Fibre optic repeater for TP/FT-10
INSTALLATION MANUAL
6608-2201
www.westermo.se
LR-01
LR-01PP
©
Westermo Teleindustri AB • 2001 • REV. C
Galvanic
Isolation
Transient
Protection
CE
Approved
LONWORKS®and LonTalk®are trademarks of Echelon Corporation registered in United States and other countries.
3
6608-2201
Contents
1 SPECIFICATIONS LR-01 ............................................................................................................................................ 4
2 INTRODUCTION
.................................................................................................................................................... 5–7
3 COMMUNICATIONS
......................................................................................................................................... 8–15
3.1 Point to point topology
..................................................................................................................................... 9
3.2 Bus topology
..................................................................................................................................................... 9–10
3.3 Ring topology ......................................................................................................................................................... 11
3.3.1 Alarm indications ............................................................................................................................. 12–13
3.4 Channel delay
......................................................................................................................................................... 14
3.5 Power budget
......................................................................................................................................................... 15
4 SETTINGS AND CONNECTIONS
...................................................................................................... 16–18
4.1 Switch settings ....................................................................................................................................................... 16
4.2 Connections
............................................................................................................................................................ 17
4.3 How to connect ................................................................................................................................................... 18
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1 SPECIFICATIONS LR-01/LR-01PP
GENERAL
FIBRE
Standard Maximum fibre length Number of LR-01 units
Normal 25 000 m 10
EIA-709.3 4 000 - 5 600 m 2–10
TECHNICAL DATA
Transmission Transparent conversion of LonTalk
®
packets
Interface 1 LONWORKS
®
TP/FT, FTT-10A, 5-position screw block
Interface 2 See model specific data
Indicators See model specific data
Transmission rate 78 kbit/s
Weight, kg See model specific data
Mounting On 35 mm DIN-rail
POWER SUPPLY ALTERNATIVES
Model description LR-01/LR-01PP AC LR-01/LR-01PP DC
Power supply 230 V AC +15/–10% 24V DC ±50%
Frequency 48–62 Hz –
Fuse, F2 100 mA S 5x20 mm 1.6 A S 5x20 mm
Littlefuse Littlefuse
Power consumption See model specific data See model specific data
Transient protection
Power/Line Yes/Yes –/Yes
Isolation RMS
Power supply 3 000 V 1 500 V
MODEL SPECIFIC DATA
LR-01 LR-01PP
Interface 2 Fibre optic, Fibre optic,
4 ST-connectors, 2 ST-connectors,
See table on page 15 See table on page 15
Indicators PWR, TD, RD, Tx1, PWR, TD, RD
Tx2, Rx1, Rx2
Weight, kg AC 0.6 / DC 0.3 AC 0.6 / DC 0.3
Power consumption AC 25 mA / DC 3 W AC 25 mA / DC 3 W
LED INDICATION
LED FUNCTION
PWR Indicates that the units has power
TD Indicates receiving data on TP/FT side
RD Indicates transmitting data on TP/FT side
Rx1 Indicates receiving data on fibre receiver 1
Tx1 Indicates transmitting data on fibre transmitter 1 from TP/FT side
Rx2 Indicates receiving data on fibre receiver 2
Tx2 Indicates transmitting data on fibre transmitter 2 from TP/FT side
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6608-2201
2 INTRODUCTION
The LR-01 offers an easy way to extend the distance between LONWORKS®78 kbit/s
TP/FT network segments using a fibre optic link. The complete transparent conversion
to and from the fibre optic media facilitates the installation procedure by eliminating the
need for any additional network addressing or software configuration.
An LR-01 link acts as a TP/FT-10 physical layer repeater with the following additional
features:
• The channel can be extended to a much longer distances using fibre optic cables
• Up to ten network segments
• Offers immunity against electrical interference
TP/FT Network Segments
Fibre Optic Network
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
Figure 2.1 Up to ten network segments
The EIA-709.3 specification states a maximum delay of 36 µs and a maximum of one
repeater between any two nodes. Using the LR-01 this delay restriction will normally be
met if the total fibre cable length between the two units is restricted to 5.6 km thus two
LR-01 units form one physical layer repeater. The recommended maximum number of
LR-01’s connected together is ten, however as more units are connected together the
total length of fibre has to be reduced to keep within the delay budget (please see 3.4
channel delay).
