Westermo LRW-112 Series User manual

Fibre Optic industrial router
for LonWorks® TP/FT-10
point-to-point,
line and redundant ring
www.westermo.com
LON STATUS
N2 N1 L2 L1
PWR CH 1
TD
FL L
RD FL R
PKT
CH 2
LRW-100 Series
12
12
REV.A 6650-2270 2008.05 Mälartryck AB, Eskilstuna, Sweden
©Westermo Teleindustri AB
User Guide
6650-2270
LRW-112
SERIES

26650-2270
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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6650-2270
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 oper-
ating 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 voltage by disconnecting the unit from power supply.
Warning! Do not open connected unit. Hazardous voltage may occur within this
unit when connected to power supply.
Class 1 Laser Product
Do not look directly into fibre optical fibre port or any connected fibre although
this unit is designed to meet the Class 1 Laser regulations.
Care recommendations
Follow the care recommendations below to maintain full operation of unit and to fulfil
the warranty obligations.
This unit must not be operating with removed covers or lids.
Do not attempt to disassemble the unit. There are no user serviceable parts inside.
Do not drop, knock or shake the unit, rough handling above 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 water-
proof. 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
part may be damaged.
If the unit is not working properly, contact the place of purchase, nearest Westermo dis-
tributor office or Westermo Tech support.
Fibre connectors are supplied with plugs to avoid contamination inside the optical port.
As long as no optical fibre is mounted on the connector, e.g. for storage, service or
transportation, should the plug be applied.
!
!
!

46650-2260
Note. Fibre Optic Handling
Fibre optic equipment needs special treatment. It is very sensitive to dust and dirt. If
the fibre will be disconnected from the modem the protective hood on the transmitter/
receiver must be connected. The protective hood must be kept on during transportation.
The fibre optic cable must also be handle the same way.
If this recommendation not will be followed it can jeopardise the warranty.
Cleaning of the optical connectors
In the event of contamination, the optical connectors should be cleaned by the use of
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 61000-6-2, Immunity industrial environments
EN 55024, Immunity IT equipment
EN 61000-6-3, Emission residential environments
FCC part 15 Class A
Safety EN 60950-1, IT equipment
FCC Part 15.105 Notice: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference
in a residential installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a partic-
ular installation. If this equipment does cause harmful interference to radio
or television reception, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference by
one or more of the following measures:
… Reorient or relocate the receiving antenna
… Increase the separation between the equipment and receiver
… Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected
… Consult the dealer or an experienced radio/TV technician for help.

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Declaration of Conformity
Westermo 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 Installation manual
LRW-102PP 3650-xxxx 6650-2260 Industrial Converter,
TP/FT-10 to fibre optic link LRW-102 3650-xxxx 6650-2260
LRW-112PP 3650-xxxx 6650-2270 Industrial Router,
TP/FT-10 to fibre optic link LRW-112 3650-xxxx 6650-2270
is in conformity with the following EC directive(s).
No Short name
89/336/EEG Electromagnetic Compatibility (EMC)
References of standards applied for this EC declaration of conformity.
No Title Issue
EN 61000-6-2 Immunity for industrial environments 2 (2001)
EN 55024 Information technology equipment – Immunity 1 (1998)
EN 61000-6-3 Emission standard for residential, commercial and
light-industrial environments
1 (2001)
Herewith declares that product(s) listed above is in conformity with
No Title Issue
FCC part 15 Radio frequency devices 2003
Pierre Öberg
Technical Manager
28th April 2008

66650-2260
Type tests and environmental conditions
Electromagnetic Compatibility
Phenomena Test Description Level
ESD EN 61000-4-2 Enclosure contact ± 4 kV
Enclosure air ± 8 kV
RF field AM modulated IEC 61000-4-3 Enclosure 10 V/m 80% AM (1 kHz), 80 – 1 000 MHz
Fast transient EN 61000-4-4 Signal ports ± 1 kV
Power ports ± 2 kV
Surge Signal ports balanced ± 1 kV line to earth, ± 1 kV line to line
Power ports ± 0.5 kV line to earth, ± 0.5 kV line to line
RF conducted EN 61000-4-6 Signal ports 10 V 80% AM (1 kHz), 0.15 – 80 MHz
Power ports 10 V 80% AM (1 kHz), 0.15 – 80 MHz
Power frequency
magnetic field
EN 61000-4-8 Enclosure 100 A/m, 50 Hz, 16.7 Hz & 0 Hz
Pulse Magnetic field EN 61000-4-9 Enclosure 300 A/m, 6.4 / 16 µs pulse
Voltage dips and
interruption
EN 61000-4-11 AC power ports 10 & 5 000 ms, interruption
10 & 500 ms, 30% reduction
100 & 1 000 ms, 60% reduction
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
Voltage dips
and interruption
EN 61000-4-29 DC power ports 10 & 100 ms, interruption
10 ms, 30% reduction
10 ms, 60% reduction
+20% above & –20% below rated voltage
Radiated emission EN 55022 Enclosure Class B
FCC part 15 Class A
Conducted emission EN 55022 AC power ports Class B
FCC part 15 AC power ports Class A
EN 55022 DC power ports Class B
Dielectric strength EN 60950 Signal port to all other
isolated ports
1.5 kVrms 50 Hz 1min
Power port to other
isolated ports
2 kVrms 50 Hz 1min
Environmental
Temperature Operating –40 to +70ºC LRW-112PP
–40 to +60ºC LRW-112
Storage & Transport –40 to +70°C
Humidity Operating 5 to 95% relative humidity
Storage & Transport 5 to 95% relative humidity
Altitude Operating 2 000 m / 70 kPa
Service life Operating 10 years
Vibration IEC 60068-2-6 Operating 7.5 mm, 5 – 8 Hz
2 g, 8 – 500 Hz
Shock IEC 60068-2-27 Operating 15 g, 11 ms
Packaging
Enclosure 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 IEC 529 Enclosure IP 21
Cooling Convection
Mounting Horizontal on 35 mm DIN-rail

