Fibre Optic Router – LRW-112 SM/MM
The LRW-112 fibre optic router offers an easy way to extend the distance between LONWORKS 78 kbit/s TP/FT network segment using a high speed 1250 kbit/s backbone fibre optic network link. LRW-112 is based on the Echelon RTR-10 standard router core module, thus allowing standard configuration and installation using LonMaker and other LNS-based tools.
LRW-112 devices can be installed as repeaters, configured routers, or learning routers. The LRW-112 is designed for harsh industrial usage as well as road or railway installations meeting industrial level EMC specifications and having a wide operating temperature range. The unit also has a re-timing function that eliminates the problem of jitter and hence ensures reliable communications in all situations.
LRW-102 MM/SM
| • Power |
|
| Rated Voltage |
12 to 48 VDC
24 VAC
|
| Operating voltage |
10 to 60 VDC
20 to 30 VAC
|
| Rated current |
400 mA @ 12 VDC
200 mA @ 24 VDC
100 mA @ 48 VDC
|
| Rated frequency |
DC
|
| Inrush current I²t | 0.2 A2s |
| Startup current | 1.0 Apeak |
| Polarity | Reverse polarity protected |
| Redundant power input | Yes |
| Isolation to | TP/FT-10 port and status port |
| Galvanic connection to | – |
| Connection | 4-position detachable screw terminal |
| Connector size |
0.2 – 2.5 mm2 ( AWG 24-12)
|
| Shielded cable | Not required |
| • Status |
|
| Port type | Solid state relay |
| Operating voltage | Up to 60 VDC |
| Load current | Up to 100 mA |
| Contact rating | 500 mA @ 48 VDC |
| Contact resistance | < 50 mA |
| Isolation to | LON TP/FT-10 port and power port |
| Connection | 2-position detachable screw terminal |
| Connector size |
0.2 – 2.5 mm²(AWG 24 – 12)
|
| • LON Interface |
|
| Electrical specification | FTT-10A, EIA 709.3 |
| Data rate | 78.5 kbit/s |
| Data format | Different manchester |
| Protocol | EIA 709.1 |
| Transmission range | Bus Topology (2700 m [2.7 mi]), Free Topology (500 m [1640 ft]) |
| Settings | None, external termination and failsafe biasing |
| Protection | Installation Fault Tolerant (up to ±60 V) |
| Connection | 2-positon detachable screw terminal |
| Isolation to | Power and status port |
| Shielded cable | Not required |
| Conductive housing | Isolated to all other circuit and housing |
| • FX (fibre) |
|
| Fiber connector | MM LC2 : LC Duplex SM LC15;: LC Duplex |
| Fibre type | MM LC2 : Multimode.62.5/125 and 50/125µm SM LC15 : Singlemode. 9/125µm |
| Wavelength nm | MM LC2 : 1310 SM LC15 : 1310 |
|
Transmitter
Output optical power min/max |
MM LC2 : –20/–14 dBm SM LC15 : –15/–8 dBm |
|
Receiver
Input sensitivity, max
|
MM LC2 : -31 dBm SM LC15 : -31 dBm |
|
Receiver
Input optical power, max
|
MM LC2 : -8 dBmSM LC15 : -8 dBm |
|
Optical power budget,
worst-case
|
MM LC2 : 11 dB SM LC15 : 16 dB |
| Transceiver type |
Small Form Factor Pluggable (SFP)
Multi-Sourcing Agreement (MSA) compliant |
| Laser class | Class 1, IEC 825-1 Accessible Emission Limit (AEL) |
| • FX (fibre) |
|
| Fiber connector | Bi-di LC-20 : LC Simplex Bi-di MM LC-2 : LC Simpex |
| Fibre type | Bi-di LC-20 : Singlemode. 19/125µm Bi-di MM LC-2 :Multimode. 62.5/125 and 50/125 μm |
| Wavelength nm, connector 1 Wavelength nm, connector 1 |
Bi-di LC-20 :Tx1310, rx 1550 TX 1550, rx 1310 Bi-di MM LC-2 : Tx 1310, rx 1550 Tx 1550, rx 1310 |
|
Transmitter
Output optical power min/max |
Bi-di LC-20 : -10/0 dBm Bi-di MM LC-2 : –10/–8 dBm |
|
Receiver
Input sensitivity, max
|
Bi-di LC-20 : -20 dBm Bi-di MM LC-2 : -20 dBm |
|
Receiver
Input optical power, max
|
Bi-di LC-20 : 0 dBm Bi-di MM LC-2 : -0 dBm |
|
Optical power budget,
worst-case
|
Bi-di LC-20 : 18 dB Bi-di MM LC-2 : 18 dB |
| Transceiver type |
Small Form Factor Pluggable (SFP)
Multi-Sourcing Agreement (MSA) compliant
|
| Laser class | Class 1, IEC 825-1 Accessible Emission Limit (AEL) |
