Repairs to certified equipment should be coordinated by a
representative designated by the supplier. Any repairs or alterations
made by the user to this equipment, or equipment malfunctions, may
give the telecommunications company cause to request the user to
disconnect the equipment.
Users should ensure for their own protection that the electrical
ground connections of the power utility, telephone lines and internal
metallic water pipe system, if present, are connected together. This
precaution may be particularly important in rural areas. Caution: Users
should not attempt to make such connections themselves, but should
contact the appropriate electric inspection authority, or electrician, as
appropriate.
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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 you have any questions while
installing or using this product, please do not hesitate to contact Patton
Electronics Technical Support at (301) 975-1007.
2.1 FEATURES
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Uses a multi-stage hybrid circuit for the best possible protection
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Handles surge energy up to 1.5 kW
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Conforms to the UL497A telco specification (except E1 versions)
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Available for ISDN-U (8-wire), ISDN-ST (4-wire), T1, E1, ISDN
PRI, DDS, leased line and dial up configurations
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Diverts surges directly to chassis ground through braided metal
ground strap
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Equipped with two RJ-45 jacks or four BNC connectors
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Easy to install
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Made in the U.S.A.
2.2 DESCRIPTION
The potential threats to ISDN and Telco hardware are vast:
lightning, AC power induction, electrostatic discharge, ground potential
differences, EMI/RFI interference and more. The Patton Model 552 has
been designed to greatly reduce these risks. Just attach one unit to
each of your telco ports and rest easy.
The Model 552 connects directly between twisted pair telco cables
and their respective I/O ports. Grounding is accomplished using an
external ground strap that provides a separate unit-ground to chassis-
ground connection. By shunting threatening voltages directly to chassis
ground, the Model 552 insures data integrity and protects connected
equipment from damage.
The Model 552 uses a solid state design and sophisticated
multistage hybrid circuits to achieve maximum protection without
performance loss. Eight versions are available: Model 552-ST, 552-D8,
and 552-L8 protect all 8 pins; Model 552-D6 protects six pins; Models
552-DDS, 552-D4, 552-U, 552-L4, 552-E1, 552-E1 CX, and 552-T1
protect four pins; and, Model 552-D2 protects two pins. All versions
provide up to 1500 Watts of data line protection.
NOTE: Model 552-L8 may be used to protect Leased Line, DDS,
T1, E1, ISDN PRI, and ISDN BRI “U” and “ST” interfaces.
WARNING!: This product will not provide complete protection
should your equipment or building be subject to a direct lightning hit.
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Summary of Contents for MODEL 552
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