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Patton's Model 509 units are easy to install and should give you
years of trouble-free service. Here are a few simple instructions to help
you get things hooked up right:
1. Check the label of the Model 509 to be sure that you have the
correct clamping voltage for your system. The Model 509/25 is for
RS-232 systems. The Model 509/6 is for RS-422 systems.
2. Unplug (disconnect) the existing connection between the coaxial
cable and the equipment's I/O port.
3. Install the Model 509 between the incoming coax and the protected
equipment (see below). Place the surge protector as close as
possible to the device being protected.
4. Connect the braided ground strap directly to a frame ground
connection on the protected device. If you are unsure where to
locate a frame ground connection on your equipment, consult the
equipment's user manual or contact the manufacturer—the ground
connection is critical for proper operation of the Model 509.
To Computer
Hardware
Figure 1. How to Connect the Patton Model DB-9 to Your Computer Hardware
3.0 INSTALLATION
MODEL 509
Note: This unit is bi-directional
4
To Data Cable
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