Pub. 42004-178D
GAI-TRONICS 3030 KUTZTOWN RD. READING, PA 19605 USA
610-777-1374
800-492-1212
Fax: 610-796-5954
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Model 263
Isolation Barrier Unit
Confidentiality Notice
This manual is provided solely as an operational, installation, and maintenance guide and contains
sensitive business and technical information that is confidential and proprietary to GAI-Tronics.
GAI-Tronics retains all intellectual property and other rights in or to the information contained herein,
and such information may only be used in connection with the operation of your GAI-Tronics product or
system. This manual may not be disclosed in any form, in whole or in part, directly or indirectly, to any
third party.
General Information
GAI-Tronics Corporation offers intrinsically-safe (I.S.) telephones and isolation barrier units (IBU),
which conform to all pertinent requirements in the USA and Canada. For convenience, a telephone and
an IBU can be purchased together under a single model number: Model 261-001 for indoor use, and
Model 271-001 for outdoors.
However, for rack-mount configurations or special applications, the telephones and IBUs can be
purchased separately:
•
Model 262-001 Indoor I.S. Phone
•
Model 272-001 Outdoor I.S. Phone
•
Model 263 Isolation Barrier Unit
The I.S. telephones are designed to be installed in all hazardous areas. The IBU or rack-mount card unit
is placed in a non-hazardous area up to one mile from the phone, limiting the energy levels going to the
hazardous area to conform to intrinsically-safe requirements.
The Model 263 Isolation Barrier Unit is constructed of durable glass-reinforced polyester, which is highly
resistant to chemicals and weather, and is rated Type 3R (rainproof).
