
CH 2
SFP
Fibre transceiver
TX
RX
Switches
Figure 5. Block diagram for ODW-710-F2
The ODW-710s are fibre optic modems that convert between electrical PROFIBUS DP
RS-232 and a fibre optical link. It converts PROFIBUS DP data using data rates from 9 600
bit/s up to 12 Mbit/s. Retiming of the PROFIBUS DP data ensures that the correct signal
form is transmitted from the ODW-710 converters.
The PROFIBUS data rate is set automatically as soon as the ODW-710 receives a correct
data frame, whether data is received from PROFIBUS DP or the fibre optic link. The
detected data rate remains until a number of consecutive faulty received frames have been
detected or no further frames are detected within the timeout period. The timeout period
is set by switches, with the default setting of 31 faulty frames or 5 seconds without any
received frames.
The ODW-710-F2 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
ODW-700 Series 15

needed. The maximum optical fibre distance depends on selected fibre transceiver and fibre
type. Distances up to 80 km (50 miles) are available.
3.5.2. Converter Serial Interface - Optical Fibre
STATUS
C
NO
NC
LEDs
Switches
CH 1
SFP
Fibre transceiver
TX
RX
I
nternal
E
lectronics
COM
COM
+VA
O
V
P
+VB
POWER
RS -232
S
HIELD
DCD
RD
T
D
S
G
D
SR
R
TS
C
TS
ODW-720
O
V
P
Figure 6. Block diagram for ODW-720-F1
STATUS
C
NO
NC
LEDs
Switches
CH 2
SFP
Fibre transceiver
TX
RX
CH 1
SFP
Fibre transceiver
TX
RX
I
nternal
E
lectronics
COM
COM
+VA
O
V
P
+VB
POWER
RS -232
S
HIELD
DCD
RD
T
D
S
G
D
SR
R
TS
C
TS
ODW-720
O
V
P
Figure 7. Block diagram for ODW-720-F2
16 ODW-700 Series

STATUS
C
NO
NC
LEDs
Switches
CH 1
SFP
Fibre transceiver
TX
RX
I
nternal
E
lectronics
ODW-730
COM
COM
+VA
O
V
P
+VB
POWER
T
/R -
T/R+
R
S -485
R
-
R+
+5V
0V
+5V
0V
O
C
P
O
V
P
Figure 8. Block diagram for ODW-730-F1
STATUS
C
NO
NC
LEDs
Switches
CH 2
SFP
Fibre transceiver
TX
RX
CH 1
SFP
Fibre transceiver
TX
RX
I
nternal
E
lectronics
ODW-730
COM
COM
+VA
O
V
P
+VB
POWER
T
/R -
T/R+
R
S -485
R
-
R+
+5V
0V
+5V
0V
O
C
P
O
V
P
Figure 9. Block diagram for ODW-730-F2
The ODW-720s and ODW-730s are fibre optic modems. The ODW-720s convert
between electrical RS-232 and a fibre optical link, while the ODW-730s convert between
electrical RS-485 and a fibre optical link.
ODW-700 Series 17

The ODW-720s can convert from RS-232 to RS-485 by using a ODW-720 in the same
link as a ODW-730, while the ODW-730 can convert from RS-485 to RS-232 by using a
ODW-730 in the same link as a ODW-720.
The ODW-720-F1 converts data using rates from 300 bit/s up to 250 kbit/s.
3.5.3. Repeater - Optical Fibre Links
The ODW-720s and ODW-730s are fibre optic repeaters that repeat 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.
18 ODW-700 Series

3.6. LED Indicators
LED Status Description
PWR ON Power is on.
OFF Power is off.
BAa.
Bus active
ON Data rate has been identified and data frames are being received on
the electrical or optical interface.
OFF Data rate has not been identified.
FPb. ON Focal point.
OFF Redundant ring member or multidrop unit.
CH 2c.
Channel 2 link
status
ON Fiber link to other unit has been established at CH 2.
Flashing Optical power detected but link to other unit has not been
established at CH 2.
OFF No optical power detected and no link to other unit has been
established at CH 2.
CH 1
Channel 1 link
status
ON Fiber link to other unit has been established at CH 1.
Flashing Optical power detected but link to other unit has not been
established at CH 1.
OFF No optical power detected and no link to other unit has been
established at CH 1.
DPRa.
Receive
PROFIBUS DP
Flash Data received on the electrical interface and transmitted out on the
optical interface.
OFF No data received on the electrical interface.
FRa.
Receive fibre link
Flash Data received on the optical interface and transmitted out on the
electrical interface.
OFF No data received on the optical interface.
TDd. Flash Data received on the electrical interface and transmitted out on the
optical interface.
OFF No data received on the electrical interface.
RDd. Flash Data received on the optical interface and transmitted out on the
electrical interface.
OFF No data received on the optical interface.
FL R
Failure link
remote
ON Remote fibre link failure. A fibre link is out of operation at any other
unit than this one.
Flashing Hardware error or invalid configuration.
FL L
Failure link local
ON Local fibre link failure. A fibre link is out of operation at this unit.
Flashing Hardware error or invalid configuration.
a.Applicable only for ODW-710 models
b.Applicable only for ODW-720-F2 and 730-F2, not used on ODW-720-F1 and ODW-730-F1
c.Applicable only for F2 models, not used on F1 models
ODW-700 Series 19

d.Applicable only for ODW-720 and ODW-730 models
Table 9. LED indicators
3.7. Dimensions
Dimensions are stated in mm and are regardless of model.
34 115
4182
7
Figure 10. Dimensional drawing
20 ODW-700 Series