Patton 540 User Manual

UUSSEERR
MMAANNUUAALL

MODEL 540

3270 (BNC) Surge
Protectors

SALES OFFICE
[phone]
TECHNICAL SUPPORT
[phone]
http://www.patton.com

Part# 07M540-B
Doc# 074011UB
Revised 08/08/93

1.0 WARRANTY INFORMATION

Patton Electronics warrants all Model 540 components to be free
from defects, and will—at our option—repair or replace the product
should it fail within one year from the first date of shipment.

This warranty is limited to defects in workmanship or materials,
and does not cover customer damage, abuse, or unauthorized modifi­cation. If this product fails or does not perform as warranted, your sole
recourse shall be repair or replacement as described above. Under no
condition shall Patton Electronics be liable for any damages incurred
by the use of this product. These damages include, but are not limited
to, the following: lost profits, lost savings, and incidental or conse­quential damages arising from the use of or inability to use this prod­uct. Patton Electronics specifically disclaims all other warranties,
expressed or implied, and the installation or use of this product shall
be deemed an acceptance of these terms by the user.

1.1 SERVICE

All warranty and non-warranty repairs must be returned freight
prepaid and insured to Patton Electronics. All returns must have a
Return Materials Authorization number on the outside of the shipping
container. This number may be obtained from Patton Electronics
Technical Service at [phone].

Packages received without an

RMA number will not be accepted.

Patton Electronics' technical staff is also available to answer any
questions that might arise concerning the installation or use of your
Model 540. Technical Service hours: 8AM to 5PM EST, Monday

through Friday.

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2.0 GENERAL INFORMATION

Thank you for your purchase of this Patton Electronics product.
This product has been thoroughly inspected and tested and is warrant­ed for One Year parts and labor.

If any questions or problems arise during installation or use of this
product, please do not hesitate to contact Patton Electronics Technical
Support at [phone].

2.1 FEATURES

• Designed specifically for IBM 3270 environments

• Connects directly to IBM controllers, terminals, etc.

• Surge capacity of 5kA (8/20µS waveform)

• Protects against transients from either direction

• Provides separate connection to chassis ground

• Easy to install

• Made in USA

2.2 DESCRIPTION

The Model 540 is a primary surge protector designed specifical­ly for IBM 3270 environments. The Model 540 provides a clamping
voltage of 11 volts and a response time of less than 5 nanoseconds.
To offer extra protection, the Model 540 utilizes a "two point"
approach and guards against both positive and negative transients.

Connecting directly to your equipment, the Model 540 can han­dle repeated surges up to 5kA. If the Model 540 receives a surge,

all

voltages will be sent directly to ground through a heavy duty 6"
braided metal strap and your hardware will be protected. The Model
540 is housed in an ABS plastic case and measures only 2.0" x 1.0".

Warning—This product will not provide complete protection
should your equipment or building be subject to a direct lightening
hit.

3.0 INSTALLATION

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 equip­ment's user manual or contact the manufacturer. This ground con­nection is critical for proper operation of the Model 540.

APPENDIX A

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

O

C (-67 to +212OF)

Grounding: External connection provides separate unit-

ground to chassis-ground contact

Size: 2.0" long x 1.0" diameter
Case: Molded ABS black plastic

Coaxial input
from Network

Output to protected

equipment

Connection to frame

ground

Model 540 Coax

Surge Protector

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