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
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6608-2201
LR-01 PP
Fibre optic point to point link
LR-01 PP
TP Network
TP Network
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
Fibre optic bus link
TP Network
LR-01PP LR-01 LR-01PP
TP Network TP Network
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
Figure 2.2 Network topologies
The LR-01 is equipped with either one (PP-version) or two pairs of fibre optic receiver
and transmitter. This allows the user to build either point to point-, bus- or ring topology fibre links.
LR-01
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
Rx1
Rx2
Tx1
Tx2
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
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Fibre optic redundant link
LR-01
Ring master
LR-01 LR-01
TP Network TP Network TP Network
TD RD C EPWR
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
Figure 2.3 Network topologies
In a fibre ring, one of the LR-01 units will be assigned as a ring master and then having
the responsibility to stop messages from looping around the ring. The LR-01 has a builtin redundancy scheme that provides for fault tolerance in the fibre rings.
There is a maximum transmission distance on the fibre link depending on the available
power budget of the LR-01 units and losses due to attenuation in cables, connectors and
splice joints. With single mode fibre, distances up to 25 km can be reached.
In addition to the physical limitation there will also be a logical protocol specific limitation that needs to be considered. The extension of the TP/FT network over a fibre optic
channel will impose a certain propagation delay across the network segments. Imposing a
propagation delay on a standard FT-10 channel will affect the Layer 1 timing and the
over-all channel media access. Significant propagation delay could result in packet collisions and packet re-transmission, and thus network performance will decrease.
As always, it is recommended to analyse the network under worst-case condition using
a L
ONWORKS
®
protocol analyser. This is even more important if very long fibre cables
are used with many segments and many nodes. To increase performance and distance
further, the 1 250 kbit/s LR-11 router is recommended. Please see section 3.4 further
discussions and recommendation regarding this issue.
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
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3 COMMUNICATIONS
The LR-01 consists of either one (PP-version) or two sets of fibre optic ports, each with
its separate transmitter and receiver, and one L
ONWORKS
®
FTT-10A transceiver for the
TP network. Figure 3.1 illustrates the communication ports on the LR-01.
If there are only two network segments that are to be connected, the point to point
version of LR-01 could be used. If the network contains of more than two segments,
the data needs to be retransmitted onto the fibre link to other connected network
segments.
The LR-01 with its two sets of fibre optic ports can then be used to build bus or ring
topology fibre links.
Figure 3.2 illustrates the general data flow when data is received from a TP segment.
Incoming data on a fibre link is transmitted onto the L
ONWORKS
®
TP network as well as
forwarded to the next unit on the fibre link.
Figure 3.1. Ports on LR-01 and LR-01 PP (point to point)
Fibre Optic
TP Network TP Network
Rx1
Tx1
Rx2
Tx2
Rx
Tx
LR-01 LR-01PP
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
Fibre
From TP Network T o TP Network
LR-01 LR-01 LR-01
T o TP Network
LR-01
T o TP Network
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
Figure 3.2. Ports on LR-01
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
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3.1 Point to point topology
With only two network segments, the most cost effective solution is to use two point to
point (LR-01PP) units to create a fibre optic connection.
The user could however still choose not to use the point to point units and have the
additional link unconnected. In this way the user have the possibility to easily add more
units and network segments at a later time.
The point to point connection provides a totally transparent fibre link which means that
all data received on one units TP port will be forwarded unchanged to the other port, as
illustrated in figure 3.3. This could be regarded as Two-Way physical repeater link.
3.2 Bus topology
The normal mode for communication is a transparent mode referred to as Y-mode.
The data flow in Y-mode is schematically illustrated in figure 3.4.
When data is received from a TP network, the corresponding LR-01 unit will transmit
the data onto both F/O links. All data received by an LR-01 unit on either Rx1 or Rx2 is
transmitted over to the corresponding TP network as well as forwarded by the opposite
transmitter, Tx2 or Tx1. The units used at the endpoints does not need to forward data
on both fibre links, and thus only one fibre link is required (PP version).
Y-mode provides totally transparent communication. All L
ONWORKS
®
nodes will be able
to send and receive data to and from all TP segments. This could be regarded as N-Way
physical repeater link.
Figure 3.3. Point to point communication
Figure 3.4. Transparent Y-mode
TP Network
LR-01PP
TP Network
LR-01PP
Rx Tx Rx Tx
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
LR-01LR-01PP
Rx
Tx1 Rx2 Tx1
LR-01
Rx2
Tx1 Rx1 Tx2 Rx1 Tx2
TP Network TP Network TP Network
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
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There is an additional mode that could be used to reduce network traffic between
different TP network segments. This mode is referred to as V-mode. The data flow
in V-mode is schematically illustrated in figure 3.5.
