Sensaphone Express II - Manual (Page 89)

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Appendix D: Engineering Specifications
VII. Enclosure and Environmental
A. Enclosure
The system shall be housed in a NEMA-4 fiberglass enclosure with a latched window
cover and shall be internally constructed such that modular plug-in expansion cards may
be used to facilitate field upgrades, repair, and maintenance.
B. Electrical Protection
Power and telephone connections shall have internal spike and surge protection using
metal oxide varistors. All input channels shall have fault protected input circuits.
C. Additional Electrical Surge Protection
Additional Power and Telephone line surge protection shall be available from the
manufacturer. When so installed, the system shall be fully warranted against any
damage caused by transient surges entering the system through Power or Telephone
lines.
D. Environmental
The system shall function over an operating range of 32°F–120°F at up to 0–90% RH,
non-condensing. The system may be stored over the temperature range of 0°–130°F.
E. Maintenance
The system manufacturer shall have in-house service facilities and technical assistance
available during normal business hours, Monday–Friday 8
AM
–5
PM
(EST).
F. Safety Approvals
The system shall be approved by a Nationally Recognized Testing Laboratory (NRTL) to
UL Standard 1950 “Information Technology Equipment” and CSA Standard 22.2 #950.
Specifications subject to change without notice.
© 1997 Phonetics, Inc.
Phonetics, Inc.
901 Tryens Road
Aston, PA 19014
Phone: 610-558-2700
FAX: 610-558-0222
www.sensaphone.com
Appendix D: Engineering Specifications