Communications parameters – Echelon LonWorks Router User Manual
Page 120

Communications Parameters
Table , 24, 25, and Table together list the communications parameters for
L
ON
W
ORKS
routers.
Table 23. Communications Parameters, Part 1
Parameter
TP/XF-78
TP/XF-1250
TP/FT-10
TP/RS485-39
Transceiver ID
1 (0x01)
3 (0x03)
4 (0x04)
5 (0x5)
Media
Isolated
Twisted Pair
Isolated
Twisted Pair
Free Topology
or Link Power
EIA-485
Twisted Pair
Neuron Chip to
Transceiver Interface
Differential
Differential
Single Ended Single Ended
Interface Bit Rate
78 kbps
1.25 Mbps
78 kbps
39 kbps
Input Clock
10 MHz
10 MHz
10 MHz
10 MHz
Minimum Clock
Configurable;
default = 5
MHz
Configurable;
default = 10
MHz
Configurable;
default = 5
MHz
Configurable;
default = 5
MHz
Number of Priority Slots
Configurable;
default = 4
slots
Configurable;
default = 16
slots
Configurable;
default = 4
slots
Configurable;
default = 4
slots
Average Packet Size
Configurable;
default = 15
bytes
Configurable;
default = 15
bytes
Configurable;
default = 15
bytes
Configurable;
default = 15
bytes
Oscillator Accuracy
200 ppm
200 ppm
200 ppm
200 ppm
Oscillator Wakeup
0 µsec
0 µsec
0 µsec
0 µsec
Collision Detect (CD)
No
No
No
No
CD Term after Preamble N/A
N/A
N/A
N/A
CD through Packet End
N/A
N/A
N/A
N/A
Bit Sync Threshold
5 bits
7 bits
4 bits
4 bits
Hysteresis
2
0
N/A
N/A
Filter
1
0
N/A
N/A
Network Bit Rate
78 kbps
1.25 Mbps
78 kbps
39 kbps
110
Communications Parameters for LONWORKS Routers