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
✓ In quote request: pcs ·
✓ On your document list · Select and download documents
The product sheet opens in a new tab, where you can print or save it.
A quote or help choosing products? Sales+358 40 668 7641myynti@pap.fi
A technical question about a device? Technical support+358 40 668 7643tuki@pap.fi
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


- CommFront
- Panasonic
Need help choosing products?
Our sales team will help you choose devices that suit the site and the existing system, and will prepare a quotation. Tell us about the system, the site and the quantities needed.