User Guide

– –
– –
30 31
Figure 26 shows the MODE_IND displays in a graphical format.
Using the PB Line
The PB Line is used to trigger functions associated with the Join Process.
This line should be connected to a momentary pushbutton that pulls the
line to VCC when it is pressed and opens the circuit when it is released.
The sequence of presses determines which function is triggered. Figure 27
shows the sequences.
Figure 25: HumPRC
TM
Series MODE_IND Line Timing
Using the MODE_IND Line
The MODE_IND line is designed to be connected to an LED to provide
visual indication of the module’s status and current actions. The pattern of
blinks indicates the particular feedback from the module. Figure 25 shows
the different blink patterns and their meanings.
HumPRC
TM
Series Transceiver MODE_IND Line Timing
Display
[on/off time in seconds]
Module Status
Join Operation
Two quick blinks
Administrator Join. The administrator is looking for a node
to join with.
One quick blink
Node Join. The node is looking for an administrator to join
with.
Quick blink
Key Transfer Active. Key transfer is taking place
(administrator and node).
Slow Blink
Key Transfer Complete. The module has completed a key
transfer (administrator and node).
Temporary On On when the PB line is high
Two quick blinks, one time Join Canceled.
Slow blink, repeat 3 times
Failure. For Share Key or Get Key, there are multiple
units attempting to pair, protocol error, or timeout without
response
Slow blink and two quick
blinks
Long Hold Acknowledgement. The long hold period for
Generate Key or Reset Sequence was recognized (PB is
asserted)
Key Test Results
One quick blink Three
times
No Key. There is no network key or network address.
Two quick blinks Three
times
Key Set, node. The network key and network address are
set on a node.
Three quick blinks Three
times
Key Set, administrator. The network key and network
address are set on an administrator.
Normal operation
Off No activity
Temporarily on Transmitting or receiving packet
Administrator Join
Node Join
Key Transfer Active
Repeats for 30 seconds or until JOIN is complete
Repeats for 30 seconds or until JOIN is complete
Repeats for the duration of the transfer
Key Transfer Complete
JOIN Cancelled
Long Hold
Repeats for as long as the PB line is asserted
after the long hold period has been recognized
Failure
No Key Set
Repeats, three times total
Key Set, Node
Repeats, three times total
Key Set, Administrator
Repeats, three times total
OperationMODE_IND Display Comments
Six blinks total
0 0.5 121.5
2.5
Time (seconds)
Figure 26: HumPRC
TM
Series MODE_IND Displays
HumPRC
TM
Series Transceiver PB Line Operation
Function Sequence
Join a network 1 short pulse
Cancel a Join Process that is in progress 1 short pulse
Generate a network key and address;
9,600bps
Hold high for 30 seconds
Generate a network key and address;
57,600bps
2 short pulses and hold high for 30 seconds
Reset to factory defaults 4 short pulses and hold high for 3 seconds
Test key and address 3 short pulses
A short pulse is a logic high that is between 100 and 2,000ms in duration.
Figure 27: HumPRC
TM
Series PB Line Operation