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Westermo

Westermo LRW-702-F2 fibre-to-copper converter, TLON network

Product code 41068

Fibre modem and repeater for the LonWorks TP/FT-10 bus, for DIN rail mounting. It extends the copper section of a TLON network over fibre point to point, as a bus or as a redundant ring.

  • LonWorks TP/FT-10, 78 kbit/s, transparent repeater function
  • 1–2 SFP slots for multimode or single-mode fibre, up to 120 km
  • Point to point, bus or redundant ring
  • Alarm output for fibre fault indication
  • Redundant supply 10–60 V DC or 20–30 V AC
  • 35 mm DIN rail housing, operating temperature −40…+60 °C

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Product description

Westermo LRW-702-F2 is a modem between the LonWorks® bus (TP/FT-10) and a fibre-optic network. In the Panasonic TLON network, the fire alarm control panels communicate on a LonWorks TP/FT-10 channel, and with a fibre repeater the channel can be extended, for example between buildings, where copper cable is not possible or interference is a risk. The technical description of the TLON network names the Westermo LRW fibre repeaters (LRW-102 or newer) as the recommended solution.

Operation

The device operates as a repeater: the optical signal is regenerated, which removes jitter and ensures reliable data transfer. The device has two SFP slots, for which Westermo-approved multimode or single-mode fibre modules are selected. Depending on the module, the link can be single-fibre or up to 120 km long. With two fibre ports, a multidrop or redundant ring network can be built, and an alarm output indicates a fibre fault.

Installation

The housing is mounted on a 35 mm DIN rail. All interfaces are galvanically isolated and transient-protected. The redundant supply inputs can be connected to two separate sources; the operating voltage is 10–60 V DC or 20–30 V AC. The device meets the industrial EMC standards EN 61000-6-2 and EN 61000-6-4. SFP modules are ordered separately, for example the TLON LRW SLC20 SFP module for single-mode fibre.

Technical data

Product code
41068
Manufacturer
Westermo
Product group
Fire alarm systems › Control equipment
Weight
0.26 kg
Dimensions
34 × 123 × 121 mm (W × H × D)
Operating voltage
10–60 V DC or 20–30 V AC, redundant supply
Operating temperature
−40…+60 °C
IP rating
IP21
Rated current
400 mA / 12 V DC, 200 mA / 24 V DC, 100 mA / 48 V DC
Protocols
LonWorks TP/FT-10, 78 kbit/s
Connection
TP/FT-10; 1–2 × SFP (100 Mbit/s); status output on removable screw terminal
Range
Depending on SFP module, up to 120 km
Mounting
35 mm DIN rail
Standards
EN 61000-6-2, EN 61000-6-4
Manufacturer’s code
Westermo 3651-1401

Documents

Original manufacturer documents (PDF).

Technical datasheets

Installation guides

More products in this product group

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