Installation and Commissioning
GARD 8000 SYS RFL Electronics
November 28, 2017 4-45 973.334.3100
4.6.3 POWER LINE CARRIER COMMISSIONING
NOTE
DURING SHIPPING, THE MODULES IN THE CHASSIS MAY BACK OUT OF
THEIR CONNECTORS. PRIOR TO BEGINNING THE STARTUP PROCEDURE,
OPEN THE FRONT DOOR, AND REMOVE AND RE-SEAT ALL FRONT PANEL
MODULES.
After the GARD 8000 PLC is installed and prior to being placed in service, a few basic adjustments
and measurements must be performed to ensure proper operation. The output power of the system
should be verified and adjusted if required, the output impedance of the transmitter must be adjusted to
match the actual impedance of the line, and the receiver must be adjusted for the actual receive signal
level.
This section assumes that the equipment has been installed and configured for the required application
in accordance with the preceding installation procedures. The Analog and Digital PLC modules are
hot pluggable. For servicing the Analog PLC Module an Extender Module is available from RFL.
This module will secure the PCB while allowing complete access. Part No. 500940.
4.6.3.1 EQUIPMENT REQUIREMENTS
The following equipment is required to perform the commissioning procedure:
1. Frequency-selective voltmeter (FSVM)
2. Potentiometer adjustment tool (or small flat-blade screwdriver)
3. 50 ohm (non-inductive) dummy load
For 50 or 100 watt systems using the RFL 9508 RF Chassis (high power amplifier)
see section 4.6.3.4.
4.6.3.1.1 SETTING THE TX LEVEL
It is advisable to verify the operation of the transmitter after installation into the system. This allows
checking the GARD 8000 PLC and line tuning equipment.
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