Echelon LonWorks Router Manual de usuario Pagina 123

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Parameter RF-10 PL-10 PL-20C PL-20N
Preamble Length N/A 36.7 bits 33.5 bits 33.5 bits
Use Raw Data No No No No
Table 25. Communications Parameters, Part 3
Parameter PL-30
TP/RS485-
625
TP/RS485-
1250 TP/RS485-78
Transceiver ID 18 (0x12) 10 (0x0A) 11 (0x0B) 12 (0x0C)
Media Power Line EIA-485
Twisted Pair
EIA-485
Twisted Pair
EIA-485
Twisted Pair
Neuron Chip to
Transceiver Interface
Special
Purpose
Single Ended Single Ended Single Ended
Interface Bit Rate 625 kbps 625 kbps 1.25 Mbps 78 kbps
Input Clock 10 MHz 10 MHz 10 MHz 10 MHz
Minimum Clock Configurable;
default = 5
MHz
Configurable;
default = 5
MHz
Configurable;
default = 5
MHz
Configurable;
default = 5
MHz
Number of Priority Slots Configurable;
default = 12
slots
Configurable;
default = 4
slots
Configurable;
default = 16
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) N/A 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 N/A 4 bits 4 bits 4 bits
Hysteresis N/A N/A N/A N/A
Filter N/A N/A N/A N/A
LONWORKS Router User’s Guide 113
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