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Patton electronics 540 User Manual page 3

3270 (bnc) surge protectors

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The Patton Model 540 is easy to install. The following instructions
clearly explain each step:
1.
Unplug the existing connection between the coaxial cable and
the equipment's I/O port.
2.
Install the Model 540 between the incoming coax line and the
protected equipment (see below). Place the surge protector as
close as possible to the device being protected.
3.
Connect the braided grounding strap directly to an earth
ground connection on the protected device. If you are not sure
where to locate an earth ground connection, consult the equip-
ment's user manual or contact the manufacturer. This ground con-
nection is critical for proper operation of the Model 540.
Connection to frame
ground
Coaxial input
from Network
Output to protected
equipment
3
SPECIFICATIONS
Interface: IBM 3270 (BNC coaxial)
Circuit: Solid state primary surge protection, bi-
directional protection on BNC connectors
Response Time: Less than 5 nanoseconds
Maximum Operating Voltage: +/- 5.6V
Capacitance: 5 pF (line-line or ground-line)
Maximum Clamp Voltage: 11 volts when subjected to a 6kV/3kA
test transient
Surge Capacity: 5kA (8/20µS waveform)
Bandwidth (3dB) in 50/50 ohm circuit: 80MHz
Series Resistance: 4.3 ohms
Operational/Storage Temperature: -55 to +100
Grounding: External connection provides separate unit-
ground to chassis-ground contact
Size: 2.0" long x 1.0" diameter
Case: Molded ABS black plastic
4
O
C (-67 to +212
O
F)

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