In this mode, data received on the Rx2 receiver is not transmitted onto the corresponding TP segment. It is however forwarded to the next unit on the fibre link via Tx1.
Data received from a TP segment is transmitted only on Tx1. As shown in figure 3.4
only the first TP segment can send and receive data to and from all the other TP segments.
A single central management node could be placed in the main TP segment. With this
architecture, it could cycle around and do something to each node (such as network
management, polling etc.). Any background peer-to-peer activity or noise within other
TP segments would not be spread to other TP segments except the one containing the
central node.
Figure 3.5. Centralized communication architecture with isolated TP segments (V-mode)
LR-01LR-01PP
Rx
Tx1 Rx2 Tx1
LR-01
Rx2
Tx1 Rx1 Tx2 Rx1 Tx2
This segment should
contain the central node.
If a LR-01 is used as
endpoint, the Rx1 must
be used.
Data from the TP segment is transmitted only
to the fiber link connected to Tx1.
Only data received from the Rx1 receiver is
transmitted out on the TP segment.
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
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Figure 3.6. Ring communication
Figure 3.6 illustrates schematically how the fibre links are connected to form two rings.
3.3 Ring topology
The LR-01 units could be linked together to form a fibre optic ring. The ring topology
requires one dedicated LR-01 unit (ring master) to stop all messages on the fibre ring,
thus preventing message looping.
With ring topology, a built-in redundancy scheme offers communication fault tolerance. If
a fault is detected on one of the fibre links, the data flow will automatically be re-routed
to make a new communication path that reaches all units in the ring. The time to set-up
the new communication path could take up to 4 ms. Any data that is transmitted during
that time may be lost. The LR-01 can handle a fault on one fibre or a fibre pair, and still
be able re-route the communication. The LR-01 unit has two alarm outputs for fault
detection, one for each fibre link.
The redundancy scheme requires the fibre optic links to be connected as follow:
F/O Link 1: Tx2 " Rx1 " Tx2 " Rx1 " Tx2 etc.
F/O Link 2: Tx1 " Rx2 " Tx1 " Rx2 " Tx1 etc.
Rx2
TP Network TP Network TP Network
Tx1 Rx2 Tx1 Rx2 Tx1
Tx2 Rx1 Tx2 Rx1 Tx2 Rx1
LR-01 LR-01 Ringmaster LR-01
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
LONWORKS TP/FT-10 POWER
N1 N2 LN
Rx1
Rx2
Tx1
Tx2
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3.3.1 Alarm indications
The units have two alarm outputs marked as CH1 and CH2. When a unit detects a fault
on a fibre optic link the circuit between the contacts “C” and “E” is opened. See section
4.2 for an example how to connect the alarm output to an external relay.
In case of a fault on a fibre link, the receiver on the closest downstream unit will detect
the fault and assert a receive failure alarm. The ring master will also be aware of the fault
and assert the link failure alarm corresponding to the faulty fibre link. In that way a monitoring system only needs to monitor the ring master to obtain the over-all status of the
two fibre links. To find which fibre segment that is broken the alarm status on each unit
must be investigated.
Below are some examples of LR-01 alarm indications when fault is detected on the fibre
link. The break is indicated with a X and an asserted alarm output with a filled circle.
The faults showed in these examples are recovered by the built-in redundancy scheme
within 4 ms. An alarm will remain asserted until the fault is repaired, i.e. when communication on both fibre links operates normally.
The receiver Rx1 on the ring master unit detects a break on Link 1.
Alarm CH1 is asserted on the ring master unit.
The receiver Rx1 on the rightmost LR-01 unit detects a break on Link 1.
Alarm CH1 is asserted on both local unit and the ring master unit.
Link 1
Link 2
LR-01
CH1
CH2
LR-01
CH1
CH2
LR-01
CH1
CH2
CH1
CH2
LR-01
Ringmaster
x
Link 1
Link 2
LR-01
CH1
CH2
LR-01
CH1
CH2
LR-01
CH1
CH2
CH1
CH2
LR-01
Ringmaster
x
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The receiver Rx2 on the rightmost LR-01 unit detects a break on Link 2.
Alarm CH2 is asserted on both local unit and the ring master unit.
The receiver Rx2 on the rightmost LR-01 unit detects a break on Link 2, which results in an assertion of CH2. The receiver Rx1 on the leftmost LR-01 unit detects a break on Link 1,
which results in an assertion of CH1. The ring master asserts both CH1 and CH2.
