Power Line Carrier
GARD 8000 SYS RFL Electronics
April 23, 2015 10-14 973.334.3100
1. Place the analog module on an extender card.
2. Verify that the TX filter, and Hybrid is jumpered for the appropriate configuration, and
terminate the output with a non-inductive nominal load.
3. Force the carrier on and to 10W.
On the test page, change the setting “Force Carrier” to “On.”
Then click on “Run Test”.
4. Adjust R5 & C2 on the analog module such that the Tx carrier signal at TP2 on the digital
module is at a minimum. Occasionally R2 will also need to be adjusted to achieve a minimum
level.
5. Calibrate the Tx Level:
On the test page, enable the checkbox for “Calibrate TX Level.”
Click on “Run Test”.
6. Verify the reading for TX level is 40dBm.
7. Return carrier to normal.
On the test page, change the setting “Force Carrier” to “normal”.
Then click on “Run Test.”
8. Turn the carrier off:
On the test page, change the setting “Force Carrier” to “Off”.
Click on “Run Test.”
9. Calibrate the DC offset.
On the test page, change the setting “Calibrate RPM” to “Calibrate DC”.
Click on “Run Test.”
10. Force the carrier on and to 1W and confirm setting in the PLC settings page.
On the test page, change the setting “Force Carrier” to “On.”
Then click on “Run Test”.
11. Put a 25 ohm load across the Line port (or in Tx port in 4W application)
12. Calibrate the gain:
On the test page, change the setting “Calibrate RPM” to “Calibrate Gain.”
Click on “Run Test”.
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