For the receive performance verification, a PC running nodetuil.exe (available onEchelon’s web site in the Developer’s Toolbox at www.echelon.com/toolbox) isrequired. The Node Status command will be used to obtain a record of the number ofuncorrupted packets received by the Unit Under Test (UUT). This set-up will bedescribed in detail in a later section.Good Citizen VerificationUse the following steps to verify that the Unit Under Test (UUT) does not injectunwanted noise onto the power mains or excessively load the power mains.Unintentional Output Noise VerificationThe following procedure determines if the UUT is generating unwanted noise whichmay hinder its communication performance or that of other devices on the powermains.1 Connect a single PCLA-22 analyzer, the UUT, and the Isolator as shown infigure 7.6. Verify that the anlayzer is set for C-band operation by observing theselected band in the upper right-hand corner of the LCD display (if it is set forA-band, then it must be changed to C-band using the Setup screen of theanlayzer). Leave the PLCA-22 analyzer in idle mode (no packets beingtransmitted) and set it for Internal and Line-to-Neutral coupling (coupling modeswitch to the right).2 Verify that the UUT application program is not sending messages.3 Observe the signal strength bar graph LEDs. None of the LEDs, abovethe -72dB LED, should be flashing on either the primary or secondary bar graphmeters. In addition, the Packet Detect (PKD) LEDs should not flash any morethan once per minute.7-6 Communication Performance Verification