The rightmost LR-01 unit does not function due to power loss or some internal error.
Receivers on the LR-01 units one step downstream the broken unit will detect a fault on the fibre links.
They will both assert their corresponding alarm output. The ring master asserts both CH1 and CH2.
Link 1
Link 2
LR-01
CH1
CH2
LR-01
CH1
CH2
CH1
CH2
LR-01
CH1
CH2
LR-01
Ringmaster
Link 1
Link 2
LR-01
CH1
CH2
LR-01
CH1
CH2
LR-01
CH1
CH2
CH1
CH2
LR-01
Ringmaster
x
Link 1
Link 2
LR-01
CH1
CH2
LR-01
CH1
CH2
LR-01
CH1
CH2
CH1
CH2
LR-01
Ringmaster
x
x
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3.4 Channel delay
When two or more LR-01 units are used on a LonWorks free topology network they
form a physical repeater link. As with a normal FTT-FTT physical repeater, the LR-01
link also forms a new channel segment and regenerates the signal allowing more nodes
to be installed.
It is important that the user is aware of the limitations involved with a physical extension
of an FTT channel. The LR-01 units can transparently forward the LonTalk
®
packets and
also assure that the required signal level is kept throughout the channel extension.
However, cable length between the units will impose an extra propagation delay on the
channel that could conflict with the media access timing used by the LonTalk
®
protocol.
Increasing the propagation delay results in a higher probability for packet collisions,
especially for a busy channel.
A normal FTT channel is dimensioned for one physical repeater allowing a maximum
distance of 5 400 metres (2 x 2 700 metres).
For a busy channel it is better to use the LR-11 router instead of the LR-01. With the
LR-11 router the delay is not a problem since it uses a fibre optic channel where the
propagation delay is accounted for.
It is recommended to use a L
ONWORKS
®
protocol analyser to verify the network performance during high peak channel access. If an increased number of packet collisions
and retries are detected, the options are to either use the router model (LR-11) or
modify the communication parametres on the nodes to allow for an extra propagation
delay. The trade-off for changing the communication parametres is a reduced channel
performance. See application notes AN-01201A for details about changing communication parametres on the nodes.
Having the above limitations in mind, we recommend using any of following equations
to determine total fibre distance and number of units:
For example, the above equation would allow 10 LR-01 units to use a maximum fibre
optic cable length of 23.4 km.
According to the EIA-709.3, the delay through a repeater link must not exceed 36 microseconds. In many cases this requirement is met if the following relation equation is used:
For example, the above equation would allow two LR-01 units to use a maximum fibre
optic cable length of 5.6 km.
The above discussion considers the limitation in maximum distance due to protocol
parametres involving media access and network idle detection. As with all fibre optic
products, the maximum distance is also dependent on the available power budget
between the nodes (see section 3.5).
Fibre distance (m) / 200 + Number of units < 127
Max number of units = 10
Fibre distance (m) / 200 + Number of units < 30
Max number of units = 10
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3.5 Power budget
50/125 µm 3.0 dB/km 1.0 dB/km
62,5/125 µm 3.5 dB/km 1.2 dB/km
100/140 µm 4.0 dB/km
9/125 µm 0.5 dB/km
Fibre
Attenuation
at 820 nm
Attenuation
at 1300 nm
Attenuation
at single mode (1300 nm)
Attenuation in fibre cable
The values below can differ depending on quality and manufacturer of the fibre optic
cable.
Attenuation in connectors Attenuation in splice
0.2–0.4 dB Fusion 0.1 dB
Mechanical 0.2 dB
50/125 16.6 dB 14.6 dB
62,5/125 18.6 dB 15.1 dB
100/140 25.9 dB
9/125 12.3 dB
50/125 10.7 dB 8.1 dB
62,5/125 14.5 dB 11.6 dB
100/140 20.6 dB
9/125 6.3 dB
Unit
820 nm 1300 nm single mode
Unit
820 nm 1300 nm single mode
Min. budget Typ. budget
”Min. budget” states the minimum guaranteed power budget. Experience shows however that the
typical value is in the range of the indicated ”Typ. budget”.
Fibre
Fibre
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4 SETTINGS AND CONNECTIONS
4.1 Switch settings
The following switch settings will be used:
Bus/Ring configuration
(not PP version)
ON
123456
S1 Ring
Factory settings
ON
123456
S1
ON
123456
S1 Bus
Transmitted power link 1
ON
123456
S1 Low power
ON
123456
S1 High power
Transmitted power link 2
(not PP version)
S3
S3
Low power
S3
High power
Y/V-mode alt.
