32
LonWorks Router Electrical Interfaces
Figure 15
. Reset Circuit – Router 5000 for Both Halves
Typical applications do not require debounce conditioning of a momentary
pushbutton attached to the
RST~
pin. The software response time associated
with this input is long enough to effectively provide a software debounce for
switches with a contact bounce settling time as long as 20 milliseconds. The
RST~
signal must be driven low by a low voltage protection circuit on the router
motherboard as described in
Low Voltage Protection
on page 37.
See the
Series 5000 Chip Data Book
for more information about the RST~ pin for
a Series 5000 chip, including the Router 5000.
SVC~
The
SVC~
pin alternates between input and open-drain output at a 76 Hz rate
with a 50% duty cycle. When it is an output, it can sink up to 8 mA for use in
driving an LED. When it is used exclusively as an input, it uses an optional
external pull-up to bring the input to an inactive-high state.
Under control of the Neuron firmware, this pin is used during configuration,
installation, and maintenance of the Router 5000 device. The firmware flashes
the LED at a 1/2 Hz rate when the Router 5000 chip has not been configured with
network address information. Grounding the
SVC~
pin causes the Router 5000
Summary of Contents for 14315R
Page 1: ...LONWORKS Router User s Guide 078 0018 01E...
Page 6: ......
Page 9: ...Appendix A Communications Parameters for LonWorks Routers 81 Communications Parameters 82...
Page 10: ......
Page 48: ......
Page 53: ...LonWorks Router User s Guide 43 Figure 22 Router 5000 Mechanical Specifications...
Page 54: ......
Page 57: ...LonWorks Router User s Guide 47 Figure 23 RTR 10 Motherboard Example Schematic...
Page 61: ...LonWorks Router User s Guide 51 Figure 26 Router 5000 Motherboard Example Schematic Core...
Page 62: ...52 Developing a LonWorks Router Figure 27 Router 5000 Motherboard Example Schematic Network...
Page 68: ......
Page 80: ......
Page 99: ...www echelon com...
