Echelon LonWorks Router - Manual (Page 18)

L ON W ORKS router. Although not shown in the figure, you can place a Router
5000 half router (with its transceiver module) and FT Router 5000 half router on
the same motherboard to create a L ON W ORKS router.
A complete L ON W ORKS router can be packaged in an enclosure to meet unique
form factor and environmental requirements. Depending on the application, the
package could contain a single router sub-assembly, or could include other
application-specific hardware. Multiple routers can be packaged together for
some applications, such as a backbone connecting multiple channels.
Unlike an RTR-10 router, you store the L
ON W ORKS transceiver parameters for
each Router 5000 or FT Router 5000 half router in external EEPROM, thus
allowing you to define the appropriate transceiver type for each side.
Comparing the RTR-10, Router 5000, and FT Router
5000
Table 2 lists some of the major characteristics of the three router products
described in this manual.
Table 2. Comparing the RTR-10, Router 5000, and FT Router 5000
Parameter RTR-10 Router 5000 FT Router 5000
Package Integrated module with
both A side and B side
7mm x 7mm QFN chip 7mm x 7mm QFN chip
Voltage 5 V 3.3 V 3.3 V
Clock rate 10 MHz A side
≤10 MHz B side 5, 10, 20, or 40 MHz
system clock
(10 MHz crystal)
5, 10, 20, or 40 MHz
system clock
(10 MHz crystal)
Router Buffers 1408 bytes 25 KB 25 KB
Transceivers Any TP/FT-10
TP-RS485
TP/XF-78
TP/XF-1250
LPT-11 Link-power
Other (contact Echelon
Support)
TP/FT-10
(requires an FT-X3
Communications
Transformer)
The main difference between the Router 5000 and the FT Router 5000 is their
transceiver support. The FT Router 5000 supports only the TP/FT-10 channel,
but because the transceiver is integrated into the chip, you do not need to use an
FTT-10A Free Topology Transceiver (and associated circuitry to accommodate the
different voltage standards between the half router and transceiver).
8 Introduction to LONWORKS Routers