User Manual
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Buttons
The PLC/RS-485 Adapter device has two hardware push buttons:
SECURITY (Network ID) button – All PLC/RS-485 Adapter devices have a default Network
Encryption Key (NEK) set to “HomePlugAV” allowing them to communicate to each other. The
SECURITY button allows you to set a devices to a randomized Network Encryption Key (NEK) for
maximum security. You can then set other devices to the same NEK by using their SECURITY
button. Only units with the same NEK can communicate to each other.
Baud Rate Key button and lights:
1. This button allows you to change the Baud Rate speed to 1200,9600 and 19200. The two
PL7070-com device baud rate should be same.
2. The Baud Rate light will start to flashing if data is passing through the RS-485 Connector.
3. Locking and Unlocking the Baud Rate:
• To lock a specific Baud Rate on the PL7070-COM adapter, simply press the Baud
Rate Key button for about 8 seconds. The correspond led will flash if the time
is reached, meaning that the baud rate is locked. To Unlock the Baud Rate,
press the Baud Rate Key button again for about 8 seconds; then it will unlock,
or powering OFF then ON will unlock the baud rate.
SETTING A RANDOMIZED PLC NETWORK PASSWORD (NEK)
1. Select a PL7070-COM Adapter (Device A) and plug into an AC outlet. The POWER light
indicator should be lit solid green.
a. Press the SECURITY button BRIEFLY (0.5 to 2 seconds) and release. The POWER light
should now be blinking green.
b. IMPORTANT: If the POWER light is not blinking green, repeat Step “a” until the
power light blinks green.
c. This unit is now ready to create a new randomized NEK (Net Encryption Key)
network. This unit will remain in this “adder” mode for about 2 minutes.
2. Select another PL7070-COM Adapter (Device B) and plug into a second outlet.
a. Press the SECURITY button BRIEFLY (0.5 to 2 seconds) and release. The POWER light
should now be blinking green.
b. IMPORTANT: If the power light is not blinking green, repeat Step “a” until the power
light is blinking green.
3. In about 15 seconds the POWER light will change from flashing green to solid green and
the PLC ACT (Power line Communication Activity) light will turn solid green (flashing
green when there is data traffic) indicating they are synchronized with the same NEK.
4. Congratulations, you are done!
DeviceA DeviceB
PLCACTlight
Powerlight