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3.0 INSTALLATION
Patton's Model 545 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. Unplug (disconnect) the existing connection between the twinaxial
cable and the equipment I/O port.
2. Install the Model 545 MF between the incoming coax line and the
protected* equipment (see Figure 1, below). Install the Model
545 MFF between the incoming and outgoing coax lines and
connect the "T" to the protected equipment (see Figure 2, below).
In both cases, you should place the surge protector as close as
possible to the device being protected.
3. 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 545.
Connection to frame
ground
Coaxial input
from Network
Figure 1. Model 545 MF connection
Output to protected
equipment
Coaxial input
from Network
Figure 2. Model 545 MFF connection
*Note: The Model 545 provides bi-directional protection on all (2 or 3)
twinax connectors, therefore it does not matter which connector(s)
attach(es) to the equipment, and which to the network.
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Output to protected
equipment
Coaxial output to
Network
Connection to frame
ground
APPENDIX A
SPECIFICATIONS
Interface: IBM AS/400, 3X (twinaxial)
Size: 2.0" long x 1.0" diameter (without connectors)
Circuit: Bipolar, solid state protection on twinax connectors
Energy Handling: Line to signal ground - 1.5 KW for 1 mS
Response Time: clamped to + or - 20 volts after 0.5 µS
Input Capacitance: 45 pF
Series Resistance: None
Isolation: 75V shield ground to signal ground
Grounding: External connection provides separate unit-ground to
chassis-ground contact
Operational/Storage Temperature: -55 to +100°C
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