Encompass 4 Reader System Guide
4-8
3. Short the outer metal case of the load or atten
uator to Earth Ground for
approximately 10 seconds (see item 2 in Figure 4-3). In this example, the
operator is using the mounting screw of the electrical
outlet faceplate for Earth
Ground.
4. Remove the load or attenuator from the RF ca
ble and connect cable to reader.
Once the antenna is discharged and properly connec
ted to the reader, the reader
circuitry provides a DC path to keep any further charge from building up in the
antenna.
Caution
TransCore does not recommend using a screwdriv
er or other tool to short the
RF cable center conductor to the outer ground of the cable. This grounding
method can damage the center pin or the threads of the connector.
TransCore
strongly advises that you use adequate Earth Ground for this voltage
discharge procedure in accordance with the National Electric Code for the
locale where you are installing the Encompass 4 Reader.
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