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Description
The LRW-112 (LRW-112PP) router offers an easy way to extend the distance between
Lo n Wo r k s ® 78 kbit/s TP/FT network segments using a fibre optic link.
LRW-112 (LRW-112PP) is based on Echelon´s RTR-10 standard router core module, this
allowing standard configuration and installation with standard LON® tools. LRW-112
(LRW-112PP) can be installed as repeaters, configured routers, or learning routers.
The network segment using a high speed 1250 kbit/s backbone fibre optic network link.
This LRW-112 is a fibre optic modem used for point-to-point, (LRW-112PP), multi-drop
and redundant ring applications.
The LRW-112 (LRW-112PP) is designed for harsh out-door usage, in industrial, road or
railway installations. The complete transparent conversion to and from the fibre optic
media facilitates the installation procedure by eliminating the need for any additional net-
work addressing or software configuration.
Convert LON TP/FT-10 interface – optical fibre
Multidrop, point-to-point alternatively redundant ring communication …
via fibre optical network
Small Form Factor Pluggable (SFP) transceivers …
LC fibre connectors, single or multimode …
LC-2 Multimode LC connectors, 5 km (3.1 miles) …
LC-15 Singlemode LC connectors, 15 km (9.3 miles) …
Bi-di, Multimode LC connectors, 5 km (3.1 miles) …
Bi-di, Singlemode LC connectors, 20 km (12.4 miles) …
Redundant power supply, 2 kVAC galvanic isolated to other ports …
Designed for harsh environments …
Re-timing …
Status port …
Lo n Wo r k s ® interface
2-positions detachable screw terminal …
Data rate 78 kbit/s …

86650-2260
Functional description
Router TP/FT interface – optical fibre
The LRW-112 (LRW-112PP) is a fibre optic router that converts between Lo n Wo r k s ®
TP/FT, and fibre optical link.
Router – optical fibre links
The LRW-112 routes LON packets between a TP/FT-10 channel and a fibre optic channel.
The communication channels consist of a fibre optic interface and a TP/FT-10 interface.
The fibre optic interface is equipped with either one (PP-version) or two sets of fibre
optic ports, each with its separate transmitter and receiver, and the TP/FT-10 channel
consists of one Lo n Wo r k s ® FTT-10A transceiver.
Single or multimode LC fibre connectors
The LRW-112 (LRW-112PP) uses Small Form Factor Pluggable (SFP) transceivers that
are in compliance with Multi-Sourcing Agreement (MSA). A wide range of different fibre
transceivers and connectors can be used.

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Note: Bi-di fibre can be used.
The bi-di transceivers must always be used in pair, see example:
Point-to-point communication (LRW-112PP) via fibre optic network
With only two network segments, the most cost effective solution is to use two point-
to-point LRW-112PP units to create a single fibre optic connection.
The point-to-point connection provides a totally transparent fibre link which means that
all data received on one units TP/FT port will be forwarded unchanged to the other port,
as illustrated in the figure.
1550 nm
1310 nm
TX
RX
RX
TX
Bi-di transceiver, TX 1310 nm, RX 1550 nm
Bi-di transceiver, TX 1550 nm, RX 1310 nm
POWER CH 1
COM +VA +VB COM
POWER CH 1
COM +VA +VB COMTX RX TX RX
Fibre optical connection
at point-to-point communication
POWER CH 1
COM +VA +VB COM
POWER CH 1
COM +VA +VB COM
TX/
RX
TX/
RX
Fibre optical connection
at point-to-point communication (Bi-di transceiver)

10 6650-2260
Normal operation
When LRW-112 unit receives data from the LON network, the LRW-112 (the initiator)
will transmit the data onto the fibre ring. During normal operation the data will be trans-
mitted onto ring A. Data received by the other LRW-112 units in the ring is transmitted
over to the corresponding LON network as well as forwarded in the fibre ring. When a
LRW-112 initiator receives its own data packet, the packet it stopped. A LRW-112 initia-
tor will not forward another packet while waiting for its own packet to return.
Redundant ring communications via fibre optic network
Under normal operation the Lo n Wo r k s ® data is sent over ring A. Should a fault be
detected on the fibre ring then the Lo n Wo r k s ® data will be carried on rings A and B.
The LRW-112 units could be linked together to form a fibre optic ring. With ring topol-
ogy, a built-in redundancy scheme offers communication fault tolerance.
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
LON
Network
LON
Network
LON
Network
LON
Network