6 How to use the NMK Pushbutton
This section describes how to add new devices to, or remove old devices from a HomePlug
AV logical network (AVLN, both can be accomplished using a NMK pushbutton press.
Operation progress and outcome can be monitored by observing the behavior of the Power
LED.
6.1 Forming a HomePlug AV logical network
When two devices with different NMK values are connected to the same powerline, and
wants them to form a logical network.
1. Press the NMK button on the first device A for less than 3 seconds.
2. Press the NMK button on the second device B for less than 3 seconds. The button
on B must be pressed within 1 minute
3. Wait for connection to complete.
The Power LED on both devices will flash evenly at 1-second intervals until the operation
succeeds or fails. It will illuminate steadily on successful completion. If an error occurs, the
Power LED on the 'adder' will flash unevenly until the pushbutton on the 'adder' is pressed
again or the 'joiner' is reset by holding the pushbuttons down for more than 10 seconds.
PLC
A
Press NMK button on A less than 3 sec.
Press NMK button on B less than 3 sec.
B determines that A MAC address <B MAC address
Forming a HomePlug AV logical network
B
PLC
A and B are not part of AVLN
A and B want to form an AVLN
A becomes "joiner"
B becomes "joiner"
B becomes "adder"
A accepts NMK from B
12
C
PLC