Ring master/Slave-mode
(not PP version)
(depending on S1:1)
ON
123456
S1 V-mode / Ring master
ON
123456
S1 Y-mode / Slave
S1: 3, 4 and 5 is not used
S3: 2–4 is not used
ON
1234
ON
1234
ON
1234
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4.2 Connections
Network connection
(L
ONWORKS
®
TP/FT)
(5-position screw terminal)
Connection no. Description
1N 1
2N 2
Power connection
(3-position screw terminal)
Connection Description
L 230 V AC power
N
Earth
Power connection
(2-position screw terminal)
Connection Description
1 – Voltage
2 + Voltage
OPTO LINK MONITOR
CH1
CE
CH2
Alarm connectors are polarity depended.
C
E
Alarm signals
Upon failure the circuit between the contacts “C” and
“E” is opened. This circuit can be used to generate an
external alarm signal by connecting an external relay as
shown on page 18. Please note that the maximum
allowed voltage/current is 30 V/80 mA.
Alarm connection
(9-position screw terminal)
Connection Description Polarity
1 CH2, E –
2 CH2, C +
3 CH1, E –
4 CH1, C +
LONWORKS
®
TP/FT
Power
supply
Alarm indication
Note
!
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
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N1 N2 LN
LONWORKS TP/FT-10 POWER
LONWORKS
®
TP/FT-10
Network connection
Alarm connection
LR-01
Rx1
Rx2
TD RD C EPWR
OPTO LINK MONITOR
CH1CECH2
Max 30 V, 80 mA
Relay
In this example only channel 2 is connected.
Under normal operation channel 1 and channel 2 should be connected
+
–
LR-01
RX1 RX2
TX2
TX1
RX1 RX2
TX2
TX1
LR-01 LR-01
RX1 RX2
TX2
TX1
TP Network TP Network TP Network
4.3 How to connect
Fibre connection (Ring configuration)
T03-0038 • 6608-2201 03.02 Mälartryck AB, Eskilstuna, Sweden
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.se • W estermo W eb site: www.w estermo.se
Westermo Teleindustri AB have distributors in several
countries, contact us for further information.
Westermo Data Communications Ltd
Unit 14 Talisman Business Centre • Duncan Road
Park Gate, Southampton • SO31 7GA
Phone:+44(0)1489 580 585 • Fax.:+44(0)1489 580586
E-Mail:sales@westermo.co.uk • Web: www.westermo.co.uk
Westermo Data Communications GmbH
Goethestraße 67,68753 Waghäusel
Tel.: +49(0)7254-95400-0 • Fax.:+49(0)7254-95400-9
E-Mail:info@westermo.de • Web: www.westermo.de
Westermo Data Communications S.A.R.L.
9 Chemin de Chilly 91160 CHAMPLAN
Tél :+33 1 69 10 21 00 • Fax : +33 1 69 10 21 01
E-mail :infos@westermo.fr • Site WEB: www.westermo.fr
Subsidiaries
Application examples
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
FT-10
Network
FT-10 Network
FT-10 Network
FT-10
Network
Redundant fibre ring
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
OPTO LINK MONITOR
CH1
CE
CH2
FT-10 Network
FT-10 Network
Multidrop
Point to point
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
TD RD C EPWR
LR-01
Rx1
Tx1
LONWORKS TP/FT-10 POWER
N1 N2 LN
Rx2
Tx2
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Rx2
Tx1
Tx2
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx1
Tx1
LONWORKS TP/FT-10 POWER
N1 N2 LN
Rx2
Tx2
TD RD C EPWR
LR-01
Rx1
Tx1
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx2
Tx2
Rx1
Tx1
LONWORKS TP/FT-10 POWER
N1 N2 LN
Rx2
Tx2
TD RD C EPWR
LR-01
Rx1
Tx1
LONWORKS TP/FT-10 POWER
N1 N2 LN
Rx2
Tx2
TD RD C EPWR
LR-01
Rx1
Tx1
LONWORKS TP/FT-10 POWER
N1 N2 LN
TD RD C EPWR
LR-01
Rx2
Tx2
Rx1
Tx1
LONWORKS TP/FT-10 POWER
N1 N2 LN
Rx2
Tx2
TD RD C EPWR
LR-01
Rx1
Tx1
LONWORKS TP/FT-10 POWER
N1 N2 LN
Rx2
Tx2
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